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authorGabe Black <gabeblack@google.com>2013-05-16 05:45:57 -0700
committerStefan Reinauer <stefan.reinauer@coreboot.org>2013-07-10 20:08:53 +0200
commit607c0b6d63f88c84661582800f2ee9a49325fcdb (patch)
tree9b26c0530ee09ef661610fb1faef2a1813e3da6c
parentdc006c1db4fa3606d657c78cc87dc13d056e970d (diff)
downloadcoreboot-607c0b6d63f88c84661582800f2ee9a49325fcdb.tar.xz
pit: Create an exynos5420 directory which is nearly a copy of exynos5250.
This change creates an exynos5420 directory with code that will eventually implement support for the exynos5420 cpu from Samsung. Currently it's a copy of the exynos5250 directory with the name changed. There are going to be some problems where headers in src/cpu/samsung/exynos-common include headers in the exynos5250 directory directly. Change-Id: Ia8d7244310d32499238bbc171c0c668ec48178e1 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3644 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
-rw-r--r--src/cpu/samsung/Kconfig16
-rw-r--r--src/cpu/samsung/Makefile.inc3
-rw-r--r--src/cpu/samsung/exynos5420/Kconfig133
-rw-r--r--src/cpu/samsung/exynos5420/Makefile.inc55
-rw-r--r--src/cpu/samsung/exynos5420/bootblock.c43
-rw-r--r--src/cpu/samsung/exynos5420/chip.h40
-rw-r--r--src/cpu/samsung/exynos5420/clk.h624
-rw-r--r--src/cpu/samsung/exynos5420/clock.c691
-rw-r--r--src/cpu/samsung/exynos5420/clock_init.c445
-rw-r--r--src/cpu/samsung/exynos5420/cpu.c181
-rw-r--r--src/cpu/samsung/exynos5420/cpu.h130
-rw-r--r--src/cpu/samsung/exynos5420/dmc.h343
-rw-r--r--src/cpu/samsung/exynos5420/dmc_common.c183
-rw-r--r--src/cpu/samsung/exynos5420/dmc_init_ddr3.c277
-rw-r--r--src/cpu/samsung/exynos5420/dp-core.h268
-rw-r--r--src/cpu/samsung/exynos5420/dp-reg.c495
-rw-r--r--src/cpu/samsung/exynos5420/dp.h497
-rw-r--r--src/cpu/samsung/exynos5420/dsim.h109
-rw-r--r--src/cpu/samsung/exynos5420/fb.c597
-rw-r--r--src/cpu/samsung/exynos5420/fimd.h138
-rw-r--r--src/cpu/samsung/exynos5420/gpio.c279
-rw-r--r--src/cpu/samsung/exynos5420/gpio.h578
-rw-r--r--src/cpu/samsung/exynos5420/i2c.c405
-rw-r--r--src/cpu/samsung/exynos5420/i2c.h41
-rw-r--r--src/cpu/samsung/exynos5420/i2s-regs.h142
-rw-r--r--src/cpu/samsung/exynos5420/mct.c104
-rw-r--r--src/cpu/samsung/exynos5420/monotonic_timer.c57
-rw-r--r--src/cpu/samsung/exynos5420/periph.h69
-rw-r--r--src/cpu/samsung/exynos5420/pinmux.c298
-rw-r--r--src/cpu/samsung/exynos5420/pinmux.h55
-rw-r--r--src/cpu/samsung/exynos5420/power.c138
-rw-r--r--src/cpu/samsung/exynos5420/power.h90
-rw-r--r--src/cpu/samsung/exynos5420/pwm.c191
-rw-r--r--src/cpu/samsung/exynos5420/pwm.h70
-rw-r--r--src/cpu/samsung/exynos5420/reset.c26
-rw-r--r--src/cpu/samsung/exynos5420/setup.h753
-rw-r--r--src/cpu/samsung/exynos5420/spi.c222
-rw-r--r--src/cpu/samsung/exynos5420/spi.h98
-rw-r--r--src/cpu/samsung/exynos5420/sysreg.h37
-rw-r--r--src/cpu/samsung/exynos5420/timer.c110
-rw-r--r--src/cpu/samsung/exynos5420/timer.h25
-rw-r--r--src/cpu/samsung/exynos5420/tmu.c215
-rw-r--r--src/cpu/samsung/exynos5420/tmu.h134
-rw-r--r--src/cpu/samsung/exynos5420/uart.c200
-rw-r--r--src/cpu/samsung/exynos5420/uart.h54
-rw-r--r--src/cpu/samsung/exynos5420/wakeup.c50
-rw-r--r--src/cpu/samsung/exynos5420/wakeup.h42
-rw-r--r--src/mainboard/google/snow/Kconfig2
48 files changed, 9749 insertions, 4 deletions
diff --git a/src/cpu/samsung/Kconfig b/src/cpu/samsung/Kconfig
index 9e2ec4cd5d..3b6df9ec61 100644
--- a/src/cpu/samsung/Kconfig
+++ b/src/cpu/samsung/Kconfig
@@ -1,4 +1,4 @@
-config CPU_SAMSUNG_EXYNOS5
+config CPU_SAMSUNG_EXYNOS5250
depends on ARCH_ARMV7
select HAVE_MONOTONIC_TIMER
select HAVE_UART_SPECIAL
@@ -6,6 +6,18 @@ config CPU_SAMSUNG_EXYNOS5
bool
default n
-if CPU_SAMSUNG_EXYNOS5
+config CPU_SAMSUNG_EXYNOS5420
+ depends on ARCH_ARMV7
+ select HAVE_MONOTONIC_TIMER
+ select HAVE_UART_SPECIAL
+ select DEFAULT_EARLY_CONSOLE
+ bool
+ default n
+
+if CPU_SAMSUNG_EXYNOS5250
source src/cpu/samsung/exynos5250/Kconfig
endif
+
+if CPU_SAMSUNG_EXYNOS5420
+source src/cpu/samsung/exynos5420/Kconfig
+endif
diff --git a/src/cpu/samsung/Makefile.inc b/src/cpu/samsung/Makefile.inc
index 91109834b3..496b5f7be3 100644
--- a/src/cpu/samsung/Makefile.inc
+++ b/src/cpu/samsung/Makefile.inc
@@ -1 +1,2 @@
-subdirs-$(CONFIG_CPU_SAMSUNG_EXYNOS5) += exynos5250
+subdirs-$(CONFIG_CPU_SAMSUNG_EXYNOS5250) += exynos5250
+subdirs-$(CONFIG_CPU_SAMSUNG_EXYNOS5420) += exynos5420
diff --git a/src/cpu/samsung/exynos5420/Kconfig b/src/cpu/samsung/exynos5420/Kconfig
new file mode 100644
index 0000000000..2f7ea943d4
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/Kconfig
@@ -0,0 +1,133 @@
+config BOOTBLOCK_CPU_INIT
+ string
+ default "cpu/samsung/exynos5420/bootblock.c"
+ help
+ CPU/SoC-specific bootblock code. This is useful if the
+ bootblock must load microcode or copy data from ROM before
+ searching for the bootblock.
+
+config EXYNOS_ACE_SHA
+ bool
+ default n
+
+config BL1_SIZE_KB
+ int
+ default 8
+
+# Example SRAM/iRAM map for Exynos5420 platform:
+#
+# 0x0202_0000: vendor-provided BL1
+# 0x0202_3400: bootblock, assume up to 32KB in size
+# 0x0203_0000: romstage, assume up to 128KB in size.
+# 0x0207_8000: stack pointer
+
+config BOOTBLOCK_BASE
+ hex
+ default 0x02023400
+
+config ROMSTAGE_BASE
+ hex
+ default 0x02030000
+
+config ROMSTAGE_SIZE
+ hex
+ default 0x10000
+
+# Stack may reside in either IRAM or DRAM. We will define it to live
+# at the top of IRAM for now.
+#
+# Stack grows downward, push operation stores register contents in
+# consecutive memory locations ending just below SP
+config STACK_TOP
+ hex
+ default 0x02078000
+
+config STACK_BOTTOM
+ hex
+ default 0x02077000
+
+config STACK_SIZE
+ hex
+ default 0x1000
+
+config CBFS_ROM_OFFSET
+ # Calculated by BL1 + max bootblock size.
+ hex "offset of CBFS data in ROM"
+ default 0x0A000
+
+# TODO Change this to some better address not overlapping bootblock when
+# cbfstool supports creating header in arbitrary location.
+config CBFS_HEADER_ROM_OFFSET
+ hex "offset of master CBFS header in ROM"
+ default 0x2040
+
+# TODO We may probably move this to board-specific implementation files instead
+# of KConfig values.
+config CBFS_CACHE_ADDRESS
+ hex "memory address to put CBFS cache data"
+ default 0x02060000
+
+config CBFS_CACHE_SIZE
+ hex "size of CBFS cache data"
+ default 0x000017000
+
+# FIXME: This is for copying SPI content into SRAM temporarily and
+# will be removed when we have the SPI streaming driver implemented.
+config SPI_IMAGE_HACK
+ hex
+ default 0x02060000
+
+# FIXME: other magic numbers that should probably go away
+config XIP_ROM_SIZE
+ hex
+ default ROMSTAGE_SIZE
+
+config SYS_SDRAM_BASE
+ hex
+ default 0x40000000
+
+config SYS_TEXT_BASE
+ hex
+ default 0x43e00000
+
+config COREBOOT_TABLES_SIZE
+ hex
+ default 0x4000000
+
+choice CONSOLE_SERIAL_UART_CHOICES
+ prompt "Serial Console UART"
+ default CONSOLE_SERIAL_UART3
+ depends on CONSOLE_SERIAL_UART
+
+config CONSOLE_SERIAL_UART0
+ bool "UART0"
+ help
+ Serial console on UART0
+
+config CONSOLE_SERIAL_UART1
+ bool "UART1"
+ help
+ Serial console on UART1
+
+config CONSOLE_SERIAL_UART2
+ bool "UART2"
+ help
+ Serial console on UART2
+
+config CONSOLE_SERIAL_UART3
+ bool "UART3"
+ help
+ Serial console on UART3
+
+endchoice
+
+config CONSOLE_SERIAL_UART_ADDRESS
+ hex
+ depends on CONSOLE_SERIAL_UART
+ default 0x12c00000 if CONSOLE_SERIAL_UART0
+ default 0x12c10000 if CONSOLE_SERIAL_UART1
+ default 0x12c20000 if CONSOLE_SERIAL_UART2
+ default 0x12c30000 if CONSOLE_SERIAL_UART3
+ help
+ Map the UART names to the respective MMIO address.
+
diff --git a/src/cpu/samsung/exynos5420/Makefile.inc b/src/cpu/samsung/exynos5420/Makefile.inc
new file mode 100644
index 0000000000..c3416c4cf7
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/Makefile.inc
@@ -0,0 +1,55 @@
+# Run an intermediate step when producing coreboot.rom
+# that adds additional components to the final firmware
+# image outside of CBFS
+INTERMEDIATE += exynos5420_add_bl1
+
+bootblock-y += spi.c
+bootblock-y += pinmux.c mct.c power.c
+# Clock is required for UART
+bootblock-$(CONFIG_EARLY_CONSOLE) += clock_init.c
+bootblock-$(CONFIG_EARLY_CONSOLE) += clock.c
+bootblock-$(CONFIG_EARLY_CONSOLE) += monotonic_timer.c
+bootblock-$(CONFIG_EARLY_CONSOLE) += uart.c
+bootblock-y += wakeup.c
+bootblock-y += gpio.c
+bootblock-$(CONFIG_EARLY_CONSOLE) += pwm.c
+bootblock-$(CONFIG_EARLY_CONSOLE) += timer.c
+
+romstage-y += spi.c
+romstage-y += clock.c
+romstage-y += clock_init.c
+romstage-y += pinmux.c # required by s3c24x0_i2c and uart.
+romstage-y += dmc_common.c
+romstage-y += dmc_init_ddr3.c
+romstage-y += power.c
+romstage-y += mct.c
+romstage-y += monotonic_timer.c
+romstage-$(CONFIG_EARLY_CONSOLE) += uart.c
+romstage-y += wakeup.c
+romstage-y += pwm.c # needed by timer.c
+romstage-y += gpio.c
+romstage-y += timer.c
+romstage-y += i2c.c
+#romstage-y += wdt.c
+
+ramstage-y += spi.c
+ramstage-y += clock.c
+ramstage-y += clock_init.c
+ramstage-y += pinmux.c
+ramstage-y += power.c
+ramstage-$(CONFIG_CONSOLE_SERIAL_UART) += uart.c
+ramstage-y += cpu.c
+ramstage-y += tmu.c
+ramstage-y += mct.c
+ramstage-y += monotonic_timer.c
+ramstage-y += pwm.c # needed by timer.c
+ramstage-y += timer.c
+ramstage-y += gpio.c
+ramstage-y += i2c.c
+ramstage-y += dp-reg.c
+ramstage-y += fb.c
+
+exynos5420_add_bl1: $(obj)/coreboot.pre
+ printf " DD Adding Samsung Exynos5420 BL1\n"
+ dd if=3rdparty/cpu/samsung/exynos5420/bl1.bin \
+ of=$(obj)/coreboot.pre conv=notrunc >/dev/null 2>&1
diff --git a/src/cpu/samsung/exynos5420/bootblock.c b/src/cpu/samsung/exynos5420/bootblock.c
new file mode 100644
index 0000000000..f5234283ff
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/bootblock.c
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include "clk.h"
+#include "wakeup.h"
+
+void bootblock_cpu_init(void);
+void bootblock_cpu_init(void)
+{
+ /* kick off the multi-core timer.
+ * We want to do this as early as we can.
+ */
+ mct_start();
+
+ if (get_wakeup_state() == WAKEUP_DIRECT) {
+ wakeup();
+ /* Never returns. */
+ }
+
+ /* For most ARM systems, we have to initialize firmware media source
+ * (ex, SPI, SD/MMC, or eMMC) now; but for Exynos platform, that is
+ * already handled by iROM so there's no need to setup again.
+ */
+
+ console_init();
+}
diff --git a/src/cpu/samsung/exynos5420/chip.h b/src/cpu/samsung/exynos5420/chip.h
new file mode 100644
index 0000000000..7f1aadce32
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/chip.h
@@ -0,0 +1,40 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_H
+#define CPU_SAMSUNG_EXYNOS5420_H
+
+struct cpu_samsung_exynos5420_config {
+ /* special magic numbers! */
+ int clkval_f;
+ int upper_margin;
+ int lower_margin;
+ int vsync;
+ int left_margin;
+ int right_margin;
+ int hsync;
+
+ int xres;
+ int yres;
+ int bpp;
+
+ u32 lcdbase;
+};
+
+#endif /* CPU_SAMSUNG_EXYNOS5420_H */
diff --git a/src/cpu/samsung/exynos5420/clk.h b/src/cpu/samsung/exynos5420/clk.h
new file mode 100644
index 0000000000..631b637e4c
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/clk.h
@@ -0,0 +1,624 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_CLK_H
+#define CPU_SAMSUNG_EXYNOS5420_CLK_H
+
+#include <stdint.h>
+
+enum periph_id;
+
+#define APLL 0
+#define MPLL 1
+#define EPLL 2
+#define HPLL 3
+#define VPLL 4
+#define BPLL 5
+
+enum pll_src_bit {
+ SRC_MPLL = 6,
+ SRC_EPLL,
+ SRC_VPLL,
+};
+
+/* *
+ * This structure is to store the src bit, div bit and prediv bit
+ * positions of the peripheral clocks of the src and div registers
+ */
+struct clk_bit_info {
+ s8 src_bit; /* offset in register to clock source field */
+ s8 n_src_bits; /* number of bits in 'src_bit' field */
+ s8 div_bit;
+ s8 prediv_bit;
+};
+
+unsigned long get_pll_clk(int pllreg);
+unsigned long get_arm_clk(void);
+unsigned long get_pwm_clk(void);
+unsigned long get_uart_clk(int dev_index);
+void set_mmc_clk(int dev_index, unsigned int div);
+
+/**
+ * get the clk frequency of the required peripherial
+ *
+ * @param peripherial Peripherial id
+ *
+ * @return frequency of the peripherial clk
+ */
+unsigned long clock_get_periph_rate(enum periph_id peripheral);
+
+#include "pinmux.h"
+
+
+#define MCT_ADDRESS 0x101c0000
+
+#define MCT_HZ 24000000
+
+/*
+ * Set mshci controller instances clock drivder
+ *
+ * @param enum periph_id instance of the mshci controller
+ *
+ * Return 0 if ok else -1
+ */
+int clock_set_mshci(enum periph_id peripheral);
+
+/*
+ * Sets the epll clockrate
+ *
+ * @param rate Required clock rate to the presacaler in Hz
+ *
+ * Return 0 if ok else -1
+ */
+int clock_epll_set_rate(unsigned long rate);
+
+/*
+ * selects the clk source for I2S MCLK
+ */
+void clock_select_i2s_clk_source(void);
+
+/*
+ * Set prescaler division based on input and output frequency
+ * for i2s audio clock
+ *
+ * @param src_frq Source frequency in Hz
+ * @param dst_frq Required MCLK frequency in Hz
+ *
+ * Return 0 if ok else -1
+ */
+int clock_set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq);
+
+struct exynos5_clock {
+ unsigned int apll_lock; /* base + 0 */
+ unsigned char res1[0xfc];
+ unsigned int apll_con0;
+ unsigned int apll_con1;
+ unsigned char res2[0xf8];
+ unsigned int src_cpu;
+ unsigned char res3[0x1fc];
+ unsigned int mux_stat_cpu;
+ unsigned char res4[0xfc];
+ unsigned int div_cpu0;
+ unsigned int div_cpu1;
+ unsigned char res5[0xf8];
+ unsigned int div_stat_cpu0;
+ unsigned int div_stat_cpu1;
+ unsigned char res6[0x1f8];
+ unsigned int gate_sclk_cpu;
+ unsigned char res7[0x1fc];
+ unsigned int clkout_cmu_cpu;
+ unsigned int clkout_cmu_cpu_div_stat;
+ unsigned char res8[0x5f8];
+
+ unsigned int armclk_stopctrl; /* base + 0x1000 */
+ unsigned int atclk_stopctrl;
+ unsigned char res9[0x8];
+ unsigned int parityfail_status;
+ unsigned int parityfail_clear;
+ unsigned char res10[0x8];
+ unsigned int pwr_ctrl;
+ unsigned int pwr_ctr2;
+ unsigned char res11[0xd8];
+ unsigned int apll_con0_l8;
+ unsigned int apll_con0_l7;
+ unsigned int apll_con0_l6;
+ unsigned int apll_con0_l5;
+ unsigned int apll_con0_l4;
+ unsigned int apll_con0_l3;
+ unsigned int apll_con0_l2;
+ unsigned int apll_con0_l1;
+ unsigned int iem_control;
+ unsigned char res12[0xdc];
+ unsigned int apll_con1_l8;
+ unsigned int apll_con1_l7;
+ unsigned int apll_con1_l6;
+ unsigned int apll_con1_l5;
+ unsigned int apll_con1_l4;
+ unsigned int apll_con1_l3;
+ unsigned int apll_con1_l2;
+ unsigned int apll_con1_l1;
+ unsigned char res13[0xe0];
+ unsigned int div_iem_l8;
+ unsigned int div_iem_l7;
+ unsigned int div_iem_l6;
+ unsigned int div_iem_l5;
+ unsigned int div_iem_l4;
+ unsigned int div_iem_l3;
+ unsigned int div_iem_l2;
+ unsigned int div_iem_l1;
+ unsigned char res14[0x2ce0];
+
+ unsigned int mpll_lock; /* base + 0x4000 */
+ unsigned char res15[0xfc];
+ unsigned int mpll_con0;
+ unsigned int mpll_con1;
+ unsigned char res16[0xf8];
+ unsigned int src_core0;
+ unsigned int src_core1;
+ unsigned char res17[0xf8];
+ unsigned int src_mask_core;
+ unsigned char res18[0x100];
+ unsigned int mux_stat_core1;
+ unsigned char res19[0xf8];
+ unsigned int div_core0;
+ unsigned int div_core1;
+ unsigned int div_sysrgt;
+ unsigned char res20[0xf4];
+ unsigned int div_stat_core0;
+ unsigned int div_stat_core1;
+ unsigned int div_stat_sysrgt;
+ unsigned char res21[0x2f4];
+ unsigned int gate_ip_core;
+ unsigned int gate_ip_sysrgt;
+ unsigned char res22[0xf8];
+ unsigned int clkout_cmu_core;
+ unsigned int clkout_cmu_core_div_stat;
+ unsigned char res23[0x5f8];
+
+ unsigned int dcgidx_map0; /* base + 0x5000 */
+ unsigned int dcgidx_map1;
+ unsigned int dcgidx_map2;
+ unsigned char res24[0x14];
+ unsigned int dcgperf_map0;
+ unsigned int dcgperf_map1;
+ unsigned char res25[0x18];
+ unsigned int dvcidx_map;
+ unsigned char res26[0x1c];
+ unsigned int freq_cpu;
+ unsigned int freq_dpm;
+ unsigned char res27[0x18];
+ unsigned int dvsemclk_en;
+ unsigned int maxperf;
+ unsigned char res28[0x3478];
+
+ unsigned int div_acp; /* base + 0x8500 */
+ unsigned char res29[0xfc];
+ unsigned int div_stat_acp;
+ unsigned char res30[0x1fc];
+ unsigned int gate_ip_acp;
+ unsigned char res31a[0xfc];
+ unsigned int div_syslft;
+ unsigned char res31b[0xc];
+ unsigned int div_stat_syslft;
+ unsigned char res31c[0xc];
+ unsigned int gate_bus_syslft;
+ unsigned char res31d[0xdc];
+ unsigned int clkout_cmu_acp;
+ unsigned int clkout_cmu_acp_div_stat;
+ unsigned char res32[0x38f8];
+
+ unsigned int div_isp0; /* base + 0xc300 */
+ unsigned int div_isp1;
+ unsigned int div_isp2;
+ unsigned char res33[0xf4];
+
+ unsigned int div_stat_isp0; /* base + 0xc400 */
+ unsigned int div_stat_isp1;
+ unsigned int div_stat_isp2;
+ unsigned char res34[0x3f4];
+
+ unsigned int gate_ip_isp0; /* base + 0xc800 */
+ unsigned int gate_ip_isp1;
+ unsigned char res35[0xf8];
+ unsigned int gate_sclk_isp;
+ unsigned char res36[0xc];
+ unsigned int mcuisp_pwr_ctrl;
+ unsigned char res37[0xec];
+ unsigned int clkout_cmu_isp;
+ unsigned int clkout_cmu_isp_div_stat;
+ unsigned char res38[0x3618];
+
+ unsigned int cpll_lock; /* base + 0x10020 */
+ unsigned char res39[0xc];
+ unsigned int epll_lock;
+ unsigned char res40[0xc];
+ unsigned int vpll_lock;
+ unsigned char res41a[0xc];
+ unsigned int gpll_lock;
+ unsigned char res41b[0xcc];
+ unsigned int cpll_con0;
+ unsigned int cpll_con1;
+ unsigned char res42[0x8];
+ unsigned int epll_con0;
+ unsigned int epll_con1;
+ unsigned int epll_con2;
+ unsigned char res43[0x4];
+ unsigned int vpll_con0;
+ unsigned int vpll_con1;
+ unsigned int vpll_con2;
+ unsigned char res44a[0x4];
+ unsigned int gpll_con0;
+ unsigned int gpll_con1;
+ unsigned char res44b[0xb8];
+ unsigned int src_top0;
+ unsigned int src_top1;
+ unsigned int src_top2;
+ unsigned int src_top3;
+ unsigned int src_gscl;
+ unsigned int src_disp0_0;
+ unsigned int src_disp0_1;
+ unsigned int src_disp1_0;
+ unsigned int src_disp1_1;
+ unsigned char res46[0xc];
+ unsigned int src_mau;
+ unsigned int src_fsys;
+ unsigned char res47[0x8];
+ unsigned int src_peric0;
+ unsigned int src_peric1;
+ unsigned char res48[0x18];
+ unsigned int sclk_src_isp;
+ unsigned char res49[0x9c];
+ unsigned int src_mask_top;
+ unsigned char res50[0xc];
+ unsigned int src_mask_gscl;
+ unsigned int src_mask_disp0_0;
+ unsigned int src_mask_disp0_1;
+ unsigned int src_mask_disp1_0;
+ unsigned int src_mask_disp1_1;
+ unsigned int src_mask_maudio;
+ unsigned char res52[0x8];
+ unsigned int src_mask_fsys;
+ unsigned char res53[0xc];
+ unsigned int src_mask_peric0;
+ unsigned int src_mask_peric1;
+ unsigned char res54[0x18];
+ unsigned int src_mask_isp;
+ unsigned char res55[0x9c];
+ unsigned int mux_stat_top0;
+ unsigned int mux_stat_top1;
+ unsigned int mux_stat_top2;
+ unsigned int mux_stat_top3;
+ unsigned char res56[0xf0];
+ unsigned int div_top0;
+ unsigned int div_top1;
+ unsigned char res57[0x8];
+ unsigned int div_gscl;
+ unsigned int div_disp0_0;
+ unsigned int div_disp0_1;
+ unsigned int div_disp1_0;
+ unsigned int div_disp1_1;
+ unsigned char res59[0x8];
+ unsigned int div_gen;
+ unsigned char res60[0x4];
+ unsigned int div_mau;
+ unsigned int div_fsys0;
+ unsigned int div_fsys1;
+ unsigned int div_fsys2;
+ unsigned int div_fsys3;
+ unsigned int div_peric0;
+ unsigned int div_peric1;
+ unsigned int div_peric2;
+ unsigned int div_peric3;
+ unsigned int div_peric4;
+ unsigned int div_peric5;
+ unsigned char res61[0x10];
+ unsigned int sclk_div_isp;
+ unsigned char res62[0xc];
+ unsigned int div2_ratio0;
+ unsigned int div2_ratio1;
+ unsigned char res63[0x8];
+ unsigned int div4_ratio;
+ unsigned char res64[0x6c];
+ unsigned int div_stat_top0;
+ unsigned int div_stat_top1;
+ unsigned char res65[0x8];
+ unsigned int div_stat_gscl;
+ unsigned int div_stat_disp0_0;
+ unsigned int div_stat_disp0_1;
+ unsigned int div_stat_disp1_0;
+ unsigned int div_stat_disp1_1;
+ unsigned char res67[0x8];
+ unsigned int div_stat_gen;
+ unsigned char res68[0x4];
+ unsigned int div_stat_maudio;
+ unsigned int div_stat_fsys0;
+ unsigned int div_stat_fsys1;
+ unsigned int div_stat_fsys2;
+ unsigned int div_stat_fsys3;
+ unsigned int div_stat_peric0;
+ unsigned int div_stat_peric1;
+ unsigned int div_stat_peric2;
+ unsigned int div_stat_peric3;
+ unsigned int div_stat_peric4;
+ unsigned int div_stat_peric5;
+ unsigned char res69[0x10];
+ unsigned int sclk_div_stat_isp;
+ unsigned char res70[0xc];
+ unsigned int div2_stat0;
+ unsigned int div2_stat1;
+ unsigned char res71[0x8];
+ unsigned int div4_stat;
+ unsigned char res72[0x180];
+ unsigned int gate_top_sclk_disp0;
+ unsigned int gate_top_sclk_disp1;
+ unsigned int gate_top_sclk_gen;
+ unsigned char res74[0xc];
+ unsigned int gate_top_sclk_mau;
+ unsigned int gate_top_sclk_fsys;
+ unsigned char res75[0xc];
+ unsigned int gate_top_sclk_peric;
+ unsigned char res76[0x1c];
+ unsigned int gate_top_sclk_isp;
+ unsigned char res77[0xac];
+ unsigned int gate_ip_gscl;
+ unsigned int gate_ip_disp0;
+ unsigned int gate_ip_disp1;
+ unsigned int gate_ip_mfc;
+ unsigned int gate_ip_g3d;
+ unsigned int gate_ip_gen;
+ unsigned char res79[0xc];
+ unsigned int gate_ip_fsys;
+ unsigned char res80[0x4];
+ unsigned int gate_ip_gps;
+ unsigned int gate_ip_peric;
+ unsigned char res81[0xc];
+ unsigned int gate_ip_peris;
+ unsigned char res82[0x1c];
+ unsigned int gate_block;
+ unsigned char res83[0x7c];
+ unsigned int clkout_cmu_top;
+ unsigned int clkout_cmu_top_div_stat;
+ unsigned char res84[0x37f8];
+
+ unsigned int src_lex; /* base + 0x14200 */
+ unsigned char res85[0x1fc];
+ unsigned int mux_stat_lex;
+ unsigned char res85b[0xfc];
+ unsigned int div_lex;
+ unsigned char res86[0xfc];
+ unsigned int div_stat_lex;
+ unsigned char res87[0x1fc];
+ unsigned int gate_ip_lex;
+ unsigned char res88[0x1fc];
+ unsigned int clkout_cmu_lex;
+ unsigned int clkout_cmu_lex_div_stat;
+ unsigned char res89[0x3af8];
+
+ unsigned int div_r0x; /* base + 0x18500 */
+ unsigned char res90[0xfc];
+ unsigned int div_stat_r0x;
+ unsigned char res91[0x1fc];
+ unsigned int gate_ip_r0x;
+ unsigned char res92[0x1fc];
+ unsigned int clkout_cmu_r0x;
+ unsigned int clkout_cmu_r0x_div_stat;
+ unsigned char res94[0x3af8];
+
+ unsigned int div_r1x; /* base + 0x1c500 */
+ unsigned char res95[0xfc];
+ unsigned int div_stat_r1x;
+ unsigned char res96[0x1fc];
+ unsigned int gate_ip_r1x;
+ unsigned char res97[0x1fc];
+ unsigned int clkout_cmu_r1x;
+ unsigned int clkout_cmu_r1x_div_stat;
+ unsigned char res98[0x3608];
+
+ unsigned int bpll_lock; /* base + 0x2000c */
+ unsigned char res99[0xfc];
+ unsigned int bpll_con0;
+ unsigned int bpll_con1;
+ unsigned char res100[0xe8];
+ unsigned int src_cdrex;
+ unsigned char res101[0x1fc];
+ unsigned int mux_stat_cdrex;
+ unsigned char res102[0xfc];
+ unsigned int div_cdrex;
+ unsigned int div_cdrex2;
+ unsigned char res103[0xf8];
+ unsigned int div_stat_cdrex;
+ unsigned char res104[0x2fc];
+ unsigned int gate_ip_cdrex;
+ unsigned char res105[0xc];
+ unsigned int c2c_monitor;
+ unsigned int dmc_pwr_ctrl;
+ unsigned char res106[0x4];
+ unsigned int drex2_pause;
+ unsigned char res107[0xe0];
+ unsigned int clkout_cmu_cdrex;
+ unsigned int clkout_cmu_cdrex_div_stat;
+ unsigned char res108[0x8];
+ unsigned int lpddr3phy_ctrl;
+ unsigned char res109a[0xc];
+ unsigned int lpddr3phy_con3;
+ unsigned int pll_div2_sel;
+ unsigned char res109b[0xf5e4];
+};
+
+struct exynos5_mct_regs {
+ uint32_t mct_cfg;
+ uint8_t reserved0[0xfc];
+ uint32_t g_cnt_l;
+ uint32_t g_cnt_u;
+ uint8_t reserved1[0x8];
+ uint32_t g_cnt_wstat;
+ uint8_t reserved2[0xec];
+ uint32_t g_comp0_l;
+ uint32_t g_comp0_u;
+ uint32_t g_comp0_addr_incr;
+ uint8_t reserved3[0x4];
+ uint32_t g_comp1_l;
+ uint32_t g_comp1_u;
+ uint32_t g_comp1_addr_incr;
+ uint8_t reserved4[0x4];
+ uint32_t g_comp2_l;
+ uint32_t g_comp2_u;
+ uint32_t g_comp2_addr_incr;
+ uint8_t reserved5[0x4];
+ uint32_t g_comp3_l;
+ uint32_t g_comp3_u;
+ uint32_t g_comp3_addr_incr;
+ uint8_t reserved6[0x4];
+ uint32_t g_tcon;
+ uint32_t g_int_cstat;
+ uint32_t g_int_enb;
+ uint32_t g_wstat;
+ uint8_t reserved7[0xb0];
+ uint32_t l0_tcntb;
+ uint32_t l0_tcnto;
+ uint32_t l0_icntb;
+ uint32_t l0_icnto;
+ uint32_t l0_frcntb;
+ uint32_t l0_frcnto;
+ uint8_t reserved8[0x8];
+ uint32_t l0_tcon;
+ uint8_t reserved9[0xc];
+ uint32_t l0_int_cstat;
+ uint32_t l0_int_enb;
+ uint8_t reserved10[0x8];
+ uint32_t l0_wstat;
+ uint8_t reserved11[0xbc];
+ uint32_t l1_tcntb;
+ uint32_t l1_tcnto;
+ uint32_t l1_icntb;
+ uint32_t l1_icnto;
+ uint32_t l1_frcntb;
+ uint32_t l1_frcnto;
+ uint8_t reserved12[0x8];
+ uint32_t l1_tcon;
+ uint8_t reserved13[0xc];
+ uint32_t l1_int_cstat;
+ uint32_t l1_int_enb;
+ uint8_t reserved14[0x8];
+ uint32_t l1_wstat;
+};
+
+#define EXYNOS5_EPLLCON0_LOCKED_SHIFT 29 /* EPLL Locked bit position*/
+#define EPLL_SRC_CLOCK 24000000 /*24 MHz Cristal Input */
+#define TIMEOUT_EPLL_LOCK 1000
+
+#define AUDIO_0_RATIO_MASK 0x0f
+#define AUDIO_1_RATIO_MASK 0x0f
+
+#define CLK_SRC_PERIC1 0x254
+#define AUDIO1_SEL_MASK 0xf
+#define CLK_SRC_AUDIOCDCLK1 0x0
+#define CLK_SRC_XXTI 0x1
+#define CLK_SRC_SCLK_EPLL 0x7
+
+/* CON0 bit-fields */
+#define EPLL_CON0_MDIV_MASK 0x1ff
+#define EPLL_CON0_PDIV_MASK 0x3f
+#define EPLL_CON0_SDIV_MASK 0x7
+#define EPLL_CON0_LOCKED_SHIFT 29
+#define EPLL_CON0_MDIV_SHIFT 16
+#define EPLL_CON0_PDIV_SHIFT 8
+#define EPLL_CON0_SDIV_SHIFT 0
+#define EPLL_CON0_LOCK_DET_EN_SHIFT 28
+#define EPLL_CON0_LOCK_DET_EN_MASK 1
+
+/* structure for epll configuration used in audio clock configuration */
+struct st_epll_con_val {
+ unsigned int freq_out; /* frequency out */
+ unsigned int en_lock_det; /* enable lock detect */
+ unsigned int m_div; /* m divider value */
+ unsigned int p_div; /* p divider value */
+ unsigned int s_div; /* s divider value */
+ unsigned int k_dsm; /* k value of delta signal modulator */
+};
+
+/**
+ * Low-level function to set the clock pre-ratio for a peripheral
+ *
+ * @param periph_id Peripheral ID of peripheral to change
+ * @param divisor New divisor for this peripheral's clock
+ */
+void clock_ll_set_pre_ratio(enum periph_id periph_id, unsigned divisor);
+
+/**
+ * Low-level function to set the clock ratio for a peripheral
+ *
+ * @param periph_id Peripheral ID of peripheral to change
+ * @param divisor New divisor for this peripheral's clock
+ */
+void clock_ll_set_ratio(enum periph_id periph_id, unsigned divisor);
+
+/**
+ * Low-level function that selects the best clock scalars for a given rate and
+ * sets up the given peripheral's clock accordingly.
+ *
+ * @param periph_id Peripheral ID of peripheral to change
+ * @param rate Desired clock rate in Hz
+ *
+ * @return zero on success, negative on error
+ */
+int clock_set_rate(enum periph_id periph_id, unsigned int rate);
+
+/* Clock gate unused IP */
+void clock_gate(void);
+
+void mct_start(void);
+uint64_t mct_raw_value(void);
+
+#include "dmc.h"
+
+/* These are the ratio's for configuring ARM clock */
+struct arm_clk_ratios {
+ unsigned int arm_freq_mhz; /* Frequency of ARM core in MHz */
+
+ unsigned int apll_mdiv;
+ unsigned int apll_pdiv;
+ unsigned int apll_sdiv;
+
+ unsigned int arm2_ratio;
+ unsigned int apll_ratio;
+ unsigned int pclk_dbg_ratio;
+ unsigned int atb_ratio;
+ unsigned int periph_ratio;
+ unsigned int acp_ratio;
+ unsigned int cpud_ratio;
+ unsigned int arm_ratio;
+};
+
+/**
+ * Get the clock ratios for CPU configuration
+ *
+ * @return pointer to the clock ratios that we should use
+ */
+struct arm_clk_ratios *get_arm_clk_ratios(void);
+
+/*
+ * Initialize clock for the device
+ */
+struct mem_timings;
+void system_clock_init(struct mem_timings *mem,
+ struct arm_clk_ratios *arm_clk_ratio);
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/clock.c b/src/cpu/samsung/exynos5420/clock.c
new file mode 100644
index 0000000000..e199e6bc37
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/clock.c
@@ -0,0 +1,691 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <arch/io.h>
+#include "timer.h"
+#include "clk.h"
+#include "cpu.h"
+
+/* input clock of PLL: SMDK5420 has 24MHz input clock */
+#define CONFIG_SYS_CLK_FREQ 24000000
+
+static struct arm_clk_ratios arm_clk_ratios[] = {
+ {
+ .arm_freq_mhz = 600,
+
+ .apll_mdiv = 0xc8,
+ .apll_pdiv = 0x4,
+ .apll_sdiv = 0x1,
+
+ .arm2_ratio = 0x0,
+ .apll_ratio = 0x1,
+ .pclk_dbg_ratio = 0x1,
+ .atb_ratio = 0x2,
+ .periph_ratio = 0x7,
+ .acp_ratio = 0x7,
+ .cpud_ratio = 0x1,
+ .arm_ratio = 0x0,
+ }, {
+ .arm_freq_mhz = 800,
+
+ .apll_mdiv = 0x64,
+ .apll_pdiv = 0x3,
+ .apll_sdiv = 0x0,
+
+ .arm2_ratio = 0x0,
+ .apll_ratio = 0x1,
+ .pclk_dbg_ratio = 0x1,
+ .atb_ratio = 0x3,
+ .periph_ratio = 0x7,
+ .acp_ratio = 0x7,
+ .cpud_ratio = 0x2,
+ .arm_ratio = 0x0,
+ }, {
+ .arm_freq_mhz = 1000,
+
+ .apll_mdiv = 0x7d,
+ .apll_pdiv = 0x3,
+ .apll_sdiv = 0x0,
+
+ .arm2_ratio = 0x0,
+ .apll_ratio = 0x1,
+ .pclk_dbg_ratio = 0x1,
+ .atb_ratio = 0x4,
+ .periph_ratio = 0x7,
+ .acp_ratio = 0x7,
+ .cpud_ratio = 0x2,
+ .arm_ratio = 0x0,
+ }, {
+ .arm_freq_mhz = 1200,
+
+ .apll_mdiv = 0x96,
+ .apll_pdiv = 0x3,
+ .apll_sdiv = 0x0,
+
+ .arm2_ratio = 0x0,
+ .apll_ratio = 0x3,
+ .pclk_dbg_ratio = 0x1,
+ .atb_ratio = 0x5,
+ .periph_ratio = 0x7,
+ .acp_ratio = 0x7,
+ .cpud_ratio = 0x3,
+ .arm_ratio = 0x0,
+ }, {
+ .arm_freq_mhz = 1400,
+
+ .apll_mdiv = 0xaf,
+ .apll_pdiv = 0x3,
+ .apll_sdiv = 0x0,
+
+ .arm2_ratio = 0x0,
+ .apll_ratio = 0x3,
+ .pclk_dbg_ratio = 0x1,
+ .atb_ratio = 0x6,
+ .periph_ratio = 0x7,
+ .acp_ratio = 0x7,
+ .cpud_ratio = 0x3,
+ .arm_ratio = 0x0,
+ }, {
+ .arm_freq_mhz = 1700,
+
+ .apll_mdiv = 0x1a9,
+ .apll_pdiv = 0x6,
+ .apll_sdiv = 0x0,
+
+ .arm2_ratio = 0x0,
+ .apll_ratio = 0x3,
+ .pclk_dbg_ratio = 0x1,
+ .atb_ratio = 0x6,
+ .periph_ratio = 0x7,
+ .acp_ratio = 0x7,
+ .cpud_ratio = 0x3,
+ .arm_ratio = 0x0,
+ }
+};
+
+/* src_bit div_bit prediv_bit */
+static struct clk_bit_info clk_bit_info[PERIPH_ID_COUNT] = {
+ {0, 4, 0, -1},
+ {4, 4, 4, -1},
+ {8, 4, 8, -1},
+ {12, 4, 12, -1},
+ {0, 4, 0, 8},
+ {4, 4, 16, 24},
+ {8, 4, 0, 8},
+ {12, 4, 16, 24},
+ {-1, -1, -1, -1},
+ {16, 4, 0, 8}, /* PERIPH_ID_SROMC */
+ {20, 4, 16, 24},
+ {24, 4, 0, 8},
+ {0, 4, 0, 4},
+ {4, 4, 12, 16},
+ {-1, 4, -1, -1},
+ {-1, 4, -1, -1},
+ {-1, 4, 24, 0},
+ {-1, 4, 24, 0},
+ {-1, 4, 24, 0},
+ {-1, 4, 24, 0},
+ {-1, 4, 24, 0},
+ {-1, 4, 24, 0},
+ {-1, 4, 24, 0},
+ {-1, 4, 24, 0},
+ {24, 4, 0, -1},
+ {24, 4, 0, -1},
+ {24, 4, 0, -1},
+ {24, 4, 0, -1},
+ {24, 4, 0, -1},
+ {-1, -1, -1, -1},
+ {-1, -1, -1, -1},
+ {-1, -1, -1, -1}, /* PERIPH_ID_I2S1 */
+ {24, 1, 20, -1}, /* PERIPH_ID_SATA */
+};
+
+/* Epll Clock division values to achive different frequency output */
+static struct st_epll_con_val epll_div[] = {
+ { 192000000, 0, 48, 3, 1, 0 },
+ { 180000000, 0, 45, 3, 1, 0 },
+ { 73728000, 1, 73, 3, 3, 47710 },
+ { 67737600, 1, 90, 4, 3, 20762 },
+ { 49152000, 0, 49, 3, 3, 9961 },
+ { 45158400, 0, 45, 3, 3, 10381 },
+ { 180633600, 0, 45, 3, 1, 10381 }
+};
+
+/* exynos5: return pll clock frequency */
+unsigned long get_pll_clk(int pllreg)
+{
+ struct exynos5_clock *clk =
+ samsung_get_base_clock();
+ unsigned long r, m, p, s, k = 0, mask, fout;
+ unsigned int freq;
+
+ switch (pllreg) {
+ case APLL:
+ r = readl(&clk->apll_con0);
+ break;
+ case BPLL:
+ r = readl(&clk->bpll_con0);
+ break;
+ case MPLL:
+ r = readl(&clk->mpll_con0);
+ break;
+ case EPLL:
+ r = readl(&clk->epll_con0);
+ k = readl(&clk->epll_con1);
+ break;
+ case VPLL:
+ r = readl(&clk->vpll_con0);
+ k = readl(&clk->vpll_con1);
+ break;
+ default:
+ printk(BIOS_DEBUG, "Unsupported PLL (%d)\n", pllreg);
+ return 0;
+ }
+
+ /*
+ * APLL_CON: MIDV [25:16]
+ * MPLL_CON: MIDV [25:16]
+ * EPLL_CON: MIDV [24:16]
+ * VPLL_CON: MIDV [24:16]
+ */
+ if (pllreg == APLL || pllreg == BPLL || pllreg == MPLL)
+ mask = 0x3ff;
+ else
+ mask = 0x1ff;
+
+ m = (r >> 16) & mask;
+
+ /* PDIV [13:8] */
+ p = (r >> 8) & 0x3f;
+ /* SDIV [2:0] */
+ s = r & 0x7;
+
+ freq = CONFIG_SYS_CLK_FREQ;
+
+ if (pllreg == EPLL) {
+ k = k & 0xffff;
+ /* FOUT = (MDIV + K / 65536) * FIN / (PDIV * 2^SDIV) */
+ fout = (m + k / 65536) * (freq / (p * (1 << s)));
+ } else if (pllreg == VPLL) {
+ k = k & 0xfff;
+ /* FOUT = (MDIV + K / 1024) * FIN / (PDIV * 2^SDIV) */
+ fout = (m + k / 1024) * (freq / (p * (1 << s)));
+ } else {
+ /* FOUT = MDIV * FIN / (PDIV * 2^SDIV) */
+ fout = m * (freq / (p * (1 << s)));
+ }
+
+ return fout;
+}
+
+unsigned long clock_get_periph_rate(enum periph_id peripheral)
+{
+ struct exynos5_clock *clk =
+ samsung_get_base_clock();
+ struct clk_bit_info *bit_info = &clk_bit_info[peripheral];
+ unsigned long sclk, sub_clk;
+ unsigned int src, div, sub_div;
+
+ switch (peripheral) {
+ case PERIPH_ID_UART0:
+ case PERIPH_ID_UART1:
+ case PERIPH_ID_UART2:
+ case PERIPH_ID_UART3:
+ src = readl(&clk->src_peric0);
+ div = readl(&clk->div_peric0);
+ break;
+ case PERIPH_ID_PWM0:
+ case PERIPH_ID_PWM1:
+ case PERIPH_ID_PWM2:
+ case PERIPH_ID_PWM3:
+ case PERIPH_ID_PWM4:
+ src = readl(&clk->src_peric0);
+ div = readl(&clk->div_peric3);
+ break;
+ case PERIPH_ID_SPI0:
+ case PERIPH_ID_SPI1:
+ src = readl(&clk->src_peric1);
+ div = readl(&clk->div_peric1);
+ break;
+ case PERIPH_ID_SPI2:
+ src = readl(&clk->src_peric1);
+ div = readl(&clk->div_peric2);
+ break;
+ case PERIPH_ID_SPI3:
+ case PERIPH_ID_SPI4:
+ src = readl(&clk->sclk_src_isp);
+ div = readl(&clk->sclk_div_isp);
+ break;
+ case PERIPH_ID_SATA:
+ src = readl(&clk->src_fsys);
+ div = readl(&clk->div_fsys0);
+ break;
+ case PERIPH_ID_SDMMC0:
+ case PERIPH_ID_SDMMC1:
+ case PERIPH_ID_SDMMC2:
+ case PERIPH_ID_SDMMC3:
+ src = readl(&clk->src_fsys);
+ div = readl(&clk->div_fsys1);
+ break;
+ case PERIPH_ID_I2C0:
+ case PERIPH_ID_I2C1:
+ case PERIPH_ID_I2C2:
+ case PERIPH_ID_I2C3:
+ case PERIPH_ID_I2C4:
+ case PERIPH_ID_I2C5:
+ case PERIPH_ID_I2C6:
+ case PERIPH_ID_I2C7:
+ sclk = get_pll_clk(MPLL);
+ sub_div = ((readl(&clk->div_top1) >> bit_info->div_bit) & 0x7) + 1;
+ div = ((readl(&clk->div_top0) >> bit_info->prediv_bit) & 0x7) + 1;
+ return (sclk / sub_div) / div;
+ default:
+ printk(BIOS_DEBUG, "%s: invalid peripheral %d", __func__, peripheral);
+ return -1;
+ };
+
+ src = (src >> bit_info->src_bit) & ((1 << bit_info->n_src_bits) - 1);
+ if (peripheral == PERIPH_ID_SATA) {
+ if (src)
+ sclk = get_pll_clk(BPLL);
+ else
+ sclk = get_pll_clk(MPLL);
+ } else {
+ if (src == SRC_MPLL)
+ sclk = get_pll_clk(MPLL);
+ else if (src == SRC_EPLL)
+ sclk = get_pll_clk(EPLL);
+ else if (src == SRC_VPLL)
+ sclk = get_pll_clk(VPLL);
+ else
+ return 0;
+ }
+
+ sub_div = (div >> bit_info->div_bit) & 0xf;
+ sub_clk = sclk / (sub_div + 1);
+
+ if (peripheral == PERIPH_ID_SDMMC0 || peripheral == PERIPH_ID_SDMMC2) {
+ div = (div >> bit_info->prediv_bit) & 0xff;
+ return sub_clk / (div + 1);
+ }
+
+ return sub_clk;
+}
+
+/* exynos5: return ARM clock frequency */
+unsigned long get_arm_clk(void)
+{
+ struct exynos5_clock *clk =
+ samsung_get_base_clock();
+ unsigned long div;
+ unsigned long armclk;
+ unsigned int arm_ratio;
+ unsigned int arm2_ratio;
+
+ div = readl(&clk->div_cpu0);
+
+ /* ARM_RATIO: [2:0], ARM2_RATIO: [30:28] */
+ arm_ratio = (div >> 0) & 0x7;
+ arm2_ratio = (div >> 28) & 0x7;
+
+ armclk = get_pll_clk(APLL) / (arm_ratio + 1);
+ armclk /= (arm2_ratio + 1);
+
+ return armclk;
+}
+
+struct arm_clk_ratios *get_arm_clk_ratios(void)
+{
+ struct arm_clk_ratios *arm_ratio;
+ unsigned long arm_freq = 1700; /* FIXME: use get_arm_clk() */
+ int i;
+
+ for (i = 0, arm_ratio = arm_clk_ratios; i < ARRAY_SIZE(arm_clk_ratios);
+ i++, arm_ratio++) {
+ if (arm_ratio->arm_freq_mhz == arm_freq)
+ return arm_ratio;
+ }
+
+ return NULL;
+}
+
+/* exynos5: set the mmc clock */
+void set_mmc_clk(int dev_index, unsigned int div)
+{
+ struct exynos5_clock *clk =
+ samsung_get_base_clock();
+ unsigned int *addr;
+ unsigned int val;
+
+ /*
+ * CLK_DIV_FSYS1
+ * MMC0_PRE_RATIO [15:8], MMC1_PRE_RATIO [31:24]
+ * CLK_DIV_FSYS2
+ * MMC2_PRE_RATIO [15:8], MMC3_PRE_RATIO [31:24]
+ */
+ if (dev_index < 2) {
+ addr = &clk->div_fsys1;
+ } else {
+ addr = &clk->div_fsys2;
+ dev_index -= 2;
+ }
+
+ val = readl(addr);
+ val &= ~(0xff << ((dev_index << 4) + 8));
+ val |= (div & 0xff) << ((dev_index << 4) + 8);
+ writel(val, addr);
+}
+
+void clock_ll_set_pre_ratio(enum periph_id periph_id, unsigned divisor)
+{
+ struct exynos5_clock *clk =
+ samsung_get_base_clock();
+ unsigned shift;
+ unsigned mask = 0xff;
+ u32 *reg;
+
+ /*
+ * For now we only handle a very small subset of peipherals here.
+ * Others will need to (and do) mangle the clock registers
+ * themselves, At some point it is hoped that this function can work
+ * from a table or calculated register offset / mask. For now this
+ * is at least better than spreading clock control code around
+ * U-Boot.
+ */
+ switch (periph_id) {
+ case PERIPH_ID_SPI0:
+ reg = &clk->div_peric1;
+ shift = 8;
+ break;
+ case PERIPH_ID_SPI1:
+ reg = &clk->div_peric1;
+ shift = 24;
+ break;
+ case PERIPH_ID_SPI2:
+ reg = &clk->div_peric2;
+ shift = 8;
+ break;
+ case PERIPH_ID_SPI3:
+ reg = &clk->sclk_div_isp;
+ shift = 4;
+ break;
+ case PERIPH_ID_SPI4:
+ reg = &clk->sclk_div_isp;
+ shift = 16;
+ break;
+ default:
+ printk(BIOS_DEBUG, "%s: Unsupported peripheral ID %d\n", __func__,
+ periph_id);
+ return;
+ }
+ clrsetbits_le32(reg, mask << shift, (divisor & mask) << shift);
+}
+
+void clock_ll_set_ratio(enum periph_id periph_id, unsigned divisor)
+{
+ struct exynos5_clock *clk =
+ samsung_get_base_clock();
+ unsigned shift;
+ unsigned mask = 0xff;
+ u32 *reg;
+
+ switch (periph_id) {
+ case PERIPH_ID_SPI0:
+ reg = &clk->div_peric1;
+ shift = 0;
+ break;
+ case PERIPH_ID_SPI1:
+ reg = &clk->div_peric1;
+ shift = 16;
+ break;
+ case PERIPH_ID_SPI2:
+ reg = &clk->div_peric2;
+ shift = 0;
+ break;
+ case PERIPH_ID_SPI3:
+ reg = &clk->sclk_div_isp;
+ shift = 0;
+ break;
+ case PERIPH_ID_SPI4:
+ reg = &clk->sclk_div_isp;
+ shift = 12;
+ break;
+ default:
+ printk(BIOS_DEBUG, "%s: Unsupported peripheral ID %d\n", __func__,
+ periph_id);
+ return;
+ }
+ clrsetbits_le32(reg, mask << shift, (divisor & mask) << shift);
+}
+
+/**
+ * Linearly searches for the most accurate main and fine stage clock scalars
+ * (divisors) for a specified target frequency and scalar bit sizes by checking
+ * all multiples of main_scalar_bits values. Will always return scalars up to or
+ * slower than target.
+ *
+ * @param main_scalar_bits Number of main scalar bits, must be > 0 and < 32
+ * @param fine_scalar_bits Number of fine scalar bits, must be > 0 and < 32
+ * @param input_freq Clock frequency to be scaled in Hz
+ * @param target_freq Desired clock frequency in Hz
+ * @param best_fine_scalar Pointer to store the fine stage divisor
+ *
+ * @return best_main_scalar Main scalar for desired frequency or -1 if none
+ * found
+ */
+static int clock_calc_best_scalar(unsigned int main_scaler_bits,
+ unsigned int fine_scalar_bits, unsigned int input_rate,
+ unsigned int target_rate, unsigned int *best_fine_scalar)
+{
+ int i;
+ int best_main_scalar = -1;
+ unsigned int best_error = target_rate;
+ const unsigned int cap = (1 << fine_scalar_bits) - 1;
+ const unsigned int loops = 1 << main_scaler_bits;
+
+ printk(BIOS_DEBUG, "Input Rate is %u, Target is %u, Cap is %u\n", input_rate,
+ target_rate, cap);
+
+ ASSERT(best_fine_scalar != NULL);
+ ASSERT(main_scaler_bits <= fine_scalar_bits);
+
+ *best_fine_scalar = 1;
+
+ if (input_rate == 0 || target_rate == 0)
+ return -1;
+
+ if (target_rate >= input_rate)
+ return 1;
+
+ for (i = 1; i <= loops; i++) {
+ const unsigned int effective_div = MAX(MIN(input_rate / i /
+ target_rate, cap), 1);
+ const unsigned int effective_rate = input_rate / i /
+ effective_div;
+ const int error = target_rate - effective_rate;
+
+ printk(BIOS_DEBUG, "%d|effdiv:%u, effrate:%u, error:%d\n", i, effective_div,
+ effective_rate, error);
+
+ if (error >= 0 && error <= best_error) {
+ best_error = error;
+ best_main_scalar = i;
+ *best_fine_scalar = effective_div;
+ }
+ }
+
+ return best_main_scalar;
+}
+
+int clock_set_rate(enum periph_id periph_id, unsigned int rate)
+{
+ int main;
+ unsigned int fine;
+
+ switch (periph_id) {
+ case PERIPH_ID_SPI0:
+ case PERIPH_ID_SPI1:
+ case PERIPH_ID_SPI2:
+ case PERIPH_ID_SPI3:
+ case PERIPH_ID_SPI4:
+ main = clock_calc_best_scalar(4, 8, 400000000, rate, &fine);
+ if (main < 0) {
+ printk(BIOS_DEBUG, "%s: Cannot set clock rate for periph %d",
+ __func__, periph_id);
+ return -1;
+ }
+ clock_ll_set_ratio(periph_id, main - 1);
+ clock_ll_set_pre_ratio(periph_id, fine - 1);
+ break;
+ default:
+ printk(BIOS_DEBUG, "%s: Unsupported peripheral ID %d\n", __func__,
+ periph_id);
+ return -1;
+ }
+
+ return 0;
+}
+
+int clock_set_mshci(enum periph_id peripheral)
+{
+ struct exynos5_clock *clk =
+ samsung_get_base_clock();
+ u32 *addr;
+ unsigned int clock;
+ unsigned int tmp;
+ unsigned int i;
+
+ /* get mpll clock */
+ clock = get_pll_clk(MPLL) / 1000000;
+
+ /*
+ * CLK_DIV_FSYS1
+ * MMC0_PRE_RATIO [15:8], MMC0_RATIO [3:0]
+ * CLK_DIV_FSYS2
+ * MMC2_PRE_RATIO [15:8], MMC2_RATIO [3:0]
+ */
+ switch (peripheral) {
+ case PERIPH_ID_SDMMC0:
+ addr = &clk->div_fsys1;
+ break;
+ case PERIPH_ID_SDMMC2:
+ addr = &clk->div_fsys2;
+ break;
+ default:
+ printk(BIOS_DEBUG, "invalid peripheral\n");
+ return -1;
+ }
+ tmp = readl(addr) & ~0xff0f;
+ for (i = 0; i <= 0xf; i++) {
+ if ((clock / (i + 1)) <= 400) {
+ writel(tmp | i << 0, addr);
+ break;
+ }
+ }
+ return 0;
+}
+
+int clock_epll_set_rate(unsigned long rate)
+{
+ unsigned int epll_con, epll_con_k;
+ unsigned int i;
+ unsigned int lockcnt;
+ unsigned int start;
+ struct exynos5_clock *clk =
+ samsung_get_base_clock();
+
+ epll_con = readl(&clk->epll_con0);
+ epll_con &= ~((EPLL_CON0_LOCK_DET_EN_MASK <<
+ EPLL_CON0_LOCK_DET_EN_SHIFT) |
+ EPLL_CON0_MDIV_MASK << EPLL_CON0_MDIV_SHIFT |
+ EPLL_CON0_PDIV_MASK << EPLL_CON0_PDIV_SHIFT |
+ EPLL_CON0_SDIV_MASK << EPLL_CON0_SDIV_SHIFT);
+
+ for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
+ if (epll_div[i].freq_out == rate)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(epll_div))
+ return -1;
+
+ epll_con_k = epll_div[i].k_dsm << 0;
+ epll_con |= epll_div[i].en_lock_det << EPLL_CON0_LOCK_DET_EN_SHIFT;
+ epll_con |= epll_div[i].m_div << EPLL_CON0_MDIV_SHIFT;
+ epll_con |= epll_div[i].p_div << EPLL_CON0_PDIV_SHIFT;
+ epll_con |= epll_div[i].s_div << EPLL_CON0_SDIV_SHIFT;
+
+ /*
+ * Required period ( in cycles) to genarate a stable clock output.
+ * The maximum clock time can be up to 3000 * PDIV cycles of PLLs
+ * frequency input (as per spec)
+ */
+ lockcnt = 3000 * epll_div[i].p_div;
+
+ writel(lockcnt, &clk->epll_lock);
+ writel(epll_con, &clk->epll_con0);
+ writel(epll_con_k, &clk->epll_con1);
+
+ start = get_timer(0);
+
+ while (!(readl(&clk->epll_con0) &
+ (0x1 << EXYNOS5_EPLLCON0_LOCKED_SHIFT))) {
+ if (get_timer(start) > TIMEOUT_EPLL_LOCK) {
+ printk(BIOS_DEBUG, "%s: Timeout waiting for EPLL lock\n", __func__);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+void clock_select_i2s_clk_source(void)
+{
+ struct exynos5_clock *clk =
+ samsung_get_base_clock();
+
+ clrsetbits_le32(&clk->src_peric1, AUDIO1_SEL_MASK,
+ (CLK_SRC_SCLK_EPLL));
+}
+
+int clock_set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq)
+{
+ struct exynos5_clock *clk =
+ samsung_get_base_clock();
+ unsigned int div ;
+
+ if ((dst_frq == 0) || (src_frq == 0)) {
+ printk(BIOS_DEBUG, "%s: Invalid requency input for prescaler\n", __func__);
+ printk(BIOS_DEBUG, "src frq = %d des frq = %d ", src_frq, dst_frq);
+ return -1;
+ }
+
+ div = (src_frq / dst_frq);
+ if (div > AUDIO_1_RATIO_MASK) {
+ printk(BIOS_DEBUG, "%s: Frequency ratio is out of range\n", __func__);
+ printk(BIOS_DEBUG, "src frq = %d des frq = %d ", src_frq, dst_frq);
+ return -1;
+ }
+ clrsetbits_le32(&clk->div_peric4, AUDIO_1_RATIO_MASK,
+ (div & AUDIO_1_RATIO_MASK));
+ return 0;
+}
diff --git a/src/cpu/samsung/exynos5420/clock_init.c b/src/cpu/samsung/exynos5420/clock_init.c
new file mode 100644
index 0000000000..2986cabc24
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/clock_init.c
@@ -0,0 +1,445 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Clock setup for SMDK5420 board based on EXYNOS5 */
+
+#include <console/console.h>
+#include <delay.h>
+#include "clk.h"
+#include "cpu.h"
+#include "dp.h"
+#include "setup.h"
+
+void system_clock_init(struct mem_timings *mem,
+ struct arm_clk_ratios *arm_clk_ratio)
+{
+ struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE;
+ struct exynos5_mct_regs *mct_regs =
+ (struct exynos5_mct_regs *)EXYNOS5_MULTI_CORE_TIMER_BASE;
+ u32 val, tmp;
+
+ /* Turn on the MCT as early as possible. */
+ mct_regs->g_tcon |= (1 << 8);
+
+ clrbits_le32(&clk->src_cpu, MUX_APLL_SEL_MASK);
+ do {
+ val = readl(&clk->mux_stat_cpu);
+ } while ((val | MUX_APLL_SEL_MASK) != val);
+
+ clrbits_le32(&clk->src_core1, MUX_MPLL_SEL_MASK);
+ do {
+ val = readl(&clk->mux_stat_core1);
+ } while ((val | MUX_MPLL_SEL_MASK) != val);
+
+ clrbits_le32(&clk->src_top2, MUX_CPLL_SEL_MASK);
+ clrbits_le32(&clk->src_top2, MUX_EPLL_SEL_MASK);
+ clrbits_le32(&clk->src_top2, MUX_VPLL_SEL_MASK);
+ clrbits_le32(&clk->src_top2, MUX_GPLL_SEL_MASK);
+ tmp = MUX_CPLL_SEL_MASK | MUX_EPLL_SEL_MASK | MUX_VPLL_SEL_MASK
+ | MUX_GPLL_SEL_MASK;
+ do {
+ val = readl(&clk->mux_stat_top2);
+ } while ((val | tmp) != val);
+
+ clrbits_le32(&clk->src_cdrex, MUX_BPLL_SEL_MASK);
+ do {
+ val = readl(&clk->mux_stat_cdrex);
+ } while ((val | MUX_BPLL_SEL_MASK) != val);
+
+ /* PLL locktime */
+ writel(APLL_LOCK_VAL, &clk->apll_lock);
+
+ writel(MPLL_LOCK_VAL, &clk->mpll_lock);
+
+ writel(BPLL_LOCK_VAL, &clk->bpll_lock);
+
+ writel(CPLL_LOCK_VAL, &clk->cpll_lock);
+
+ writel(GPLL_LOCK_VAL, &clk->gpll_lock);
+
+ writel(EPLL_LOCK_VAL, &clk->epll_lock);
+
+ writel(VPLL_LOCK_VAL, &clk->vpll_lock);
+
+ writel(CLK_REG_DISABLE, &clk->pll_div2_sel);
+
+ writel(MUX_HPM_SEL_MASK, &clk->src_cpu);
+ do {
+ val = readl(&clk->mux_stat_cpu);
+ } while ((val | HPM_SEL_SCLK_MPLL) != val);
+
+ val = arm_clk_ratio->arm2_ratio << 28
+ | arm_clk_ratio->apll_ratio << 24
+ | arm_clk_ratio->pclk_dbg_ratio << 20
+ | arm_clk_ratio->atb_ratio << 16
+ | arm_clk_ratio->periph_ratio << 12
+ | arm_clk_ratio->acp_ratio << 8
+ | arm_clk_ratio->cpud_ratio << 4
+ | arm_clk_ratio->arm_ratio;
+ writel(val, &clk->div_cpu0);
+ do {
+ val = readl(&clk->div_stat_cpu0);
+ } while (0 != val);
+
+ writel(CLK_DIV_CPU1_VAL, &clk->div_cpu1);
+ do {
+ val = readl(&clk->div_stat_cpu1);
+ } while (0 != val);
+
+ /* Set APLL */
+ writel(APLL_CON1_VAL, &clk->apll_con1);
+ val = set_pll(arm_clk_ratio->apll_mdiv, arm_clk_ratio->apll_pdiv,
+ arm_clk_ratio->apll_sdiv);
+ writel(val, &clk->apll_con0);
+ while ((readl(&clk->apll_con0) & APLL_CON0_LOCKED) == 0)
+ ;
+
+ /* Set MPLL */
+ writel(MPLL_CON1_VAL, &clk->mpll_con1);
+ val = set_pll(mem->mpll_mdiv, mem->mpll_pdiv, mem->mpll_sdiv);
+ writel(val, &clk->mpll_con0);
+ while ((readl(&clk->mpll_con0) & MPLL_CON0_LOCKED) == 0)
+ ;
+
+ /*
+ * Configure MUX_MPLL_FOUT to choose the direct clock source
+ * path and avoid the fixed DIV/2 block to save power
+ */
+ setbits_le32(&clk->pll_div2_sel, MUX_MPLL_FOUT_SEL);
+
+ /* Set BPLL */
+ if (mem->use_bpll) {
+ writel(BPLL_CON1_VAL, &clk->bpll_con1);
+ val = set_pll(mem->bpll_mdiv, mem->bpll_pdiv, mem->bpll_sdiv);
+ writel(val, &clk->bpll_con0);
+ while ((readl(&clk->bpll_con0) & BPLL_CON0_LOCKED) == 0)
+ ;
+
+ setbits_le32(&clk->pll_div2_sel, MUX_BPLL_FOUT_SEL);
+ }
+
+ /* Set CPLL */
+ writel(CPLL_CON1_VAL, &clk->cpll_con1);
+ val = set_pll(mem->cpll_mdiv, mem->cpll_pdiv, mem->cpll_sdiv);
+ writel(val, &clk->cpll_con0);
+ while ((readl(&clk->cpll_con0) & CPLL_CON0_LOCKED) == 0)
+ ;
+
+ /* Set GPLL */
+ writel(GPLL_CON1_VAL, &clk->gpll_con1);
+ val = set_pll(mem->gpll_mdiv, mem->gpll_pdiv, mem->gpll_sdiv);
+ writel(val, &clk->gpll_con0);
+ while ((readl(&clk->gpll_con0) & GPLL_CON0_LOCKED) == 0)
+ ;
+
+ /* Set EPLL */
+ writel(EPLL_CON2_VAL, &clk->epll_con2);
+ writel(EPLL_CON1_VAL, &clk->epll_con1);
+ val = set_pll(mem->epll_mdiv, mem->epll_pdiv, mem->epll_sdiv);
+ writel(val, &clk->epll_con0);
+ while ((readl(&clk->epll_con0) & EPLL_CON0_LOCKED) == 0)
+ ;
+
+ /* Set VPLL */
+ writel(VPLL_CON2_VAL, &clk->vpll_con2);
+ writel(VPLL_CON1_VAL, &clk->vpll_con1);
+ val = set_pll(mem->vpll_mdiv, mem->vpll_pdiv, mem->vpll_sdiv);
+ writel(val, &clk->vpll_con0);
+ while ((readl(&clk->vpll_con0) & VPLL_CON0_LOCKED) == 0)
+ ;
+
+ writel(CLK_SRC_CORE0_VAL, &clk->src_core0);
+ writel(CLK_DIV_CORE0_VAL, &clk->div_core0);
+ while (readl(&clk->div_stat_core0) != 0)
+ ;
+
+ writel(CLK_DIV_CORE1_VAL, &clk->div_core1);
+ while (readl(&clk->div_stat_core1) != 0)
+ ;
+
+ writel(CLK_DIV_SYSRGT_VAL, &clk->div_sysrgt);
+ while (readl(&clk->div_stat_sysrgt) != 0)
+ ;
+
+ writel(CLK_DIV_ACP_VAL, &clk->div_acp);
+ while (readl(&clk->div_stat_acp) != 0)
+ ;
+
+ writel(CLK_DIV_SYSLFT_VAL, &clk->div_syslft);
+ while (readl(&clk->div_stat_syslft) != 0)
+ ;
+
+ writel(CLK_SRC_TOP0_VAL, &clk->src_top0);
+ writel(CLK_SRC_TOP1_VAL, &clk->src_top1);
+ writel(TOP2_VAL, &clk->src_top2);
+ writel(CLK_SRC_TOP3_VAL, &clk->src_top3);
+
+ writel(CLK_DIV_TOP0_VAL, &clk->div_top0);
+ while (readl(&clk->div_stat_top0))
+ ;
+
+ writel(CLK_DIV_TOP1_VAL, &clk->div_top1);
+ while (readl(&clk->div_stat_top1))
+ ;
+
+ writel(CLK_SRC_LEX_VAL, &clk->src_lex);
+ while (1) {
+ val = readl(&clk->mux_stat_lex);
+ if (val == (val | 1))
+ break;
+ }
+
+ writel(CLK_DIV_LEX_VAL, &clk->div_lex);
+ while (readl(&clk->div_stat_lex))
+ ;
+
+ writel(CLK_DIV_R0X_VAL, &clk->div_r0x);
+ while (readl(&clk->div_stat_r0x))
+ ;
+
+ writel(CLK_DIV_R0X_VAL, &clk->div_r0x);
+ while (readl(&clk->div_stat_r0x))
+ ;
+
+ writel(CLK_DIV_R1X_VAL, &clk->div_r1x);
+ while (readl(&clk->div_stat_r1x))
+ ;
+
+ if (mem->use_bpll) {
+ writel(MUX_BPLL_SEL_MASK | MUX_MCLK_CDREX_SEL |
+ MUX_MCLK_DPHY_SEL, &clk->src_cdrex);
+ } else {
+ writel(CLK_REG_DISABLE, &clk->src_cdrex);
+ }
+
+ writel(CLK_DIV_CDREX_VAL, &clk->div_cdrex);
+ while (readl(&clk->div_stat_cdrex))
+ ;
+
+ val = readl(&clk->src_cpu);
+ val |= CLK_SRC_CPU_VAL;
+ writel(val, &clk->src_cpu);
+
+ val = readl(&clk->src_top2);
+ val |= CLK_SRC_TOP2_VAL;
+ writel(val, &clk->src_top2);
+
+ val = readl(&clk->src_core1);
+ val |= CLK_SRC_CORE1_VAL;
+ writel(val, &clk->src_core1);
+
+ writel(CLK_SRC_FSYS0_VAL, &clk->src_fsys);
+ writel(CLK_DIV_FSYS0_VAL, &clk->div_fsys0);
+ while (readl(&clk->div_stat_fsys0))
+ ;
+
+ writel(CLK_REG_DISABLE, &clk->clkout_cmu_cpu);
+ writel(CLK_REG_DISABLE, &clk->clkout_cmu_core);
+ writel(CLK_REG_DISABLE, &clk->clkout_cmu_acp);
+ writel(CLK_REG_DISABLE, &clk->clkout_cmu_top);
+ writel(CLK_REG_DISABLE, &clk->clkout_cmu_lex);
+ writel(CLK_REG_DISABLE, &clk->clkout_cmu_r0x);
+ writel(CLK_REG_DISABLE, &clk->clkout_cmu_r1x);
+ writel(CLK_REG_DISABLE, &clk->clkout_cmu_cdrex);
+
+ writel(CLK_SRC_PERIC0_VAL, &clk->src_peric0);
+ writel(CLK_DIV_PERIC0_VAL, &clk->div_peric0);
+
+ writel(CLK_SRC_PERIC1_VAL, &clk->src_peric1);
+ writel(CLK_DIV_PERIC1_VAL, &clk->div_peric1);
+ writel(CLK_DIV_PERIC2_VAL, &clk->div_peric2);
+ writel(SCLK_SRC_ISP_VAL, &clk->sclk_src_isp);
+ writel(SCLK_DIV_ISP_VAL, &clk->sclk_div_isp);
+ writel(CLK_DIV_ISP0_VAL, &clk->div_isp0);
+ writel(CLK_DIV_ISP1_VAL, &clk->div_isp1);
+ writel(CLK_DIV_ISP2_VAL, &clk->div_isp2);
+
+ /* FIMD1 SRC CLK SELECTION */
+ writel(CLK_SRC_DISP1_0_VAL, &clk->src_disp1_0);
+
+ val = MMC2_PRE_RATIO_VAL << MMC2_PRE_RATIO_OFFSET
+ | MMC2_RATIO_VAL << MMC2_RATIO_OFFSET
+ | MMC3_PRE_RATIO_VAL << MMC3_PRE_RATIO_OFFSET
+ | MMC3_RATIO_VAL << MMC3_RATIO_OFFSET;
+ writel(val, &clk->div_fsys2);
+}
+
+void clock_gate(void)
+{
+ struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE;
+
+ /* CLK_GATE_IP_SYSRGT */
+ clrbits_le32(&clk->gate_ip_sysrgt, CLK_C2C_MASK);
+
+ /* CLK_GATE_IP_ACP */
+ clrbits_le32(&clk->gate_ip_acp, CLK_SMMUG2D_MASK |
+ CLK_SMMUSSS_MASK |
+ CLK_SMMUMDMA_MASK |
+ CLK_ID_REMAPPER_MASK |
+ CLK_G2D_MASK |
+ CLK_SSS_MASK |
+ CLK_MDMA_MASK |
+ CLK_SECJTAG_MASK);
+
+ /* CLK_GATE_BUS_SYSLFT */
+ clrbits_le32(&clk->gate_bus_syslft, CLK_EFCLK_MASK);
+
+ /* CLK_GATE_IP_ISP0 */
+ clrbits_le32(&clk->gate_ip_isp0, CLK_UART_ISP_MASK |
+ CLK_WDT_ISP_MASK |
+ CLK_PWM_ISP_MASK |
+ CLK_MTCADC_ISP_MASK |
+ CLK_I2C1_ISP_MASK |
+ CLK_I2C0_ISP_MASK |
+ CLK_MPWM_ISP_MASK |
+ CLK_MCUCTL_ISP_MASK |
+ CLK_INT_COMB_ISP_MASK |
+ CLK_SMMU_MCUISP_MASK |
+ CLK_SMMU_SCALERP_MASK |
+ CLK_SMMU_SCALERC_MASK |
+ CLK_SMMU_FD_MASK |
+ CLK_SMMU_DRC_MASK |
+ CLK_SMMU_ISP_MASK |
+ CLK_GICISP_MASK |
+ CLK_ARM9S_MASK |
+ CLK_MCUISP_MASK |
+ CLK_SCALERP_MASK |
+ CLK_SCALERC_MASK |
+ CLK_FD_MASK |
+ CLK_DRC_MASK |
+ CLK_ISP_MASK);
+
+ /* CLK_GATE_IP_ISP1 */
+ clrbits_le32(&clk->gate_ip_isp1, CLK_SPI1_ISP_MASK |
+ CLK_SPI0_ISP_MASK |
+ CLK_SMMU3DNR_MASK |
+ CLK_SMMUDIS1_MASK |
+ CLK_SMMUDIS0_MASK |
+ CLK_SMMUODC_MASK |
+ CLK_3DNR_MASK |
+ CLK_DIS_MASK |
+ CLK_ODC_MASK);
+
+ /* CLK_GATE_SCLK_ISP */
+ clrbits_le32(&clk->gate_sclk_isp, SCLK_MPWM_ISP_MASK);
+
+ /* CLK_GATE_IP_GSCL */
+ clrbits_le32(&clk->gate_ip_gscl, CLK_SMMUFIMC_LITE2_MASK |
+ CLK_SMMUFIMC_LITE1_MASK |
+ CLK_SMMUFIMC_LITE0_MASK |
+ CLK_SMMUGSCL3_MASK |
+ CLK_SMMUGSCL2_MASK |
+ CLK_SMMUGSCL1_MASK |
+ CLK_SMMUGSCL0_MASK |
+ CLK_GSCL_WRAP_B_MASK |
+ CLK_GSCL_WRAP_A_MASK |
+ CLK_CAMIF_TOP_MASK |
+ CLK_GSCL3_MASK |
+ CLK_GSCL2_MASK |
+ CLK_GSCL1_MASK |
+ CLK_GSCL0_MASK);
+
+ /* CLK_GATE_IP_DISP1 */
+ clrbits_le32(&clk->gate_ip_disp1, CLK_SMMUTVX_MASK |
+ CLK_ASYNCTVX_MASK |
+ CLK_HDMI_MASK |
+ CLK_MIXER_MASK |
+ CLK_DSIM1_MASK);
+
+ /* CLK_GATE_IP_MFC */
+ clrbits_le32(&clk->gate_ip_mfc, CLK_SMMUMFCR_MASK |
+ CLK_SMMUMFCL_MASK |
+ CLK_MFC_MASK);
+
+ /* CLK_GATE_IP_GEN */
+ clrbits_le32(&clk->gate_ip_gen, CLK_SMMUMDMA1_MASK |
+ CLK_SMMUJPEG_MASK |
+ CLK_SMMUROTATOR_MASK |
+ CLK_MDMA1_MASK |
+ CLK_JPEG_MASK |
+ CLK_ROTATOR_MASK);
+
+ /* CLK_GATE_IP_FSYS */
+ clrbits_le32(&clk->gate_ip_fsys, CLK_WDT_IOP_MASK |
+ CLK_SMMUMCU_IOP_MASK |
+ CLK_SATA_PHY_I2C_MASK |
+ CLK_SATA_PHY_CTRL_MASK |
+ CLK_MCUCTL_MASK |
+ CLK_NFCON_MASK |
+ CLK_SMMURTIC_MASK |
+ CLK_RTIC_MASK |
+ CLK_MIPI_HSI_MASK |
+ CLK_USBOTG_MASK |
+ CLK_SATA_MASK |
+ CLK_PDMA1_MASK |
+ CLK_PDMA0_MASK |
+ CLK_MCU_IOP_MASK);
+
+ /* CLK_GATE_IP_PERIC */
+ clrbits_le32(&clk->gate_ip_peric, CLK_HS_I2C3_MASK |
+ CLK_HS_I2C2_MASK |
+ CLK_HS_I2C1_MASK |
+ CLK_HS_I2C0_MASK |
+ CLK_AC97_MASK |
+ CLK_SPDIF_MASK |
+ CLK_PCM2_MASK |
+ CLK_PCM1_MASK |
+ CLK_I2S2_MASK |
+ CLK_SPI2_MASK |
+ CLK_SPI0_MASK);
+
+ /*
+ * CLK_GATE_IP_PERIS
+ * Note: Keep CHIPID_APBIF ungated to ensure reading the product ID
+ * register (PRO_ID) works correctly when the OS kernel determines
+ * which chip it is running on.
+ */
+ clrbits_le32(&clk->gate_ip_peris, CLK_RTC_MASK |
+ CLK_TZPC9_MASK |
+ CLK_TZPC8_MASK |
+ CLK_TZPC7_MASK |
+ CLK_TZPC6_MASK |
+ CLK_TZPC5_MASK |
+ CLK_TZPC4_MASK |
+ CLK_TZPC3_MASK |
+ CLK_TZPC2_MASK |
+ CLK_TZPC1_MASK |
+ CLK_TZPC0_MASK);
+
+ /* CLK_GATE_BLOCK */
+ clrbits_le32(&clk->gate_block, CLK_ACP_MASK);
+
+ /* CLK_GATE_IP_CDREX */
+ clrbits_le32(&clk->gate_ip_cdrex, CLK_DPHY0_MASK |
+ CLK_DPHY1_MASK |
+ CLK_TZASC_DRBXR_MASK);
+
+}
+
+void clock_init_dp_clock(void)
+{
+ struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE;
+
+ /* DP clock enable */
+ setbits_le32(&clk->gate_ip_disp1, CLK_GATE_DP1_ALLOW);
+
+ /* We run DP at 267 Mhz */
+ setbits_le32(&clk->div_disp1_0, CLK_DIV_DISP1_0_FIMD1);
+}
+
diff --git a/src/cpu/samsung/exynos5420/cpu.c b/src/cpu/samsung/exynos5420/cpu.c
new file mode 100644
index 0000000000..0abc0a3022
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/cpu.c
@@ -0,0 +1,181 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stddef.h>
+#include <delay.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <cbmem.h>
+#include <arch/cache.h>
+#include "fimd.h"
+#include "dp-core.h"
+#include "cpu.h"
+#include "clk.h"
+#include "chip.h"
+
+#define RAM_BASE_KB (CONFIG_SYS_SDRAM_BASE >> 10)
+#define RAM_SIZE_KB (CONFIG_DRAM_SIZE_MB << 10UL)
+
+static unsigned int cpu_id;
+static unsigned int cpu_rev;
+
+static void set_cpu_id(void)
+{
+ cpu_id = readl((void *)EXYNOS_PRO_ID);
+ cpu_id = (0xC000 | ((cpu_id & 0x00FFF000) >> 12));
+
+ /*
+ * 0xC200: EXYNOS4210 EVT0
+ * 0xC210: EXYNOS4210 EVT1
+ */
+ if (cpu_id == 0xC200) {
+ cpu_id |= 0x10;
+ cpu_rev = 0;
+ } else if (cpu_id == 0xC210) {
+ cpu_rev = 1;
+ }
+}
+
+/* we distinguish a display port device from a raw graphics device
+ * because there are dramatic differences in startup depending on
+ * graphics usage. To make startup fast and easier to understand and
+ * debug we explicitly name this common case. The alternate approach,
+ * involving lots of machine and callbacks, is hard to debug and
+ * verify.
+ */
+static void exynos_displayport_init(device_t dev)
+{
+ int ret;
+ struct cpu_samsung_exynos5420_config *conf = dev->chip_info;
+ /* put these on the stack. If, at some point, we want to move
+ * this code to a pre-ram stage, it will be much easier.
+ */
+ vidinfo_t vi;
+ struct exynos5_fimd_panel panel;
+ unsigned long int fb_size;
+ u32 lcdbase;
+
+ memset(&vi, 0, sizeof(vi));
+ memset(&panel, 0, sizeof(panel));
+
+ panel.is_dp = 1; /* Display I/F is eDP */
+ /* while it is true that we did a memset to zero,
+ * we leave some 'set to zero' entries here to make
+ * it clear what's going on. Graphics is confusing.
+ */
+ panel.is_mipi = 0;
+ panel.fixvclk = 0;
+ panel.ivclk = 0;
+ panel.clkval_f = conf->clkval_f;
+ panel.upper_margin = conf->upper_margin;
+ panel.lower_margin = conf->lower_margin;
+ panel.vsync = conf->vsync;
+ panel.left_margin = conf->left_margin;
+ panel.right_margin = conf->right_margin;
+ panel.hsync = conf->hsync;
+ panel.xres = conf->xres;
+ panel.yres = conf->yres;
+
+ vi.vl_col = conf->xres;
+ vi.vl_row = conf->yres;
+ vi.vl_bpix = conf->bpp;
+ /*
+ * The size is a magic number from hardware. Allocate enough for the
+ * frame buffer and color map.
+ */
+ fb_size = conf->xres * conf->yres * (conf->bpp / 8);
+ lcdbase = (uintptr_t)cbmem_add(CBMEM_ID_CONSOLE, fb_size + 64*KiB);
+ printk(BIOS_SPEW, "LCD colormap base is %p\n", (void *)(lcdbase));
+ mmio_resource(dev, 0, lcdbase/KiB, 64);
+ vi.cmap = (void *)lcdbase;
+
+ /*
+ * We need to clean and invalidate the framebuffer region and disable
+ * caching as well. We assume that our dcache <--> memory address
+ * space is identity-mapped in 1MB chunks, so align accordingly.
+ *
+ * Note: We may want to do something clever to ensure the framebuffer
+ * region is aligned such that we don't change dcache policy for other
+ * stuff inadvertantly.
+ *
+ * FIXME: Is disabling/re-enabling the MMU entirely necessary?
+ */
+ uint32_t lower = ALIGN_DOWN(lcdbase, MiB);
+ uint32_t upper = ALIGN_UP(lcdbase + fb_size + 64*KiB, MiB);
+ dcache_clean_invalidate_by_mva(lower, upper - lower);
+ dcache_mmu_disable();
+ mmu_config_range(lower/MiB, (upper - lower)/MiB, DCACHE_OFF);
+ dcache_mmu_enable();
+
+ lcdbase += 64*KiB;
+ mmio_resource(dev, 1, lcdbase/KiB, (fb_size + KiB - 1)/KiB);
+ printk(BIOS_DEBUG,
+ "Initializing Exynos VGA, base %p\n", (void *)lcdbase);
+ memset((void *)lcdbase, 0, fb_size); /* clear the framebuffer */
+ ret = lcd_ctrl_init(&vi, &panel, (void *)lcdbase);
+}
+
+static void cpu_init(device_t dev)
+{
+ exynos_displayport_init(dev);
+ ram_resource(dev, 0, RAM_BASE_KB, RAM_SIZE_KB);
+
+ set_cpu_id();
+
+ printk(BIOS_INFO, "CPU: S5P%X @ %ldMHz\n",
+ cpu_id, get_arm_clk() / (1024*1024));
+}
+
+static void cpu_noop(device_t dev)
+{
+}
+
+static struct device_operations cpu_ops = {
+ .read_resources = cpu_noop,
+ .set_resources = cpu_noop,
+ .enable_resources = cpu_init,
+ .init = cpu_noop,
+ .scan_bus = 0,
+};
+
+static void enable_exynos5420_dev(device_t dev)
+{
+ dev->ops = &cpu_ops;
+}
+
+struct chip_operations cpu_samsung_exynos5420_ops = {
+ CHIP_NAME("CPU Samsung Exynos 5420")
+ .enable_dev = enable_exynos5420_dev,
+};
+
+void exynos5420_config_l2_cache(void)
+{
+ uint32_t val;
+
+ /*
+ * Bit 9 - L2 tag RAM setup (1 cycle)
+ * Bits 8:6 - L2 tag RAM latency (3 cycles)
+ * Bit 5 - L2 data RAM setup (1 cycle)
+ * Bits 2:0 - L2 data RAM latency (3 cycles)
+ */
+ val = (1 << 9) | (0x2 << 6) | (1 << 5) | (0x2);
+ write_l2ctlr(val);
+}
diff --git a/src/cpu/samsung/exynos5420/cpu.h b/src/cpu/samsung/exynos5420/cpu.h
new file mode 100644
index 0000000000..62ff424611
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/cpu.h
@@ -0,0 +1,130 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_CPU_H
+#define CPU_SAMSUNG_EXYNOS5420_CPU_H
+
+#include <arch/io.h>
+
+#define DEVICE_NOT_AVAILABLE 0
+
+#define EXYNOS_PRO_ID 0x10000000
+
+/* Address of address of function that copys data from SD or MMC */
+#define EXYNOS_COPY_MMC_FNPTR_ADDR 0x02020030
+
+/* Address of address of function that copys data from SPI */
+#define EXYNOS_COPY_SPI_FNPTR_ADDR 0x02020058
+
+/* Address of address of function that copys data through USB */
+#define EXYNOS_COPY_USB_FNPTR_ADDR 0x02020070
+
+/* Boot mode values */
+#define EXYNOS_USB_SECONDARY_BOOT 0xfeed0002
+
+#define EXYNOS_IRAM_SECONDARY_BASE 0x02020018
+
+#define EXYNOS_I2C_SPACING 0x10000
+
+/* EXYNOS5 */
+#define EXYNOS5_GPIO_PART6_BASE 0x03860000 /* Z<6:0> */
+#define EXYNOS5_PRO_ID 0x10000000
+#define EXYNOS5_CLOCK_BASE 0x10010000
+#define EXYNOS5_POWER_BASE 0x10040000
+#define EXYNOS5_SWRESET 0x10040400
+#define EXYNOS5_SYSREG_BASE 0x10050000
+#define EXYNOS5_TZPC1_DECPROT1SET 0x10110810
+#define EXYNOS5_MULTI_CORE_TIMER_BASE 0x101C0000
+#define EXYNOS5_WATCHDOG_BASE 0x101D0000
+#define EXYNOS5_ACE_SFR_BASE 0x10830000
+#define EXYNOS5_DMC_PHY0_BASE 0x10C00000
+#define EXYNOS5_DMC_PHY1_BASE 0x10C10000
+#define EXYNOS5_GPIO_PART4_BASE 0x10D10000 /* V00..V37 */
+#define EXYNOS5_GPIO_PART5_BASE 0x10D100C0 /* V40..V47 */
+#define EXYNOS5_DMC_CTRL_BASE 0x10DD0000
+#define EXYNOS5_GPIO_PART1_BASE 0x11400000 /* A00..Y67 */
+#define EXYNOS5_GPIO_PART2_BASE 0x11400c00 /* X00..X37 */
+#define EXYNOS5_USB_HOST_EHCI_BASE 0x12110000
+#define EXYNOS5_USBPHY_BASE 0x12130000
+#define EXYNOS5_USBOTG_BASE 0x12140000
+
+#define EXYNOS5_MMC_BASE 0x12200000
+#define EXYNOS5_MSHC_BASE 0x12240000
+
+#define EXYNOS5_SROMC_BASE 0x12250000
+#define EXYNOS5_UART_BASE 0x12C00000
+
+#define EXYNOS5_SPI1_BASE 0x12D30000
+#define EXYNOS5_I2C_BASE 0x12C60000
+#define EXYNOS5_SPI_BASE 0x12D20000
+#define EXYNOS5_PWMTIMER_BASE 0x12DD0000
+#define EXYNOS5_SPI_ISP_BASE 0x131A0000
+#define EXYNOS5_I2S_BASE 0x12D60000
+#define EXYNOS5_GPIO_PART3_BASE 0x13400000 /* E00..H17 */
+#define EXYNOS5_FIMD_BASE 0x14400000
+#define EXYNOS5_DISP1_CTRL_BASE 0x14420000
+#define EXYNOS5_MIPI_DSI1_BASE 0x14500000
+
+#define EXYNOS5_ADC_BASE DEVICE_NOT_AVAILABLE
+#define EXYNOS5_MODEM_BASE DEVICE_NOT_AVAILABLE
+
+/* Compatibility defines */
+#define EXYNOS_POWER_BASE EXYNOS5_POWER_BASE
+
+/* Marker values stored at the bottom of IRAM stack by SPL */
+#define EXYNOS5_SPL_MARKER 0xb004f1a9 /* hexspeak word: bootflag */
+
+/* Distance between each Trust Zone PC register set */
+#define TZPC_BASE_OFFSET 0x10000
+
+#define samsung_get_base_adc() ((struct exynos5_adc *)EXYNOS5_ADC_BASE)
+#define samsung_get_base_clock() ((struct exynos5_clock *)EXYNOS5_CLOCK_BASE)
+#define samsung_get_base_ace_sfr() ((struct exynos5_ace_sfr *)EXYNOS5_ACE_SFR_BASE)
+#define samsung_get_base_dsim() ((struct exynos5_dsim *)EXYNOS5_MIPI_DSI1_BASE)
+#define samsung_get_base_disp_ctrl() ((struct exynos5_disp_ctrl *)EXYNOS5_DISP1_CTRL_BASE)
+#define samsung_get_base_fimd() ((struct exynos5_fimd *)EXYNOS5_FIMD_BASE)
+#define samsung_get_base_pro_id() ((struct exynos5_pro_id *)EXYNOS5_PRO_ID)
+
+#define samsung_get_base_mmc() ((struct exynos5_mmc *)EXYNOS5_MMC_BASE)
+#define samsung_get_base_mshci() ((struct exynos5_mshci *)EXYNOS5_MSHC_BASE)
+
+#define samsung_get_base_modem() ((struct exynos5_modem *)EXYNOS5_MODEM_BASE)
+#define samsung_get_base_sromc() ((struct exynos5_sromc *)EXYNOS5_SROMC_BASE)
+#define samsung_get_base_swreset() ((struct exynos5_swreset *)EXYNOS5_SWRESET)
+#define samsung_get_base_sysreg() ((struct exynos5_sysreg *)EXYNOS5_SYSREG_BASE)
+#define samsung_get_base_timer() ((struct s5p_timer *)EXYNOS5_PWMTIMER_BASE)
+#define samsung_get_base_uart() ((struct exynos5_uart *)EXYNOS5_UART_BASE)
+#define samsung_get_base_usb_phy() ((struct exynos5_usb_phy *)EXYNOS5_USBPHY_BASE)
+#define samsung_get_base_usb_otg() ((struct exynos5_usb_otg *)EXYNOS5_USBOTG_BASE)
+#define samsung_get_base_watchdog() ((struct exynos5_watchdog *)EXYNOS5_WATCHDOG_BASE)
+#define samsung_get_base_power() ((struct exynos5_power *)EXYNOS5_POWER_BASE)
+#define samsung_get_base_i2s() ((struct exynos5_i2s *)EXYNOS5_I2S_BASE)
+#define samsung_get_base_spi1() ((struct exynos5_spi1 *)EXYNOS5_SPI1_BASE)
+#define samsung_get_base_i2c() ((struct exynos5_i2c *)EXYNOS5_I2C_BASE)
+#define samsung_get_base_spi() ((struct exynos5_spi *)EXYNOS5_SPI_BASE)
+#define samsung_get_base_spi_isp() ((struct exynos5_spi_isp *)EXYNOS5_SPI_ISP_BASE)
+
+#define EXYNOS5_SPI_NUM_CONTROLLERS 5
+#define EXYNOS_I2C_MAX_CONTROLLERS 8
+
+void exynos5420_config_l2_cache(void);
+
+extern struct tmu_info exynos5420_tmu_info;
+
+#endif /* _EXYNOS5420_CPU_H */
diff --git a/src/cpu/samsung/exynos5420/dmc.h b/src/cpu/samsung/exynos5420/dmc.h
new file mode 100644
index 0000000000..cd5ff23275
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/dmc.h
@@ -0,0 +1,343 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_DMC_H
+#define CPU_SAMSUNG_EXYNOS5420_DMC_H
+
+#ifndef __ASSEMBLER__
+struct exynos5_dmc {
+ unsigned int concontrol;
+ unsigned int memcontrol;
+ unsigned int memconfig0;
+ unsigned int memconfig1;
+ unsigned int directcmd;
+ unsigned int prechconfig;
+ unsigned int phycontrol0;
+ unsigned char res1[0xc];
+ unsigned int pwrdnconfig;
+ unsigned int timingpzq;
+ unsigned int timingref;
+ unsigned int timingrow;
+ unsigned int timingdata;
+ unsigned int timingpower;
+ unsigned int phystatus;
+ unsigned char res2[0x4];
+ unsigned int chipstatus_ch0;
+ unsigned int chipstatus_ch1;
+ unsigned char res3[0x4];
+ unsigned int mrstatus;
+ unsigned char res4[0x8];
+ unsigned int qoscontrol0;
+ unsigned char resr5[0x4];
+ unsigned int qoscontrol1;
+ unsigned char res6[0x4];
+ unsigned int qoscontrol2;
+ unsigned char res7[0x4];
+ unsigned int qoscontrol3;
+ unsigned char res8[0x4];
+ unsigned int qoscontrol4;
+ unsigned char res9[0x4];
+ unsigned int qoscontrol5;
+ unsigned char res10[0x4];
+ unsigned int qoscontrol6;
+ unsigned char res11[0x4];
+ unsigned int qoscontrol7;
+ unsigned char res12[0x4];
+ unsigned int qoscontrol8;
+ unsigned char res13[0x4];
+ unsigned int qoscontrol9;
+ unsigned char res14[0x4];
+ unsigned int qoscontrol10;
+ unsigned char res15[0x4];
+ unsigned int qoscontrol11;
+ unsigned char res16[0x4];
+ unsigned int qoscontrol12;
+ unsigned char res17[0x4];
+ unsigned int qoscontrol13;
+ unsigned char res18[0x4];
+ unsigned int qoscontrol14;
+ unsigned char res19[0x4];
+ unsigned int qoscontrol15;
+ unsigned char res20[0x14];
+ unsigned int ivcontrol;
+ unsigned int wrtra_config;
+ unsigned int rdlvl_config;
+ unsigned char res21[0x8];
+ unsigned int brbrsvconfig;
+ unsigned int brbqosconfig;
+ unsigned int membaseconfig0;
+ unsigned int membaseconfig1;
+ unsigned char res22[0xc];
+ unsigned int wrlvl_config;
+ unsigned char res23[0xc];
+ unsigned int perevcontrol;
+ unsigned int perev0config;
+ unsigned int perev1config;
+ unsigned int perev2config;
+ unsigned int perev3config;
+ unsigned char res24[0xdebc];
+ unsigned int pmnc_ppc_a;
+ unsigned char res25[0xc];
+ unsigned int cntens_ppc_a;
+ unsigned char res26[0xc];
+ unsigned int cntenc_ppc_a;
+ unsigned char res27[0xc];
+ unsigned int intens_ppc_a;
+ unsigned char res28[0xc];
+ unsigned int intenc_ppc_a;
+ unsigned char res29[0xc];
+ unsigned int flag_ppc_a;
+ unsigned char res30[0xac];
+ unsigned int ccnt_ppc_a;
+ unsigned char res31[0xc];
+ unsigned int pmcnt0_ppc_a;
+ unsigned char res32[0xc];
+ unsigned int pmcnt1_ppc_a;
+ unsigned char res33[0xc];
+ unsigned int pmcnt2_ppc_a;
+ unsigned char res34[0xc];
+ unsigned int pmcnt3_ppc_a;
+};
+
+struct exynos5_phy_control {
+ unsigned int phy_con0;
+ unsigned int phy_con1;
+ unsigned int phy_con2;
+ unsigned int phy_con3;
+ unsigned int phy_con4;
+ unsigned char res1[4];
+ unsigned int phy_con6;
+ unsigned char res2[4];
+ unsigned int phy_con8;
+ unsigned int phy_con9;
+ unsigned int phy_con10;
+ unsigned char res3[4];
+ unsigned int phy_con12;
+ unsigned int phy_con13;
+ unsigned int phy_con14;
+ unsigned int phy_con15;
+ unsigned int phy_con16;
+ unsigned char res4[4];
+ unsigned int phy_con17;
+ unsigned int phy_con18;
+ unsigned int phy_con19;
+ unsigned int phy_con20;
+ unsigned int phy_con21;
+ unsigned int phy_con22;
+ unsigned int phy_con23;
+ unsigned int phy_con24;
+ unsigned int phy_con25;
+ unsigned int phy_con26;
+ unsigned int phy_con27;
+ unsigned int phy_con28;
+ unsigned int phy_con29;
+ unsigned int phy_con30;
+ unsigned int phy_con31;
+ unsigned int phy_con32;
+ unsigned int phy_con33;
+ unsigned int phy_con34;
+ unsigned int phy_con35;
+ unsigned int phy_con36;
+ unsigned int phy_con37;
+ unsigned int phy_con38;
+ unsigned int phy_con39;
+ unsigned int phy_con40;
+ unsigned int phy_con41;
+ unsigned int phy_con42;
+};
+
+enum ddr_mode {
+ DDR_MODE_DDR2,
+ DDR_MODE_DDR3,
+ DDR_MODE_LPDDR2,
+ DDR_MODE_LPDDR3,
+
+ DDR_MODE_COUNT,
+};
+
+/* For reasons unknown, people are in the habit of taking a 32-bit
+ * field with 2 possible values and packing it with, say, 2 bits. A
+ * non-robust encoding, using only 2 bits of a 32-bit field, is
+ * incredibly difficult to deal with when things go wrong, because
+ * there are a lot of things that get expressed as 0, 1, or 2. If
+ * you're scanning with jtag or dumping memory it is really hard to
+ * tell when you've hit the beginning of the struct. So, let's be a
+ * bit smart here. First, while it's common to let the enum count
+ * entries for you, when there are two of them, we can do the
+ * counting. And, let's set the values to something we can easily scan
+ * for in memory. Since '1' and '2' are rather common, we pick
+ * something that's actually of some value when things go wrong. This
+ * setup motivated by a use case: something's going wrong and having a
+ * manuf name of '1' or '2' is completely useless!
+ */
+enum mem_manuf {
+ MEM_MANUF_AUTODETECT,
+ MEM_MANUF_ELPIDA = 0xe7b1da,
+ MEM_MANUF_SAMSUNG = 0x5a5096,
+
+ MEM_MANUF_COUNT = 2, // fancy that.
+};
+
+enum {
+ MEM_TIMINGS_MSR_COUNT = 4,
+};
+
+#define DMC_INTERLEAVE_SIZE 0x1f
+
+/* CONCONTROL register fields */
+#define CONCONTROL_DFI_INIT_START_SHIFT 28
+#define CONCONTROL_RD_FETCH_SHIFT 12
+#define CONCONTROL_RD_FETCH_MASK (0x7 << CONCONTROL_RD_FETCH_SHIFT)
+#define CONCONTROL_AREF_EN_SHIFT 5
+
+/* PRECHCONFIG register field */
+#define PRECHCONFIG_TP_CNT_SHIFT 24
+
+/* PWRDNCONFIG register field */
+#define PWRDNCONFIG_DPWRDN_CYC_SHIFT 0
+#define PWRDNCONFIG_DSREF_CYC_SHIFT 16
+
+/* PHY_CON0 register fields */
+#define PHY_CON0_T_WRRDCMD_SHIFT 17
+#define PHY_CON0_T_WRRDCMD_MASK (0x7 << PHY_CON0_T_WRRDCMD_SHIFT)
+#define PHY_CON0_CTRL_DDR_MODE_SHIFT 11
+
+/* PHY_CON1 register fields */
+#define PHY_CON1_RDLVL_RDDATA_ADJ_SHIFT 0
+
+/* PHY_CON12 register fields */
+#define PHY_CON12_CTRL_START_POINT_SHIFT 24
+#define PHY_CON12_CTRL_INC_SHIFT 16
+#define PHY_CON12_CTRL_FORCE_SHIFT 8
+#define PHY_CON12_CTRL_START_SHIFT 6
+#define PHY_CON12_CTRL_START_MASK (1 << PHY_CON12_CTRL_START_SHIFT)
+#define PHY_CON12_CTRL_DLL_ON_SHIFT 5
+#define PHY_CON12_CTRL_DLL_ON_MASK (1 << PHY_CON12_CTRL_DLL_ON_SHIFT)
+#define PHY_CON12_CTRL_REF_SHIFT 1
+
+/* PHY_CON16 register fields */
+#define PHY_CON16_ZQ_MODE_DDS_SHIFT 24
+#define PHY_CON16_ZQ_MODE_DDS_MASK (0x7 << PHY_CON16_ZQ_MODE_DDS_SHIFT)
+
+#define PHY_CON16_ZQ_MODE_TERM_SHIFT 21
+#define PHY_CON16_ZQ_MODE_TERM_MASK (0x7 << PHY_CON16_ZQ_MODE_TERM_SHIFT)
+
+#define PHY_CON16_ZQ_MODE_NOTERM_MASK (1 << 19)
+
+/* PHY_CON42 register fields */
+#define PHY_CON42_CTRL_BSTLEN_SHIFT 8
+#define PHY_CON42_CTRL_BSTLEN_MASK (0xff << PHY_CON42_CTRL_BSTLEN_SHIFT)
+
+#define PHY_CON42_CTRL_RDLAT_SHIFT 0
+#define PHY_CON42_CTRL_RDLAT_MASK (0x1f << PHY_CON42_CTRL_RDLAT_SHIFT)
+
+/* These are the memory timings for a particular memory type and speed */
+struct mem_timings {
+ enum mem_manuf mem_manuf; /* Memory manufacturer */
+ enum ddr_mode mem_type; /* Memory type */
+ unsigned int frequency_mhz; /* Frequency of memory in MHz */
+
+ /* Here follow the timing parameters for the selected memory */
+ uint8_t apll_mdiv;
+ uint8_t apll_pdiv;
+ uint8_t apll_sdiv;
+ uint8_t mpll_mdiv;
+ uint8_t mpll_pdiv;
+ uint8_t mpll_sdiv;
+ uint8_t cpll_mdiv;
+ uint8_t cpll_pdiv;
+ uint8_t cpll_sdiv;
+ uint8_t gpll_pdiv;
+ uint16_t gpll_mdiv;
+ uint8_t gpll_sdiv;
+ uint8_t epll_mdiv;
+ uint8_t epll_pdiv;
+ uint8_t epll_sdiv;
+ uint8_t vpll_mdiv;
+ uint8_t vpll_pdiv;
+ uint8_t vpll_sdiv;
+ uint8_t bpll_mdiv;
+ uint8_t bpll_pdiv;
+ uint8_t bpll_sdiv;
+ uint8_t use_bpll; /* 1 to use BPLL for cdrex, 0 to use MPLL */
+ uint8_t pclk_cdrex_ratio;
+ unsigned int direct_cmd_msr[MEM_TIMINGS_MSR_COUNT];
+
+ unsigned int timing_ref;
+ unsigned int timing_row;
+ unsigned int timing_data;
+ unsigned int timing_power;
+
+ /* DQS, DQ, DEBUG offsets */
+ unsigned int phy0_dqs;
+ unsigned int phy1_dqs;
+ unsigned int phy0_dq;
+ unsigned int phy1_dq;
+ uint8_t phy0_tFS;
+ uint8_t phy1_tFS;
+ uint8_t phy0_pulld_dqs;
+ uint8_t phy1_pulld_dqs;
+
+ uint8_t lpddr3_ctrl_phy_reset;
+ uint8_t ctrl_start_point;
+ uint8_t ctrl_inc;
+ uint8_t ctrl_start;
+ uint8_t ctrl_dll_on;
+ uint8_t ctrl_ref;
+
+ uint8_t ctrl_force;
+ uint8_t ctrl_rdlat;
+ uint8_t ctrl_bstlen;
+
+ uint8_t fp_resync;
+ uint8_t iv_size;
+ uint8_t dfi_init_start;
+ uint8_t aref_en;
+
+ uint8_t rd_fetch;
+
+ uint8_t zq_mode_dds;
+ uint8_t zq_mode_term;
+ uint8_t zq_mode_noterm; /* 1 to allow termination disable */
+
+ unsigned int memcontrol;
+ unsigned int memconfig;
+
+ unsigned int membaseconfig0;
+ unsigned int membaseconfig1;
+ unsigned int prechconfig_tp_cnt;
+ unsigned int dpwrdn_cyc;
+ unsigned int dsref_cyc;
+ unsigned int concontrol;
+ /* Channel and Chip Selection */
+ uint8_t dmc_channels; /* number of memory channels */
+ uint8_t chips_per_channel; /* number of chips per channel */
+ uint8_t chips_to_configure; /* number of chips to configure */
+ uint8_t send_zq_init; /* 1 to send this command */
+ unsigned int impedance; /* drive strength impedeance */
+ uint8_t gate_leveling_enable; /* check gate leveling is enabled */
+};
+
+/**
+ * Get the correct memory timings for our selected memory type and speed.
+ *
+ * @return pointer to the memory timings that we should use
+ */
+struct mem_timings *get_mem_timings(void);
+
+#endif
+#endif
diff --git a/src/cpu/samsung/exynos5420/dmc_common.c b/src/cpu/samsung/exynos5420/dmc_common.c
new file mode 100644
index 0000000000..3abc3d37f2
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/dmc_common.c
@@ -0,0 +1,183 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Mem setup common file for different types of DDR present on SMDK5420 boards.
+ */
+
+#include <console/console.h>
+#include <arch/io.h>
+#include <delay.h>
+#include "setup.h"
+#include "dmc.h"
+#include "clk.h"
+#include "setup.h"
+
+#define ZQ_INIT_TIMEOUT 10000
+
+int dmc_config_zq(struct mem_timings *mem,
+ struct exynos5_phy_control *phy0_ctrl,
+ struct exynos5_phy_control *phy1_ctrl)
+{
+ unsigned long val = 0;
+ int i;
+
+ /*
+ * ZQ Calibration:
+ * Select Driver Strength,
+ * long calibration for manual calibration
+ */
+ val = PHY_CON16_RESET_VAL;
+ val |= mem->zq_mode_dds << PHY_CON16_ZQ_MODE_DDS_SHIFT;
+ val |= mem->zq_mode_term << PHY_CON16_ZQ_MODE_TERM_SHIFT;
+ val |= ZQ_CLK_DIV_EN;
+ writel(val, &phy0_ctrl->phy_con16);
+ writel(val, &phy1_ctrl->phy_con16);
+
+ /* Disable termination */
+ if (mem->zq_mode_noterm)
+ val |= PHY_CON16_ZQ_MODE_NOTERM_MASK;
+ writel(val, &phy0_ctrl->phy_con16);
+ writel(val, &phy1_ctrl->phy_con16);
+
+ /* ZQ_MANUAL_START: Enable */
+ val |= ZQ_MANUAL_STR;
+ writel(val, &phy0_ctrl->phy_con16);
+ writel(val, &phy1_ctrl->phy_con16);
+
+ /* ZQ_MANUAL_START: Disable */
+ val &= ~ZQ_MANUAL_STR;
+
+ /*
+ * Since we are manaully calibrating the ZQ values,
+ * we are looping for the ZQ_init to complete.
+ */
+ i = ZQ_INIT_TIMEOUT;
+ while ((readl(&phy0_ctrl->phy_con17) & ZQ_DONE) != ZQ_DONE && i > 0) {
+ udelay(1);
+ i--;
+ }
+ if (!i)
+ return -1;
+ writel(val, &phy0_ctrl->phy_con16);
+
+ i = ZQ_INIT_TIMEOUT;
+ while ((readl(&phy1_ctrl->phy_con17) & ZQ_DONE) != ZQ_DONE && i > 0) {
+ udelay(1);
+ i--;
+ }
+ if (!i)
+ return -1;
+ writel(val, &phy1_ctrl->phy_con16);
+
+ return 0;
+}
+
+void update_reset_dll(struct exynos5_dmc *dmc, enum ddr_mode mode)
+{
+ unsigned long val;
+
+ if (mode == DDR_MODE_DDR3) {
+ val = MEM_TERM_EN | PHY_TERM_EN | DMC_CTRL_SHGATE;
+ writel(val, &dmc->phycontrol0);
+ }
+
+ /* Update DLL Information: Force DLL Resyncronization */
+ val = readl(&dmc->phycontrol0);
+ val |= FP_RSYNC;
+ writel(val, &dmc->phycontrol0);
+
+ /* Reset Force DLL Resyncronization */
+ val = readl(&dmc->phycontrol0);
+ val &= ~FP_RSYNC;
+ writel(val, &dmc->phycontrol0);
+}
+
+void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc)
+{
+ int channel, chip;
+
+ for (channel = 0; channel < mem->dmc_channels; channel++) {
+ unsigned long mask;
+
+ mask = channel << DIRECT_CMD_CHANNEL_SHIFT;
+ for (chip = 0; chip < mem->chips_to_configure; chip++) {
+ int i;
+
+ mask |= chip << DIRECT_CMD_CHIP_SHIFT;
+
+ /* Sending NOP command */
+ writel(DIRECT_CMD_NOP | mask, &dmc->directcmd);
+
+ /*
+ * TODO(alim.akhtar@samsung.com): Do we need these
+ * delays? This one and the next were not there for
+ * DDR3.
+ */
+ udelay(100);
+
+ /* Sending EMRS/MRS commands */
+ for (i = 0; i < MEM_TIMINGS_MSR_COUNT; i++) {
+ writel(mem->direct_cmd_msr[i] | mask,
+ &dmc->directcmd);
+ udelay(100);
+ }
+
+ if (mem->send_zq_init) {
+ /* Sending ZQINIT command */
+ writel(DIRECT_CMD_ZQINIT | mask,
+ &dmc->directcmd);
+ /*
+ * FIXME: This was originally sdelay(10000)
+ * in the imported u-boot code. That may have
+ * been meant to be sdelay(0x10000) since that
+ * was used elsewhere in this function. Either
+ * way seems to work, though.
+ */
+ udelay(12);
+ }
+ }
+ }
+}
+
+void dmc_config_prech(struct mem_timings *mem, struct exynos5_dmc *dmc)
+{
+ int channel, chip;
+
+ for (channel = 0; channel < mem->dmc_channels; channel++) {
+ unsigned long mask;
+
+ mask = channel << DIRECT_CMD_CHANNEL_SHIFT;
+ for (chip = 0; chip < mem->chips_per_channel; chip++) {
+ mask |= chip << DIRECT_CMD_CHIP_SHIFT;
+
+ /* PALL (all banks precharge) CMD */
+ writel(DIRECT_CMD_PALL | mask, &dmc->directcmd);
+ udelay(100);
+ }
+ }
+}
+
+void dmc_config_memory(struct mem_timings *mem, struct exynos5_dmc *dmc)
+{
+ writel(mem->memconfig, &dmc->memconfig0);
+ writel(mem->memconfig, &dmc->memconfig1);
+ writel(DMC_MEMBASECONFIG0_VAL, &dmc->membaseconfig0);
+ writel(DMC_MEMBASECONFIG1_VAL, &dmc->membaseconfig1);
+}
+
diff --git a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c
new file mode 100644
index 0000000000..2d780872a4
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c
@@ -0,0 +1,277 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* DDR3 mem setup file for SMDK5420 board based on EXYNOS5 */
+
+#include <console/console.h>
+#include <delay.h>
+#include <arch/io.h>
+#include "clk.h"
+#include "cpu.h"
+#include "dmc.h"
+#include "setup.h"
+
+#define RDLVL_COMPLETE_TIMEOUT 10000
+
+static void reset_phy_ctrl(void)
+{
+ struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE;
+
+ writel(LPDDR3PHY_CTRL_PHY_RESET_OFF, &clk->lpddr3phy_ctrl);
+ writel(LPDDR3PHY_CTRL_PHY_RESET, &clk->lpddr3phy_ctrl);
+
+#if 0
+ /*
+ * For proper memory initialization there should be a minimum delay of
+ * 500us after the LPDDR3PHY_CTRL_PHY_RESET signal.
+ * The below value is an approximate value whose calculation in done
+ * considering that sdelay takes 2 instruction for every 1 delay cycle.
+ * And assuming each instruction takes 1 clock cycle i.e 1/(1.7 Ghz)sec
+ * So for 500 usec, the number of delay cycle should be
+ * (500 * 10^-6) * (1.7 * 10^9) / 2 = 425000
+ *
+ * TODO(hatim.rv@samsung.com): Implement the delay using timer/counter
+ */
+ sdelay(425000);
+#endif
+ udelay(500);
+}
+
+int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size,
+ int mem_reset)
+{
+ unsigned int val;
+ struct exynos5_phy_control *phy0_ctrl, *phy1_ctrl;
+ struct exynos5_dmc *dmc;
+ int i;
+
+ phy0_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY0_BASE;
+ phy1_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY1_BASE;
+ dmc = (struct exynos5_dmc *)EXYNOS5_DMC_CTRL_BASE;
+
+ if (mem_reset) {
+ printk(BIOS_SPEW, "%s: reset phy: ", __func__);
+ reset_phy_ctrl();
+ printk(BIOS_SPEW, "done\n");
+ } else {
+ printk(BIOS_SPEW, "%s: skip mem_reset.\n", __func__);
+ }
+
+ /* Set Impedance Output Driver */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Set Impedance Output Driver\n");
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: mem->impedance 0x%x\n",
+ mem->impedance);
+ val = (mem->impedance << CA_CK_DRVR_DS_OFFSET) |
+ (mem->impedance << CA_CKE_DRVR_DS_OFFSET) |
+ (mem->impedance << CA_CS_DRVR_DS_OFFSET) |
+ (mem->impedance << CA_ADR_DRVR_DS_OFFSET);
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: val 0x%x\n", val);
+ writel(val, &phy0_ctrl->phy_con39);
+ writel(val, &phy1_ctrl->phy_con39);
+
+ /* Set Read Latency and Burst Length for PHY0 and PHY1 */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: "
+ "Set Read Latency and Burst Length for PHY0 and PHY1\n");
+ val = (mem->ctrl_bstlen << PHY_CON42_CTRL_BSTLEN_SHIFT) |
+ (mem->ctrl_rdlat << PHY_CON42_CTRL_RDLAT_SHIFT);
+ writel(val, &phy0_ctrl->phy_con42);
+ writel(val, &phy1_ctrl->phy_con42);
+
+ /* ZQ Calibration */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: ZQ Calibration\n");
+ if (dmc_config_zq(mem, phy0_ctrl, phy1_ctrl))
+ return SETUP_ERR_ZQ_CALIBRATION_FAILURE;
+
+ /* DQ Signal */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: DQ Signal\n");
+ writel(mem->phy0_pulld_dqs, &phy0_ctrl->phy_con14);
+ writel(mem->phy1_pulld_dqs, &phy1_ctrl->phy_con14);
+
+ writel(mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT)
+ | (mem->dfi_init_start << CONCONTROL_DFI_INIT_START_SHIFT),
+ &dmc->concontrol);
+
+ update_reset_dll(dmc, DDR_MODE_DDR3);
+
+ /* DQS Signal */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: DQS Signal\n");
+ writel(mem->phy0_dqs, &phy0_ctrl->phy_con4);
+ writel(mem->phy1_dqs, &phy1_ctrl->phy_con4);
+
+ writel(mem->phy0_dq, &phy0_ctrl->phy_con6);
+ writel(mem->phy1_dq, &phy1_ctrl->phy_con6);
+
+ writel(mem->phy0_tFS, &phy0_ctrl->phy_con10);
+ writel(mem->phy1_tFS, &phy1_ctrl->phy_con10);
+
+ val = (mem->ctrl_start_point << PHY_CON12_CTRL_START_POINT_SHIFT) |
+ (mem->ctrl_inc << PHY_CON12_CTRL_INC_SHIFT) |
+ (mem->ctrl_dll_on << PHY_CON12_CTRL_DLL_ON_SHIFT) |
+ (mem->ctrl_ref << PHY_CON12_CTRL_REF_SHIFT);
+ writel(val, &phy0_ctrl->phy_con12);
+ writel(val, &phy1_ctrl->phy_con12);
+
+ /* Start DLL locking */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Start DLL Locking\n");
+ writel(val | (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT),
+ &phy0_ctrl->phy_con12);
+ writel(val | (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT),
+ &phy1_ctrl->phy_con12);
+
+ update_reset_dll(dmc, DDR_MODE_DDR3);
+
+ writel(mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT),
+ &dmc->concontrol);
+
+ /* Memory Channel Inteleaving Size */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: "
+ "Memory Channel Inteleaving Size\n");
+ writel(mem->iv_size, &dmc->ivcontrol);
+
+ /* Set DMC MEMCONTROL register */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Set DMC MEMCONTROL register\n");
+ val = mem->memcontrol & ~DMC_MEMCONTROL_DSREF_ENABLE;
+ writel(val, &dmc->memcontrol);
+
+ writel(mem->memconfig, &dmc->memconfig0);
+ writel(mem->memconfig, &dmc->memconfig1);
+ writel(mem->membaseconfig0, &dmc->membaseconfig0);
+ writel(mem->membaseconfig1, &dmc->membaseconfig1);
+
+ /* Precharge Configuration */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Precharge Configuration\n");
+ writel(mem->prechconfig_tp_cnt << PRECHCONFIG_TP_CNT_SHIFT,
+ &dmc->prechconfig);
+
+ /* Power Down mode Configuration */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: "
+ "Power Down mode Configuraation\n");
+ writel(mem->dpwrdn_cyc << PWRDNCONFIG_DPWRDN_CYC_SHIFT |
+ mem->dsref_cyc << PWRDNCONFIG_DSREF_CYC_SHIFT,
+ &dmc->pwrdnconfig);
+
+ /* TimingRow, TimingData, TimingPower and Timingaref
+ * values as per Memory AC parameters
+ */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: "
+ "TimingRow, TimingData, TimingPower and Timingaref\n");
+ writel(mem->timing_ref, &dmc->timingref);
+ writel(mem->timing_row, &dmc->timingrow);
+ writel(mem->timing_data, &dmc->timingdata);
+ writel(mem->timing_power, &dmc->timingpower);
+
+ /* Send PALL command */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Send PALL Command\n");
+ dmc_config_prech(mem, dmc);
+
+ /* Send NOP, MRS and ZQINIT commands */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Send NOP, MRS, and ZQINIT\n");
+ dmc_config_mrs(mem, dmc);
+
+ if (mem->gate_leveling_enable) {
+ val = PHY_CON0_RESET_VAL;
+ val |= P0_CMD_EN;
+ writel(val, &phy0_ctrl->phy_con0);
+ writel(val, &phy1_ctrl->phy_con0);
+
+ val = PHY_CON2_RESET_VAL;
+ val |= INIT_DESKEW_EN;
+ writel(val, &phy0_ctrl->phy_con2);
+ writel(val, &phy1_ctrl->phy_con2);
+
+ val = PHY_CON0_RESET_VAL;
+ val |= P0_CMD_EN;
+ val |= BYTE_RDLVL_EN;
+ writel(val, &phy0_ctrl->phy_con0);
+ writel(val, &phy1_ctrl->phy_con0);
+
+ val = (mem->ctrl_start_point <<
+ PHY_CON12_CTRL_START_POINT_SHIFT) |
+ (mem->ctrl_inc << PHY_CON12_CTRL_INC_SHIFT) |
+ (mem->ctrl_force << PHY_CON12_CTRL_FORCE_SHIFT) |
+ (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT) |
+ (mem->ctrl_ref << PHY_CON12_CTRL_REF_SHIFT);
+ writel(val, &phy0_ctrl->phy_con12);
+ writel(val, &phy1_ctrl->phy_con12);
+
+ val = PHY_CON2_RESET_VAL;
+ val |= INIT_DESKEW_EN;
+ val |= RDLVL_GATE_EN;
+ writel(val, &phy0_ctrl->phy_con2);
+ writel(val, &phy1_ctrl->phy_con2);
+
+ val = PHY_CON0_RESET_VAL;
+ val |= P0_CMD_EN;
+ val |= BYTE_RDLVL_EN;
+ val |= CTRL_SHGATE;
+ writel(val, &phy0_ctrl->phy_con0);
+ writel(val, &phy1_ctrl->phy_con0);
+
+ val = PHY_CON1_RESET_VAL;
+ val &= ~(CTRL_GATEDURADJ_MASK);
+ writel(val, &phy0_ctrl->phy_con1);
+ writel(val, &phy1_ctrl->phy_con1);
+
+ writel(CTRL_RDLVL_GATE_ENABLE, &dmc->rdlvl_config);
+ i = RDLVL_COMPLETE_TIMEOUT;
+ while ((readl(&dmc->phystatus) &
+ (RDLVL_COMPLETE_CHO | RDLVL_COMPLETE_CH1)) !=
+ (RDLVL_COMPLETE_CHO | RDLVL_COMPLETE_CH1) && i > 0) {
+ /*
+ * TODO(waihong): Comment on how long this take to
+ * timeout
+ */
+ udelay(1);
+ i--;
+ }
+ if (!i){
+ printk(BIOS_SPEW, "Timeout on RDLVL. No DRAM.\n");
+ return SETUP_ERR_RDLV_COMPLETE_TIMEOUT;
+ }
+ writel(CTRL_RDLVL_GATE_DISABLE, &dmc->rdlvl_config);
+
+ writel(0, &phy0_ctrl->phy_con14);
+ writel(0, &phy1_ctrl->phy_con14);
+
+ val = (mem->ctrl_start_point <<
+ PHY_CON12_CTRL_START_POINT_SHIFT) |
+ (mem->ctrl_inc << PHY_CON12_CTRL_INC_SHIFT) |
+ (mem->ctrl_force << PHY_CON12_CTRL_FORCE_SHIFT) |
+ (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT) |
+ (mem->ctrl_dll_on << PHY_CON12_CTRL_DLL_ON_SHIFT) |
+ (mem->ctrl_ref << PHY_CON12_CTRL_REF_SHIFT);
+ writel(val, &phy0_ctrl->phy_con12);
+ writel(val, &phy1_ctrl->phy_con12);
+
+ update_reset_dll(dmc, DDR_MODE_DDR3);
+ }
+
+ /* Send PALL command */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Send PALL Command\n");
+ dmc_config_prech(mem, dmc);
+
+ writel(mem->memcontrol, &dmc->memcontrol);
+
+ /* Set DMC Concontrol and enable auto-refresh counter */
+ printk(BIOS_SPEW, "ddr3_mem_ctrl_init: "
+ "Set DMC Concontrol and enable auto-refresh counter\n");
+ writel(mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT)
+ | (mem->aref_en << CONCONTROL_AREF_EN_SHIFT), &dmc->concontrol);
+ return 0;
+}
diff --git a/src/cpu/samsung/exynos5420/dp-core.h b/src/cpu/samsung/exynos5420/dp-core.h
new file mode 100644
index 0000000000..7b81037776
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/dp-core.h
@@ -0,0 +1,268 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Header file for Samsung DP (Display Port) interface driver. */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_DP_CORE_H
+#define CPU_SAMSUNG_EXYNOS5420_DP_CORE_H
+
+#define STREAM_ON_TIMEOUT 100
+#define PLL_LOCK_TIMEOUT 10
+#define DP_INIT_TRIES 10
+#define MAX_CR_LOOP 5
+#define MAX_EQ_LOOP 4
+
+/* Link tare type */
+enum link_rate {
+ LINK_RATE_1_62GBPS = 0x06,
+ LINK_RATE_2_70GBPS = 0x0a
+};
+
+/* Number of lanes supported */
+enum link_lane_count {
+ LANE_COUNT1 = 1,
+ LANE_COUNT2 = 2,
+ LANE_COUNT4 = 4
+};
+
+/* Pre emphasis level */
+enum pre_emphasis_level {
+ PRE_EMPHASIS_LEVEL_0,
+ PRE_EMPHASIS_LEVEL_1,
+ PRE_EMPHASIS_LEVEL_2,
+ PRE_EMPHASIS_LEVEL_3,
+};
+
+/* Type of color space */
+enum color_space {
+ COLOR_RGB,
+ COLOR_YCBCR422,
+ COLOR_YCBCR444
+};
+
+/* Video input Bit Per Color */
+enum color_depth {
+ COLOR_6,
+ COLOR_8,
+ COLOR_10,
+ COLOR_12
+};
+
+/* Type of YCbCr coefficient */
+enum color_coefficient {
+ COLOR_YCBCR601,
+ COLOR_YCBCR709
+};
+
+/* Color range */
+enum dynamic_range {
+ VESA,
+ CEA
+};
+
+/* Status of PLL clock */
+enum pll_status {
+ PLL_UNLOCKED,
+ PLL_LOCKED
+};
+
+/* To choose type of m_value */
+enum clock_recovery_m_value_type {
+ CALCULATED_M,
+ REGISTER_M
+};
+
+struct video_info {
+ enum color_space color_space;
+ enum dynamic_range dynamic_range;
+ enum color_coefficient ycbcr_coeff;
+ enum color_depth color_depth;
+
+ enum link_rate link_rate;
+ enum link_lane_count lane_count;
+
+ char *name;
+
+ unsigned int h_sync_polarity:1;
+ unsigned int v_sync_polarity:1;
+ unsigned int interlaced:1;
+};
+
+struct link_train {
+ u8 link_rate;
+ u8 lane_count;
+};
+
+struct s5p_dp_device {
+ unsigned int irq;
+ struct exynos5_dp *base;
+ struct video_info *video_info;
+ struct link_train link_train;
+};
+
+/* this struct is used by mainboards to pass mode info to the driver */
+typedef struct vidinfo {
+ u16 vl_col;
+ u16 vl_row;
+ u8 vl_bpix;
+ u16 *cmap;
+} vidinfo_t;
+
+/* s5p_dp_reg.c */
+
+/*
+ * Reset DP module
+ *
+ * param dp pointer to main s5p-dp structure
+ */
+void s5p_dp_reset(struct s5p_dp_device *dp);
+/*
+ * Initialize DP to recieve video stream
+ *
+ * param dp pointer to main s5p-dp structure
+ */
+void s5p_dp_init_video(struct s5p_dp_device *dp);
+/*
+ * Check whether PLL is locked
+ *
+ * param dp pointer to main s5p-dp structure
+ * return Lock status
+ */
+unsigned int s5p_dp_get_pll_lock_status(struct s5p_dp_device *dp);
+/*
+ * Initialize analog functions of DP
+ *
+ * param dp pointer to main s5p-dp structure
+ * return 0 on success
+ */
+int s5p_dp_init_analog_func(struct s5p_dp_device *dp);
+/*
+ * Initialize DP for AUX transaction
+ *
+ * param dp pointer to main s5p-dp structure
+ */
+void s5p_dp_init_aux(struct s5p_dp_device *dp);
+
+/*
+ * Start an AUX transaction.
+ *
+ * param dp pointer to main s5p-dp structure
+ */
+int s5p_dp_start_aux_transaction(struct s5p_dp_device *dp);
+
+/*
+ * Write a byte to DPCD register
+ *
+ * param dp pointer to main s5p-dp structure
+ * param reg_addr DPCD register to be written
+ * param data byte data to be written
+ * return write status
+ */
+int s5p_dp_write_byte_to_dpcd(struct s5p_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char data);
+/*
+ * Read a byte from DPCD register
+ *
+ * param dp pointer to main s5p-dp structure
+ * param reg_addr DPCD register to read
+ * param data read byte data
+ * return read status
+ */
+int s5p_dp_read_byte_from_dpcd(struct s5p_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char *data);
+/*
+ * Initialize DP video functions
+ *
+ * param dp pointer to main s5p-dp structure
+ */
+//void s5p_dp_init_video(struct s5p_dp_device *dp);
+
+/*
+ * Set color parameters for display
+ *
+ * param dp pointer to main s5p-dp structure
+ * param color_depth Video input Bit Per Color
+ * param color_space Colorimetric format of input video
+ * param dynamic_range VESA range or CEA range
+ * param coeff YCbCr Coefficients of input video
+ */
+void s5p_dp_set_video_color_format(struct s5p_dp_device *dp,
+ unsigned int color_depth,
+ unsigned int color_space,
+ unsigned int dynamic_range,
+ unsigned int coeff);
+/*
+ * Check whether video clock is on
+ *
+ * param dp pointer to main s5p-dp structure
+ * return clock status
+ */
+int s5p_dp_is_slave_video_stream_clock_on(struct s5p_dp_device *dp);
+/*
+ * Check whether video clock is on
+ *
+ * param dp pointer to main s5p-dp structure
+ * param type clock_recovery_m_value_type
+ * param m_value to caluculate m_vid value
+ * param n_value to caluculate n_vid value
+ */
+void s5p_dp_set_video_cr_mn(struct s5p_dp_device *dp,
+ enum clock_recovery_m_value_type type,
+ unsigned int m_value,
+ unsigned int n_value);
+/*
+ * Set DP to video slave mode thereby enabling video master
+ *
+ * param dp pointer to main s5p-dp structure
+ */
+void s5p_dp_enable_video_master(struct s5p_dp_device *dp);
+/*
+ * Check whether video stream is on
+ *
+ * param dp pointer to main s5p-dp structure
+ * return video stream status
+ */
+int s5p_dp_is_video_stream_on(struct s5p_dp_device *dp);
+/*
+ * Configure DP in slave mode
+ *
+ * param dp pointer to main s5p-dp structure
+ * param video_info pointer to main video_info structure.
+ */
+void s5p_dp_config_video_slave_mode(struct s5p_dp_device *dp,
+ struct video_info *video_info);
+
+/*
+ * Wait unitl HW link training done
+ *
+ * param dp pointer to main s5p-dp structure
+ */
+void s5p_dp_wait_hw_link_training_done(struct s5p_dp_device *dp);
+
+/* startup and init */
+struct exynos5_fimd_panel;
+void fb_init(vidinfo_t *panel_info, void *lcdbase,
+ struct exynos5_fimd_panel *pd);
+int dp_controller_init(struct s5p_dp_device *dp_device);
+int lcd_ctrl_init(vidinfo_t *panel_info,
+ struct exynos5_fimd_panel *panel_data, void *lcdbase);
+#endif /* CPU_SAMSUNG_EXYNOS5420_DP_CORE_H */
diff --git a/src/cpu/samsung/exynos5420/dp-reg.c b/src/cpu/samsung/exynos5420/dp-reg.c
new file mode 100644
index 0000000000..eb53356449
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/dp-reg.c
@@ -0,0 +1,495 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Samsung DP (Display port) register interface driver. */
+
+#include <console/console.h>
+#include <arch/io.h>
+#include <delay.h>
+#include "timer.h"
+#include "clk.h"
+#include "cpu.h"
+#include "periph.h"
+#include "dp.h"
+#include "fimd.h"
+#include "dp-core.h"
+
+void s5p_dp_reset(struct s5p_dp_device *dp)
+{
+ u32 reg;
+ struct exynos5_dp *base = dp->base;
+
+ writel(RESET_DP_TX, &base->dp_tx_sw_reset);
+
+ /* Stop Video */
+ clrbits_le32(&base->video_ctl_1, VIDEO_EN);
+ clrbits_le32(&base->video_ctl_1, HDCP_VIDEO_MUTE);
+
+ reg = MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N |
+ AUD_FIFO_FUNC_EN_N | AUD_FUNC_EN_N |
+ HDCP_FUNC_EN_N | SW_FUNC_EN_N;
+ writel(reg, &base->func_en_1);
+
+ reg = SSC_FUNC_EN_N | AUX_FUNC_EN_N |
+ SERDES_FIFO_FUNC_EN_N |
+ LS_CLK_DOMAIN_FUNC_EN_N;
+ writel(reg, &base->func_en_2);
+
+ udelay(20);
+
+ reg = LANE3_MAP_LOGIC_LANE_3 | LANE2_MAP_LOGIC_LANE_2 |
+ LANE1_MAP_LOGIC_LANE_1 | LANE0_MAP_LOGIC_LANE_0;
+
+ writel(reg, &base->lane_map);
+
+ writel(0x0, &base->sys_ctl_1);
+ writel(0x40, &base->sys_ctl_2);
+ writel(0x0, &base->sys_ctl_3);
+ writel(0x0, &base->sys_ctl_4);
+
+ writel(0x0, &base->pkt_send_ctl);
+ writel(0x0, &base->dp_hdcp_ctl);
+
+ writel(0x5e, &base->dp_hpd_deglitch_l);
+ writel(0x1a, &base->dp_hpd_deglitch_h);
+
+ writel(0x10, &base->dp_debug_ctl);
+
+ writel(0x0, &base->dp_phy_test);
+
+ writel(0x0, &base->dp_video_fifo_thrd);
+ writel(0x20, &base->dp_audio_margin);
+
+ writel(0x4, &base->m_vid_gen_filter_th);
+ writel(0x2, &base->m_aud_gen_filter_th);
+
+ writel(0x00000101, &base->soc_general_ctl);
+
+ /* Set Analog Parameters */
+ writel(0x10, &base->analog_ctl_1);
+ writel(0x0C, &base->analog_ctl_2);
+ writel(0x85, &base->analog_ctl_3);
+ writel(0x66, &base->pll_filter_ctl_1);
+ writel(0x0, &base->tx_amp_tuning_ctl);
+
+ /* Set interrupt pin assertion polarity as high */
+ writel(INT_POL0 | INT_POL1, &base->int_ctl);
+
+ /* Clear pending regisers */
+ writel(0xff, &base->common_int_sta_1);
+ writel(0x4f, &base->common_int_sta_2);
+ writel(0xe0, &base->common_int_sta_3);
+ writel(0xe7, &base->common_int_sta_4);
+ writel(0x63, &base->dp_int_sta);
+
+ /* 0:mask,1: unmask */
+ writel(0x00, &base->common_int_mask_1);
+ writel(0x00, &base->common_int_mask_2);
+ writel(0x00, &base->common_int_mask_3);
+ writel(0x00, &base->common_int_mask_4);
+ writel(0x00, &base->int_sta_mask);
+}
+
+unsigned int s5p_dp_get_pll_lock_status(struct s5p_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(&dp->base->dp_debug_ctl);
+ if (reg & PLL_LOCK)
+ return PLL_LOCKED;
+ else
+ return PLL_UNLOCKED;
+}
+
+int s5p_dp_init_analog_func(struct s5p_dp_device *dp)
+{
+ u32 reg;
+ u32 start;
+ struct exynos5_dp *base = dp->base;
+
+ writel(0x00, &base->dp_phy_pd);
+
+ reg = PLL_LOCK_CHG;
+ writel(reg, &base->common_int_sta_1);
+
+ clrbits_le32(&base->dp_debug_ctl, (F_PLL_LOCK | PLL_LOCK_CTRL));
+
+ /* Power up PLL */
+ if (s5p_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+
+ clrbits_le32(&base->dp_pll_ctl, DP_PLL_PD);
+
+ start = get_timer(0);
+ while (s5p_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+ if (get_timer(start) > PLL_LOCK_TIMEOUT) {
+ printk(BIOS_ERR, "%s: PLL is not locked\n",
+ __func__);
+ return -1;
+ }
+ }
+ }
+
+ /* Enable Serdes FIFO function and Link symbol clock domain module */
+ clrbits_le32(&base->func_en_2, (SERDES_FIFO_FUNC_EN_N |
+ LS_CLK_DOMAIN_FUNC_EN_N | AUX_FUNC_EN_N));
+ return 0;
+}
+
+void s5p_dp_init_aux(struct s5p_dp_device *dp)
+{
+ u32 reg;
+ struct exynos5_dp *base = dp->base;
+
+ /* Clear inerrupts related to AUX channel */
+ reg = RPLY_RECEIV | AUX_ERR;
+ writel(reg, &base->dp_int_sta);
+
+ /* Disable AUX channel module */
+ setbits_le32(&base->func_en_2, AUX_FUNC_EN_N);
+
+ /* Disable AUX transaction H/W retry */
+ reg = (3 & AUX_BIT_PERIOD_MASK) << AUX_BIT_PERIOD_SHIFT;
+ reg |= (0 & AUX_HW_RETRY_COUNT_MASK) << AUX_HW_RETRY_COUNT_SHIFT;
+ reg |= (AUX_HW_RETRY_INTERVAL_600_US << AUX_HW_RETRY_INTERVAL_SHIFT);
+ writel(reg, &base->aux_hw_retry_ctl) ;
+
+ /* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
+ reg = DEFER_CTRL_EN;
+ reg |= (1 & DEFER_COUNT_MASK) << DEFER_COUNT_SHIFT;
+ writel(reg, &base->aux_ch_defer_dtl);
+
+ /* Enable AUX channel module */
+ clrbits_le32(&base->func_en_2, AUX_FUNC_EN_N);
+}
+
+int s5p_dp_start_aux_transaction(struct s5p_dp_device *dp)
+{
+ int reg;
+ struct exynos5_dp *base = dp->base;
+
+ /* Enable AUX CH operation */
+ setbits_le32(&base->aux_ch_ctl_2, AUX_EN);
+
+ /* Is AUX CH command reply received? */
+ reg = readl(&base->dp_int_sta);
+ while (!(reg & RPLY_RECEIV))
+ reg = readl(&base->dp_int_sta);
+
+ /* Clear interrupt source for AUX CH command reply */
+ writel(RPLY_RECEIV, &base->dp_int_sta);
+
+ /* Clear interrupt source for AUX CH access error */
+ reg = readl(&base->dp_int_sta);
+ if (reg & AUX_ERR) {
+ printk(BIOS_ERR, "%s: AUX_ERR encountered, dp_int_sta: "
+ "0x%02x\n", __func__, reg);
+ writel(AUX_ERR, &base->dp_int_sta);
+ return -1;
+ }
+
+ /* Check AUX CH error access status */
+ reg = readl(&base->dp_int_sta);
+ if ((reg & AUX_STATUS_MASK) != 0) {
+ printk(BIOS_ERR, "AUX CH error happens: %d\n\n",
+ reg & AUX_STATUS_MASK);
+ return -1;
+ }
+
+ return 0;
+}
+
+int s5p_dp_write_byte_to_dpcd(struct s5p_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char data)
+{
+ u32 reg;
+ int i;
+ int retval;
+ struct exynos5_dp *base = dp->base;
+
+ for (i = 0; i < MAX_AUX_RETRY_COUNT; i++) {
+ /* Clear AUX CH data buffer */
+ writel(BUF_CLR, &base->buf_data_ctl);
+
+ /* Select DPCD device address */
+ reg = reg_addr >> AUX_ADDR_7_0_SHIFT;
+ reg &= AUX_ADDR_7_0_MASK;
+ writel(reg, &base->aux_addr_7_0);
+ reg = reg_addr >> AUX_ADDR_15_8_SHIFT;
+ reg &= AUX_ADDR_15_8_MASK;
+ writel(reg, &base->aux_addr_15_8);
+ reg = reg_addr >> AUX_ADDR_19_16_SHIFT;
+ reg &= AUX_ADDR_19_16_MASK;
+ writel(reg, &base->aux_addr_19_16);
+
+ /* Write data buffer */
+ reg = (unsigned int)data;
+ writel(reg, &base->buf_data_0);
+
+ /*
+ * Set DisplayPort transaction and write 1 byte
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
+ writel(reg, &base->aux_ch_ctl_1);
+
+ /* Start AUX transaction */
+ retval = s5p_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+ else
+ printk(BIOS_DEBUG, "Aux Transaction fail!\n");
+ }
+
+ return retval;
+}
+
+int s5p_dp_read_byte_from_dpcd(struct s5p_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char *data)
+{
+ u32 reg;
+ int i;
+ int retval;
+ struct exynos5_dp *base = dp->base;
+
+ for (i = 0; i < MAX_AUX_RETRY_COUNT; i++) {
+ /* Clear AUX CH data buffer */
+ writel(BUF_CLR, &base->buf_data_ctl);
+
+ /* Select DPCD device address */
+ reg = reg_addr >> AUX_ADDR_7_0_SHIFT;
+ reg &= AUX_ADDR_7_0_MASK;
+ writel(reg, &base->aux_addr_7_0);
+ reg = reg_addr >> AUX_ADDR_15_8_SHIFT;
+ reg &= AUX_ADDR_15_8_MASK;
+ writel(reg, &base->aux_addr_15_8);
+ reg = reg_addr >> AUX_ADDR_19_16_SHIFT;
+ reg &= AUX_ADDR_19_16_MASK;
+ writel(reg, &base->aux_addr_19_16);
+
+ /*
+ * Set DisplayPort transaction and read 1 byte
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
+ writel(reg, &base->aux_ch_ctl_1);
+
+ /* Start AUX transaction */
+ retval = s5p_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+ else
+ printk(BIOS_DEBUG, "Aux Transaction fail!\n");
+ }
+
+ /* Read data buffer */
+ if (!retval) {
+ reg = readl(&base->buf_data_0);
+ *data = (unsigned char)(reg & 0xff);
+ }
+
+ return retval;
+}
+
+void s5p_dp_init_video(struct s5p_dp_device *dp)
+{
+ u32 reg;
+ struct exynos5_dp *base = dp->base;
+
+ reg = VSYNC_DET | VID_FORMAT_CHG | VID_CLK_CHG;
+ writel(reg, &base->common_int_sta_1);
+
+ reg = 0x0;
+ writel(reg, &base->sys_ctl_1);
+
+ reg = (4 & CHA_CRI_MASK) << CHA_CRI_SHIFT;
+ reg |= CHA_CTRL;
+ writel(reg, &base->sys_ctl_2);
+
+ reg = 0x0;
+ writel(reg, &base->sys_ctl_3);
+}
+
+void s5p_dp_set_video_color_format(struct s5p_dp_device *dp,
+ unsigned int color_depth,
+ unsigned int color_space,
+ unsigned int dynamic_range,
+ unsigned int coeff)
+{
+ u32 reg;
+ struct exynos5_dp *base = dp->base;
+
+ /* Configure the input color depth, color space, dynamic range */
+ reg = (dynamic_range << IN_D_RANGE_SHIFT) |
+ (color_depth << IN_BPC_SHIFT) |
+ (color_space << IN_COLOR_F_SHIFT);
+ writel(reg, &base->video_ctl_2);
+
+ /* Set Input Color YCbCr Coefficients to ITU601 or ITU709 */
+ reg = readl(&base->video_ctl_3);
+ reg &= ~IN_YC_COEFFI_MASK;
+ if (coeff)
+ reg |= IN_YC_COEFFI_ITU709;
+ else
+ reg |= IN_YC_COEFFI_ITU601;
+ writel(reg, &base->video_ctl_3);
+}
+
+int s5p_dp_is_slave_video_stream_clock_on(struct s5p_dp_device *dp)
+{
+ u32 reg;
+ struct exynos5_dp *base = dp->base;
+
+ reg = readl(&base->sys_ctl_1);
+ writel(reg, &base->sys_ctl_1);
+
+ reg = readl(&base->sys_ctl_1);
+
+ if (!(reg & DET_STA))
+ return -1;
+
+ reg = readl(&base->sys_ctl_2);
+ writel(reg, &base->sys_ctl_2);
+
+ reg = readl(&base->sys_ctl_2);
+
+ if (reg & CHA_STA) {
+ printk(BIOS_DEBUG, "Input stream clk is changing\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+void s5p_dp_set_video_cr_mn(struct s5p_dp_device *dp,
+ enum clock_recovery_m_value_type type,
+ unsigned int m_value,
+ unsigned int n_value)
+{
+ u32 reg;
+ struct exynos5_dp *base = dp->base;
+
+ if (type == REGISTER_M) {
+ setbits_le32(&base->sys_ctl_4, FIX_M_VID);
+
+ reg = m_value >> M_VID_0_VALUE_SHIFT;
+ writel(reg, &base->m_vid_0);
+
+ reg = (m_value >> M_VID_1_VALUE_SHIFT);
+ writel(reg, &base->m_vid_1);
+
+ reg = (m_value >> M_VID_2_VALUE_SHIFT);
+ writel(reg, &base->m_vid_2);
+
+ reg = n_value >> N_VID_0_VALUE_SHIFT;
+ writel(reg, &base->n_vid_0);
+
+ reg = (n_value >> N_VID_1_VALUE_SHIFT);
+ writel(reg, &base->n_vid_1);
+
+ reg = (n_value >> N_VID_2_VALUE_SHIFT);
+ writel(reg, &base->n_vid_2);
+ } else {
+ clrbits_le32(&base->sys_ctl_4, FIX_M_VID);
+
+ writel(0x00, &base->n_vid_0);
+ writel(0x80, &base->n_vid_1);
+ writel(0x00, &base->n_vid_2);
+ }
+}
+
+void s5p_dp_enable_video_master(struct s5p_dp_device *dp)
+{
+ u32 reg;
+ struct exynos5_dp *base = dp->base;
+
+ reg = readl(&base->soc_general_ctl);
+ reg &= ~VIDEO_MODE_MASK;
+ reg |= VIDEO_MODE_SLAVE_MODE;
+ writel(reg, &base->soc_general_ctl);
+}
+
+int s5p_dp_is_video_stream_on(struct s5p_dp_device *dp)
+{
+ u32 reg, i = 0;
+ u32 start;
+ struct exynos5_dp *base = dp->base;
+
+ /* Wait for 4 VSYNC_DET interrupts */
+ start = get_timer(0);
+ do {
+ reg = readl(&base->common_int_sta_1);
+ if (reg & VSYNC_DET) {
+ i++;
+ writel(reg | VSYNC_DET, &base->common_int_sta_1);
+ }
+ if (i == 4)
+ break;
+ } while (get_timer(start) <= STREAM_ON_TIMEOUT);
+
+ if (i != 4) {
+ printk(BIOS_DEBUG, "s5p_dp_is_video_stream_on timeout\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+void s5p_dp_config_video_slave_mode(struct s5p_dp_device *dp,
+ struct video_info *video_info)
+{
+ u32 reg;
+ struct exynos5_dp *base = dp->base;
+
+ reg = readl(&base->func_en_1);
+ reg &= ~(MASTER_VID_FUNC_EN_N|SLAVE_VID_FUNC_EN_N);
+ reg |= MASTER_VID_FUNC_EN_N;
+ writel(reg, &base->func_en_1);
+
+ reg = readl(&base->video_ctl_10);
+ reg &= ~INTERACE_SCAN_CFG;
+ reg |= (video_info->interlaced << 2);
+ writel(reg, &base->video_ctl_10);
+
+ reg = readl(&base->video_ctl_10);
+ reg &= ~VSYNC_POLARITY_CFG;
+ reg |= (video_info->v_sync_polarity << 1);
+ writel(reg, &base->video_ctl_10);
+
+ reg = readl(&base->video_ctl_10);
+ reg &= ~HSYNC_POLARITY_CFG;
+ reg |= (video_info->h_sync_polarity << 0);
+ writel(reg, &base->video_ctl_10);
+
+ reg = AUDIO_MODE_SPDIF_MODE | VIDEO_MODE_SLAVE_MODE;
+ writel(reg, &base->soc_general_ctl);
+}
+
+void s5p_dp_wait_hw_link_training_done(struct s5p_dp_device *dp)
+{
+ u32 reg;
+ struct exynos5_dp *base = dp->base;
+
+ reg = readl(&base->dp_hw_link_training);
+ while (reg & HW_TRAINING_EN)
+ reg = readl(&base->dp_hw_link_training);
+}
diff --git a/src/cpu/samsung/exynos5420/dp.h b/src/cpu/samsung/exynos5420/dp.h
new file mode 100644
index 0000000000..46579b3594
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/dp.h
@@ -0,0 +1,497 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Register map for Exynos5 DP */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_DP_H
+#define CPU_SAMSUNG_EXYNOS5420_DP_H
+
+/* DSIM register map */
+struct exynos5_dp {
+ u8 res1[0x10];
+ u32 dp_tx_version;
+ u32 dp_tx_sw_reset;
+ u32 func_en_1;
+ u32 func_en_2;
+ u32 video_ctl_1;
+ u32 video_ctl_2;
+ u32 video_ctl_3;
+ u32 video_ctl_4;
+ u32 clr_blue_cb;
+ u32 clr_green_y;
+ u32 clr_red_cr;
+ u32 video_ctl_8;
+ u8 res2[0x4];
+ u32 video_ctl_10;
+ u32 total_line_l;
+ u32 total_line_h;
+ u32 active_line_l;
+ u32 active_line_h;
+ u32 v_f_porch;
+ u32 vsync;
+ u32 v_b_porch;
+ u32 total_pixel_l;
+ u32 total_pixel_h;
+ u32 active_pixel_l;
+ u32 active_pixel_h;
+ u32 h_f_porch_l;
+ u32 h_f_porch_h;
+ u32 hsync_l;
+ u32 hysnc_h;
+ u32 h_b_porch_l;
+ u32 h_b_porch_h;
+ u32 vid_status;
+ u32 total_line_sta_l;
+ u32 total_line_sta_h;
+ u32 active_line_sta_l;
+ u32 active_line_sta_h;
+ u32 v_f_porch_sta;
+ u32 vsync_sta;
+ u32 v_b_porch_sta;
+ u32 total_pixel_sta_l;
+ u32 total_pixel_sta_h;
+ u32 active_pixel_sta_l;
+ u32 active_pixel_sta_h;
+ u32 h_f_porch_sta_l;
+ u32 h_f_porch_sta_h;
+ u32 hsync_sta_l;
+ u32 hsync_sta_h;
+ u32 h_b_porch_sta_l;
+ u32 h_b_porch__sta_h;
+ u8 res3[0x288];
+ u32 lane_map;
+ u8 res4[0x10];
+ u32 analog_ctl_1;
+ u32 analog_ctl_2;
+ u32 analog_ctl_3;
+ u32 pll_filter_ctl_1;
+ u32 tx_amp_tuning_ctl;
+ u8 res5[0xc];
+ u32 aux_hw_retry_ctl;
+ u8 res6[0x2c];
+ u32 int_state;
+ u32 common_int_sta_1;
+ u32 common_int_sta_2;
+ u32 common_int_sta_3;
+ u32 common_int_sta_4;
+ u8 res7[0x8];
+ u32 dp_int_sta;
+ u32 common_int_mask_1;
+ u32 common_int_mask_2;
+ u32 common_int_mask_3;
+ u32 common_int_mask_4;
+ u8 res8[0x08];
+ u32 int_sta_mask;
+ u32 int_ctl;
+ u8 res9[0x200];
+ u32 sys_ctl_1;
+ u32 sys_ctl_2;
+ u32 sys_ctl_3;
+ u32 sys_ctl_4;
+ u32 dp_vid_ctl;
+ u8 res10[0x2c];
+ u32 pkt_send_ctl;
+ u8 res11[0x4];
+ u32 dp_hdcp_ctl;
+ u8 res12[0x34];
+ u32 link_bw_set;
+ u32 lane_count_set;
+ u32 dp_training_ptn_set;
+ u32 ln0_link_trn_ctl;
+ u32 ln1_link_trn_ctl;
+ u32 ln2_link_trn_ctl;
+ u32 ln3_link_trn_ctl;
+ u32 dp_dn_spread;
+ u32 dp_hw_link_training;
+ u8 res13[0x1c];
+ u32 dp_debug_ctl;
+ u32 dp_hpd_deglitch_l;
+ u32 dp_hpd_deglitch_h;
+ u8 res14[0x14];
+ u32 dp_link_debug_ctl;
+ u8 res15[0x1c];
+ u32 m_vid_0;
+ u32 m_vid_1;
+ u32 m_vid_2;
+ u32 n_vid_0;
+ u32 n_vid_1;
+ u32 n_vid_2;
+ u32 m_vid_mon;
+ u32 dp_pll_ctl;
+ u32 dp_phy_pd;
+ u32 dp_phy_test;
+ u8 res16[0x8];
+ u32 dp_video_fifo_thrd;
+ u8 res17[0x8];
+ u32 dp_audio_margin;
+ u32 dp_dn_spread_ctl_1;
+ u32 dp_dn_spread_ctl_2;
+ u8 res18[0x18];
+ u32 dp_m_cal_ctl;
+ u32 m_vid_gen_filter_th;
+ u8 res19[0x14];
+ u32 m_aud_gen_filter_th;
+ u32 aux_ch_sta;
+ u32 aux_err_num;
+ u32 aux_ch_defer_dtl;
+ u32 aux_rx_comm;
+ u32 buf_data_ctl;
+ u32 aux_ch_ctl_1;
+ u32 aux_addr_7_0;
+ u32 aux_addr_15_8;
+ u32 aux_addr_19_16;
+ u32 aux_ch_ctl_2;
+ u8 res20[0x18];
+ u32 buf_data_0;
+ u8 res21[0x3c];
+ u32 soc_general_ctl;
+};
+/* DP_TX_SW_RESET */
+#define RESET_DP_TX (1 << 0)
+
+/* DP_FUNC_EN_1 */
+#define MASTER_VID_FUNC_EN_N (1 << 7)
+#define SLAVE_VID_FUNC_EN_N (1 << 5)
+#define AUD_FIFO_FUNC_EN_N (1 << 4)
+#define AUD_FUNC_EN_N (1 << 3)
+#define HDCP_FUNC_EN_N (1 << 2)
+#define CRC_FUNC_EN_N (1 << 1)
+#define SW_FUNC_EN_N (1 << 0)
+
+/* DP_FUNC_EN_2 */
+#define SSC_FUNC_EN_N (1 << 7)
+#define AUX_FUNC_EN_N (1 << 2)
+#define SERDES_FIFO_FUNC_EN_N (1 << 1)
+#define LS_CLK_DOMAIN_FUNC_EN_N (1 << 0)
+
+/* DP_VIDEO_CTL_1 */
+#define VIDEO_EN (1 << 7)
+#define HDCP_VIDEO_MUTE (1 << 6)
+
+/* DP_VIDEO_CTL_1 */
+#define IN_D_RANGE_MASK (1 << 7)
+#define IN_D_RANGE_SHIFT (7)
+#define IN_D_RANGE_CEA (1 << 7)
+#define IN_D_RANGE_VESA (0 << 7)
+#define IN_BPC_MASK (7 << 4)
+#define IN_BPC_SHIFT (4)
+#define IN_BPC_12_BITS (3 << 4)
+#define IN_BPC_10_BITS (2 << 4)
+#define IN_BPC_8_BITS (1 << 4)
+#define IN_BPC_6_BITS (0 << 4)
+#define IN_COLOR_F_MASK (3 << 0)
+#define IN_COLOR_F_SHIFT (0)
+#define IN_COLOR_F_YCBCR444 (2 << 0)
+#define IN_COLOR_F_YCBCR422 (1 << 0)
+#define IN_COLOR_F_RGB (0 << 0)
+
+/* DP_VIDEO_CTL_3 */
+#define IN_YC_COEFFI_MASK (1 << 7)
+#define IN_YC_COEFFI_SHIFT (7)
+#define IN_YC_COEFFI_ITU709 (1 << 7)
+#define IN_YC_COEFFI_ITU601 (0 << 7)
+#define VID_CHK_UPDATE_TYPE_MASK (1 << 4)
+#define VID_CHK_UPDATE_TYPE_SHIFT (4)
+#define VID_CHK_UPDATE_TYPE_1 (1 << 4)
+#define VID_CHK_UPDATE_TYPE_0 (0 << 4)
+
+/* DP_VIDEO_CTL_10 */
+#define FORMAT_SEL (1 << 4)
+#define INTERACE_SCAN_CFG (1 << 2)
+#define VSYNC_POLARITY_CFG (1 << 1)
+#define HSYNC_POLARITY_CFG (1 << 0)
+
+/* DP_LANE_MAP */
+#define LANE3_MAP_LOGIC_LANE_0 (0 << 6)
+#define LANE3_MAP_LOGIC_LANE_1 (1 << 6)
+#define LANE3_MAP_LOGIC_LANE_2 (2 << 6)
+#define LANE3_MAP_LOGIC_LANE_3 (3 << 6)
+#define LANE2_MAP_LOGIC_LANE_0 (0 << 4)
+#define LANE2_MAP_LOGIC_LANE_1 (1 << 4)
+#define LANE2_MAP_LOGIC_LANE_2 (2 << 4)
+#define LANE2_MAP_LOGIC_LANE_3 (3 << 4)
+#define LANE1_MAP_LOGIC_LANE_0 (0 << 2)
+#define LANE1_MAP_LOGIC_LANE_1 (1 << 2)
+#define LANE1_MAP_LOGIC_LANE_2 (2 << 2)
+#define LANE1_MAP_LOGIC_LANE_3 (3 << 2)
+#define LANE0_MAP_LOGIC_LANE_0 (0 << 0)
+#define LANE0_MAP_LOGIC_LANE_1 (1 << 0)
+#define LANE0_MAP_LOGIC_LANE_2 (2 << 0)
+#define LANE0_MAP_LOGIC_LANE_3 (3 << 0)
+
+/* DP_AUX_HW_RETRY_CTL */
+#define AUX_BIT_PERIOD_SHIFT 8
+#define AUX_BIT_PERIOD_MASK 7
+
+#define AUX_HW_RETRY_INTERVAL_SHIFT 3
+#define AUX_HW_RETRY_INTERVAL_600_US 0
+#define AUX_HW_RETRY_INTERVAL_800_US 1
+#define AUX_HW_RETRY_INTERVAL_1000_US 2
+#define AUX_HW_RETRY_INTERVAL_1800_US 3
+#define AUX_HW_RETRY_COUNT_SHIFT 0
+#define AUX_HW_RETRY_COUNT_MASK 7
+
+/* DP_COMMON_INT_STA_1 */
+#define VSYNC_DET (1 << 7)
+#define PLL_LOCK_CHG (1 << 6)
+#define SPDIF_ERR (1 << 5)
+#define SPDIF_UNSTBL (1 << 4)
+#define VID_FORMAT_CHG (1 << 3)
+#define AUD_CLK_CHG (1 << 2)
+#define VID_CLK_CHG (1 << 1)
+#define SW_INT (1 << 0)
+
+/* DP_COMMON_INT_STA_2 */
+#define ENC_EN_CHG (1 << 6)
+#define HW_BKSV_RDY (1 << 3)
+#define HW_SHA_DONE (1 << 2)
+#define HW_AUTH_STATE_CHG (1 << 1)
+#define HW_AUTH_DONE (1 << 0)
+
+/* DP_COMMON_INT_STA_3 */
+#define AFIFO_UNDER (1 << 7)
+#define AFIFO_OVER (1 << 6)
+#define R0_CHK_FLAG (1 << 5)
+
+/* DP_COMMON_INT_STA_4 */
+#define PSR_ACTIVE (1 << 7)
+#define PSR_INACTIVE (1 << 6)
+#define SPDIF_BI_PHASE_ERR (1 << 5)
+#define HOTPLUG_CHG (1 << 2)
+#define HPD_LOST (1 << 1)
+#define PLUG (1 << 0)
+
+/* DP_INT_STA */
+#define INT_HPD (1 << 6)
+#define HW_TRAINING_FINISH (1 << 5)
+#define RPLY_RECEIV (1 << 1)
+#define AUX_ERR (1 << 0)
+
+/* DP_INT_CTL */
+#define INT_POL0 (1 << 0)
+#define INT_POL1 (1 << 1)
+#define SOFT_INT_CTRL (1 << 2)
+
+/* DP_SYS_CTL_1 */
+#define DET_STA (1 << 2)
+#define FORCE_DET (1 << 1)
+#define DET_CTRL (1 << 0)
+
+/* DP_SYS_CTL_2 */
+#define CHA_CRI_SHIFT 4
+#define CHA_CRI_MASK 0xf
+#define CHA_STA (1 << 2)
+#define FORCE_CHA (1 << 1)
+#define CHA_CTRL (1 << 0)
+
+/* DP_SYS_CTL_3 */
+#define HPD_STATUS (1 << 6)
+#define F_HPD (1 << 5)
+#define HPD_CTRL (1 << 4)
+#define HDCP_RDY (1 << 3)
+#define STRM_VALID (1 << 2)
+#define F_VALID (1 << 1)
+#define VALID_CTRL (1 << 0)
+
+/* DP_SYS_CTL_4 */
+#define FIX_M_AUD (1 << 4)
+#define ENHANCED (1 << 3)
+#define FIX_M_VID (1 << 2)
+#define M_VID_UPDATE_CTRL (3 << 0)
+
+/* DP_TRAINING_PTN_SET */
+#define SCRAMBLER_TYPE (1 << 9)
+#define HW_LINK_TRAINING_PATTERN (1 << 8)
+#define SCRAMBLING_DISABLE (1 << 5)
+#define SCRAMBLING_ENABLE (0 << 5)
+#define LINK_QUAL_PATTERN_SET_MASK (3 << 2)
+#define LINK_QUAL_PATTERN_SET_PRBS7 (3 << 2)
+#define LINK_QUAL_PATTERN_SET_D10_2 (1 << 2)
+#define LINK_QUAL_PATTERN_SET_DISABLE (0 << 2)
+#define SW_TRAINING_PATTERN_SET_MASK (3 << 0)
+#define SW_TRAINING_PATTERN_SET_PTN2 (2 << 0)
+#define SW_TRAINING_PATTERN_SET_PTN1 (1 << 0)
+#define SW_TRAINING_PATTERN_SET_NORMAL (0 << 0)
+
+/* DP_LN0_LINK_TRAINING_CTL */
+#define PRE_EMPHASIS_SET_SHIFT (3)
+
+/* DP_DEBUG_CTL */
+#define PLL_LOCK (1 << 4)
+#define F_PLL_LOCK (1 << 3)
+#define PLL_LOCK_CTRL (1 << 2)
+#define PN_INV (1 << 0)
+
+/* DP_M_VID */
+#define M_VID_0_VALUE_SHIFT 0
+#define M_VID_1_VALUE_SHIFT 8
+#define M_VID_2_VALUE_SHIFT 16
+
+/* DP_M_VID */
+#define N_VID_0_VALUE_SHIFT 0
+#define N_VID_1_VALUE_SHIFT 8
+#define N_VID_2_VALUE_SHIFT 16
+
+/* DP_PLL_CTL */
+#define DP_PLL_PD (1 << 7)
+#define DP_PLL_RESET (1 << 6)
+#define DP_PLL_LOOP_BIT_DEFAULT (1 << 4)
+#define DP_PLL_REF_BIT_1_1250V (5 << 0)
+#define DP_PLL_REF_BIT_1_2500V (7 << 0)
+
+/* DP_PHY_PD */
+#define DP_PHY_PD (1 << 5)
+#define AUX_PD (1 << 4)
+#define CH3_PD (1 << 3)
+#define CH2_PD (1 << 2)
+#define CH1_PD (1 << 1)
+#define CH0_PD (1 << 0)
+
+/* DP_PHY_TEST */
+#define MACRO_RST (1 << 5)
+#define CH1_TEST (1 << 1)
+#define CH0_TEST (1 << 0)
+
+/* DP_AUX_CH_STA */
+#define AUX_BUSY (1 << 4)
+#define AUX_STATUS_MASK (0xf << 0)
+
+/* DP_AUX_CH_DEFER_CTL */
+#define DEFER_CTRL_EN (1 << 7)
+#define DEFER_COUNT_SHIFT 0
+#define DEFER_COUNT_MASK 0x7f
+
+/* DP_AUX_RX_COMM */
+#define AUX_RX_COMM_I2C_DEFER (2 << 2)
+#define AUX_RX_COMM_AUX_DEFER (2 << 0)
+
+/* DP_BUFFER_DATA_CTL */
+#define BUF_CLR (1 << 7)
+
+/* Maximum number of tries for Aux Transaction */
+#define MAX_AUX_RETRY_COUNT 10
+
+/* DP_AUX_CH_CTL_1 */
+#define AUX_LENGTH_SHIFT 4
+#define AUX_LENGTH_MASK 0xf
+
+#define AUX_TX_COMM_MASK (0xf << 0)
+#define AUX_TX_COMM_DP_TRANSACTION (1 << 3)
+#define AUX_TX_COMM_I2C_TRANSACTION (0 << 3)
+#define AUX_TX_COMM_MOT (1 << 2)
+#define AUX_TX_COMM_WRITE (0 << 0)
+#define AUX_TX_COMM_READ (1 << 0)
+
+/* DP_AUX_ADDR_7_0 */
+#define AUX_ADDR_7_0_SHIFT 0
+#define AUX_ADDR_7_0_MASK 0xff
+
+/* DP_AUX_ADDR_15_8 */
+#define AUX_ADDR_15_8_SHIFT 8
+#define AUX_ADDR_15_8_MASK 0xff
+
+/* DP_AUX_ADDR_19_16 */
+#define AUX_ADDR_19_16_SHIFT 16
+#define AUX_ADDR_19_16_MASK 0x0f
+
+/* DP_AUX_CH_CTL_2 */
+#define ADDR_ONLY (1 << 1)
+#define AUX_EN (1 << 0)
+
+/* DP_SOC_GENERAL_CTL */
+#define AUDIO_MODE_SPDIF_MODE (1 << 8)
+#define AUDIO_MODE_MASTER_MODE (0 << 8)
+#define MASTER_VIDEO_INTERLACE_EN (1 << 4)
+#define VIDEO_MASTER_CLK_SEL (1 << 2)
+#define VIDEO_MASTER_MODE_EN (1 << 1)
+#define VIDEO_MODE_MASK (1 << 0)
+#define VIDEO_MODE_SLAVE_MODE (1 << 0)
+#define VIDEO_MODE_MASTER_MODE (0 << 0)
+
+#define HW_TRAINING_ERROR_CODE (7<<4)
+#define HW_TRAINING_EN (1<<0)
+
+/* I2C EDID Chip ID, Slave Address */
+#define I2C_EDID_DEVICE_ADDR 0x50
+#define I2C_E_EDID_DEVICE_ADDR 0x30
+
+#define EDID_BLOCK_LENGTH 0x80
+#define EDID_HEADER_PATTERN 0x00
+#define EDID_EXTENSION_FLAG 0x7e
+#define EDID_CHECKSUM 0x7f
+
+/* Definition for DPCD Register */
+#define DPCD_ADDR_DPCD_REV 0x0000
+#define DPCD_ADDR_MAX_LINK_RATE 0x0001
+#define DPCD_ADDR_MAX_LANE_COUNT 0x0002
+#define DPCD_ADDR_LINK_BW_SET 0x0100
+#define DPCD_ADDR_LANE_COUNT_SET 0x0101
+#define DPCD_ADDR_TRAINING_PATTERN_SET 0x0102
+#define DPCD_ADDR_TRAINING_LANE0_SET 0x0103
+#define DPCD_ADDR_LANE0_1_STATUS 0x0202
+#define DPCD_ADDR_LANE_ALIGN__STATUS_UPDATED 0x0204
+#define DPCD_ADDR_ADJUST_REQUEST_LANE0_1 0x0206
+#define DPCD_ADDR_ADJUST_REQUEST_LANE2_3 0x0207
+#define DPCD_ADDR_TEST_REQUEST 0x0218
+#define DPCD_ADDR_TEST_RESPONSE 0x0260
+#define DPCD_ADDR_TEST_EDID_CHECKSUM 0x0261
+#define DPCD_ADDR_SINK_POWER_STATE 0x0600
+
+/* DPCD_ADDR_MAX_LANE_COUNT */
+#define DPCD_MAX_LANE_COUNT_MASK 0x1f
+
+/* DPCD_ADDR_LANE_COUNT_SET */
+#define DPCD_ENHANCED_FRAME_EN (1 << 7)
+#define DPCD_LANE_COUNT_SET_MASK 0x1f
+
+/* DPCD_ADDR_TRAINING_PATTERN_SET */
+#define DPCD_SCRAMBLING_DISABLED (1 << 5)
+#define DPCD_SCRAMBLING_ENABLED (0 << 5)
+#define DPCD_TRAINING_PATTERN_2 (2 << 0)
+#define DPCD_TRAINING_PATTERN_1 (1 << 0)
+#define DPCD_TRAINING_PATTERN_DISABLED (0 << 0)
+
+/* DPCD_ADDR_LANE0_1_STATUS */
+#define DPCD_LANE_SYMBOL_LOCKED (1 << 2)
+#define DPCD_LANE_CHANNEL_EQ_DONE (1 << 1)
+#define DPCD_LANE_CR_DONE (1 << 0)
+#define DPCD_CHANNEL_EQ_BITS (DPCD_LANE_CR_DONE | \
+ DPCD_LANE_CHANNEL_EQ_DONE | \
+ DPCD_LANE_SYMBOL_LOCKED)
+
+/* DPCD_ADDR_LANE_ALIGN__STATUS_UPDATED */
+#define DPCD_LINK_STATUS_UPDATED (1 << 7)
+#define DPCD_DOWNSTREAM_PORT_STATUS_CHANGED (1 << 6)
+#define DPCD_INTERLANE_ALIGN_DONE (1 << 0)
+
+/* DPCD_ADDR_TEST_REQUEST */
+#define DPCD_TEST_EDID_READ (1 << 2)
+
+/* DPCD_ADDR_TEST_RESPONSE */
+#define DPCD_TEST_EDID_CHECKSUM_WRITE (1 << 2)
+
+/* DPCD_ADDR_SINK_POWER_STATE */
+#define DPCD_SET_POWER_STATE_D0 (1 << 0)
+#define DPCD_SET_POWER_STATE_D4 (2 << 0)
+
+/* Allow DP Gating clock and set FIMD source to 267 Mhz for DP */
+void clock_init_dp_clock(void);
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/dsim.h b/src/cpu/samsung/exynos5420/dsim.h
new file mode 100644
index 0000000000..25015a26ad
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/dsim.h
@@ -0,0 +1,109 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Register map for Exynos5 MIPI-DSIM */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_DSIM_H
+#define CPU_SAMSUNG_EXYNOS5420_DSIM_H
+
+/* DSIM register map */
+struct exynos5_dsim {
+ unsigned int status;
+ unsigned int swrst;
+ unsigned int clkctrl;
+ unsigned int timeout;
+ unsigned int config;
+ unsigned int escmode;
+ unsigned int mdresol;
+ unsigned int mvporch;
+ unsigned int mhporch;
+ unsigned int msync;
+ unsigned int sdresol;
+ unsigned int intsrc;
+ unsigned int intmsk;
+ unsigned int pkthdr;
+ unsigned int payload;
+ unsigned int rxfifo;
+ unsigned int res1;
+ unsigned int fifoctrl;
+ unsigned int res2;
+ unsigned int pllctrl;
+ unsigned int plltmr;
+ unsigned int phyacchr;
+ unsigned int phyacchr1;
+};
+
+#define ENABLE 1
+#define DISABLE 0
+
+#define DSIM_SWRST (1 << 0)
+#define NUM_OF_DAT_LANE_IS_FOUR (3 << 5)
+#define DATA_LANE_0_EN (1 << 0)
+#define DATA_LANE_1_EN (1 << 1)
+#define DATA_LANE_2_EN (1 << 2)
+#define DATA_LANE_3_EN (1 << 3)
+#define CLK_LANE_EN (1 << 4)
+#define ENABLE_ALL_DATA_LANE DATA_LANE_0_EN | \
+ DATA_LANE_1_EN | \
+ DATA_LANE_2_EN | \
+ DATA_LANE_3_EN
+#define MAIN_PIX_FORMAT_OFFSET 12
+#define RGB_565_16_BIT 0x4
+#define VIDEO_MODE (1 << 25)
+#define BURST_MODE (1 << 26)
+
+
+#define DSIM_PHYACCHR_AFC_EN (1 << 14)
+#define DSIM_PHYACCHR_AFC_CTL_OFFSET 5
+
+#define DSIM_PLLCTRL_PMS_OFFSET 1
+#define DSIM_FREQ_BAND_OFFSET 24
+
+#define LANE_ESC_CLK_EN_ALL (0x1f << 19)
+#define BYTE_CLK_EN (1 << 24)
+#define DSIM_ESC_CLK_EN (1 << 28)
+#define TXREQUEST_HS_CLK_ON (1 << 31)
+
+#define LP_MODE_ENABLE (1 << 7)
+#define STOP_STATE_CNT_OFFSET 21
+
+#define MAIN_VBP_OFFSET 0
+#define STABLE_VFP_OFFSET 16
+#define CMD_ALLOW_OFFSET 28
+
+#define MAIN_HBP_OFFSET 0
+#define MAIN_HFP_OFFSET 16
+
+#define MAIN_HSA_OFFSET 0
+#define MAIN_VSA_OFFSET 22
+
+#define MAIN_STANDBY (1 << 31)
+#define MAIN_VRESOL_OFFSET 16
+#define MAIN_HRESOL_OFFSET 0
+
+#define SFR_FIFO_EMPTY (1 << 29)
+
+#define DSIM_PLL_EN_SHIFT (1 << 23)
+#define PLL_STABLE (1 << 31)
+
+#define DSIM_STOP_STATE_DAT(x) (((x) & 0xf) << 0)
+#define DSIM_STOP_STATE_CLK (1 << 8)
+#define DSIM_TX_READY_HS_CLK (1 << 10)
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/fb.c b/src/cpu/samsung/exynos5420/fb.c
new file mode 100644
index 0000000000..d4c3d447bd
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/fb.c
@@ -0,0 +1,597 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* LCD driver for Exynos */
+
+#include <arch/io.h>
+#include <stdlib.h>
+#include <string.h>
+#include <timer.h>
+#include <delay.h>
+#include <console/console.h>
+#include "timer.h"
+#include "cpu.h"
+#include "power.h"
+#include "sysreg.h"
+#include <drivers/maxim/max77686/max77686.h>
+
+#include "device/i2c.h"
+#include "i2c.h"
+#include "fimd.h"
+#include "dp.h"
+#include "dp-core.h"
+
+/*
+ * Here is the rough outline of how we bring up the display:
+ * 1. Upon power-on Sink generates a hot plug detection pulse thru HPD
+ * 2. Source determines video mode by reading DPCD receiver capability field
+ * (DPCD 00000h to 0000Dh) including eDP CP capability register (DPCD
+ * 0000Dh).
+ * 3. Sink replies DPCD receiver capability field.
+ * 4. Source starts EDID read thru I2C-over-AUX.
+ * 5. Sink replies EDID thru I2C-over-AUX.
+ * 6. Source determines link configuration, such as MAX_LINK_RATE and
+ * MAX_LANE_COUNT. Source also determines which type of eDP Authentication
+ * method to use and writes DPCD link configuration field (DPCD 00100h to
+ * 0010Ah) including eDP configuration set (DPCD 0010Ah).
+ * 7. Source starts link training. Sink does clock recovery and equalization.
+ * 8. Source reads DPCD link status field (DPCD 00200h to 0020Bh).
+ * 9. Sink replies DPCD link status field. If main link is not stable, Source
+ * repeats Step 7.
+ * 10. Source sends MSA (Main Stream Attribute) data. Sink extracts video
+ * parameters and recovers stream clock.
+ * 11. Source sends video data.
+ */
+
+/* To help debug any init errors here, define a list of possible errors */
+enum {
+ ERR_PLL_NOT_UNLOCKED = 2,
+ ERR_VIDEO_CLOCK_BAD,
+ ERR_VIDEO_STREAM_BAD,
+ ERR_DPCD_READ_ERROR1, /* 5 */
+
+ ERR_DPCD_WRITE_ERROR1,
+ ERR_DPCD_READ_ERROR2,
+ ERR_DPCD_WRITE_ERROR2,
+ ERR_INVALID_LANE,
+ ERR_PLL_NOT_LOCKED, /* 10 */
+
+ ERR_PRE_EMPHASIS_LEVELS,
+ ERR_LINK_RATE_ABNORMAL,
+ ERR_MAX_LANE_COUNT_ABNORMAL,
+ ERR_LINK_TRAINING_FAILURE,
+ ERR_MISSING_DP_BASE, /* 15 */
+
+ ERR_NO_FDT_NODE,
+};
+/* ok, this is stupid, but we're going to leave the variables in here until we
+ * know it works. One cleanup task at a time.
+ */
+enum stage_t {
+ STAGE_START = 0,
+ STAGE_LCD_VDD,
+ STAGE_BRIDGE_SETUP,
+ STAGE_BRIDGE_INIT,
+ STAGE_BRIDGE_RESET,
+ STAGE_HOTPLUG,
+ STAGE_DP_CONTROLLER,
+ STAGE_BACKLIGHT_VDD,
+ STAGE_BACKLIGHT_PWM,
+ STAGE_BACKLIGHT_EN,
+ STAGE_DONE,
+};
+
+int lcd_line_length;
+int lcd_color_fg;
+int lcd_color_bg;
+
+void *lcd_console_address; /* Start of console buffer */
+
+short console_col;
+short console_row;
+
+/* Bypass FIMD of DISP1_BLK */
+static void fimd_bypass(void)
+{
+ struct exynos5_sysreg *sysreg = samsung_get_base_sysreg();
+
+ setbits_le32(&sysreg->disp1blk_cfg, FIMDBYPASS_DISP1);
+ sysreg->disp1blk_cfg &= ~FIMDBYPASS_DISP1;
+}
+
+/* Calculate the size of Framebuffer from the resolution */
+static u32 calc_fbsize(vidinfo_t *panel_info)
+{
+ /* They had PAGE_SIZE here instead of 4096.
+ * but that's a totally arbitrary number -- everything nowadays
+ * has lots of page sizes.
+ * So keep it obvious.
+ */
+ return ALIGN((panel_info->vl_col * panel_info->vl_row *
+ ((1<<panel_info->vl_bpix) / 8)), 4096);
+}
+
+/*
+ * Initialize display controller.
+ *
+ * @param lcdbase pointer to the base address of framebuffer.
+ * @pd pointer to the main panel_data structure
+ */
+void fb_init(vidinfo_t *panel_info, void *lcdbase,
+ struct exynos5_fimd_panel *pd)
+{
+ unsigned int val;
+ u32 fbsize;
+ struct exynos5_fimd *fimd = samsung_get_base_fimd();
+ struct exynos5_disp_ctrl *disp_ctrl = samsung_get_base_disp_ctrl();
+
+ writel(pd->ivclk | pd->fixvclk, &disp_ctrl->vidcon1);
+ val = ENVID_ON | ENVID_F_ON | (pd->clkval_f << CLKVAL_F_OFFSET);
+ writel(val, &fimd->vidcon0);
+
+ val = (pd->vsync << VSYNC_PULSE_WIDTH_OFFSET) |
+ (pd->lower_margin << V_FRONT_PORCH_OFFSET) |
+ (pd->upper_margin << V_BACK_PORCH_OFFSET);
+ writel(val, &disp_ctrl->vidtcon0);
+
+ val = (pd->hsync << HSYNC_PULSE_WIDTH_OFFSET) |
+ (pd->right_margin << H_FRONT_PORCH_OFFSET) |
+ (pd->left_margin << H_BACK_PORCH_OFFSET);
+ writel(val, &disp_ctrl->vidtcon1);
+
+ val = ((pd->xres - 1) << HOZVAL_OFFSET) |
+ ((pd->yres - 1) << LINEVAL_OFFSET);
+ writel(val, &disp_ctrl->vidtcon2);
+
+ writel((unsigned int)lcdbase, &fimd->vidw00add0b0);
+
+ fbsize = calc_fbsize(panel_info);
+ writel((unsigned int)lcdbase + fbsize, &fimd->vidw00add1b0);
+
+ writel(pd->xres * 2, &fimd->vidw00add2);
+
+ val = ((pd->xres - 1) << OSD_RIGHTBOTX_F_OFFSET);
+ val |= ((pd->yres - 1) << OSD_RIGHTBOTY_F_OFFSET);
+ writel(val, &fimd->vidosd0b);
+ writel(pd->xres * pd->yres, &fimd->vidosd0c);
+
+ setbits_le32(&fimd->shadowcon, CHANNEL0_EN);
+
+ val = BPPMODE_F_RGB_16BIT_565 << BPPMODE_F_OFFSET;
+ val |= ENWIN_F_ENABLE | HALF_WORD_SWAP_EN;
+ writel(val, &fimd->wincon0);
+
+ /* DPCLKCON_ENABLE */
+ writel(1 << 1, &fimd->dpclkcon);
+}
+
+#ifdef UNUSED_CODE
+void exynos_fimd_disable(void)
+{
+ struct exynos5_fimd *fimd = samsung_get_base_fimd();
+
+ writel(0, &fimd->wincon0);
+ clrbits_le32(&fimd->shadowcon, CHANNEL0_EN);
+}
+#endif
+
+/*
+ * Configure DP in slave mode and wait for video stream.
+ *
+ * param dp pointer to main s5p-dp structure
+ * param video_info pointer to main video_info structure.
+ * return status
+ */
+static int s5p_dp_config_video(struct s5p_dp_device *dp,
+ struct video_info *video_info)
+{
+ int timeout = 0;
+ struct exynos5_dp *base = dp->base;
+ struct mono_time start, current, end;
+ s5p_dp_config_video_slave_mode(dp, video_info);
+
+ s5p_dp_set_video_color_format(dp, video_info->color_depth,
+ video_info->color_space,
+ video_info->dynamic_range,
+ video_info->ycbcr_coeff);
+
+ if (s5p_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+ printk(BIOS_DEBUG, "PLL is not locked yet.\n");
+ return -ERR_PLL_NOT_UNLOCKED;
+ }
+
+ timer_monotonic_get(&start);
+ end = current = start;
+ mono_time_add_usecs(&end, STREAM_ON_TIMEOUT * USECS_PER_MSEC);
+ do {
+ if (s5p_dp_is_slave_video_stream_clock_on(dp) == 0) {
+ timeout++;
+ break;
+ }
+ timer_monotonic_get(&current);
+ } while (mono_time_before(&current, &end));
+
+ if (!timeout) {
+ printk(BIOS_ERR, "Video Clock Not ok after %ldus.\n",
+ mono_time_diff_microseconds(&start, &end));
+ return -ERR_VIDEO_CLOCK_BAD;
+ }
+
+ /* Set to use the register calculated M/N video */
+ s5p_dp_set_video_cr_mn(dp, CALCULATED_M, 0, 0);
+
+ clrbits_le32(&base->video_ctl_10, FORMAT_SEL);
+
+ /* Disable video mute */
+ clrbits_le32(&base->video_ctl_1, HDCP_VIDEO_MUTE);
+
+ /* Configure video slave mode */
+ s5p_dp_enable_video_master(dp);
+
+ /* Enable video */
+ setbits_le32(&base->video_ctl_1, VIDEO_EN);
+ timeout = s5p_dp_is_video_stream_on(dp);
+
+ if (timeout) {
+ printk(BIOS_DEBUG, "Video Stream Not on\n");
+ return -ERR_VIDEO_STREAM_BAD;
+ }
+
+ return 0;
+}
+
+/*
+ * Set DP to enhanced mode. We use this for EVT1
+ * param dp pointer to main s5p-dp structure
+ * return status
+ */
+static int s5p_dp_enable_rx_to_enhanced_mode(struct s5p_dp_device *dp)
+{
+ u8 data;
+
+ if (s5p_dp_read_byte_from_dpcd(dp, DPCD_ADDR_LANE_COUNT_SET, &data)) {
+ printk(BIOS_DEBUG, "DPCD read error\n");
+ return -ERR_DPCD_READ_ERROR1;
+ }
+ if (s5p_dp_write_byte_to_dpcd(dp, DPCD_ADDR_LANE_COUNT_SET,
+ DPCD_ENHANCED_FRAME_EN |
+ (data & DPCD_LANE_COUNT_SET_MASK))) {
+ printk(BIOS_DEBUG, "DPCD write error\n");
+ return -ERR_DPCD_WRITE_ERROR1;
+ }
+
+ return 0;
+}
+
+/*
+ * Enable scrambles mode. We use this for EVT1
+ * param dp pointer to main s5p-dp structure
+ * return status
+ */
+static int s5p_dp_enable_scramble(struct s5p_dp_device *dp)
+{
+ u8 data;
+ struct exynos5_dp *base = dp->base;
+
+ clrbits_le32(&base->dp_training_ptn_set, SCRAMBLING_DISABLE);
+
+ if (s5p_dp_read_byte_from_dpcd(dp, DPCD_ADDR_TRAINING_PATTERN_SET,
+ &data)) {
+ printk(BIOS_DEBUG, "DPCD read error\n");
+ return -ERR_DPCD_READ_ERROR2;
+ }
+
+ if (s5p_dp_write_byte_to_dpcd(dp, DPCD_ADDR_TRAINING_PATTERN_SET,
+ (u8)(data & ~DPCD_SCRAMBLING_DISABLED))) {
+ printk(BIOS_DEBUG, "DPCD write error\n");
+ return -ERR_DPCD_WRITE_ERROR2;
+ }
+
+ return 0;
+}
+
+/*
+ * Reset DP and prepare DP for init training
+ * param dp pointer to main s5p-dp structure
+ */
+static int s5p_dp_init_dp(struct s5p_dp_device *dp)
+{
+ int ret, i;
+ struct exynos5_dp *base = dp->base;
+
+ for (i = 0; i < DP_INIT_TRIES; i++) {
+ s5p_dp_reset(dp);
+
+ /* SW defined function Normal operation */
+ clrbits_le32(&base->func_en_1, SW_FUNC_EN_N);
+
+ ret = s5p_dp_init_analog_func(dp);
+ if (!ret)
+ break;
+
+ udelay(5000);
+ printk(BIOS_DEBUG, "LCD retry init, attempt=%d ret=%d\n", i, ret);
+ }
+ if (i == DP_INIT_TRIES) {
+ printk(BIOS_DEBUG, "LCD initialization failed, ret=%d\n", ret);
+ return ret;
+ }
+
+ s5p_dp_init_aux(dp);
+
+ return ret;
+}
+
+/*
+ * Set pre-emphasis level
+ * param dp pointer to main s5p-dp structure
+ * param pre_emphasis pre-emphasis level
+ * param lane lane number(0 - 3)
+ * return status
+ */
+static int s5p_dp_set_lane_lane_pre_emphasis(struct s5p_dp_device *dp,
+ int pre_emphasis, int lane)
+{
+ u32 reg;
+ struct exynos5_dp *base = dp->base;
+
+ reg = pre_emphasis << PRE_EMPHASIS_SET_SHIFT;
+ switch (lane) {
+ case 0:
+ writel(reg, &base->ln0_link_trn_ctl);
+ break;
+ case 1:
+ writel(reg, &base->ln1_link_trn_ctl);
+ break;
+
+ case 2:
+ writel(reg, &base->ln2_link_trn_ctl);
+ break;
+
+ case 3:
+ writel(reg, &base->ln3_link_trn_ctl);
+ break;
+ default:
+ printk(BIOS_DEBUG, "%s: Invalid lane %d\n", __func__, lane);
+ return -ERR_INVALID_LANE;
+ }
+ return 0;
+}
+
+/*
+ * Read supported bandwidth type
+ * param dp pointer to main s5p-dp structure
+ * param bandwidth pointer to variable holding bandwidth type
+ */
+static void s5p_dp_get_max_rx_bandwidth(struct s5p_dp_device *dp,
+ u8 *bandwidth)
+{
+ u8 data;
+
+ /*
+ * For DP rev.1.1, Maximum link rate of Main Link lanes
+ * 0x06 = 1.62 Gbps, 0x0a = 2.7 Gbps
+ */
+ s5p_dp_read_byte_from_dpcd(dp, DPCD_ADDR_MAX_LINK_RATE, &data);
+ *bandwidth = data;
+}
+
+/*
+ * Reset DP and prepare DP for init training
+ * param dp pointer to main s5p-dp structure
+ * param lane_count pointer to variable holding no of lanes
+ */
+static void s5p_dp_get_max_rx_lane_count(struct s5p_dp_device *dp,
+ u8 *lane_count)
+{
+ u8 data;
+
+ /*
+ * For DP rev.1.1, Maximum number of Main Link lanes
+ * 0x01 = 1 lane, 0x02 = 2 lanes, 0x04 = 4 lanes
+ */
+ s5p_dp_read_byte_from_dpcd(dp, DPCD_ADDR_MAX_LANE_COUNT, &data);
+ *lane_count = data & DPCD_MAX_LANE_COUNT_MASK;
+}
+
+/*
+ * DP H/w Link Training. Set DPCD link rate and bandwidth.
+ * param dp pointer to main s5p-dp structure
+ * param max_lane No of lanes
+ * param max_rate bandwidth
+ * return status
+ */
+static int s5p_dp_hw_link_training(struct s5p_dp_device *dp,
+ unsigned int max_lane,
+ unsigned int max_rate)
+{
+ int pll_is_locked = 0;
+ u32 data;
+ u32 start;
+ int lane;
+ struct exynos5_dp *base = dp->base;
+
+ /* Stop Video */
+ clrbits_le32(&base->video_ctl_1, VIDEO_EN);
+
+ start = get_timer(0);
+ while ((pll_is_locked = s5p_dp_get_pll_lock_status(dp)) == PLL_UNLOCKED) {
+ if (get_timer(start) > PLL_LOCK_TIMEOUT) {
+ /* Ignore this error, and try to continue */
+ printk(BIOS_ERR, "PLL is not locked yet.\n");
+ break;
+ }
+ }
+ printk(BIOS_SPEW, "PLL is %slocked\n",
+ pll_is_locked == PLL_LOCKED ? "": "not ");
+ /* Reset Macro */
+ setbits_le32(&base->dp_phy_test, MACRO_RST);
+
+ /* 10 us is the minimum reset time. */
+ udelay(10);
+
+ clrbits_le32(&base->dp_phy_test, MACRO_RST);
+
+ /* Set TX pre-emphasis to minimum */
+ for (lane = 0; lane < max_lane; lane++)
+ if (s5p_dp_set_lane_lane_pre_emphasis(dp,
+ PRE_EMPHASIS_LEVEL_0, lane)) {
+ printk(BIOS_DEBUG, "Unable to set pre emphasis level\n");
+ return -ERR_PRE_EMPHASIS_LEVELS;
+ }
+
+ /* All DP analog module power up */
+ writel(0x00, &base->dp_phy_pd);
+
+ /* Initialize by reading RX's DPCD */
+ s5p_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate);
+ s5p_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
+
+ printk(BIOS_SPEW, "%s: rate 0x%x, lane_count %d\n", __func__,
+ dp->link_train.link_rate, dp->link_train.lane_count);
+
+ if ((dp->link_train.link_rate != LINK_RATE_1_62GBPS) &&
+ (dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
+ printk(BIOS_DEBUG, "Rx Max Link Rate is abnormal :%x !\n",
+ dp->link_train.link_rate);
+ /* Not Retrying */
+ return -ERR_LINK_RATE_ABNORMAL;
+ }
+
+ if (dp->link_train.lane_count == 0) {
+ printk(BIOS_DEBUG, "Rx Max Lane count is abnormal :%x !\n",
+ dp->link_train.lane_count);
+ /* Not retrying */
+ return -ERR_MAX_LANE_COUNT_ABNORMAL;
+ }
+
+ /* Setup TX lane count & rate */
+ if (dp->link_train.lane_count > max_lane)
+ dp->link_train.lane_count = max_lane;
+ if (dp->link_train.link_rate > max_rate)
+ dp->link_train.link_rate = max_rate;
+
+ /* Set link rate and count as you want to establish*/
+ writel(dp->link_train.lane_count, &base->lane_count_set);
+ writel(dp->link_train.link_rate, &base->link_bw_set);
+
+ /* Set sink to D0 (Sink Not Ready) mode. */
+ s5p_dp_write_byte_to_dpcd(dp, DPCD_ADDR_SINK_POWER_STATE,
+ DPCD_SET_POWER_STATE_D0);
+
+ /* Start HW link training */
+ writel(HW_TRAINING_EN, &base->dp_hw_link_training);
+
+ /* Wait until HW link training done */
+ s5p_dp_wait_hw_link_training_done(dp);
+
+ /* Get hardware link training status */
+ data = readl(&base->dp_hw_link_training);
+ printk(BIOS_SPEW, "hardware link training status: 0x%08x\n", data);
+ if (data != 0) {
+ printk(BIOS_ERR, " H/W link training failure: 0x%x\n", data);
+ return -ERR_LINK_TRAINING_FAILURE;
+ }
+
+ /* Get Link Bandwidth */
+ data = readl(&base->link_bw_set);
+
+ dp->link_train.link_rate = data;
+
+ data = readl(&base->lane_count_set);
+ dp->link_train.lane_count = data;
+ printk(BIOS_SPEW, "Done training: Link bandwidth: 0x%x, lane_count: %d\n",
+ dp->link_train.link_rate, data);
+
+ return 0;
+}
+
+/*
+ * Initialize DP display
+ */
+int dp_controller_init(struct s5p_dp_device *dp_device)
+{
+ int ret;
+ struct s5p_dp_device *dp = dp_device;
+ struct exynos5_dp *base;
+
+ clock_init_dp_clock();
+
+ power_enable_dp_phy();
+ ret = s5p_dp_init_dp(dp);
+ if (ret) {
+ printk(BIOS_ERR, "%s: Could not initialize dp\n", __func__);
+ return ret;
+ }
+
+ ret = s5p_dp_hw_link_training(dp, dp->video_info->lane_count,
+ dp->video_info->link_rate);
+ if (ret) {
+ printk(BIOS_ERR, "unable to do link train\n");
+ return ret;
+ }
+ /* Minimum delay after H/w Link training */
+ udelay(1000);
+
+ ret = s5p_dp_enable_scramble(dp);
+ if (ret) {
+ printk(BIOS_ERR, "unable to set scramble mode\n");
+ return ret;
+ }
+
+ ret = s5p_dp_enable_rx_to_enhanced_mode(dp);
+ if (ret) {
+ printk(BIOS_ERR, "unable to set enhanced mode\n");
+ return ret;
+ }
+
+
+ base = dp->base;
+ /* Enable enhanced mode */
+ setbits_le32(&base->sys_ctl_4, ENHANCED);
+
+ writel(dp->link_train.lane_count, &base->lane_count_set);
+ writel(dp->link_train.link_rate, &base->link_bw_set);
+
+ s5p_dp_init_video(dp);
+ ret = s5p_dp_config_video(dp, dp->video_info);
+ if (ret) {
+ printk(BIOS_ERR, "unable to config video\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+/**
+ * Init the LCD controller
+ *
+ * @param lcdbase Base address of LCD frame buffer
+ * @return 0 if ok, -ve error code on error
+ */
+int lcd_ctrl_init(vidinfo_t *panel_info,
+ struct exynos5_fimd_panel *panel_data, void *lcdbase)
+{
+ int ret = 0;
+
+ fimd_bypass();
+ fb_init(panel_info, lcdbase, panel_data);
+ return ret;
+}
diff --git a/src/cpu/samsung/exynos5420/fimd.h b/src/cpu/samsung/exynos5420/fimd.h
new file mode 100644
index 0000000000..661ed9ec6f
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/fimd.h
@@ -0,0 +1,138 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Register map for Exynos5 FIMD */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_FIMD_H
+#define CPU_SAMSUNG_EXYNOS5420_FIMD_H
+
+/* FIMD register map */
+struct exynos5_fimd {
+ /* This is an incomplete list. Add registers as and when required */
+ unsigned int vidcon0;
+ unsigned char res1[0x1c];
+ unsigned int wincon0;
+ unsigned int wincon1;
+ unsigned int wincon2;
+ unsigned int wincon3;
+ unsigned int wincon4;
+ unsigned int shadowcon;
+ unsigned char res2[0x8];
+ unsigned int vidosd0a;
+ unsigned int vidosd0b;
+ unsigned int vidosd0c;
+ unsigned char res3[0x54];
+ unsigned int vidw00add0b0;
+ unsigned char res4[0x2c];
+ unsigned int vidw00add1b0;
+ unsigned char res5[0x2c];
+ unsigned int vidw00add2;
+ unsigned char res6[0x3c];
+ unsigned int w1keycon0;
+ unsigned int w1keycon1;
+ unsigned int w2keycon0;
+ unsigned int w2keycon1;
+ unsigned int w3keycon0;
+ unsigned int w3keycon1;
+ unsigned int w4keycon0;
+ unsigned int w4keycon1;
+ unsigned char res7[0x20];
+ unsigned int win0map;
+ unsigned char res8[0xdc];
+ unsigned int blendcon;
+ unsigned char res9[0x18];
+ unsigned int dpclkcon;
+};
+
+#define W0_SHADOW_PROTECT (0x1 << 10)
+#define COMPKEY_F 0xffffff
+#define ENVID_F_ON (0x1 << 0)
+#define ENVID_ON (0x1 << 1)
+#define CLKVAL_F 0xb
+#define CLKVAL_F_OFFSET 6
+
+/*
+ * Structure containing display panel specific data for FIMD
+ */
+struct exynos5_fimd_panel {
+ unsigned int is_dp:1; /* Display Panel interface is eDP */
+ unsigned int is_mipi:1; /* Display Panel interface is MIPI */
+ unsigned int fixvclk:2; /* VCLK hold scheme at data underflow */
+
+ /*
+ * Polarity of the VCLK active edge
+ * 0-falling
+ * 1-rising
+ */
+ unsigned int ivclk:1;
+ unsigned int clkval_f; /* Divider to create pixel clock */
+
+ unsigned int upper_margin; /* Vertical Backporch */
+ unsigned int lower_margin; /* Vertical frontporch */
+ unsigned int vsync; /* Vertical Sync Pulse Width */
+ unsigned int left_margin; /* Horizantal Backporch */
+ unsigned int right_margin; /* Horizontal Frontporch */
+ unsigned int hsync; /* Horizontal Sync Pulse Width */
+ unsigned int xres; /* X Resolution */
+ unsigned int yres; /* Y Resopultion */
+};
+
+/* LCDIF Register Map */
+struct exynos5_disp_ctrl {
+ unsigned int vidout_con;
+ unsigned int vidcon1;
+ unsigned char res1[0x8];
+ unsigned int vidtcon0;
+ unsigned int vidtcon1;
+ unsigned int vidtcon2;
+ unsigned int vidtcon3;
+ unsigned char res2[0x184];
+ unsigned int trigcon;
+};
+
+#define VCLK_RISING_EDGE (1 << 7)
+#define VCLK_RUNNING (1 << 9)
+
+#define CHANNEL0_EN (1 << 0)
+
+#define VSYNC_PULSE_WIDTH_VAL 0x3
+#define VSYNC_PULSE_WIDTH_OFFSET 0
+#define V_FRONT_PORCH_VAL 0x3
+#define V_FRONT_PORCH_OFFSET 8
+#define V_BACK_PORCH_VAL 0x3
+#define V_BACK_PORCH_OFFSET 16
+
+#define HSYNC_PULSE_WIDTH_VAL 0x3
+#define HSYNC_PULSE_WIDTH_OFFSET 0
+#define H_FRONT_PORCH_VAL 0x3
+#define H_FRONT_PORCH_OFFSET 8
+#define H_BACK_PORCH_VAL 0x3
+#define H_BACK_PORCH_OFFSET 16
+
+#define HOZVAL_OFFSET 0
+#define LINEVAL_OFFSET 11
+
+#define BPPMODE_F_RGB_16BIT_565 0x5
+#define BPPMODE_F_OFFSET 2
+#define ENWIN_F_ENABLE (1 << 0)
+#define HALF_WORD_SWAP_EN (1 << 16)
+
+#define OSD_RIGHTBOTX_F_OFFSET 11
+#define OSD_RIGHTBOTY_F_OFFSET 0
+#endif
diff --git a/src/cpu/samsung/exynos5420/gpio.c b/src/cpu/samsung/exynos5420/gpio.c
new file mode 100644
index 0000000000..b8ebb0a4ed
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/gpio.c
@@ -0,0 +1,279 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <string.h>
+#include <delay.h>
+#include <assert.h>
+#include "gpio.h"
+#include "cpu.h"
+
+#define CON_MASK(x) (0xf << ((x) << 2))
+#define CON_SFR(x, v) ((v) << ((x) << 2))
+
+#define DAT_MASK(x) (0x1 << (x))
+#define DAT_SET(x) (0x1 << (x))
+
+#define PULL_MASK(x) (0x3 << ((x) << 1))
+#define PULL_MODE(x, v) ((v) << ((x) << 1))
+
+#define DRV_MASK(x) (0x3 << ((x) << 1))
+#define DRV_SET(x, m) ((m) << ((x) << 1))
+#define RATE_MASK(x) (0x1 << (x + 16))
+#define RATE_SET(x) (0x1 << (x + 16))
+
+struct gpio_info {
+ unsigned int reg_addr; /* Address of register for this part */
+ unsigned int max_gpio; /* Maximum GPIO in this part */
+};
+
+static const struct gpio_info gpio_data[EXYNOS_GPIO_NUM_PARTS] = {
+ { EXYNOS5_GPIO_PART1_BASE, GPIO_MAX_PORT_PART_1 },
+ { EXYNOS5_GPIO_PART2_BASE, GPIO_MAX_PORT_PART_2 },
+ { EXYNOS5_GPIO_PART3_BASE, GPIO_MAX_PORT_PART_3 },
+ { EXYNOS5_GPIO_PART4_BASE, GPIO_MAX_PORT_PART_4 },
+ { EXYNOS5_GPIO_PART5_BASE, GPIO_MAX_PORT_PART_5 },
+ { EXYNOS5_GPIO_PART6_BASE, GPIO_MAX_PORT },
+};
+
+/* This macro gets gpio pin offset from 0..7 */
+#define GPIO_BIT(x) ((x) & 0x7)
+
+static struct gpio_bank *gpio_get_bank(unsigned int gpio)
+{
+ const struct gpio_info *data;
+ unsigned int upto;
+ int i;
+
+ for (i = upto = 0, data = gpio_data; i < EXYNOS_GPIO_NUM_PARTS;
+ i++, upto = data->max_gpio, data++) {
+ if (gpio < data->max_gpio) {
+ struct gpio_bank *bank;
+
+ bank = (struct gpio_bank *)data->reg_addr;
+ bank += (gpio - upto) / GPIO_PER_BANK;
+ return bank;
+ }
+ }
+
+ ASSERT(gpio < GPIO_MAX_PORT); /* ...which it will not be */
+ return NULL;
+}
+
+/* Common GPIO API - only available on Exynos5 */
+void gpio_cfg_pin(int gpio, int cfg)
+{
+ unsigned int value;
+ struct gpio_bank *bank = gpio_get_bank(gpio);
+
+ value = readl(&bank->con);
+ value &= ~CON_MASK(GPIO_BIT(gpio));
+ value |= CON_SFR(GPIO_BIT(gpio), cfg);
+ writel(value, &bank->con);
+}
+
+static int gpio_get_cfg(int gpio)
+{
+ struct gpio_bank *bank = gpio_get_bank(gpio);
+ int shift = GPIO_BIT(gpio) << 2;
+
+ return (readl(&bank->con) & CON_MASK(GPIO_BIT(gpio))) >> shift;
+}
+
+void gpio_set_pull(int gpio, int mode)
+{
+ unsigned int value;
+ struct gpio_bank *bank = gpio_get_bank(gpio);
+
+ value = readl(&bank->pull);
+ value &= ~PULL_MASK(GPIO_BIT(gpio));
+
+ switch (mode) {
+ case GPIO_PULL_DOWN:
+ case GPIO_PULL_UP:
+ value |= PULL_MODE(GPIO_BIT(gpio), mode);
+ break;
+ default:
+ break;
+ }
+
+ writel(value, &bank->pull);
+}
+
+void gpio_set_drv(int gpio, int mode)
+{
+ unsigned int value;
+ struct gpio_bank *bank = gpio_get_bank(gpio);
+
+ value = readl(&bank->drv);
+ value &= ~DRV_MASK(GPIO_BIT(gpio));
+
+ switch (mode) {
+ case GPIO_DRV_1X:
+ case GPIO_DRV_2X:
+ case GPIO_DRV_3X:
+ case GPIO_DRV_4X:
+ value |= DRV_SET(GPIO_BIT(gpio), mode);
+ break;
+ default:
+ return;
+ }
+
+ writel(value, &bank->drv);
+}
+
+void gpio_set_rate(int gpio, int mode)
+{
+ unsigned int value;
+ struct gpio_bank *bank = gpio_get_bank(gpio);
+
+ value = readl(&bank->drv);
+ value &= ~RATE_MASK(GPIO_BIT(gpio));
+
+ switch (mode) {
+ case GPIO_DRV_FAST:
+ case GPIO_DRV_SLOW:
+ value |= RATE_SET(GPIO_BIT(gpio));
+ break;
+ default:
+ return;
+ }
+
+ writel(value, &bank->drv);
+}
+
+int gpio_direction_input(unsigned gpio)
+{
+ gpio_cfg_pin(gpio, GPIO_INPUT);
+
+ return 0;
+}
+
+int gpio_direction_output(unsigned gpio, int value)
+{
+ unsigned int val;
+ struct gpio_bank *bank = gpio_get_bank(gpio);
+
+ gpio_cfg_pin(gpio, GPIO_OUTPUT);
+
+ val = readl(&bank->dat);
+ val &= ~DAT_MASK(GPIO_BIT(gpio));
+ if (value)
+ val |= DAT_SET(GPIO_BIT(gpio));
+ writel(val, &bank->dat);
+
+ return 0;
+}
+
+int gpio_get_value(unsigned gpio)
+{
+ unsigned int value;
+ struct gpio_bank *bank = gpio_get_bank(gpio);
+
+ value = readl(&bank->dat);
+ return !!(value & DAT_MASK(GPIO_BIT(gpio)));
+}
+
+int gpio_set_value(unsigned gpio, int value)
+{
+ unsigned int val;
+ struct gpio_bank *bank = gpio_get_bank(gpio);
+
+ val = readl(&bank->dat);
+ val &= ~DAT_MASK(GPIO_BIT(gpio));
+ if (value)
+ val |= DAT_SET(GPIO_BIT(gpio));
+ writel(val, &bank->dat);
+
+ return 0;
+}
+
+/*
+ * Add a delay here to give the lines time to settle
+ * TODO(sjg): 1us does not always work, 2 is stable, so use 5 to be safe
+ * Come back to this and sort out what the datasheet says
+ */
+#define GPIO_DELAY_US 5
+
+#ifndef __BOOT_BLOCK__
+/*
+ * FIXME(dhendrix): These functions use udelay, which has dependencies on
+ * pwm code and timer code. These aren't necessary for the bootblock and
+ * bloat the image significantly.
+ */
+int gpio_read_mvl3(unsigned gpio)
+{
+ int high, low;
+ enum mvl3 value;
+
+ if (gpio >= GPIO_MAX_PORT)
+ return -1;
+
+ gpio_direction_input(gpio);
+ gpio_set_pull(gpio, GPIO_PULL_UP);
+ udelay(GPIO_DELAY_US);
+ high = gpio_get_value(gpio);
+ gpio_set_pull(gpio, GPIO_PULL_DOWN);
+ udelay(GPIO_DELAY_US);
+ low = gpio_get_value(gpio);
+
+ if (high && low) /* external pullup */
+ value = LOGIC_1;
+ else if (!high && !low) /* external pulldown */
+ value = LOGIC_0;
+ else /* floating */
+ value = LOGIC_Z;
+
+ /*
+ * Check if line is externally pulled high and
+ * configure the internal pullup to match. For
+ * floating and pulldowns, the GPIO is already
+ * configured with an internal pulldown from the
+ * above test.
+ */
+ if (value == LOGIC_1)
+ gpio_set_pull(gpio, GPIO_PULL_UP);
+
+ return value;
+}
+#endif /* __BOOT_BLOCK__ */
+
+/*
+ * Display Exynos GPIO information
+ */
+void gpio_info(void)
+{
+ unsigned gpio;
+
+ for (gpio = 0; gpio < GPIO_MAX_PORT; gpio++) {
+ int cfg = gpio_get_cfg(gpio);
+
+ printk(BIOS_INFO, "GPIO_%-3d: ", gpio);
+ if (cfg == GPIO_INPUT)
+ printk(BIOS_INFO, "input");
+ else if (cfg == GPIO_OUTPUT)
+ printk(BIOS_INFO, "output");
+ else
+ printk(BIOS_INFO, "func %d", cfg);
+
+ if (cfg == GPIO_INPUT || cfg == GPIO_OUTPUT)
+ printk(BIOS_INFO, ", value = %d", gpio_get_value(gpio));
+ printk(BIOS_INFO, "\n");
+ }
+}
diff --git a/src/cpu/samsung/exynos5420/gpio.h b/src/cpu/samsung/exynos5420/gpio.h
new file mode 100644
index 0000000000..0787826f01
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/gpio.h
@@ -0,0 +1,578 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_GPIO_H
+#define CPU_SAMSUNG_EXYNOS5420_GPIO_H
+
+struct gpio_bank {
+ unsigned int con;
+ unsigned int dat;
+ unsigned int pull;
+ unsigned int drv;
+ unsigned int pdn_con;
+ unsigned int pdn_pull;
+ unsigned char res1[8];
+};
+
+/* GPIO pins per bank */
+#define GPIO_PER_BANK 8
+
+/* Pin configurations */
+#define GPIO_INPUT 0x0
+#define GPIO_OUTPUT 0x1
+#define GPIO_IRQ 0xf
+#define GPIO_FUNC(x) (x)
+
+/* Pull mode */
+#define GPIO_PULL_NONE 0x0
+#define GPIO_PULL_DOWN 0x1
+#define GPIO_PULL_UP 0x3
+
+/* Drive Strength level */
+#define GPIO_DRV_1X 0x0
+#define GPIO_DRV_3X 0x1
+#define GPIO_DRV_2X 0x2
+#define GPIO_DRV_4X 0x3
+#define GPIO_DRV_FAST 0x0
+#define GPIO_DRV_SLOW 0x1
+
+#define EXYNOS5_GPIO_BASE0 0x11400000
+#define EXYNOS5_GPIO_BASE1 0x13400000
+#define EXYNOS5_GPIO_BASE2 0x10d10000
+#define EXYNOS5_GPIO_BASE3 0x03860000
+
+enum exynos5_gpio_port {
+ /*
+ * Ordered by base address + offset.
+ * ETC registers are special, thus not included.
+ */
+
+ /* base == EXYNOS_GPIO_BASE0 */
+ EXYNOS5_GPA0 = EXYNOS5_GPIO_BASE0 + 0x0000,
+ EXYNOS5_GPA1 = EXYNOS5_GPIO_BASE0 + 0x0020,
+ EXYNOS5_GPA2 = EXYNOS5_GPIO_BASE0 + 0x0040,
+
+ EXYNOS5_GPB0 = EXYNOS5_GPIO_BASE0 + 0x0060,
+ EXYNOS5_GPB1 = EXYNOS5_GPIO_BASE0 + 0x0080,
+ EXYNOS5_GPB2 = EXYNOS5_GPIO_BASE0 + 0x00a0,
+ EXYNOS5_GPB3 = EXYNOS5_GPIO_BASE0 + 0x00c0,
+
+ EXYNOS5_GPC0 = EXYNOS5_GPIO_BASE0 + 0x00e0,
+ EXYNOS5_GPC1 = EXYNOS5_GPIO_BASE0 + 0x0100,
+ EXYNOS5_GPC2 = EXYNOS5_GPIO_BASE0 + 0x0120,
+ EXYNOS5_GPC3 = EXYNOS5_GPIO_BASE0 + 0x0140,
+
+ EXYNOS5_GPD0 = EXYNOS5_GPIO_BASE0 + 0x0160,
+ EXYNOS5_GPD1 = EXYNOS5_GPIO_BASE0 + 0x0180,
+
+ EXYNOS5_GPY0 = EXYNOS5_GPIO_BASE0 + 0x01a0,
+ EXYNOS5_GPY1 = EXYNOS5_GPIO_BASE0 + 0x01c0,
+ EXYNOS5_GPY2 = EXYNOS5_GPIO_BASE0 + 0x01e0,
+ EXYNOS5_GPY3 = EXYNOS5_GPIO_BASE0 + 0x0200,
+ EXYNOS5_GPY4 = EXYNOS5_GPIO_BASE0 + 0x0220,
+ EXYNOS5_GPY5 = EXYNOS5_GPIO_BASE0 + 0x0240,
+ EXYNOS5_GPY6 = EXYNOS5_GPIO_BASE0 + 0x0260,
+
+ EXYNOS5_GPX0 = EXYNOS5_GPIO_BASE0 + 0x0c00,
+ EXYNOS5_GPX1 = EXYNOS5_GPIO_BASE0 + 0x0c20,
+ EXYNOS5_GPX2 = EXYNOS5_GPIO_BASE0 + 0x0c40,
+ EXYNOS5_GPX3 = EXYNOS5_GPIO_BASE0 + 0x0c60,
+
+ /* base == EXYNOS_GPIO_BASE1 */
+ EXYNOS5_GPE0 = EXYNOS5_GPIO_BASE1 + 0x0000,
+ EXYNOS5_GPE1 = EXYNOS5_GPIO_BASE1 + 0x0020,
+
+ EXYNOS5_GPF0 = EXYNOS5_GPIO_BASE1 + 0x0040,
+ EXYNOS5_GPF1 = EXYNOS5_GPIO_BASE1 + 0x0060,
+
+ EXYNOS5_GPG0 = EXYNOS5_GPIO_BASE1 + 0x0080,
+ EXYNOS5_GPG1 = EXYNOS5_GPIO_BASE1 + 0x00a0,
+ EXYNOS5_GPG2 = EXYNOS5_GPIO_BASE1 + 0x00c0,
+
+ EXYNOS5_GPH0 = EXYNOS5_GPIO_BASE1 + 0x00e0,
+ EXYNOS5_GPH1 = EXYNOS5_GPIO_BASE1 + 0x0100,
+
+ /* base == EXYNOS_GPIO_BASE2 */
+ EXYNOS5_GPV0 = EXYNOS5_GPIO_BASE2 + 0x0000,
+ EXYNOS5_GPV1 = EXYNOS5_GPIO_BASE2 + 0x0020,
+ EXYNOS5_GPV2 = EXYNOS5_GPIO_BASE2 + 0x0060,
+ EXYNOS5_GPV3 = EXYNOS5_GPIO_BASE2 + 0x0080,
+ EXYNOS5_GPV4 = EXYNOS5_GPIO_BASE2 + 0x00c0,
+
+ /* base == EXYNOS_GPIO_BASE3 */
+ EXYNOS5_GPZ = EXYNOS5_GPIO_BASE3 + 0x0000,
+};
+
+enum {
+ /* GPIO banks are split into this many parts */
+ EXYNOS_GPIO_NUM_PARTS = 6
+};
+
+/* A list of valid GPIO numbers for the asm-generic/gpio.h interface */
+enum exynos5_gpio_pin {
+ /* GPIO_PART1_STARTS */
+ GPIO_A00,
+ GPIO_A01,
+ GPIO_A02,
+ GPIO_A03,
+ GPIO_A04,
+ GPIO_A05,
+ GPIO_A06,
+ GPIO_A07,
+ GPIO_A10,
+ GPIO_A11,
+ GPIO_A12,
+ GPIO_A13,
+ GPIO_A14,
+ GPIO_A15,
+ GPIO_A16,
+ GPIO_A17,
+ GPIO_A20,
+ GPIO_A21,
+ GPIO_A22,
+ GPIO_A23,
+ GPIO_A24,
+ GPIO_A25,
+ GPIO_A26,
+ GPIO_A27,
+ GPIO_B00, /* 0x18 */
+ GPIO_B01,
+ GPIO_B02,
+ GPIO_B03,
+ GPIO_B04,
+ GPIO_B05,
+ GPIO_B06,
+ GPIO_B07,
+ GPIO_B10,
+ GPIO_B11,
+ GPIO_B12,
+ GPIO_B13,
+ GPIO_B14,
+ GPIO_B15,
+ GPIO_B16,
+ GPIO_B17,
+ GPIO_B20,
+ GPIO_B21,
+ GPIO_B22,
+ GPIO_B23,
+ GPIO_B24,
+ GPIO_B25,
+ GPIO_B26,
+ GPIO_B27,
+ GPIO_B30,
+ GPIO_B31,
+ GPIO_B32,
+ GPIO_B33,
+ GPIO_B34,
+ GPIO_B35,
+ GPIO_B36,
+ GPIO_B37,
+ GPIO_C00, /* 0x38 */
+ GPIO_C01,
+ GPIO_C02,
+ GPIO_C03,
+ GPIO_C04,
+ GPIO_C05,
+ GPIO_C06,
+ GPIO_C07,
+ GPIO_C10,
+ GPIO_C11,
+ GPIO_C12,
+ GPIO_C13,
+ GPIO_C14,
+ GPIO_C15,
+ GPIO_C16,
+ GPIO_C17,
+ GPIO_C20,
+ GPIO_C21,
+ GPIO_C22,
+ GPIO_C23,
+ GPIO_C24,
+ GPIO_C25,
+ GPIO_C26,
+ GPIO_C27,
+ GPIO_C30,
+ GPIO_C31,
+ GPIO_C32,
+ GPIO_C33,
+ GPIO_C34,
+ GPIO_C35,
+ GPIO_C36,
+ GPIO_C37,
+ GPIO_D00, /* 0x58 */
+ GPIO_D01,
+ GPIO_D02,
+ GPIO_D03,
+ GPIO_D04,
+ GPIO_D05,
+ GPIO_D06,
+ GPIO_D07,
+ GPIO_D10,
+ GPIO_D11,
+ GPIO_D12,
+ GPIO_D13,
+ GPIO_D14,
+ GPIO_D15,
+ GPIO_D16,
+ GPIO_D17,
+ GPIO_Y00, /* 0x68 */
+ GPIO_Y01,
+ GPIO_Y02,
+ GPIO_Y03,
+ GPIO_Y04,
+ GPIO_Y05,
+ GPIO_Y06,
+ GPIO_Y07,
+ GPIO_Y10,
+ GPIO_Y11,
+ GPIO_Y12,
+ GPIO_Y13,
+ GPIO_Y14,
+ GPIO_Y15,
+ GPIO_Y16,
+ GPIO_Y17,
+ GPIO_Y20,
+ GPIO_Y21,
+ GPIO_Y22,
+ GPIO_Y23,
+ GPIO_Y24,
+ GPIO_Y25,
+ GPIO_Y26,
+ GPIO_Y27,
+ GPIO_Y30,
+ GPIO_Y31,
+ GPIO_Y32,
+ GPIO_Y33,
+ GPIO_Y34,
+ GPIO_Y35,
+ GPIO_Y36,
+ GPIO_Y37,
+ GPIO_Y40,
+ GPIO_Y41,
+ GPIO_Y42,
+ GPIO_Y43,
+ GPIO_Y44,
+ GPIO_Y45,
+ GPIO_Y46,
+ GPIO_Y47,
+ GPIO_Y50,
+ GPIO_Y51,
+ GPIO_Y52,
+ GPIO_Y53,
+ GPIO_Y54,
+ GPIO_Y55,
+ GPIO_Y56,
+ GPIO_Y57,
+ GPIO_Y60,
+ GPIO_Y61,
+ GPIO_Y62,
+ GPIO_Y63,
+ GPIO_Y64,
+ GPIO_Y65,
+ GPIO_Y66,
+ GPIO_Y67,
+
+ /* GPIO_PART2_STARTS */
+ GPIO_MAX_PORT_PART_1,
+ GPIO_X00 = GPIO_MAX_PORT_PART_1, /* 0xa0 */
+ GPIO_X01,
+ GPIO_X02,
+ GPIO_X03,
+ GPIO_X04,
+ GPIO_X05,
+ GPIO_X06,
+ GPIO_X07,
+ GPIO_X10,
+ GPIO_X11,
+ GPIO_X12,
+ GPIO_X13,
+ GPIO_X14,
+ GPIO_X15,
+ GPIO_X16,
+ GPIO_X17,
+ GPIO_X20,
+ GPIO_X21,
+ GPIO_X22,
+ GPIO_X23,
+ GPIO_X24,
+ GPIO_X25,
+ GPIO_X26,
+ GPIO_X27,
+ GPIO_X30,
+ GPIO_X31,
+ GPIO_X32,
+ GPIO_X33,
+ GPIO_X34,
+ GPIO_X35,
+ GPIO_X36,
+ GPIO_X37,
+
+ /* GPIO_PART3_STARTS */
+ GPIO_MAX_PORT_PART_2,
+ GPIO_E00 = GPIO_MAX_PORT_PART_2, /* 0xc0 */
+ GPIO_E01,
+ GPIO_E02,
+ GPIO_E03,
+ GPIO_E04,
+ GPIO_E05,
+ GPIO_E06,
+ GPIO_E07,
+ GPIO_E10,
+ GPIO_E11,
+ GPIO_E12,
+ GPIO_E13,
+ GPIO_E14,
+ GPIO_E15,
+ GPIO_E16,
+ GPIO_E17,
+ GPIO_F00, /* 0xd0 */
+ GPIO_F01,
+ GPIO_F02,
+ GPIO_F03,
+ GPIO_F04,
+ GPIO_F05,
+ GPIO_F06,
+ GPIO_F07,
+ GPIO_F10,
+ GPIO_F11,
+ GPIO_F12,
+ GPIO_F13,
+ GPIO_F14,
+ GPIO_F15,
+ GPIO_F16,
+ GPIO_F17,
+ GPIO_G00,
+ GPIO_G01,
+ GPIO_G02,
+ GPIO_G03,
+ GPIO_G04,
+ GPIO_G05,
+ GPIO_G06,
+ GPIO_G07,
+ GPIO_G10,
+ GPIO_G11,
+ GPIO_G12,
+ GPIO_G13,
+ GPIO_G14,
+ GPIO_G15,
+ GPIO_G16,
+ GPIO_G17,
+ GPIO_G20,
+ GPIO_G21,
+ GPIO_G22,
+ GPIO_G23,
+ GPIO_G24,
+ GPIO_G25,
+ GPIO_G26,
+ GPIO_G27,
+ GPIO_H00,
+ GPIO_H01,
+ GPIO_H02,
+ GPIO_H03,
+ GPIO_H04,
+ GPIO_H05,
+ GPIO_H06,
+ GPIO_H07,
+ GPIO_H10,
+ GPIO_H11,
+ GPIO_H12,
+ GPIO_H13,
+ GPIO_H14,
+ GPIO_H15,
+ GPIO_H16,
+ GPIO_H17,
+
+ /* GPIO_PART4_STARTS */
+ GPIO_MAX_PORT_PART_3,
+ GPIO_V00 = GPIO_MAX_PORT_PART_3,
+ GPIO_V01,
+ GPIO_V02,
+ GPIO_V03,
+ GPIO_V04,
+ GPIO_V05,
+ GPIO_V06,
+ GPIO_V07,
+ GPIO_V10,
+ GPIO_V11,
+ GPIO_V12,
+ GPIO_V13,
+ GPIO_V14,
+ GPIO_V15,
+ GPIO_V16,
+ GPIO_V17,
+ GPIO_V20,
+ GPIO_V21,
+ GPIO_V22,
+ GPIO_V23,
+ GPIO_V24,
+ GPIO_V25,
+ GPIO_V26,
+ GPIO_V27,
+ GPIO_V30,
+ GPIO_V31,
+ GPIO_V32,
+ GPIO_V33,
+ GPIO_V34,
+ GPIO_V35,
+ GPIO_V36,
+ GPIO_V37,
+
+ /* GPIO_PART5_STARTS */
+ GPIO_MAX_PORT_PART_4,
+ GPIO_V40 = GPIO_MAX_PORT_PART_4,
+ GPIO_V41,
+ GPIO_V42,
+ GPIO_V43,
+ GPIO_V44,
+ GPIO_V45,
+ GPIO_V46,
+ GPIO_V47,
+
+ /* GPIO_PART6_STARTS */
+ GPIO_MAX_PORT_PART_5,
+ GPIO_Z0 = GPIO_MAX_PORT_PART_5,
+ GPIO_Z1,
+ GPIO_Z2,
+ GPIO_Z3,
+ GPIO_Z4,
+ GPIO_Z5,
+ GPIO_Z6,
+ GPIO_MAX_PORT
+};
+
+/**
+ * Set GPIO pin configuration.
+ *
+ * @param gpio GPIO pin
+ * @param cfg Either GPIO_INPUT, GPIO_OUTPUT, or GPIO_IRQ
+ */
+void gpio_cfg_pin(int gpio, int cfg);
+
+/**
+ * Set GPIO pull mode.
+ *
+ * @param gpio GPIO pin
+ * @param mode Either GPIO_PULL_DOWN or GPIO_PULL_UP
+ */
+void gpio_set_pull(int gpio, int mode);
+
+/**
+ * Set GPIO drive strength level.
+ *
+ * @param gpio GPIO pin
+ * @param mode Either GPIO_DRV_1X, GPIO_DRV_2X, GPIO_DRV_3X, or GPIO_DRV_4X
+ */
+void gpio_set_drv(int gpio, int mode);
+
+/**
+ * Set GPIO drive rate.
+ *
+ * @param gpio GPIO pin
+ * @param mode Either GPIO_DRV_FAST or GPIO_DRV_SLOW
+ */
+void gpio_set_rate(int gpio, int mode);
+
+/*
+ * reads only a single GPIO
+ *
+ * @param gpio GPIO to read
+ * @return -1 if the value cannot be determined. Otherwise returns
+ * the corresponding MVL3 enum value.
+ */
+int gpio_read_mvl3(unsigned gpio);
+
+void gpio_info(void);
+
+/*
+ * Generic GPIO API for U-Boot
+ *
+ * GPIOs are numbered from 0 to GPIO_COUNT-1 which value is defined
+ * by the SOC/architecture.
+ *
+ * Each GPIO can be an input or output. If an input then its value can
+ * be read as 0 or 1. If an output then its value can be set to 0 or 1.
+ * If you try to write an input then the value is undefined. If you try
+ * to read an output, barring something very unusual, you will get
+ * back the value of the output that you previously set.
+ *
+ * In some cases the operation may fail, for example if the GPIO number
+ * is out of range, or the GPIO is not available because its pin is
+ * being used by another function. In that case, functions may return
+ * an error value of -1.
+ */
+
+/**
+ * Make a GPIO an input.
+ *
+ * @param gpio GPIO number
+ * @return 0 if ok, -1 on error
+ */
+int gpio_direction_input(unsigned gpio);
+
+/**
+ * Make a GPIO an output, and set its value.
+ *
+ * @param gpio GPIO number
+ * @param value GPIO value (0 for low or 1 for high)
+ * @return 0 if ok, -1 on error
+ */
+int gpio_direction_output(unsigned gpio, int value);
+
+/**
+ * Get a GPIO's value. This will work whether the GPIO is an input
+ * or an output.
+ *
+ * @param gpio GPIO number
+ * @return 0 if low, 1 if high, -1 on error
+ */
+int gpio_get_value(unsigned gpio);
+
+/**
+ * Set an output GPIO's value. The GPIO must already be an output or
+ * this function may have no effect.
+ *
+ * @param gpio GPIO number
+ * @param value GPIO value (0 for low or 1 for high)
+ * @return 0 if ok, -1 on error
+ */
+int gpio_set_value(unsigned gpio, int value);
+
+/*
+ * Many-value logic (3 states). This can be used for inputs whereby presence
+ * of external pull-up or pull-down resistors can be added to overcome internal
+ * pull-ups/pull-downs and force a single value.
+ *
+ * Thus, external pull resistors can force a 0 or 1 and if the value changes
+ * along with internal pull-up/down enable then the input is floating.
+ *
+ * Vpd | Vpu | MVL
+ * -----------------
+ * 0 | 0 | 0
+ * -----------------
+ * 0 | 1 | Z <-- floating input will follow internal pull up/down
+ * -----------------
+ * 1 | 1 | 1
+ */
+enum mvl3 {
+ LOGIC_0,
+ LOGIC_1,
+ LOGIC_Z, /* high impedence / tri-stated / floating */
+};
+
+#endif /* CPU_SAMSUNG_EXYNOS5420_GPIO_H */
diff --git a/src/cpu/samsung/exynos5420/i2c.c b/src/cpu/samsung/exynos5420/i2c.c
new file mode 100644
index 0000000000..98eb64106e
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/i2c.c
@@ -0,0 +1,405 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, d.mueller@elsoft.ch
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <delay.h>
+#include <arch/io.h>
+#include <device/i2c.h>
+#include "clk.h"
+#include "i2c.h"
+#include "pinmux.h"
+
+#define I2C_WRITE 0
+#define I2C_READ 1
+
+#define I2C_OK 0
+#define I2C_NOK 1
+#define I2C_NACK 2
+#define I2C_NOK_LA 3 /* Lost arbitration */
+#define I2C_NOK_TOUT 4 /* time out */
+
+#define I2CSTAT_BSY 0x20 /* Busy bit */
+#define I2CSTAT_NACK 0x01 /* Nack bit */
+#define I2CCON_ACKGEN 0x80 /* Acknowledge generation */
+#define I2CCON_IRPND 0x10 /* Interrupt pending bit */
+#define I2C_MODE_MT 0xC0 /* Master Transmit Mode */
+#define I2C_MODE_MR 0x80 /* Master Receive Mode */
+#define I2C_START_STOP 0x20 /* START / STOP */
+#define I2C_TXRX_ENA 0x10 /* I2C Tx/Rx enable */
+
+/* The timeouts we live by */
+enum {
+ I2C_XFER_TIMEOUT_MS = 35, /* xfer to complete */
+ I2C_INIT_TIMEOUT_MS = 1000, /* bus free on init */
+ I2C_IDLE_TIMEOUT_MS = 100, /* waiting for bus idle */
+ I2C_STOP_TIMEOUT_US = 200, /* waiting for stop events */
+};
+
+static struct s3c24x0_i2c_bus i2c_buses[] = {
+ {
+ .bus_num = 0,
+ .regs = (struct s3c24x0_i2c *)0x12c60000,
+ .periph_id = PERIPH_ID_I2C0,
+ },
+ {
+ .bus_num = 1,
+ .regs = (struct s3c24x0_i2c *)0x12c70000,
+ .periph_id = PERIPH_ID_I2C1,
+ },
+ {
+ .bus_num = 2,
+ .regs = (struct s3c24x0_i2c *)0x12c80000,
+ .periph_id = PERIPH_ID_I2C2,
+ },
+ {
+ .bus_num = 3,
+ .regs = (struct s3c24x0_i2c *)0x12c90000,
+ .periph_id = PERIPH_ID_I2C3,
+ },
+ {
+ .bus_num = 4,
+ .regs = (struct s3c24x0_i2c *)0x12ca0000,
+ .periph_id = PERIPH_ID_I2C4,
+ },
+ {
+ .bus_num = 5,
+ .regs = (struct s3c24x0_i2c *)0x12cb0000,
+ .periph_id = PERIPH_ID_I2C5,
+ },
+ {
+ .bus_num = 6,
+ .regs = (struct s3c24x0_i2c *)0x12cc0000,
+ .periph_id = PERIPH_ID_I2C6,
+ },
+ {
+ .bus_num = 7,
+ .regs = (struct s3c24x0_i2c *)0x12cd0000,
+ .periph_id = PERIPH_ID_I2C7,
+ },
+};
+
+static int WaitForXfer(struct s3c24x0_i2c *i2c)
+{
+ int i;
+
+ i = I2C_XFER_TIMEOUT_MS * 20;
+ while (!(readl(&i2c->iiccon) & I2CCON_IRPND)) {
+ if (i == 0) {
+ printk(BIOS_ERR, "%s: i2c xfer timeout\n", __func__);
+ return I2C_NOK_TOUT;
+ }
+ udelay(50);
+ i--;
+ }
+
+ return I2C_OK;
+}
+
+static int IsACK(struct s3c24x0_i2c *i2c)
+{
+ return !(readl(&i2c->iicstat) & I2CSTAT_NACK);
+}
+
+static void ReadWriteByte(struct s3c24x0_i2c *i2c)
+{
+ uint32_t x;
+
+ x = readl(&i2c->iiccon);
+ writel(x & ~I2CCON_IRPND, &i2c->iiccon);
+}
+
+static void i2c_ch_init(struct s3c24x0_i2c_bus *bus, int speed, int slaveadd)
+{
+ unsigned long freq, pres = 16, div;
+ unsigned long val;
+
+ freq = clock_get_periph_rate(bus->periph_id);
+ /* calculate prescaler and divisor values */
+ if ((freq / pres / (16 + 1)) > speed)
+ /* set prescaler to 512 */
+ pres = 512;
+
+ div = 0;
+
+ while ((freq / pres / (div + 1)) > speed)
+ div++;
+
+ /* set prescaler, divisor according to freq, also set ACKGEN, IRQ */
+ val = (div & 0x0F) | 0xA0 | ((pres == 512) ? 0x40 : 0);
+ writel(val, &bus->regs->iiccon);
+
+ /* init to SLAVE RECEIVE mode and clear I2CADDn */
+ writel(0, &bus->regs->iicstat);
+ writel(slaveadd, &bus->regs->iicadd);
+ /* program Master Transmit (and implicit STOP) */
+ writel(I2C_MODE_MT | I2C_TXRX_ENA, &bus->regs->iicstat);
+}
+
+/*
+ * MULTI BUS I2C support
+ */
+static void i2c_bus_init(struct s3c24x0_i2c_bus *bus, int speed, int slaveadd)
+{
+ exynos_pinmux_config(bus->periph_id, 0);
+ i2c_ch_init(bus, speed, slaveadd);
+}
+
+/*
+ * Verify the whether I2C ACK was received or not
+ *
+ * @param i2c pointer to I2C register base
+ * @param buf array of data
+ * @param len length of data
+ * return I2C_OK when transmission done
+ * I2C_NACK otherwise
+ */
+static int i2c_send_verify(struct s3c24x0_i2c *i2c, unsigned char buf[],
+ unsigned char len)
+{
+ int i, result = I2C_OK;
+
+ if (IsACK(i2c)) {
+ for (i = 0; (i < len) && (result == I2C_OK); i++) {
+ writel(buf[i], &i2c->iicds);
+ ReadWriteByte(i2c);
+ result = WaitForXfer(i2c);
+ if (result == I2C_OK && !IsACK(i2c))
+ result = I2C_NACK;
+ }
+ } else {
+ result = I2C_NACK;
+ }
+
+ return result;
+}
+
+void i2c_init(unsigned bus_num, int speed, int slaveadd)
+{
+ struct s3c24x0_i2c_bus *i2c;
+ int i;
+
+ i2c = &i2c_buses[bus_num];
+ i2c_bus_init(i2c, speed, slaveadd);
+
+ /* wait for some time to give previous transfer a chance to finish */
+ i = I2C_INIT_TIMEOUT_MS * 20;
+ while ((readl(&i2c->regs->iicstat) & I2CSTAT_BSY) && (i > 0)) {
+ udelay(50);
+ i--;
+ }
+
+ i2c_ch_init(i2c, speed, slaveadd);
+}
+
+/*
+ * Send a STOP event and wait for it to have completed
+ *
+ * @param mode If it is a master transmitter or receiver
+ * @return I2C_OK if the line became idle before timeout I2C_NOK_TOUT otherwise
+ */
+static int i2c_send_stop(struct s3c24x0_i2c *i2c, int mode)
+{
+ int timeout;
+
+ /* Setting the STOP event to fire */
+ writel(mode | I2C_TXRX_ENA, &i2c->iicstat);
+ ReadWriteByte(i2c);
+
+ /* Wait for the STOP to send and the bus to go idle */
+ for (timeout = I2C_STOP_TIMEOUT_US; timeout > 0; timeout -= 5) {
+ if (!(readl(&i2c->iicstat) & I2CSTAT_BSY))
+ return I2C_OK;
+ udelay(5);
+ }
+
+ return I2C_NOK_TOUT;
+}
+
+/*
+ * cmd_type is 0 for write, 1 for read.
+ *
+ * addr_len can take any value from 0-255, it is only limited
+ * by the char, we could make it larger if needed. If it is
+ * 0 we skip the address write cycle.
+ */
+static int i2c_transfer(struct s3c24x0_i2c *i2c,
+ unsigned char cmd_type,
+ unsigned char chip,
+ unsigned char addr[],
+ unsigned char addr_len,
+ unsigned char data[],
+ unsigned short data_len)
+{
+ int i, result, stop_bit_result;
+ uint32_t x;
+
+ if (data == 0 || data_len == 0) {
+ /* Don't support data transfer of no length or to address 0 */
+ printk(BIOS_ERR, "i2c_transfer: bad call\n");
+ return I2C_NOK;
+ }
+
+ /* Check I2C bus idle */
+ i = I2C_IDLE_TIMEOUT_MS * 20;
+ while ((readl(&i2c->iicstat) & I2CSTAT_BSY) && (i > 0)) {
+ udelay(50);
+ i--;
+ }
+
+ if (readl(&i2c->iicstat) & I2CSTAT_BSY) {
+ printk(BIOS_ERR, "%s: bus busy\n", __func__);
+ return I2C_NOK_TOUT;
+ }
+
+ x = readl(&i2c->iiccon);
+ writel(x | I2CCON_ACKGEN, &i2c->iiccon);
+
+ if (addr && addr_len) {
+ writel(chip, &i2c->iicds);
+ /* send START */
+ writel(I2C_MODE_MT | I2C_TXRX_ENA | I2C_START_STOP,
+ &i2c->iicstat);
+ if (WaitForXfer(i2c) == I2C_OK)
+ result = i2c_send_verify(i2c, addr, addr_len);
+ else
+ result = I2C_NACK;
+ } else
+ result = I2C_NACK;
+
+ switch (cmd_type) {
+ case I2C_WRITE:
+ if (result == I2C_OK)
+ result = i2c_send_verify(i2c, data, data_len);
+ else {
+ writel(chip, &i2c->iicds);
+ /* send START */
+ writel(I2C_MODE_MT | I2C_TXRX_ENA | I2C_START_STOP,
+ &i2c->iicstat);
+ if (WaitForXfer(i2c) == I2C_OK)
+ result = i2c_send_verify(i2c, data, data_len);
+ }
+
+ if (result == I2C_OK)
+ result = WaitForXfer(i2c);
+
+ stop_bit_result = i2c_send_stop(i2c, I2C_MODE_MT);
+ break;
+
+ case I2C_READ:
+ {
+ int was_ok = (result == I2C_OK);
+
+ writel(chip, &i2c->iicds);
+ /* resend START */
+ writel(I2C_MODE_MR | I2C_TXRX_ENA |
+ I2C_START_STOP, &i2c->iicstat);
+ ReadWriteByte(i2c);
+ result = WaitForXfer(i2c);
+
+ if (was_ok || IsACK(i2c)) {
+ i = 0;
+ while ((i < data_len) && (result == I2C_OK)) {
+ /* disable ACK for final READ */
+ if (i == data_len - 1) {
+ x = readl(&i2c->iiccon) & ~I2CCON_ACKGEN;
+ writel(x, &i2c->iiccon);
+ }
+ ReadWriteByte(i2c);
+ result = WaitForXfer(i2c);
+ data[i] = readl(&i2c->iicds);
+ i++;
+ }
+ } else {
+ result = I2C_NACK;
+ }
+
+ stop_bit_result = i2c_send_stop(i2c, I2C_MODE_MR);
+ break;
+ }
+
+ default:
+ printk(BIOS_ERR, "i2c_transfer: bad call\n");
+ result = stop_bit_result = I2C_NOK;
+ break;
+ }
+
+ /*
+ * If the transmission went fine, then only the stop bit was left to
+ * fail. Otherwise, the real failure we're interested in came before
+ * that, during the actual transmission.
+ */
+ return (result == I2C_OK) ? stop_bit_result : result;
+}
+
+int i2c_read(unsigned bus, unsigned chip, unsigned addr,
+ unsigned alen, unsigned char *buf, unsigned len)
+{
+ struct s3c24x0_i2c_bus *i2c;
+ unsigned char xaddr[4];
+ int ret;
+
+ if (alen > 4) {
+ printk(BIOS_ERR, "I2C read: addr len %d not supported\n", alen);
+ return 1;
+ }
+
+ if (alen > 0) {
+ xaddr[0] = (addr >> 24) & 0xFF;
+ xaddr[1] = (addr >> 16) & 0xFF;
+ xaddr[2] = (addr >> 8) & 0xFF;
+ xaddr[3] = addr & 0xFF;
+ }
+
+ i2c = &i2c_buses[bus];
+ ret = i2c_transfer(i2c->regs, I2C_READ, chip << 1, &xaddr[4 - alen],
+ alen, buf, len);
+ if (ret) {
+ printk(BIOS_ERR, "I2c read: failed %d\n", ret);
+ return 1;
+ }
+ return 0;
+}
+
+int i2c_write(unsigned bus, unsigned chip, unsigned addr,
+ unsigned alen, unsigned char *buf, unsigned len)
+{
+ struct s3c24x0_i2c_bus *i2c;
+ unsigned char xaddr[4];
+ int ret;
+
+ if (alen > 4) {
+ printk(BIOS_ERR, "I2C write: addr len %d not supported\n",
+ alen);
+ return 1;
+ }
+
+ if (alen > 0) {
+ xaddr[0] = (addr >> 24) & 0xFF;
+ xaddr[1] = (addr >> 16) & 0xFF;
+ xaddr[2] = (addr >> 8) & 0xFF;
+ xaddr[3] = addr & 0xFF;
+ }
+
+ i2c = &i2c_buses[bus];
+ ret = i2c_transfer(i2c->regs, I2C_WRITE, chip << 1, &xaddr[4 - alen],
+ alen, buf, len);
+
+ return ret != 0;
+}
diff --git a/src/cpu/samsung/exynos5420/i2c.h b/src/cpu/samsung/exynos5420/i2c.h
new file mode 100644
index 0000000000..b14aa79afc
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/i2c.h
@@ -0,0 +1,41 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_I2C_H
+#define CPU_SAMSUNG_EXYNOS5420_I2C_H
+
+#include "periph.h"
+
+struct s3c24x0_i2c {
+ u32 iiccon;
+ u32 iicstat;
+ u32 iicadd;
+ u32 iicds;
+ u32 iiclc;
+};
+
+struct s3c24x0_i2c_bus {
+ int bus_num;
+ struct s3c24x0_i2c *regs;
+ enum periph_id periph_id;
+};
+
+void i2c_init(unsigned bus, int speed, int slaveadd);
+
+#endif /* CPU_SAMSUNG_EXYNOS5420_I2C_H */
diff --git a/src/cpu/samsung/exynos5420/i2s-regs.h b/src/cpu/samsung/exynos5420/i2s-regs.h
new file mode 100644
index 0000000000..28d2685c63
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/i2s-regs.h
@@ -0,0 +1,142 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Taken from the kernel code */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_I2S_REGS_H
+#define CPU_SAMSUNG_EXYNOS5420_I2S_REGS_H
+
+#define I2SCON 0x0
+#define I2SMOD 0x4
+#define I2SFIC 0x8
+#define I2SPSR 0xc
+#define I2STXD 0x10
+#define I2SRXD 0x14
+#define I2SFICS 0x18
+#define I2STXDS 0x1c
+#define I2SAHB 0x20
+#define I2SSTR0 0x24
+#define I2SSIZE 0x28
+#define I2STRNCNT 0x2c
+#define I2SLVL0ADDR 0x30
+#define I2SLVL1ADDR 0x34
+#define I2SLVL2ADDR 0x38
+#define I2SLVL3ADDR 0x3c
+
+#define CON_RSTCLR (1 << 31)
+#define CON_FRXOFSTATUS (1 << 26)
+#define CON_FRXORINTEN (1 << 25)
+#define CON_FTXSURSTAT (1 << 24)
+#define CON_FTXSURINTEN (1 << 23)
+#define CON_TXSDMA_PAUSE (1 << 20)
+#define CON_TXSDMA_ACTIVE (1 << 18)
+
+#define CON_FTXURSTATUS (1 << 17)
+#define CON_FTXURINTEN (1 << 16)
+#define CON_TXFIFO2_EMPTY (1 << 15)
+#define CON_TXFIFO1_EMPTY (1 << 14)
+#define CON_TXFIFO2_FULL (1 << 13)
+#define CON_TXFIFO1_FULL (1 << 12)
+
+#define CON_LRINDEX (1 << 11)
+#define CON_TXFIFO_EMPTY (1 << 10)
+#define CON_RXFIFO_EMPTY (1 << 9)
+#define CON_TXFIFO_FULL (1 << 8)
+#define CON_RXFIFO_FULL (1 << 7)
+#define CON_TXDMA_PAUSE (1 << 6)
+#define CON_RXDMA_PAUSE (1 << 5)
+#define CON_TXCH_PAUSE (1 << 4)
+#define CON_RXCH_PAUSE (1 << 3)
+#define CON_TXDMA_ACTIVE (1 << 2)
+#define CON_RXDMA_ACTIVE (1 << 1)
+#define CON_ACTIVE (1 << 0)
+
+#define MOD_OPCLK_CDCLK_OUT (0 << 30)
+#define MOD_OPCLK_CDCLK_IN (1 << 30)
+#define MOD_OPCLK_BCLK_OUT (2 << 30)
+#define MOD_OPCLK_PCLK (3 << 30)
+#define MOD_OPCLK_MASK (3 << 30)
+#define MOD_TXS_IDMA (1 << 28) /* Sec_TXFIFO use I-DMA */
+
+#define MOD_BLCS_SHIFT 26
+#define MOD_BLCS_16BIT (0 << MOD_BLCS_SHIFT)
+#define MOD_BLCS_8BIT (1 << MOD_BLCS_SHIFT)
+#define MOD_BLCS_24BIT (2 << MOD_BLCS_SHIFT)
+#define MOD_BLCS_MASK (3 << MOD_BLCS_SHIFT)
+
+#define MOD_BLCP_SHIFT 24
+#define MOD_BLCP_16BIT (0 << MOD_BLCP_SHIFT)
+#define MOD_BLCP_8BIT (1 << MOD_BLCP_SHIFT)
+#define MOD_BLCP_24BIT (2 << MOD_BLCP_SHIFT)
+#define MOD_BLCP_MASK (3 << MOD_BLCP_SHIFT)
+
+#define MOD_C2DD_HHALF (1 << 21) /* Discard Higher-half */
+#define MOD_C2DD_LHALF (1 << 20) /* Discard Lower-half */
+#define MOD_C1DD_HHALF (1 << 19)
+#define MOD_C1DD_LHALF (1 << 18)
+#define MOD_DC2_EN (1 << 17)
+#define MOD_DC1_EN (1 << 16)
+#define MOD_BLC_16BIT (0 << 13)
+#define MOD_BLC_8BIT (1 << 13)
+#define MOD_BLC_24BIT (2 << 13)
+#define MOD_BLC_MASK (3 << 13)
+
+#define MOD_IMS_SYSMUX (1 << 10)
+#define MOD_SLAVE (1 << 11)
+#define MOD_TXONLY (0 << 8)
+#define MOD_RXONLY (1 << 8)
+#define MOD_TXRX (2 << 8)
+#define MOD_MASK (3 << 8)
+#define MOD_LR_LLOW (0 << 7)
+#define MOD_LR_RLOW (1 << 7)
+#define MOD_SDF_IIS (0 << 5)
+#define MOD_SDF_MSB (1 << 5)
+#define MOD_SDF_LSB (2 << 5)
+#define MOD_SDF_MASK (3 << 5)
+#define MOD_RCLK_256FS (0 << 3)
+#define MOD_RCLK_512FS (1 << 3)
+#define MOD_RCLK_384FS (2 << 3)
+#define MOD_RCLK_768FS (3 << 3)
+#define MOD_RCLK_MASK (3 << 3)
+#define MOD_BCLK_32FS (0 << 1)
+#define MOD_BCLK_48FS (1 << 1)
+#define MOD_BCLK_16FS (2 << 1)
+#define MOD_BCLK_24FS (3 << 1)
+#define MOD_BCLK_MASK (3 << 1)
+#define MOD_8BIT (1 << 0)
+
+#define MOD_CDCLKCON (1 << 12)
+
+#define PSR_PSREN (1 << 15)
+
+#define FIC_TXFLUSH (1 << 15)
+#define FIC_RXFLUSH (1 << 7)
+
+#define AHB_INTENLVL0 (1 << 24)
+#define AHB_LVL0INT (1 << 20)
+#define AHB_CLRLVL0INT (1 << 16)
+#define AHB_DMARLD (1 << 5)
+#define AHB_INTMASK (1 << 3)
+#define AHB_DMAEN (1 << 0)
+#define AHB_LVLINTMASK (0xf << 20)
+
+#define I2SSIZE_TRNMSK (0xffff)
+#define I2SSIZE_SHIFT (16)
+
+#endif /* CPU_SAMSUNG_EXYNOS5420_I2S_REGS_H */
diff --git a/src/cpu/samsung/exynos5420/mct.c b/src/cpu/samsung/exynos5420/mct.c
new file mode 100644
index 0000000000..4c5cdd1b20
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/mct.c
@@ -0,0 +1,104 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2012 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <arch/io.h>
+#include "clk.h"
+
+struct __attribute__((packed)) mct_regs
+{
+ uint32_t mct_cfg;
+ uint8_t reserved0[0xfc];
+ uint32_t g_cnt_l;
+ uint32_t g_cnt_u;
+ uint8_t reserved1[0x8];
+ uint32_t g_cnt_wstat;
+ uint8_t reserved2[0xec];
+ uint32_t g_comp0_l;
+ uint32_t g_comp0_u;
+ uint32_t g_comp0_addr_incr;
+ uint8_t reserved3[0x4];
+ uint32_t g_comp1_l;
+ uint32_t g_comp1_u;
+ uint32_t g_comp1_addr_incr;
+ uint8_t reserved4[0x4];
+ uint32_t g_comp2_l;
+ uint32_t g_comp2_u;
+ uint32_t g_comp2_addr_incr;
+ uint8_t reserved5[0x4];
+ uint32_t g_comp3_l;
+ uint32_t g_comp3_u;
+ uint32_t g_comp3_addr_incr;
+ uint8_t reserved6[0x4];
+ uint32_t g_tcon;
+ uint32_t g_int_cstat;
+ uint32_t g_int_enb;
+ uint32_t g_wstat;
+ uint8_t reserved7[0xb0];
+ uint32_t l0_tcntb;
+ uint32_t l0_tcnto;
+ uint32_t l0_icntb;
+ uint32_t l0_icnto;
+ uint32_t l0_frcntb;
+ uint32_t l0_frcnto;
+ uint8_t reserved8[0x8];
+ uint32_t l0_tcon;
+ uint8_t reserved9[0xc];
+ uint32_t l0_int_cstat;
+ uint32_t l0_int_enb;
+ uint8_t reserved10[0x8];
+ uint32_t l0_wstat;
+ uint8_t reserved11[0xbc];
+ uint32_t l1_tcntb;
+ uint32_t l1_tcnto;
+ uint32_t l1_icntb;
+ uint32_t l1_icnto;
+ uint32_t l1_frcntb;
+ uint32_t l1_frcnto;
+ uint8_t reserved12[0x8];
+ uint32_t l1_tcon;
+ uint8_t reserved13[0xc];
+ uint32_t l1_int_cstat;
+ uint32_t l1_int_enb;
+ uint8_t reserved14[0x8];
+ uint32_t l1_wstat;
+};
+
+static int enabled = 0;
+static struct mct_regs *const mct =
+ (struct mct_regs *)MCT_ADDRESS;
+
+uint64_t mct_raw_value(void)
+{
+ if (!enabled) {
+ writel(readl(&mct->g_tcon) | (0x1 << 8), &mct->g_tcon);
+ enabled = 1;
+ }
+
+ uint64_t upper = readl(&mct->g_cnt_u);
+ uint64_t lower = readl(&mct->g_cnt_l);
+
+ return (upper << 32) | lower;
+}
+
+void mct_start(void)
+{
+ writel(readl(&mct->g_tcon) | (0x1 << 8), &mct->g_tcon);
+ enabled = 1;
+}
diff --git a/src/cpu/samsung/exynos5420/monotonic_timer.c b/src/cpu/samsung/exynos5420/monotonic_timer.c
new file mode 100644
index 0000000000..6350af536f
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/monotonic_timer.c
@@ -0,0 +1,57 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <delay.h>
+#include <timer.h>
+
+#include "clk.h"
+
+static struct monotonic_counter {
+ int initialized;
+ struct mono_time time;
+ uint64_t last_value;
+} mono_counter;
+
+static const uint32_t clocks_per_usec = MCT_HZ/1000000;
+
+void timer_monotonic_get(struct mono_time *mt)
+{
+ uint64_t current_tick;
+ uint64_t usecs_elapsed;
+
+ if (!mono_counter.initialized) {
+ init_timer();
+ mono_counter.last_value = mct_raw_value();
+ mono_counter.initialized = 1;
+ }
+
+ current_tick = mct_raw_value();
+ usecs_elapsed = (current_tick - mono_counter.last_value) /
+ clocks_per_usec;
+
+ /* Update current time and tick values only if a full tick occurred. */
+ if (usecs_elapsed) {
+ mono_time_add_usecs(&mono_counter.time, usecs_elapsed);
+ mono_counter.last_value = current_tick;
+ }
+
+ /* Save result. */
+ *mt = mono_counter.time;
+}
diff --git a/src/cpu/samsung/exynos5420/periph.h b/src/cpu/samsung/exynos5420/periph.h
new file mode 100644
index 0000000000..39816624c2
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/periph.h
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2012 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_PERIPH_H
+#define CPU_SAMSUNG_EXYNOS5420_PERIPH_H
+
+/*
+ * Peripherals requiring clock/pinmux configuration. List will
+ * grow with support for more devices getting added.
+ *
+ * At present the order is arbitrary - we may be able to take advantage
+ * of some orthogonality later.
+ */
+enum periph_id {
+ PERIPH_ID_UART0,
+ PERIPH_ID_UART1,
+ PERIPH_ID_UART2,
+ PERIPH_ID_UART3,
+ PERIPH_ID_SDMMC0,
+ PERIPH_ID_SDMMC1,
+ PERIPH_ID_SDMMC2,
+ PERIPH_ID_SDMMC3,
+
+ PERIPH_ID_SROMC = 9,
+ PERIPH_ID_SPI0,
+ PERIPH_ID_SPI1,
+ PERIPH_ID_SPI2,
+ PERIPH_ID_SPI3,
+ PERIPH_ID_SPI4,
+ PERIPH_ID_LCD,
+ PERIPH_ID_BACKLIGHT,
+ PERIPH_ID_I2C0,
+ PERIPH_ID_I2C1,
+ PERIPH_ID_I2C2,
+ PERIPH_ID_I2C3,
+ PERIPH_ID_I2C4,
+ PERIPH_ID_I2C5,
+ PERIPH_ID_I2C6,
+ PERIPH_ID_I2C7,
+ PERIPH_ID_DPHPD, /* eDP hot plug detect */
+ PERIPH_ID_PWM0,
+ PERIPH_ID_PWM1,
+ PERIPH_ID_PWM2,
+ PERIPH_ID_PWM3,
+ PERIPH_ID_PWM4,
+ PERIPH_ID_I2S1,
+ PERIPH_ID_SATA,
+
+ PERIPH_ID_COUNT,
+ PERIPH_ID_NONE = -1,
+};
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/pinmux.c b/src/cpu/samsung/exynos5420/pinmux.c
new file mode 100644
index 0000000000..6991dfc5c7
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/pinmux.c
@@ -0,0 +1,298 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <assert.h>
+#include "gpio.h"
+#include "cpu.h"
+#include "pinmux.h"
+
+int exynos_pinmux_config(enum periph_id peripheral, int flags)
+{
+ int i, start, count, start_ext, pin_ext, pin, drv;
+
+ switch (peripheral) {
+ case PERIPH_ID_UART0:
+ case PERIPH_ID_UART1:
+ case PERIPH_ID_UART2:
+ case PERIPH_ID_UART3:
+ switch (peripheral) {
+ default:
+ case PERIPH_ID_UART0:
+ start = GPIO_A00; count = 4;
+ break;
+ case PERIPH_ID_UART1:
+ start = GPIO_A04; count = 4;
+ break;
+ case PERIPH_ID_UART2:
+ start = GPIO_A10; count = 4;
+ break;
+ case PERIPH_ID_UART3:
+ start = GPIO_A14; count = 2;
+ break;
+ }
+ for (i = start; i < start + count; i++) {
+ gpio_set_pull(i, GPIO_PULL_NONE);
+ gpio_cfg_pin(i, GPIO_FUNC(0x2));
+ }
+ break;
+ case PERIPH_ID_SDMMC0:
+ case PERIPH_ID_SDMMC1:
+ case PERIPH_ID_SDMMC2:
+ case PERIPH_ID_SDMMC3:
+ pin = GPIO_FUNC(0x2);
+ pin_ext = GPIO_FUNC(0x2);
+ drv = GPIO_DRV_4X;
+ switch (peripheral) {
+ default:
+ case PERIPH_ID_SDMMC0:
+ start = GPIO_C00;
+ start_ext = GPIO_C10;
+ break;
+ case PERIPH_ID_SDMMC1:
+ start = GPIO_C20;
+ start_ext = 0;
+ break;
+ case PERIPH_ID_SDMMC2:
+ start = GPIO_C30;
+ /*
+ * TODO: (alim.akhtar@samsung.com)
+ * add support for 8 bit mode (needs to be a per-board
+ * option, so in the FDT).
+ */
+ start_ext = 0;
+ break;
+ case PERIPH_ID_SDMMC3:
+ /*
+ * TODO: Need to add defintions for GPC4 before
+ * enabling this.
+ */
+ printk(BIOS_DEBUG, "SDMMC3 not supported yet");
+ return -1;
+ }
+ if ((flags & PINMUX_FLAG_8BIT_MODE) && !start_ext) {
+ printk(BIOS_DEBUG, "SDMMC device %d does not support 8bit mode",
+ peripheral);
+ return -1;
+ }
+ if (flags & PINMUX_FLAG_8BIT_MODE) {
+ ASSERT(peripheral == PERIPH_ID_SDMMC0);
+ for (i = 0; i <= 3; i++) {
+ gpio_cfg_pin(start_ext + i, pin_ext);
+ gpio_set_pull(start_ext + i,
+ GPIO_PULL_UP);
+ gpio_set_drv(start_ext + i, drv);
+ }
+ }
+ for (i = 0; i < 2; i++) {
+ gpio_cfg_pin(start + i, pin);
+ gpio_set_pull(start + i, GPIO_PULL_NONE);
+ gpio_set_drv(start + i, drv);
+ }
+ for (i = 2; i <= 6; i++) {
+ gpio_cfg_pin(start + i, pin);
+ gpio_set_pull(start + i, GPIO_PULL_UP);
+ gpio_set_drv(start + i, drv);
+ }
+ break;
+ case PERIPH_ID_SROMC:
+ /*
+ * SROM:CS1 and EBI
+ *
+ * GPY0[0] SROM_CSn[0]
+ * GPY0[1] SROM_CSn[1](2)
+ * GPY0[2] SROM_CSn[2]
+ * GPY0[3] SROM_CSn[3]
+ * GPY0[4] EBI_OEn(2)
+ * GPY0[5] EBI_EEn(2)
+ *
+ * GPY1[0] EBI_BEn[0](2)
+ * GPY1[1] EBI_BEn[1](2)
+ * GPY1[2] SROM_WAIT(2)
+ * GPY1[3] EBI_DATA_RDn(2)
+ */
+ gpio_cfg_pin(GPIO_Y00 + (flags & PINMUX_FLAG_BANK),
+ GPIO_FUNC(2));
+ gpio_cfg_pin(GPIO_Y04, GPIO_FUNC(2));
+ gpio_cfg_pin(GPIO_Y05, GPIO_FUNC(2));
+
+ for (i = 2; i < 4; i++)
+ gpio_cfg_pin(GPIO_Y10 + i, GPIO_FUNC(2));
+
+ /*
+ * EBI: 8 Addrss Lines
+ *
+ * GPY3[0] EBI_ADDR[0](2)
+ * GPY3[1] EBI_ADDR[1](2)
+ * GPY3[2] EBI_ADDR[2](2)
+ * GPY3[3] EBI_ADDR[3](2)
+ * GPY3[4] EBI_ADDR[4](2)
+ * GPY3[5] EBI_ADDR[5](2)
+ * GPY3[6] EBI_ADDR[6](2)
+ * GPY3[7] EBI_ADDR[7](2)
+ *
+ * EBI: 16 Data Lines
+ *
+ * GPY5[0] EBI_DATA[0](2)
+ * GPY5[1] EBI_DATA[1](2)
+ * GPY5[2] EBI_DATA[2](2)
+ * GPY5[3] EBI_DATA[3](2)
+ * GPY5[4] EBI_DATA[4](2)
+ * GPY5[5] EBI_DATA[5](2)
+ * GPY5[6] EBI_DATA[6](2)
+ * GPY5[7] EBI_DATA[7](2)
+ *
+ * GPY6[0] EBI_DATA[8](2)
+ * GPY6[1] EBI_DATA[9](2)
+ * GPY6[2] EBI_DATA[10](2)
+ * GPY6[3] EBI_DATA[11](2)
+ * GPY6[4] EBI_DATA[12](2)
+ * GPY6[5] EBI_DATA[13](2)
+ * GPY6[6] EBI_DATA[14](2)
+ * GPY6[7] EBI_DATA[15](2)
+ */
+ for (i = 0; i < 8; i++) {
+ gpio_cfg_pin(GPIO_Y30 + i, GPIO_FUNC(2));
+ gpio_set_pull(GPIO_Y30 + i, GPIO_PULL_UP);
+
+ gpio_cfg_pin(GPIO_Y50 + i, GPIO_FUNC(2));
+ gpio_set_pull(GPIO_Y50 + i, GPIO_PULL_UP);
+
+ if (flags & PINMUX_FLAG_16BIT) {
+ gpio_cfg_pin(GPIO_Y60 + i, GPIO_FUNC(2));
+ gpio_set_pull(GPIO_Y60 + i,
+ GPIO_PULL_UP);
+ }
+ }
+ break;
+ case PERIPH_ID_SPI0:
+ case PERIPH_ID_SPI1:
+ case PERIPH_ID_SPI2:
+ case PERIPH_ID_SPI3: {
+ int cfg;
+
+ switch (peripheral) {
+ default:
+ case PERIPH_ID_SPI0:
+ start = GPIO_A20;
+ cfg = 0x2;
+ break;
+ case PERIPH_ID_SPI1:
+ start = GPIO_A24;
+ cfg = 0x2;
+ break;
+ case PERIPH_ID_SPI2:
+ start = GPIO_B11;
+ cfg = 0x5;
+ break;
+ case PERIPH_ID_SPI3:
+ start = GPIO_E00;
+ cfg = 0x2;
+ break;
+ }
+
+ for (i = 0; i < 4; i++)
+ gpio_cfg_pin(start + i, GPIO_FUNC(cfg));
+ break;
+ }
+ case PERIPH_ID_SPI4:
+ for (i = 0; i < 2; i++)
+ gpio_cfg_pin(GPIO_F02 + i, GPIO_FUNC(0x4));
+ for (i = 2; i < 4; i++)
+ gpio_cfg_pin(GPIO_E02 + i, GPIO_FUNC(0x4));
+ break;
+ case PERIPH_ID_BACKLIGHT:
+ gpio_cfg_pin(GPIO_B20, GPIO_OUTPUT);
+ gpio_set_value(GPIO_B20, 1);
+ break;
+ case PERIPH_ID_LCD:
+ gpio_cfg_pin(GPIO_Y25, GPIO_OUTPUT);
+ gpio_set_value(GPIO_Y25, 1);
+ gpio_cfg_pin(GPIO_X15, GPIO_OUTPUT);
+ gpio_set_value(GPIO_X15, 1);
+ gpio_cfg_pin(GPIO_X30, GPIO_OUTPUT);
+ gpio_set_value(GPIO_X30, 1);
+ break;
+ case PERIPH_ID_I2C0:
+ gpio_cfg_pin(GPIO_B30, GPIO_FUNC(0x2));
+ gpio_cfg_pin(GPIO_B31, GPIO_FUNC(0x2));
+ gpio_set_pull(GPIO_B30, GPIO_PULL_NONE);
+ gpio_set_pull(GPIO_B31, GPIO_PULL_NONE);
+ break;
+ case PERIPH_ID_I2C1:
+ gpio_cfg_pin(GPIO_B32, GPIO_FUNC(0x2));
+ gpio_cfg_pin(GPIO_B33, GPIO_FUNC(0x2));
+ gpio_set_pull(GPIO_B32, GPIO_PULL_NONE);
+ gpio_set_pull(GPIO_B33, GPIO_PULL_NONE);
+ break;
+ case PERIPH_ID_I2C2:
+ gpio_cfg_pin(GPIO_A06, GPIO_FUNC(0x3));
+ gpio_cfg_pin(GPIO_A07, GPIO_FUNC(0x3));
+ gpio_set_pull(GPIO_A06, GPIO_PULL_NONE);
+ gpio_set_pull(GPIO_A07, GPIO_PULL_NONE);
+ break;
+ case PERIPH_ID_I2C3:
+ gpio_cfg_pin(GPIO_A12, GPIO_FUNC(0x3));
+ gpio_cfg_pin(GPIO_A13, GPIO_FUNC(0x3));
+ gpio_set_pull(GPIO_A12, GPIO_PULL_NONE);
+ gpio_set_pull(GPIO_A13, GPIO_PULL_NONE);
+ break;
+ case PERIPH_ID_I2C4:
+ gpio_cfg_pin(GPIO_A20, GPIO_FUNC(0x3));
+ gpio_cfg_pin(GPIO_A21, GPIO_FUNC(0x3));
+ gpio_set_pull(GPIO_A20, GPIO_PULL_NONE);
+ gpio_set_pull(GPIO_A21, GPIO_PULL_NONE);
+ break;
+ case PERIPH_ID_I2C5:
+ gpio_cfg_pin(GPIO_A22, GPIO_FUNC(0x3));
+ gpio_cfg_pin(GPIO_A23, GPIO_FUNC(0x3));
+ gpio_set_pull(GPIO_A22, GPIO_PULL_NONE);
+ gpio_set_pull(GPIO_A23, GPIO_PULL_NONE);
+ break;
+ case PERIPH_ID_I2C6:
+ gpio_cfg_pin(GPIO_B13, GPIO_FUNC(0x4));
+ gpio_cfg_pin(GPIO_B14, GPIO_FUNC(0x4));
+ break;
+ case PERIPH_ID_I2C7:
+ gpio_cfg_pin(GPIO_B22, GPIO_FUNC(0x3));
+ gpio_cfg_pin(GPIO_B23, GPIO_FUNC(0x3));
+ gpio_set_pull(GPIO_B22, GPIO_PULL_NONE);
+ gpio_set_pull(GPIO_B23, GPIO_PULL_NONE);
+ break;
+ case PERIPH_ID_DPHPD:
+ /* Set Hotplug detect for DP */
+ gpio_cfg_pin(GPIO_X07, GPIO_FUNC(0x3));
+
+ /*
+ * Hotplug detect should have an external pullup; disable the
+ * internal pulldown so they don't fight.
+ */
+ gpio_set_pull(GPIO_X07, GPIO_PULL_NONE);
+ break;
+ case PERIPH_ID_I2S1:
+ for (i = 0; i < 5; i++)
+ gpio_cfg_pin(GPIO_B00 + i, GPIO_FUNC(0x02));
+ break;
+ default:
+ printk(BIOS_DEBUG, "%s: invalid peripheral %d", __func__, peripheral);
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/src/cpu/samsung/exynos5420/pinmux.h b/src/cpu/samsung/exynos5420/pinmux.h
new file mode 100644
index 0000000000..c94b6eb9a1
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/pinmux.h
@@ -0,0 +1,55 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_PINMUX_H
+#define CPU_SAMSUNG_EXYNOS5420_PINMUX_H
+
+#include "periph.h"
+
+enum {
+ PINMUX_FLAG_NONE = 0x00000000,
+
+ /* Flags for eMMC */
+ PINMUX_FLAG_8BIT_MODE = 1 << 0, /* SDMMC 8-bit mode */
+
+ /*
+ * Flags for SPI.
+ */
+ PINMUX_FLAG_SLAVE_MODE = 1 << 0, /* Slave mode */
+
+ /* Flags for SROM controller */
+ PINMUX_FLAG_BANK = 3 << 0, /* bank number (0-3) */
+ PINMUX_FLAG_16BIT = 1 << 2, /* 16-bit width */
+};
+
+/**
+ * Configures the pinmux for a particular peripheral.
+ *
+ * Each gpio can be configured in many different ways (4 bits on exynos)
+ * such as "input", "output", "special function", "external interrupt"
+ * etc. This function will configure the peripheral pinmux along with
+ * pull-up/down and drive strength.
+ *
+ * @param peripheral peripheral to be configured
+ * @param flags configure flags
+ * @return 0 if ok, -1 on error (e.g. unsupported peripheral)
+ */
+int exynos_pinmux_config(enum periph_id peripheral, int flags);
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/power.c b/src/cpu/samsung/exynos5420/power.c
new file mode 100644
index 0000000000..029efc98fb
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/power.c
@@ -0,0 +1,138 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Power setup code for EXYNOS5 */
+
+#include <console/console.h>
+#include <arch/io.h>
+#include <arch/hlt.h>
+#include "cpu.h"
+#include "power.h"
+#include "sysreg.h"
+
+static void ps_hold_setup(void)
+{
+ struct exynos5_power *power =
+ samsung_get_base_power();
+
+ /* Set PS-Hold high */
+ setbits_le32(&power->ps_hold_ctrl, POWER_PS_HOLD_CONTROL_DATA_HIGH);
+}
+
+void power_reset(void)
+{
+ struct exynos5_power *power =
+ samsung_get_base_power();
+
+ /* Clear inform1 so there's no change we think we've got a wake reset */
+ power->inform1 = 0;
+
+ setbits_le32(&power->sw_reset, 1);
+}
+
+/* This function never returns */
+void power_shutdown(void)
+{
+ struct exynos5_power *power =
+ samsung_get_base_power();
+
+ clrbits_le32(&power->ps_hold_ctrl, POWER_PS_HOLD_CONTROL_DATA_HIGH);
+
+ hlt();
+}
+
+void power_enable_dp_phy(void)
+{
+ struct exynos5_power *power =
+ samsung_get_base_power();
+
+ setbits_le32(&power->dptx_phy_control, DPTX_PHY_ENABLE);
+}
+
+void power_enable_usb_phy(void)
+{
+ struct exynos5_sysreg *sysreg =
+ samsung_get_base_sysreg();
+ struct exynos5_power *power =
+ samsung_get_base_power();
+ unsigned int phy_cfg;
+
+ /* Setting USB20PHY_CONFIG register to USB 2.0 HOST link */
+ phy_cfg = readl(&sysreg->usb20_phy_cfg);
+ if (phy_cfg & USB20_PHY_CFG_EN) {
+ printk(BIOS_DEBUG, "USB 2.0 HOST link already selected\n");
+ } else {
+ phy_cfg |= USB20_PHY_CFG_EN;
+ writel(phy_cfg, &sysreg->usb20_phy_cfg);
+ }
+
+ /* Enabling USBHOST_PHY */
+ setbits_le32(&power->usb_host_phy_ctrl, POWER_USB_HOST_PHY_CTRL_EN);
+}
+
+void power_disable_usb_phy(void)
+{
+ struct exynos5_power *power =
+ samsung_get_base_power();
+
+ /* Disabling USBHost_PHY */
+ clrbits_le32(&power->usb_host_phy_ctrl, POWER_USB_HOST_PHY_CTRL_EN);
+}
+
+void power_enable_hw_thermal_trip(void)
+{
+ struct exynos5_power *power =
+ samsung_get_base_power();
+
+ /* Enable HW thermal trip */
+ setbits_le32(&power->ps_hold_ctrl, POWER_ENABLE_HW_TRIP);
+}
+
+uint32_t power_read_reset_status(void)
+{
+ struct exynos5_power *power =
+ samsung_get_base_power();
+
+ return power->inform1;
+}
+
+void power_exit_wakeup(void)
+{
+ struct exynos5_power *power =
+ samsung_get_base_power();
+ typedef void (*resume_func)(void);
+
+ ((resume_func)power->inform0)();
+}
+
+int power_init(void)
+{
+ ps_hold_setup();
+ return 0;
+}
+
+void power_enable_xclkout(void)
+{
+ struct exynos5_power *power =
+ samsung_get_base_power();
+
+ /* use xxti for xclk out */
+ clrsetbits_le32(&power->pmu_debug, PMU_DEBUG_CLKOUT_SEL_MASK,
+ PMU_DEBUG_XXTI);
+}
diff --git a/src/cpu/samsung/exynos5420/power.h b/src/cpu/samsung/exynos5420/power.h
new file mode 100644
index 0000000000..3c019d6dc5
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/power.h
@@ -0,0 +1,90 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Register map for Exynos5 PMU */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_POWER_H
+#define CPU_SAMSUNG_EXYNOS5420_POWER_H
+
+/* Enable HW thermal trip with PS_HOLD_CONTROL register ENABLE_HW_TRIP bit */
+void power_enable_hw_thermal_trip(void);
+
+#define MIPI_PHY1_CONTROL_ENABLE (1 << 0)
+#define MIPI_PHY1_CONTROL_M_RESETN (1 << 2)
+
+#define POWER_USB_HOST_PHY_CTRL_EN (1 << 0)
+#define POWER_PS_HOLD_CONTROL_DATA_HIGH (1 << 8)
+#define POWER_ENABLE_HW_TRIP (1UL << 31)
+
+#define DPTX_PHY_ENABLE (1 << 0)
+
+/* PMU_DEBUG bits [12:8] = 0x1000 selects XXTI clock source */
+#define PMU_DEBUG_XXTI 0x1000
+/* Mask bit[12:8] for xxti clock selection */
+#define PMU_DEBUG_CLKOUT_SEL_MASK 0x1f00
+
+/* Power Management Unit register map */
+struct exynos5_power {
+ /* Add registers as and when required */
+ uint8_t reserved1[0x0400];
+ uint32_t sw_reset; /* 0x0400 */
+ uint8_t reserved2[0x0304];
+ uint32_t usb_host_phy_ctrl; /* 0x0708 */
+ uint8_t reserved3[0x8];
+ uint32_t mipi_phy1_control; /* 0x0714 */
+ uint8_t reserved4[0x8];
+ uint32_t dptx_phy_control; /* 0x0720 */
+ uint8_t reserved5[0xdc];
+ uint32_t inform0; /* 0x0800 */
+ uint32_t inform1; /* 0x0804 */
+ uint8_t reserved6[0x1f8];
+ uint32_t pmu_debug; /* 0x0A00*/
+ uint8_t reserved7[0x2908];
+ uint32_t ps_hold_ctrl; /* 0x330c */
+} __attribute__ ((__packed__));
+
+/**
+ * Perform a software reset.
+ */
+void power_reset(void);
+
+/**
+ * Power off the system; it should never return.
+ */
+void power_shutdown(void);
+
+/* Enable DPTX PHY */
+void power_enable_dp_phy(void);
+
+void power_enable_usb_phy(void);
+void power_disable_usb_phy(void);
+
+/* Initialize the pmic voltages to power up the system */
+int power_init(void);
+
+/* Read the reset status. */
+uint32_t power_read_reset_status(void);
+
+/* Read the resume function and call it. */
+void power_exit_wakeup(void);
+
+/* pmu debug is used for xclkout, enable xclkout with source as XXTI */
+void power_enable_xclkout(void);
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/pwm.c b/src/cpu/samsung/exynos5420/pwm.c
new file mode 100644
index 0000000000..34fc2b1319
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/pwm.c
@@ -0,0 +1,191 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include "clk.h"
+#include "cpu.h"
+#include "periph.h"
+#include "pwm.h"
+
+int pwm_enable(int pwm_id)
+{
+ const struct s5p_timer *pwm =
+ samsung_get_base_timer();
+ unsigned long tcon;
+
+ tcon = readl(&pwm->tcon);
+ tcon |= TCON_START(pwm_id);
+
+ writel(tcon, &pwm->tcon);
+
+ return 0;
+}
+
+int pwm_check_enabled(int pwm_id)
+{
+ const struct s5p_timer *pwm =
+ samsung_get_base_timer();
+ const unsigned long tcon = readl(&pwm->tcon);
+
+ return tcon & TCON_START(pwm_id);
+}
+
+void pwm_disable(int pwm_id)
+{
+ const struct s5p_timer *pwm =
+ samsung_get_base_timer();
+ unsigned long tcon;
+
+ tcon = readl(&pwm->tcon);
+ tcon &= ~TCON_START(pwm_id);
+
+ writel(tcon, &pwm->tcon);
+}
+
+static unsigned long pwm_calc_tin(int pwm_id, unsigned long freq)
+{
+ unsigned long tin_parent_rate;
+ unsigned int div;
+
+ tin_parent_rate = clock_get_periph_rate(PERIPH_ID_PWM0);
+
+ for (div = 2; div <= 16; div *= 2) {
+ if ((tin_parent_rate / (div << 16)) < freq)
+ return tin_parent_rate / div;
+ }
+
+ return tin_parent_rate / 16;
+}
+
+#define NS_IN_SEC 1000000000UL
+
+int pwm_config(int pwm_id, int duty_ns, int period_ns)
+{
+ const struct s5p_timer *pwm =
+ samsung_get_base_timer();
+ unsigned int offset;
+ unsigned long tin_rate;
+ unsigned long tin_ns;
+ unsigned long frequency;
+ unsigned long tcon;
+ unsigned long tcnt;
+ unsigned long tcmp;
+
+ /*
+ * We currently avoid using 64bit arithmetic by using the
+ * fact that anything faster than 1GHz is easily representable
+ * by 32bits.
+ */
+ if (period_ns > NS_IN_SEC || duty_ns > NS_IN_SEC || period_ns == 0)
+ return -1;
+
+ if (duty_ns > period_ns)
+ return -1;
+
+ frequency = NS_IN_SEC / period_ns;
+
+ /* Check to see if we are changing the clock rate of the PWM */
+ tin_rate = pwm_calc_tin(pwm_id, frequency);
+
+ tin_ns = NS_IN_SEC / tin_rate;
+ tcnt = period_ns / tin_ns;
+
+ /* Note, counters count down */
+ tcmp = duty_ns / tin_ns;
+ tcmp = tcnt - tcmp;
+
+ /* Update the PWM register block. */
+ offset = pwm_id * 3;
+ if (pwm_id < 4) {
+ writel(tcnt, &pwm->tcntb0 + offset);
+ writel(tcmp, &pwm->tcmpb0 + offset);
+ }
+
+ tcon = readl(&pwm->tcon);
+ tcon |= TCON_UPDATE(pwm_id);
+ if (pwm_id < 4)
+ tcon |= TCON_AUTO_RELOAD(pwm_id);
+ else
+ tcon |= TCON4_AUTO_RELOAD;
+ writel(tcon, &pwm->tcon);
+
+ tcon &= ~TCON_UPDATE(pwm_id);
+ writel(tcon, &pwm->tcon);
+
+ return 0;
+}
+
+int pwm_init(int pwm_id, int div, int invert)
+{
+ u32 val;
+ const struct s5p_timer *pwm =
+ samsung_get_base_timer();
+ unsigned long ticks_per_period;
+ unsigned int offset, prescaler;
+
+ /*
+ * Timer Freq(HZ) =
+ * PWM_CLK / { (prescaler_value + 1) * (divider_value) }
+ */
+
+ val = readl(&pwm->tcfg0);
+ if (pwm_id < 2) {
+ prescaler = PRESCALER_0;
+ val &= ~0xff;
+ val |= (prescaler & 0xff);
+ } else {
+ prescaler = PRESCALER_1;
+ val &= ~(0xff << 8);
+ val |= (prescaler & 0xff) << 8;
+ }
+ writel(val, &pwm->tcfg0);
+ val = readl(&pwm->tcfg1);
+ val &= ~(0xf << MUX_DIV_SHIFT(pwm_id));
+ val |= (div & 0xf) << MUX_DIV_SHIFT(pwm_id);
+ writel(val, &pwm->tcfg1);
+
+
+ if (pwm_id == 4) {
+ /*
+ * TODO(sjg): Use this as a countdown timer for now. We count
+ * down from the maximum value to 0, then reset.
+ */
+ ticks_per_period = -1UL;
+ } else {
+ const unsigned long pwm_hz = 1000;
+ unsigned long timer_rate_hz = clock_get_periph_rate(
+ PERIPH_ID_PWM0) / ((prescaler + 1) * (1 << div));
+
+ ticks_per_period = timer_rate_hz / pwm_hz;
+ }
+
+ /* set count value */
+ offset = pwm_id * 3;
+
+ writel(ticks_per_period, &pwm->tcntb0 + offset);
+
+ val = readl(&pwm->tcon) & ~(0xf << TCON_OFFSET(pwm_id));
+ if (invert && (pwm_id < 4))
+ val |= TCON_INVERTER(pwm_id);
+ writel(val, &pwm->tcon);
+
+ pwm_enable(pwm_id);
+
+ return 0;
+}
diff --git a/src/cpu/samsung/exynos5420/pwm.h b/src/cpu/samsung/exynos5420/pwm.h
new file mode 100644
index 0000000000..430006143d
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/pwm.h
@@ -0,0 +1,70 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_PWM_H
+#define CPU_SAMSUNG_EXYNOS5420_PWM_H
+
+#define PRESCALER_0 (8 - 1) /* prescaler of timer 0, 1 */
+#define PRESCALER_1 (16 - 1) /* prescaler of timer 2, 3, 4 */
+
+/* Divider MUX */
+#define MUX_DIV_1 0 /* 1/1 period */
+#define MUX_DIV_2 1 /* 1/2 period */
+#define MUX_DIV_4 2 /* 1/4 period */
+#define MUX_DIV_8 3 /* 1/8 period */
+#define MUX_DIV_16 4 /* 1/16 period */
+
+#define MUX_DIV_SHIFT(x) (x * 4)
+
+#define TCON_OFFSET(x) ((x + 1) * (!!x) << 2)
+
+#define TCON_START(x) (1 << TCON_OFFSET(x))
+#define TCON_UPDATE(x) (1 << (TCON_OFFSET(x) + 1))
+#define TCON_INVERTER(x) (1 << (TCON_OFFSET(x) + 2))
+#define TCON_AUTO_RELOAD(x) (1 << (TCON_OFFSET(x) + 3))
+#define TCON4_AUTO_RELOAD (1 << 22)
+
+struct s5p_timer {
+ unsigned int tcfg0;
+ unsigned int tcfg1;
+ unsigned int tcon;
+ unsigned int tcntb0;
+ unsigned int tcmpb0;
+ unsigned int tcnto0;
+ unsigned int tcntb1;
+ unsigned int tcmpb1;
+ unsigned int tcnto1;
+ unsigned int tcntb2;
+ unsigned int tcmpb2;
+ unsigned int tcnto2;
+ unsigned int tcntb3;
+ unsigned int tcmpb3;
+ unsigned int tcnto3;
+ unsigned int tcntb4;
+ unsigned int tcnto4;
+ unsigned int tintcstat;
+};
+
+int pwm_config(int pwm_id, int duty_ns, int period_ns);
+int pwm_check_enabled(int pwm_id);
+void pwm_disable(int pwm_id);
+int pwm_enable(int pwm_id);
+int pwm_init(int pwm_id, int div, int invert);
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/reset.c b/src/cpu/samsung/exynos5420/reset.c
new file mode 100644
index 0000000000..78571ba9de
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/reset.c
@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <reset.h>
+#include <arch/io.h>
+
+void soft_reset(void)
+{
+ writel(0x1, samsung_get_base_swreset());
+}
diff --git a/src/cpu/samsung/exynos5420/setup.h b/src/cpu/samsung/exynos5420/setup.h
new file mode 100644
index 0000000000..7a779ba81b
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/setup.h
@@ -0,0 +1,753 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Machine Specific Values for SMDK5420 board based on Exynos5 */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_SETUP_H
+#define CPU_SAMSUNG_EXYNOS5420_SETUP_H
+
+struct exynos5_dmc;
+enum ddr_mode;
+struct exynos5_phy_control;
+
+/* TZPC : Register Offsets */
+#define TZPC0_BASE 0x10100000
+#define TZPC1_BASE 0x10110000
+#define TZPC2_BASE 0x10120000
+#define TZPC3_BASE 0x10130000
+#define TZPC4_BASE 0x10140000
+#define TZPC5_BASE 0x10150000
+#define TZPC6_BASE 0x10160000
+#define TZPC7_BASE 0x10170000
+#define TZPC8_BASE 0x10180000
+#define TZPC9_BASE 0x10190000
+
+/* APLL_CON1 */
+#define APLL_CON1_VAL (0x00203800)
+
+/* MPLL_CON1 */
+#define MPLL_CON1_VAL (0x00203800)
+
+/* CPLL_CON1 */
+#define CPLL_CON1_VAL (0x00203800)
+
+/* GPLL_CON1 */
+#define GPLL_CON1_VAL (0x00203800)
+
+/* EPLL_CON1, CON2 */
+#define EPLL_CON1_VAL 0x00000000
+#define EPLL_CON2_VAL 0x00000080
+
+/* VPLL_CON1, CON2 */
+#define VPLL_CON1_VAL 0x00000000
+#define VPLL_CON2_VAL 0x00000080
+
+/* BPLL_CON1 */
+#define BPLL_CON1_VAL 0x00203800
+
+/* Set PLL */
+#define set_pll(mdiv, pdiv, sdiv) (1<<31 | mdiv<<16 | pdiv<<8 | sdiv)
+
+/* CLK_SRC_CPU */
+/* 0 = MOUTAPLL, 1 = SCLKMPLL */
+#define MUX_HPM_SEL 0
+#define MUX_CPU_SEL 0
+#define MUX_APLL_SEL 1
+
+#define CLK_SRC_CPU_VAL ((MUX_HPM_SEL << 20) \
+ | (MUX_CPU_SEL << 16) \
+ | (MUX_APLL_SEL))
+
+/* MEMCONTROL register bit fields */
+#define DMC_MEMCONTROL_CLK_STOP_DISABLE (0 << 0)
+#define DMC_MEMCONTROL_DPWRDN_DISABLE (0 << 1)
+#define DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE (0 << 2)
+#define DMC_MEMCONTROL_TP_DISABLE (0 << 4)
+#define DMC_MEMCONTROL_DSREF_DISABLE (0 << 5)
+#define DMC_MEMCONTROL_DSREF_ENABLE (1 << 5)
+#define DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(x) (x << 6)
+
+#define DMC_MEMCONTROL_MEM_TYPE_LPDDR3 (7 << 8)
+#define DMC_MEMCONTROL_MEM_TYPE_DDR3 (6 << 8)
+#define DMC_MEMCONTROL_MEM_TYPE_LPDDR2 (5 << 8)
+
+#define DMC_MEMCONTROL_MEM_WIDTH_32BIT (2 << 12)
+
+#define DMC_MEMCONTROL_NUM_CHIP_1 (0 << 16)
+#define DMC_MEMCONTROL_NUM_CHIP_2 (1 << 16)
+
+#define DMC_MEMCONTROL_BL_8 (3 << 20)
+#define DMC_MEMCONTROL_BL_4 (2 << 20)
+
+#define DMC_MEMCONTROL_PZQ_DISABLE (0 << 24)
+
+#define DMC_MEMCONTROL_MRR_BYTE_7_0 (0 << 25)
+#define DMC_MEMCONTROL_MRR_BYTE_15_8 (1 << 25)
+#define DMC_MEMCONTROL_MRR_BYTE_23_16 (2 << 25)
+#define DMC_MEMCONTROL_MRR_BYTE_31_24 (3 << 25)
+
+/* MEMCONFIG0 register bit fields */
+#define DMC_MEMCONFIGx_CHIP_MAP_INTERLEAVED (1 << 12)
+#define DMC_MEMCONFIGx_CHIP_COL_10 (3 << 8)
+#define DMC_MEMCONFIGx_CHIP_ROW_14 (2 << 4)
+#define DMC_MEMCONFIGx_CHIP_ROW_15 (3 << 4)
+#define DMC_MEMCONFIGx_CHIP_BANK_8 (3 << 0)
+
+#define DMC_MEMBASECONFIGx_CHIP_BASE(x) (x << 16)
+#define DMC_MEMBASECONFIGx_CHIP_MASK(x) (x << 0)
+#define DMC_MEMBASECONFIG_VAL(x) ( \
+ DMC_MEMBASECONFIGx_CHIP_BASE(x) | \
+ DMC_MEMBASECONFIGx_CHIP_MASK(0x780) \
+)
+
+#define DMC_MEMBASECONFIG0_VAL DMC_MEMBASECONFIG_VAL(0x40)
+#define DMC_MEMBASECONFIG1_VAL DMC_MEMBASECONFIG_VAL(0x80)
+
+#define DMC_PRECHCONFIG_VAL 0xFF000000
+#define DMC_PWRDNCONFIG_VAL 0xFFFF00FF
+
+#define DMC_CONCONTROL_RESET_VAL 0x0FFF0000
+#define DFI_INIT_START (1 << 28)
+#define EMPTY (1 << 8)
+#define AREF_EN (1 << 5)
+
+#define DFI_INIT_COMPLETE_CHO (1 << 2)
+#define DFI_INIT_COMPLETE_CH1 (1 << 3)
+
+#define RDLVL_COMPLETE_CHO (1 << 14)
+#define RDLVL_COMPLETE_CH1 (1 << 15)
+
+#define CLK_STOP_EN (1 << 0)
+#define DPWRDN_EN (1 << 1)
+#define DSREF_EN (1 << 5)
+
+/* COJCONTROL register bit fields */
+#define DMC_CONCONTROL_IO_PD_CON_DISABLE (0 << 3)
+#define DMC_CONCONTROL_AREF_EN_DISABLE (0 << 5)
+#define DMC_CONCONTROL_EMPTY_DISABLE (0 << 8)
+#define DMC_CONCONTROL_EMPTY_ENABLE (1 << 8)
+#define DMC_CONCONTROL_RD_FETCH_DISABLE (0x0 << 12)
+#define DMC_CONCONTROL_TIMEOUT_LEVEL0 (0xFFF << 16)
+#define DMC_CONCONTROL_DFI_INIT_START_DISABLE (0 << 28)
+
+/* CLK_DIV_CPU0_VAL */
+#define CLK_DIV_CPU0_VAL ((ARM2_RATIO << 28) \
+ | (APLL_RATIO << 24) \
+ | (PCLK_DBG_RATIO << 20) \
+ | (ATB_RATIO << 16) \
+ | (PERIPH_RATIO << 12) \
+ | (ACP_RATIO << 8) \
+ | (CPUD_RATIO << 4) \
+ | (ARM_RATIO))
+
+
+/* CLK_FSYS */
+#define CLK_SRC_FSYS0_VAL 0x66666
+#define CLK_DIV_FSYS0_VAL 0x0BB00000
+
+/* CLK_DIV_CPU1 */
+#define HPM_RATIO 0x2
+#define COPY_RATIO 0x0
+
+/* CLK_DIV_CPU1 = 0x00000003 */
+#define CLK_DIV_CPU1_VAL ((HPM_RATIO << 4) \
+ | (COPY_RATIO))
+
+/* CLK_SRC_CORE0 */
+#define CLK_SRC_CORE0_VAL 0x00000000
+
+/* CLK_SRC_CORE1 */
+#define CLK_SRC_CORE1_VAL 0x100
+
+/* CLK_DIV_CORE0 */
+#define CLK_DIV_CORE0_VAL 0x00120000
+
+/* CLK_DIV_CORE1 */
+#define CLK_DIV_CORE1_VAL 0x07070700
+
+/* CLK_DIV_SYSRGT */
+#define CLK_DIV_SYSRGT_VAL 0x00000111
+
+/* CLK_DIV_ACP */
+#define CLK_DIV_ACP_VAL 0x12
+
+/* CLK_DIV_SYSLFT */
+#define CLK_DIV_SYSLFT_VAL 0x00000311
+
+/* CLK_SRC_CDREX */
+#define CLK_SRC_CDREX_VAL 0x1
+
+/* CLK_DIV_CDREX */
+#define MCLK_CDREX2_RATIO 0x0
+#define ACLK_EFCON_RATIO 0x1
+#define MCLK_DPHY_RATIO 0x1
+#define MCLK_CDREX_RATIO 0x1
+#define ACLK_C2C_200_RATIO 0x1
+#define C2C_CLK_400_RATIO 0x1
+#define PCLK_CDREX_RATIO 0x1
+#define ACLK_CDREX_RATIO 0x1
+
+#define CLK_DIV_CDREX_VAL ((MCLK_DPHY_RATIO << 24) \
+ | (C2C_CLK_400_RATIO << 6) \
+ | (PCLK_CDREX_RATIO << 4) \
+ | (ACLK_CDREX_RATIO))
+
+/* CLK_SRC_TOP0 */
+#define MUX_ACLK_300_GSCL_SEL 0x0
+#define MUX_ACLK_300_GSCL_MID_SEL 0x0
+#define MUX_ACLK_400_G3D_MID_SEL 0x0
+#define MUX_ACLK_333_SEL 0x0
+#define MUX_ACLK_300_DISP1_SEL 0x0
+#define MUX_ACLK_300_DISP1_MID_SEL 0x0
+#define MUX_ACLK_200_SEL 0x0
+#define MUX_ACLK_166_SEL 0x0
+#define CLK_SRC_TOP0_VAL ((MUX_ACLK_300_GSCL_SEL << 25) \
+ | (MUX_ACLK_300_GSCL_MID_SEL << 24) \
+ | (MUX_ACLK_400_G3D_MID_SEL << 20) \
+ | (MUX_ACLK_333_SEL << 16) \
+ | (MUX_ACLK_300_DISP1_SEL << 15) \
+ | (MUX_ACLK_300_DISP1_MID_SEL << 14) \
+ | (MUX_ACLK_200_SEL << 12) \
+ | (MUX_ACLK_166_SEL << 8))
+
+/* CLK_SRC_TOP1 */
+#define MUX_ACLK_400_G3D_SEL 0x1
+#define MUX_ACLK_400_ISP_SEL 0x0
+#define MUX_ACLK_400_IOP_SEL 0x0
+#define MUX_ACLK_MIPI_HSI_TXBASE_SEL 0x0
+#define MUX_ACLK_300_GSCL_MID1_SEL 0x0
+#define MUX_ACLK_300_DISP1_MID1_SEL 0x0
+#define CLK_SRC_TOP1_VAL ((MUX_ACLK_400_G3D_SEL << 28) \
+ |(MUX_ACLK_400_ISP_SEL << 24) \
+ |(MUX_ACLK_400_IOP_SEL << 20) \
+ |(MUX_ACLK_MIPI_HSI_TXBASE_SEL << 16) \
+ |(MUX_ACLK_300_GSCL_MID1_SEL << 12) \
+ |(MUX_ACLK_300_DISP1_MID1_SEL << 8))
+
+/* CLK_SRC_TOP2 */
+#define MUX_GPLL_SEL 0x1
+#define MUX_BPLL_USER_SEL 0x0
+#define MUX_MPLL_USER_SEL 0x0
+#define MUX_VPLL_SEL 0x1
+#define MUX_EPLL_SEL 0x1
+#define MUX_CPLL_SEL 0x1
+#define VPLLSRC_SEL 0x0
+#define CLK_SRC_TOP2_VAL ((MUX_GPLL_SEL << 28) \
+ | (MUX_BPLL_USER_SEL << 24) \
+ | (MUX_MPLL_USER_SEL << 20) \
+ | (MUX_VPLL_SEL << 16) \
+ | (MUX_EPLL_SEL << 12) \
+ | (MUX_CPLL_SEL << 8) \
+ | (VPLLSRC_SEL))
+/* CLK_SRC_TOP3 */
+#define MUX_ACLK_333_SUB_SEL 0x1
+#define MUX_ACLK_400_SUB_SEL 0x1
+#define MUX_ACLK_266_ISP_SUB_SEL 0x1
+#define MUX_ACLK_266_GPS_SUB_SEL 0x0
+#define MUX_ACLK_300_GSCL_SUB_SEL 0x1
+#define MUX_ACLK_266_GSCL_SUB_SEL 0x1
+#define MUX_ACLK_300_DISP1_SUB_SEL 0x1
+#define MUX_ACLK_200_DISP1_SUB_SEL 0x1
+#define CLK_SRC_TOP3_VAL ((MUX_ACLK_333_SUB_SEL << 24) \
+ | (MUX_ACLK_400_SUB_SEL << 20) \
+ | (MUX_ACLK_266_ISP_SUB_SEL << 16) \
+ | (MUX_ACLK_266_GPS_SUB_SEL << 12) \
+ | (MUX_ACLK_300_GSCL_SUB_SEL << 10) \
+ | (MUX_ACLK_266_GSCL_SUB_SEL << 8) \
+ | (MUX_ACLK_300_DISP1_SUB_SEL << 6) \
+ | (MUX_ACLK_200_DISP1_SUB_SEL << 4))
+
+/* CLK_DIV_TOP0 */
+#define ACLK_300_DISP1_RATIO 0x2
+#define ACLK_400_G3D_RATIO 0x0
+#define ACLK_333_RATIO 0x0
+#define ACLK_266_RATIO 0x2
+#define ACLK_200_RATIO 0x3
+#define ACLK_166_RATIO 0x1
+#define ACLK_133_RATIO 0x1
+#define ACLK_66_RATIO 0x5
+
+#define CLK_DIV_TOP0_VAL ((ACLK_300_DISP1_RATIO << 28) \
+ | (ACLK_400_G3D_RATIO << 24) \
+ | (ACLK_333_RATIO << 20) \
+ | (ACLK_266_RATIO << 16) \
+ | (ACLK_200_RATIO << 12) \
+ | (ACLK_166_RATIO << 8) \
+ | (ACLK_133_RATIO << 4) \
+ | (ACLK_66_RATIO))
+
+/* CLK_DIV_TOP1 */
+#define ACLK_MIPI_HSI_TX_BASE_RATIO 0x3
+#define ACLK_66_PRE_RATIO 0x1
+#define ACLK_400_ISP_RATIO 0x1
+#define ACLK_400_IOP_RATIO 0x1
+#define ACLK_300_GSCL_RATIO 0x2
+
+#define CLK_DIV_TOP1_VAL ((ACLK_MIPI_HSI_TX_BASE_RATIO << 28) \
+ | (ACLK_66_PRE_RATIO << 24) \
+ | (ACLK_400_ISP_RATIO << 20) \
+ | (ACLK_400_IOP_RATIO << 16) \
+ | (ACLK_300_GSCL_RATIO << 12))
+
+/* APLL_LOCK */
+#define APLL_LOCK_VAL (0x546)
+/* MPLL_LOCK */
+#define MPLL_LOCK_VAL (0x546)
+/* CPLL_LOCK */
+#define CPLL_LOCK_VAL (0x546)
+/* GPLL_LOCK */
+#define GPLL_LOCK_VAL (0x546)
+/* EPLL_LOCK */
+#define EPLL_LOCK_VAL (0x3A98)
+/* VPLL_LOCK */
+#define VPLL_LOCK_VAL (0x3A98)
+/* BPLL_LOCK */
+#define BPLL_LOCK_VAL (0x546)
+
+#define MUX_MCLK_CDREX_SEL (1 << 4)
+#define MUX_MCLK_DPHY_SEL (1 << 8)
+
+#define MUX_APLL_SEL_MASK (1 << 0)
+#define MUX_MPLL_FOUT_SEL (1 << 4)
+#define MUX_BPLL_FOUT_SEL (1 << 0)
+#define MUX_MPLL_SEL_MASK (1 << 8)
+#define MPLL_SEL_MOUT_MPLLFOUT (2 << 8)
+#define MUX_CPLL_SEL_MASK (1 << 8)
+#define MUX_EPLL_SEL_MASK (1 << 12)
+#define MUX_VPLL_SEL_MASK (1 << 16)
+#define MUX_GPLL_SEL_MASK (1 << 28)
+#define MUX_BPLL_SEL_MASK (1 << 0)
+#define MUX_HPM_SEL_MASK (1 << 20)
+#define HPM_SEL_SCLK_MPLL (1 << 21)
+#define APLL_CON0_LOCKED (1 << 29)
+#define MPLL_CON0_LOCKED (1 << 29)
+#define BPLL_CON0_LOCKED (1 << 29)
+#define CPLL_CON0_LOCKED (1 << 29)
+#define EPLL_CON0_LOCKED (1 << 29)
+#define GPLL_CON0_LOCKED (1 << 29)
+#define VPLL_CON0_LOCKED (1 << 29)
+#define CLK_REG_DISABLE 0x0
+#define TOP2_VAL 0x0110000
+
+/* CLK_SRC_PERIC0 */
+#define PWM_SEL 6
+#define UART3_SEL 6
+#define UART2_SEL 6
+#define UART1_SEL 6
+#define UART0_SEL 6
+/* SRC_CLOCK = SCLK_MPLL */
+#define CLK_SRC_PERIC0_VAL ((PWM_SEL << 24) \
+ | (UART3_SEL << 12) \
+ | (UART2_SEL << 8) \
+ | (UART1_SEL << 4) \
+ | (UART0_SEL))
+
+/* CLK_SRC_PERIC1 */
+/* SRC_CLOCK = SCLK_MPLL */
+#define SPI0_SEL 6
+#define SPI1_SEL 6
+#define SPI2_SEL 6
+#define CLK_SRC_PERIC1_VAL ((SPI2_SEL << 24) \
+ | (SPI1_SEL << 20) \
+ | (SPI0_SEL << 16))
+
+/* SCLK_SRC_ISP - set SPI0/1 to 6 = SCLK_MPLL_USER */
+#define SPI0_ISP_SEL 6
+#define SPI1_ISP_SEL 6
+#define SCLK_SRC_ISP_VAL (SPI1_ISP_SEL << 4) \
+ | (SPI0_ISP_SEL << 0)
+
+/* SCLK_DIV_ISP - set SPI0/1 to 0xf = divide by 16 */
+#define SPI0_ISP_RATIO 0xf
+#define SPI1_ISP_RATIO 0xf
+#define SCLK_DIV_ISP_VAL (SPI1_ISP_RATIO << 12) \
+ | (SPI0_ISP_RATIO << 0)
+
+/* CLK_DIV_PERIL0 */
+#define UART5_RATIO 7
+#define UART4_RATIO 7
+#define UART3_RATIO 7
+#define UART2_RATIO 7
+#define UART1_RATIO 7
+#define UART0_RATIO 7
+
+#define CLK_DIV_PERIC0_VAL ((UART3_RATIO << 12) \
+ | (UART2_RATIO << 8) \
+ | (UART1_RATIO << 4) \
+ | (UART0_RATIO))
+/* CLK_DIV_PERIC1 */
+#define SPI1_RATIO 0x7
+#define SPI0_RATIO 0xf
+#define SPI1_SUB_RATIO 0x0
+#define SPI0_SUB_RATIO 0x0
+#define CLK_DIV_PERIC1_VAL ((SPI1_SUB_RATIO << 24) \
+ | ((SPI1_RATIO << 16) \
+ | (SPI0_SUB_RATIO << 8) \
+ | (SPI0_RATIO << 0)))
+
+/* CLK_DIV_PERIC2 */
+#define SPI2_RATIO 0xf
+#define SPI2_SUB_RATIO 0x0
+#define CLK_DIV_PERIC2_VAL ((SPI2_SUB_RATIO << 8) \
+ | (SPI2_RATIO << 0))
+/* CLK_DIV_FSYS2 */
+#define MMC2_RATIO_MASK 0xf
+#define MMC2_RATIO_VAL 0x3
+#define MMC2_RATIO_OFFSET 0
+
+#define MMC2_PRE_RATIO_MASK 0xff
+#define MMC2_PRE_RATIO_VAL 0x9
+#define MMC2_PRE_RATIO_OFFSET 8
+
+#define MMC3_RATIO_MASK 0xf
+#define MMC3_RATIO_VAL 0x1
+#define MMC3_RATIO_OFFSET 16
+
+#define MMC3_PRE_RATIO_MASK 0xff
+#define MMC3_PRE_RATIO_VAL 0x0
+#define MMC3_PRE_RATIO_OFFSET 24
+
+/* CLK_SRC_LEX */
+#define CLK_SRC_LEX_VAL 0x0
+
+/* CLK_DIV_LEX */
+#define CLK_DIV_LEX_VAL 0x10
+
+/* CLK_DIV_R0X */
+#define CLK_DIV_R0X_VAL 0x10
+
+/* CLK_DIV_L0X */
+#define CLK_DIV_R1X_VAL 0x10
+
+/* CLK_DIV_ISP0 */
+#define CLK_DIV_ISP0_VAL 0x31
+
+/* CLK_DIV_ISP1 */
+#define CLK_DIV_ISP1_VAL 0x0
+
+/* CLK_DIV_ISP2 */
+#define CLK_DIV_ISP2_VAL 0x1
+
+/* CLK_SRC_DISP1_0 */
+#define CLK_SRC_DISP1_0_VAL 0x6
+
+/*
+ * DIV_DISP1_0
+ * For DP, divisor should be 2
+ */
+#define CLK_DIV_DISP1_0_FIMD1 (2 << 0)
+
+/* CLK_GATE_IP_DISP1 */
+#define CLK_GATE_DP1_ALLOW (1 << 4)
+
+/* CLK_GATE_IP_SYSRGT */
+#define CLK_C2C_MASK (1 << 1)
+
+/* CLK_GATE_IP_ACP */
+#define CLK_SMMUG2D_MASK (1 << 7)
+#define CLK_SMMUSSS_MASK (1 << 6)
+#define CLK_SMMUMDMA_MASK (1 << 5)
+#define CLK_ID_REMAPPER_MASK (1 << 4)
+#define CLK_G2D_MASK (1 << 3)
+#define CLK_SSS_MASK (1 << 2)
+#define CLK_MDMA_MASK (1 << 1)
+#define CLK_SECJTAG_MASK (1 << 0)
+
+/* CLK_GATE_BUS_SYSLFT */
+#define CLK_EFCLK_MASK (1 << 16)
+
+/* CLK_GATE_IP_ISP0 */
+#define CLK_UART_ISP_MASK (1 << 31)
+#define CLK_WDT_ISP_MASK (1 << 30)
+#define CLK_PWM_ISP_MASK (1 << 28)
+#define CLK_MTCADC_ISP_MASK (1 << 27)
+#define CLK_I2C1_ISP_MASK (1 << 26)
+#define CLK_I2C0_ISP_MASK (1 << 25)
+#define CLK_MPWM_ISP_MASK (1 << 24)
+#define CLK_MCUCTL_ISP_MASK (1 << 23)
+#define CLK_INT_COMB_ISP_MASK (1 << 22)
+#define CLK_SMMU_MCUISP_MASK (1 << 13)
+#define CLK_SMMU_SCALERP_MASK (1 << 12)
+#define CLK_SMMU_SCALERC_MASK (1 << 11)
+#define CLK_SMMU_FD_MASK (1 << 10)
+#define CLK_SMMU_DRC_MASK (1 << 9)
+#define CLK_SMMU_ISP_MASK (1 << 8)
+#define CLK_GICISP_MASK (1 << 7)
+#define CLK_ARM9S_MASK (1 << 6)
+#define CLK_MCUISP_MASK (1 << 5)
+#define CLK_SCALERP_MASK (1 << 4)
+#define CLK_SCALERC_MASK (1 << 3)
+#define CLK_FD_MASK (1 << 2)
+#define CLK_DRC_MASK (1 << 1)
+#define CLK_ISP_MASK (1 << 0)
+
+/* CLK_GATE_IP_ISP1 */
+#define CLK_SPI1_ISP_MASK (1 << 13)
+#define CLK_SPI0_ISP_MASK (1 << 12)
+#define CLK_SMMU3DNR_MASK (1 << 7)
+#define CLK_SMMUDIS1_MASK (1 << 6)
+#define CLK_SMMUDIS0_MASK (1 << 5)
+#define CLK_SMMUODC_MASK (1 << 4)
+#define CLK_3DNR_MASK (1 << 2)
+#define CLK_DIS_MASK (1 << 1)
+#define CLK_ODC_MASK (1 << 0)
+
+/* CLK_GATE_IP_GSCL */
+#define CLK_SMMUFIMC_LITE2_MASK (1 << 20)
+#define CLK_SMMUFIMC_LITE1_MASK (1 << 12)
+#define CLK_SMMUFIMC_LITE0_MASK (1 << 11)
+#define CLK_SMMUGSCL3_MASK (1 << 10)
+#define CLK_SMMUGSCL2_MASK (1 << 9)
+#define CLK_SMMUGSCL1_MASK (1 << 8)
+#define CLK_SMMUGSCL0_MASK (1 << 7)
+#define CLK_GSCL_WRAP_B_MASK (1 << 6)
+#define CLK_GSCL_WRAP_A_MASK (1 << 5)
+#define CLK_CAMIF_TOP_MASK (1 << 4)
+#define CLK_GSCL3_MASK (1 << 3)
+#define CLK_GSCL2_MASK (1 << 2)
+#define CLK_GSCL1_MASK (1 << 1)
+#define CLK_GSCL0_MASK (1 << 0)
+
+/* CLK_GATE_IP_MFC */
+#define CLK_SMMUMFCR_MASK (1 << 2)
+#define CLK_SMMUMFCL_MASK (1 << 1)
+#define CLK_MFC_MASK (1 << 0)
+
+#define SCLK_MPWM_ISP_MASK (1 << 0)
+
+/* CLK_GATE_IP_DISP1 */
+#define CLK_SMMUTVX_MASK (1 << 9)
+#define CLK_ASYNCTVX_MASK (1 << 7)
+#define CLK_HDMI_MASK (1 << 6)
+#define CLK_MIXER_MASK (1 << 5)
+#define CLK_DSIM1_MASK (1 << 3)
+
+/* CLK_GATE_IP_GEN */
+#define CLK_SMMUMDMA1_MASK (1 << 9)
+#define CLK_SMMUJPEG_MASK (1 << 7)
+#define CLK_SMMUROTATOR_MASK (1 << 6)
+#define CLK_MDMA1_MASK (1 << 4)
+#define CLK_JPEG_MASK (1 << 2)
+#define CLK_ROTATOR_MASK (1 << 1)
+
+/* CLK_GATE_IP_FSYS */
+#define CLK_WDT_IOP_MASK (1 << 30)
+#define CLK_SMMUMCU_IOP_MASK (1 << 26)
+#define CLK_SATA_PHY_I2C_MASK (1 << 25)
+#define CLK_SATA_PHY_CTRL_MASK (1 << 24)
+#define CLK_MCUCTL_MASK (1 << 23)
+#define CLK_NFCON_MASK (1 << 22)
+#define CLK_SMMURTIC_MASK (1 << 11)
+#define CLK_RTIC_MASK (1 << 9)
+#define CLK_MIPI_HSI_MASK (1 << 8)
+#define CLK_USBOTG_MASK (1 << 7)
+#define CLK_SATA_MASK (1 << 6)
+#define CLK_PDMA1_MASK (1 << 2)
+#define CLK_PDMA0_MASK (1 << 1)
+#define CLK_MCU_IOP_MASK (1 << 0)
+
+/* CLK_GATE_IP_PERIC */
+#define CLK_HS_I2C3_MASK (1 << 31)
+#define CLK_HS_I2C2_MASK (1 << 30)
+#define CLK_HS_I2C1_MASK (1 << 29)
+#define CLK_HS_I2C0_MASK (1 << 28)
+#define CLK_AC97_MASK (1 << 27)
+#define CLK_SPDIF_MASK (1 << 26)
+#define CLK_PCM2_MASK (1 << 23)
+#define CLK_PCM1_MASK (1 << 22)
+#define CLK_I2S2_MASK (1 << 21)
+#define CLK_I2S1_MASK (1 << 20)
+#define CLK_SPI2_MASK (1 << 18)
+#define CLK_SPI0_MASK (1 << 16)
+#define CLK_I2CHDMI_MASK (1 << 14)
+#define CLK_I2C7_MASK (1 << 13)
+#define CLK_I2C6_MASK (1 << 12)
+#define CLK_I2C5_MASK (1 << 11)
+#define CLK_I2C4_MASK (1 << 10)
+#define CLK_I2C3_MASK (1 << 9)
+#define CLK_I2C2_MASK (1 << 8)
+#define CLK_I2C1_MASK (1 << 7)
+#define CLK_I2C0_MASK (1 << 6)
+
+/* CLK_GATE_IP_PERIS */
+#define CLK_RTC_MASK (1 << 20)
+#define CLK_TZPC9_MASK (1 << 15)
+#define CLK_TZPC8_MASK (1 << 14)
+#define CLK_TZPC7_MASK (1 << 13)
+#define CLK_TZPC6_MASK (1 << 12)
+#define CLK_TZPC5_MASK (1 << 11)
+#define CLK_TZPC4_MASK (1 << 10)
+#define CLK_TZPC3_MASK (1 << 9)
+#define CLK_TZPC2_MASK (1 << 8)
+#define CLK_TZPC1_MASK (1 << 7)
+#define CLK_TZPC0_MASK (1 << 6)
+#define CLK_CHIPID_MASK (1 << 0)
+
+/* CLK_GATE_BLOCK */
+#define CLK_ACP_MASK (1 << 7)
+
+/* CLK_GATE_IP_CDREX */
+#define CLK_TZASC_DRBXW_MASK (1 << 23)
+#define CLK_TZASC_DRBXR_MASK (1 << 22)
+#define CLK_TZASC_XLBXW_MASK (1 << 21)
+#define CLK_TZASC_XLBXR_MASK (1 << 20)
+#define CLK_TZASC_XR1BXW_MASK (1 << 19)
+#define CLK_TZASC_XR1BXR_MASK (1 << 18)
+#define CLK_DPHY1_MASK (1 << 5)
+#define CLK_DPHY0_MASK (1 << 4)
+
+/*
+ * TZPC Register Value :
+ * R0SIZE: 0x0 : Size of secured ram
+ */
+#define R0SIZE 0x0
+
+/*
+ * TZPC Decode Protection Register Value :
+ * DECPROTXSET: 0xFF : Set Decode region to non-secure
+ */
+#define DECPROTXSET 0xFF
+
+#define LPDDR3PHY_CTRL_PHY_RESET (1 << 0)
+#define LPDDR3PHY_CTRL_PHY_RESET_OFF (0 << 0)
+
+#define PHY_CON0_RESET_VAL 0x17020a40
+#define P0_CMD_EN (1 << 14)
+#define BYTE_RDLVL_EN (1 << 13)
+#define CTRL_SHGATE (1 << 8)
+
+#define PHY_CON1_RESET_VAL 0x09210100
+#define CTRL_GATEDURADJ_MASK (0xf << 20)
+
+#define PHY_CON2_RESET_VAL 0x00010004
+#define INIT_DESKEW_EN (1 << 6)
+#define RDLVL_GATE_EN (1 << 24)
+
+/*ZQ Configurations */
+#define PHY_CON16_RESET_VAL 0x08000304
+
+#define ZQ_CLK_DIV_EN (1 << 18)
+#define ZQ_MANUAL_STR (1 << 1)
+#define ZQ_DONE (1 << 0)
+
+#define CTRL_RDLVL_GATE_ENABLE 1
+#define CTRL_RDLVL_GATE_DISABLE 1
+
+/* Direct Command */
+#define DIRECT_CMD_NOP 0x07000000
+#define DIRECT_CMD_PALL 0x01000000
+#define DIRECT_CMD_ZQINIT 0x0a000000
+#define DIRECT_CMD_CHANNEL_SHIFT 28
+#define DIRECT_CMD_CHIP_SHIFT 20
+
+/* DMC PHY Control0 register */
+#define PHY_CONTROL0_RESET_VAL 0x0
+#define MEM_TERM_EN (1 << 31) /* Termination enable for memory */
+#define PHY_TERM_EN (1 << 30) /* Termination enable for PHY */
+#define DMC_CTRL_SHGATE (1 << 29) /* Duration of DQS gating signal */
+#define FP_RSYNC (1 << 3) /* Force DLL resyncronization */
+
+/* Driver strength for CK, CKE, CS & CA */
+#define IMP_OUTPUT_DRV_40_OHM 0x5
+#define IMP_OUTPUT_DRV_30_OHM 0x7
+#define CA_CK_DRVR_DS_OFFSET 9
+#define CA_CKE_DRVR_DS_OFFSET 6
+#define CA_CS_DRVR_DS_OFFSET 3
+#define CA_ADR_DRVR_DS_OFFSET 0
+
+#define PHY_CON42_CTRL_BSTLEN_SHIFT 8
+#define PHY_CON42_CTRL_RDLAT_SHIFT 0
+
+struct mem_timings;
+
+/* Errors that we can encourter in low-level setup */
+enum {
+ SETUP_ERR_OK,
+ SETUP_ERR_RDLV_COMPLETE_TIMEOUT = -1,
+ SETUP_ERR_ZQ_CALIBRATION_FAILURE = -2,
+};
+
+/* Functions common between LPDDR2 and DDR3 */
+
+/* CPU info initialization code */
+void cpu_info_init(void);
+
+void mem_ctrl_init(void);
+/*
+ * Memory variant specific initialization code
+ *
+ * @param mem Memory timings for this memory type.
+ * @param mem_iv_size Memory interleaving size is a configurable parameter
+ * which the DMC uses to decide how to split a memory
+ * chunk into smaller chunks to support concurrent
+ * accesses; may vary across boards.
+ * @param mem_reset Reset memory during initialization.
+ * @return 0 if ok, SETUP_ERR_... if there is a problem
+ */
+int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size,
+ int mem_reset);
+
+/*
+ * Configure ZQ I/O interface
+ *
+ * @param mem Memory timings for this memory type.
+ * @param phy0_ctrl Pointer to struct containing PHY0 control reg
+ * @param phy1_ctrl Pointer to struct containing PHY1 control reg
+ * @return 0 if ok, -1 on error
+ */
+int dmc_config_zq(struct mem_timings *mem,
+ struct exynos5_phy_control *phy0_ctrl,
+ struct exynos5_phy_control *phy1_ctrl);
+
+/*
+ * Send NOP and MRS/EMRS Direct commands
+ *
+ * @param mem Memory timings for this memory type.
+ * @param dmc Pointer to struct of DMC registers
+ */
+void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc);
+
+/*
+ * Send PALL Direct commands
+ *
+ * @param mem Memory timings for this memory type.
+ * @param dmc Pointer to struct of DMC registers
+ */
+void dmc_config_prech(struct mem_timings *mem, struct exynos5_dmc *dmc);
+
+/*
+ * Configure the memconfig and membaseconfig registers
+ *
+ * @param mem Memory timings for this memory type.
+ * @param exynos5_dmc Pointer to struct of DMC registers
+ */
+void dmc_config_memory(struct mem_timings *mem, struct exynos5_dmc *dmc);
+
+/* Set the PS-Hold drive value */
+void ps_hold_setup(void);
+/*
+ * Reset the DLL. This function is common between DDR3 and LPDDR2.
+ * However, the reset value is different. So we are passing a flag
+ * ddr_mode to distinguish between LPDDR2 and DDR3.
+ *
+ * @param exynos5_dmc Pointer to struct of DMC registers
+ * @param ddr_mode Type of DDR memory
+ */
+void update_reset_dll(struct exynos5_dmc *, enum ddr_mode);
+#endif
diff --git a/src/cpu/samsung/exynos5420/spi.c b/src/cpu/samsung/exynos5420/spi.c
new file mode 100644
index 0000000000..503cee90ee
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/spi.c
@@ -0,0 +1,222 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Samsung Electronics
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <arch/io.h>
+#include <stdlib.h>
+#include <assert.h>
+#include "gpio.h"
+#include "clk.h"
+#include "spi.h"
+
+#define OM_STAT (0x1f << 1)
+#define EXYNOS_BASE_SPI1 ((void *)0x12d30000)
+
+#if defined(CONFIG_DEBUG_SPI) && CONFIG_DEBUG_SPI
+# define DEBUG_SPI(x,...) printk(BIOS_DEBUG, "EXYNOS_SPI: " x)
+#else
+# define DEBUG_SPI(x,...)
+#endif
+
+static void exynos_spi_rx_tx(struct exynos_spi *regs, int todo,
+ void *dinp, void const *doutp, int i)
+{
+ int rx_lvl, tx_lvl;
+ unsigned int *rxp = (unsigned int *)(dinp + (i * (32 * 1024)));
+ unsigned int out_bytes, in_bytes;
+
+ // TODO In currrent implementation, every read/write must be aligned to
+ // 4 bytes, otherwise you may get timeout or other unexpected results.
+ ASSERT(todo % 4 == 0);
+
+ out_bytes = in_bytes = todo;
+ setbits_le32(&regs->ch_cfg, SPI_CH_RST);
+ clrbits_le32(&regs->ch_cfg, SPI_CH_RST);
+ writel(((todo * 8) / 32) | SPI_PACKET_CNT_EN, &regs->pkt_cnt);
+
+ while (in_bytes) {
+ uint32_t spi_sts;
+ int temp;
+
+ spi_sts = readl(&regs->spi_sts);
+ rx_lvl = ((spi_sts >> 15) & 0x7f);
+ tx_lvl = ((spi_sts >> 6) & 0x7f);
+ while (tx_lvl < 32 && out_bytes) {
+ // TODO The "writing" (tx) is not supported now; that's
+ // why we write garbage to keep driving FIFO clock.
+ temp = 0xffffffff;
+ writel(temp, &regs->tx_data);
+ out_bytes -= 4;
+ tx_lvl += 4;
+ }
+ while (rx_lvl >= 4 && in_bytes) {
+ temp = readl(&regs->rx_data);
+ if (rxp)
+ *rxp++ = temp;
+ in_bytes -= 4;
+ rx_lvl -= 4;
+ }
+ }
+}
+
+/* set up SPI channel */
+int exynos_spi_open(struct exynos_spi *regs)
+{
+ /* set the spi1 GPIO */
+
+ /* set pktcnt and enable it */
+ writel(4 | SPI_PACKET_CNT_EN, &regs->pkt_cnt);
+ /* set FB_CLK_SEL */
+ writel(SPI_FB_DELAY_180, &regs->fb_clk);
+ /* set CH_WIDTH and BUS_WIDTH as word */
+ setbits_le32(&regs->mode_cfg,
+ SPI_MODE_CH_WIDTH_WORD | SPI_MODE_BUS_WIDTH_WORD);
+ clrbits_le32(&regs->ch_cfg, SPI_CH_CPOL_L); /* CPOL: active high */
+
+ /* clear rx and tx channel if set priveously */
+ clrbits_le32(&regs->ch_cfg, SPI_RX_CH_ON | SPI_TX_CH_ON);
+
+ setbits_le32(&regs->swap_cfg,
+ SPI_RX_SWAP_EN | SPI_RX_BYTE_SWAP | SPI_RX_HWORD_SWAP);
+
+ /* do a soft reset */
+ setbits_le32(&regs->ch_cfg, SPI_CH_RST);
+ clrbits_le32(&regs->ch_cfg, SPI_CH_RST);
+
+ /* now set rx and tx channel ON */
+ setbits_le32(&regs->ch_cfg, SPI_RX_CH_ON | SPI_TX_CH_ON | SPI_CH_HS_EN);
+ clrbits_le32(&regs->cs_reg, SPI_SLAVE_SIG_INACT); /* CS low */
+ return 0;
+}
+
+int exynos_spi_read(struct exynos_spi *regs, void *dest, u32 len, u32 off)
+{
+ int upto, todo;
+ int i;
+ /* Send read instruction (0x3h) followed by a 24 bit addr */
+ writel((SF_READ_DATA_CMD << 24) | off, &regs->tx_data);
+
+ /* waiting for TX done */
+ while (!(readl(&regs->spi_sts) & SPI_ST_TX_DONE));
+
+ for (upto = 0, i = 0; upto < len; upto += todo, i++) {
+ todo = MIN(len - upto, (1 << 15));
+ exynos_spi_rx_tx(regs, todo, dest, (void *)(off), i);
+ }
+
+ setbits_le32(&regs->cs_reg, SPI_SLAVE_SIG_INACT);/* make the CS high */
+
+ /*
+ * Let put controller mode to BYTE as
+ * SPI driver does not support WORD mode yet
+ */
+ clrbits_le32(&regs->mode_cfg,
+ SPI_MODE_CH_WIDTH_WORD | SPI_MODE_BUS_WIDTH_WORD);
+ writel(0, &regs->swap_cfg);
+
+ return len;
+}
+
+int exynos_spi_close(struct exynos_spi *regs)
+{
+ /*
+ * Flush spi tx, rx fifos and reset the SPI controller
+ * and clear rx/tx channel
+ */
+ clrsetbits_le32(&regs->ch_cfg, SPI_CH_HS_EN, SPI_CH_RST);
+ clrbits_le32(&regs->ch_cfg, SPI_CH_RST);
+ clrbits_le32(&regs->ch_cfg, SPI_TX_CH_ON | SPI_RX_CH_ON);
+ return 0;
+}
+
+// SPI as CBFS media.
+struct exynos_spi_media {
+ struct exynos_spi *regs;
+ struct cbfs_simple_buffer buffer;
+};
+
+static int exynos_spi_cbfs_open(struct cbfs_media *media) {
+ struct exynos_spi_media *spi = (struct exynos_spi_media*)media->context;
+ DEBUG_SPI("exynos_spi_cbfs_open\n");
+ return exynos_spi_open(spi->regs);
+}
+
+static int exynos_spi_cbfs_close(struct cbfs_media *media) {
+ struct exynos_spi_media *spi = (struct exynos_spi_media*)media->context;
+ DEBUG_SPI("exynos_spi_cbfs_close\n");
+ return exynos_spi_close(spi->regs);
+}
+
+static size_t exynos_spi_cbfs_read(struct cbfs_media *media, void *dest,
+ size_t offset, size_t count) {
+ struct exynos_spi_media *spi = (struct exynos_spi_media*)media->context;
+ int bytes;
+ DEBUG_SPI("exynos_spi_cbfs_read(%u)\n", count);
+ bytes = exynos_spi_read(spi->regs, dest, count, offset);
+ // Flush and re-open the device.
+ exynos_spi_close(spi->regs);
+ exynos_spi_open(spi->regs);
+ return bytes;
+}
+
+static void *exynos_spi_cbfs_map(struct cbfs_media *media, size_t offset,
+ size_t count) {
+ struct exynos_spi_media *spi = (struct exynos_spi_media*)media->context;
+ DEBUG_SPI("exynos_spi_cbfs_map\n");
+ // See exynos_spi_rx_tx for I/O alignment limitation.
+ if (count % 4)
+ count += 4 - (count % 4);
+ return cbfs_simple_buffer_map(&spi->buffer, media, offset, count);
+}
+
+static void *exynos_spi_cbfs_unmap(struct cbfs_media *media,
+ const void *address) {
+ struct exynos_spi_media *spi = (struct exynos_spi_media*)media->context;
+ DEBUG_SPI("exynos_spi_cbfs_unmap\n");
+ return cbfs_simple_buffer_unmap(&spi->buffer, address);
+}
+
+int initialize_exynos_spi_cbfs_media(struct cbfs_media *media,
+ void *buffer_address,
+ size_t buffer_size) {
+ // TODO Replace static variable to support multiple streams.
+ static struct exynos_spi_media context;
+ DEBUG_SPI("initialize_exynos_spi_cbfs_media\n");
+
+ context.regs = EXYNOS_BASE_SPI1;
+ context.buffer.allocated = context.buffer.last_allocate = 0;
+ context.buffer.buffer = buffer_address;
+ context.buffer.size = buffer_size;
+ media->context = (void*)&context;
+ media->open = exynos_spi_cbfs_open;
+ media->close = exynos_spi_cbfs_close;
+ media->read = exynos_spi_cbfs_read;
+ media->map = exynos_spi_cbfs_map;
+ media->unmap = exynos_spi_cbfs_unmap;
+
+ return 0;
+}
+
+int init_default_cbfs_media(struct cbfs_media *media) {
+ return initialize_exynos_spi_cbfs_media(
+ media,
+ (void*)CONFIG_CBFS_CACHE_ADDRESS,
+ CONFIG_CBFS_CACHE_SIZE);
+}
diff --git a/src/cpu/samsung/exynos5420/spi.h b/src/cpu/samsung/exynos5420/spi.h
new file mode 100644
index 0000000000..faf82b05d6
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/spi.h
@@ -0,0 +1,98 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_SPI_H
+#define CPU_SAMSUNG_EXYNOS5420_SPI_H
+
+/* This driver serves as a CBFS media source. */
+#include <cbfs.h>
+
+/* SPI peripheral register map; padded to 64KB */
+struct exynos_spi {
+ unsigned int ch_cfg; /* 0x00 */
+ unsigned char reserved0[4];
+ unsigned int mode_cfg; /* 0x08 */
+ unsigned int cs_reg; /* 0x0c */
+ unsigned char reserved1[4];
+ unsigned int spi_sts; /* 0x14 */
+ unsigned int tx_data; /* 0x18 */
+ unsigned int rx_data; /* 0x1c */
+ unsigned int pkt_cnt; /* 0x20 */
+ unsigned char reserved2[4];
+ unsigned int swap_cfg; /* 0x28 */
+ unsigned int fb_clk; /* 0x2c */
+ unsigned char padding[0xffd0];
+};
+
+#define EXYNOS_SPI_MAX_FREQ 50000000
+
+#define SPI_TIMEOUT_MS 10
+
+#define SF_READ_DATA_CMD 0x3
+
+/* SPI_CHCFG */
+#define SPI_CH_HS_EN (1 << 6)
+#define SPI_CH_RST (1 << 5)
+#define SPI_SLAVE_MODE (1 << 4)
+#define SPI_CH_CPOL_L (1 << 3)
+#define SPI_CH_CPHA_B (1 << 2)
+#define SPI_RX_CH_ON (1 << 1)
+#define SPI_TX_CH_ON (1 << 0)
+
+/* SPI_MODECFG */
+#define SPI_MODE_CH_WIDTH_WORD (0x2 << 29)
+#define SPI_MODE_BUS_WIDTH_WORD (0x2 << 17)
+
+/* SPI_CSREG */
+#define SPI_SLAVE_SIG_INACT (1 << 0)
+
+/* SPI_STS */
+#define SPI_ST_TX_DONE (1 << 25)
+#define SPI_FIFO_LVL_MASK 0x1ff
+#define SPI_TX_LVL_OFFSET 6
+#define SPI_RX_LVL_OFFSET 15
+
+/* Feedback Delay */
+#define SPI_CLK_BYPASS (0 << 0)
+#define SPI_FB_DELAY_90 (1 << 0)
+#define SPI_FB_DELAY_180 (2 << 0)
+#define SPI_FB_DELAY_270 (3 << 0)
+
+/* Packet Count */
+#define SPI_PACKET_CNT_EN (1 << 16)
+
+/* Swap config */
+#define SPI_TX_SWAP_EN (1 << 0)
+#define SPI_TX_BYTE_SWAP (1 << 2)
+#define SPI_TX_HWORD_SWAP (1 << 3)
+#define SPI_TX_BYTE_SWAP (1 << 2)
+#define SPI_RX_SWAP_EN (1 << 4)
+#define SPI_RX_BYTE_SWAP (1 << 6)
+#define SPI_RX_HWORD_SWAP (1 << 7)
+
+/* API */
+int exynos_spi_open(struct exynos_spi *regs);
+int exynos_spi_read(struct exynos_spi *regs, void *dest, u32 len, u32 off);
+int exynos_spi_close(struct exynos_spi *regs);
+
+/* Serve as CBFS media source */
+int initialize_exynos_spi_cbfs_media(struct cbfs_media *media,
+ void *buffer_address,
+ size_t buffer_size);
+#endif
diff --git a/src/cpu/samsung/exynos5420/sysreg.h b/src/cpu/samsung/exynos5420/sysreg.h
new file mode 100644
index 0000000000..3af95d286b
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/sysreg.h
@@ -0,0 +1,37 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Register map for Exynos5 sysreg */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_SYSREG_H
+#define CPU_SAMSUNG_EXYNOS5420_SYSREG_H
+
+/* sysreg map */
+struct exynos5_sysreg {
+ /* Add registers as and when required */
+ unsigned char res1[0x214];
+ unsigned int disp1blk_cfg;
+ unsigned char res2[0x18];
+ unsigned int usb20_phy_cfg;
+};
+
+#define FIMDBYPASS_DISP1 (1 << 15)
+#define USB20_PHY_CFG_EN (1 << 0)
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/timer.c b/src/cpu/samsung/exynos5420/timer.c
new file mode 100644
index 0000000000..405effac5b
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/timer.c
@@ -0,0 +1,110 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <arch/io.h>
+#include <timer.h>
+#include <delay.h>
+#include "timer.h"
+#include "pwm.h"
+#include "clk.h"
+#include "cpu.h"
+
+static unsigned long long timer_reset_value;
+static unsigned long lastinc;
+
+/* macro to read the 16 bit timer */
+static inline struct s5p_timer *s5p_get_base_timer(void)
+{
+ return samsung_get_base_timer();
+}
+
+/**
+ * Read the countdown timer.
+ *
+ * This operates at 1MHz and counts downwards. It will wrap about every
+ * hour (2^32 microseconds).
+ *
+ * @return current value of timer
+ */
+static unsigned long timer_get_us_down(void)
+{
+ struct s5p_timer *const timer = s5p_get_base_timer();
+
+ return readl(&timer->tcnto4);
+}
+
+void init_timer(void)
+{
+ /* Timer may have been enabled in SPL */
+ if (!pwm_check_enabled(4)) {
+ /* PWM Timer 4 */
+ pwm_init(4, MUX_DIV_4, 0);
+ pwm_config(4, 100000, 100000);
+ pwm_enable(4);
+
+ /* Use this as the current monotonic time in us */
+ timer_reset_value = 0;
+
+ /* Use this as the last timer value we saw */
+ lastinc = timer_get_us_down();
+ }
+}
+
+/*
+ * timer without interrupts
+ */
+unsigned long get_timer(unsigned long base)
+{
+ unsigned long now = timer_get_us_down();
+
+ /*
+ * Increment the time by the amount elapsed since the last read.
+ * The timer may have wrapped around, but it makes no difference to
+ * our arithmetic here.
+ */
+ timer_reset_value += lastinc - now;
+ lastinc = now;
+
+ /* Divide by 1000 to convert from us to ms */
+ return timer_reset_value / 1000 - base;
+}
+
+/* delay x useconds */
+void udelay(unsigned usec)
+{
+ struct mono_time current, end;
+
+ timer_monotonic_get(&current);
+ end = current;
+ mono_time_add_usecs(&end, usec);
+
+ if (mono_time_after(&current, &end)) {
+ printk(BIOS_EMERG, "udelay: 0x%08x is impossibly large\n",
+ usec);
+ /* There's not much we can do if usec is too big. Use a long,
+ * paranoid delay value and hope for the best... */
+ end = current;
+ mono_time_add_usecs(&end, USECS_PER_SEC);
+ }
+
+ while (mono_time_before(&current, &end))
+ timer_monotonic_get(&current);
+}
+
diff --git a/src/cpu/samsung/exynos5420/timer.h b/src/cpu/samsung/exynos5420/timer.h
new file mode 100644
index 0000000000..f02d58ac63
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/timer.h
@@ -0,0 +1,25 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_TIMER_H
+#define CPU_SAMSUNG_EXYNOS5420_TIMER_H
+
+unsigned long get_timer(unsigned long base);
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/tmu.c b/src/cpu/samsung/exynos5420/tmu.c
new file mode 100644
index 0000000000..1b04b6cb42
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/tmu.c
@@ -0,0 +1,215 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* EXYNOS - Thermal Management Unit */
+
+#include <console/console.h>
+#include <arch/io.h>
+#include "power.h"
+#include "tmu.h"
+
+#define TRIMINFO_RELOAD 1
+#define CORE_EN 1
+#define THERM_TRIP_EN (1 << 12)
+
+#define INTEN_RISE0 1
+#define INTEN_RISE1 (1 << 4)
+#define INTEN_RISE2 (1 << 8)
+#define INTEN_FALL0 (1 << 16)
+#define INTEN_FALL1 (1 << 20)
+#define INTEN_FALL2 (1 << 24)
+
+#define TRIM_INFO_MASK 0xff
+
+#define INTCLEAR_RISE0 1
+#define INTCLEAR_RISE1 (1 << 4)
+#define INTCLEAR_RISE2 (1 << 8)
+#define INTCLEAR_FALL0 (1 << 16)
+#define INTCLEAR_FALL1 (1 << 20)
+#define INTCLEAR_FALL2 (1 << 24)
+#define INTCLEARALL (INTCLEAR_RISE0 | INTCLEAR_RISE1 | \
+ INTCLEAR_RISE2 | INTCLEAR_FALL0 | \
+ INTCLEAR_FALL1 | INTCLEAR_FALL2)
+
+struct tmu_info exynos5420_tmu_info = {
+ .tmu_base = 0x10060000,
+ .tmu_mux = 6,
+ .data = {
+ .ts = {
+ .min_val = 25,
+ .max_val = 125,
+ .start_warning = 95,
+ .start_tripping = 105,
+ .hardware_tripping = 110,
+ },
+ .efuse_min_value = 40,
+ .efuse_value = 55,
+ .efuse_max_value = 100,
+ .slope = 0x10008802,
+ },
+ .dc_value = 25,
+};
+
+/*
+ * After reading temperature code from register, compensating
+ * its value and calculating celsius temperatue,
+ * get current temperatue.
+ *
+ * @return current temperature of the chip as sensed by TMU
+ */
+static int get_cur_temp(struct tmu_info *info)
+{
+ int cur_temp;
+ struct tmu_reg *reg = (struct tmu_reg *)info->tmu_base;
+
+ /* Temperature code range between min 25 and max 125 */
+ cur_temp = readl(&reg->current_temp) & 0xff;
+
+ /* Calibrate current temperature */
+ if (cur_temp)
+ cur_temp = cur_temp - info->te1 + info->dc_value;
+
+ return cur_temp;
+}
+
+/*
+ * Monitors status of the TMU device and exynos temperature
+ *
+ * @info TMU info
+ * @temp pointer to the current temperature value
+ * @return enum tmu_status_t value, code indicating event to execute
+ */
+enum tmu_status_t tmu_monitor(struct tmu_info *info, int *temp)
+{
+ if (info->tmu_state == TMU_STATUS_INIT)
+ return -1;
+
+ int cur_temp;
+ struct tmu_data *data = &info->data;
+
+ /* Read current temperature of the SOC */
+ cur_temp = get_cur_temp(info);
+ *temp = cur_temp;
+
+ /* Temperature code lies between min 25 and max 125 */
+ if (cur_temp >= data->ts.start_tripping &&
+ cur_temp <= data->ts.max_val)
+ return TMU_STATUS_TRIPPED;
+ else if (cur_temp >= data->ts.start_warning)
+ return TMU_STATUS_WARNING;
+ else if (cur_temp < data->ts.start_warning &&
+ cur_temp >= data->ts.min_val)
+ return TMU_STATUS_NORMAL;
+ /* Temperature code does not lie between min 25 and max 125 */
+ else {
+ info->tmu_state = TMU_STATUS_INIT;
+ printk(BIOS_DEBUG, "EXYNOS_TMU: Thermal reading failed\n");
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Calibrate and calculate threshold values and
+ * enable interrupt levels
+ *
+ * @param info pointer to the tmu_info struct
+ */
+static void tmu_setup_parameters(struct tmu_info *info)
+{
+ unsigned int te_temp, con;
+ unsigned int warning_code, trip_code, hwtrip_code;
+ unsigned int cooling_temp;
+ unsigned int rising_value;
+ struct tmu_data *data = &info->data;
+ struct tmu_reg *reg = (struct tmu_reg *)info->tmu_base;
+
+ /* Must reload for using efuse value at EXYNOS */
+ writel(TRIMINFO_RELOAD, &reg->triminfo_control);
+
+ /* Get the compensation parameter */
+ te_temp = readl(&reg->triminfo);
+ info->te1 = te_temp & TRIM_INFO_MASK;
+ info->te2 = ((te_temp >> 8) & TRIM_INFO_MASK);
+
+ if ((data->efuse_min_value > info->te1) ||
+ (info->te1 > data->efuse_max_value)
+ || (info->te2 != 0))
+ info->te1 = data->efuse_value;
+
+ /* Get RISING & FALLING Threshold value */
+ warning_code = data->ts.start_warning
+ + info->te1 - info->dc_value;
+ trip_code = data->ts.start_tripping
+ + info->te1 - info->dc_value;
+ hwtrip_code = data->ts.hardware_tripping
+ + info->te1 - info->dc_value;
+
+ cooling_temp = 0;
+
+ rising_value = ((warning_code << 8) |
+ (trip_code << 16) |
+ (hwtrip_code << 24));
+
+ /* Set interrupt level */
+ writel(rising_value, &reg->threshold_temp_rise);
+ writel(cooling_temp, &reg->threshold_temp_fall);
+
+ /*
+ * Need to init all register settings after getting parameter info
+ * [28:23] vref [11:8] slope - Tuning parameter
+ *
+ * WARNING: this slope value writes into many bits in the tmu_control
+ * register, with the default FDT value of 268470274 (0x10008802)
+ * we are using this essentially sets the default register setting
+ * from the TRM for tmu_control.
+ * TODO(bhthompson): rewrite this code such that we are not performing
+ * a hard wipe of tmu_control and re verify functionality.
+ */
+ writel(data->slope, &reg->tmu_control);
+
+ writel(INTCLEARALL, &reg->intclear);
+ /* TMU core enable */
+ con = readl(&reg->tmu_control);
+ con |= (info->tmu_mux << 20) | THERM_TRIP_EN | CORE_EN;
+
+ writel(con, &reg->tmu_control);
+
+ /* Enable HW thermal trip */
+ power_enable_hw_thermal_trip();
+
+ /* LEV1 LEV2 interrupt enable */
+ writel(INTEN_RISE1 | INTEN_RISE2, &reg->inten);
+}
+
+/*
+ * Initialize TMU device
+ *
+ * @return int value, 0 for success
+ */
+int tmu_init(struct tmu_info *info)
+{
+ info->tmu_state = TMU_STATUS_INIT;
+
+ tmu_setup_parameters(info);
+ info->tmu_state = TMU_STATUS_NORMAL;
+
+ return 0;
+}
diff --git a/src/cpu/samsung/exynos5420/tmu.h b/src/cpu/samsung/exynos5420/tmu.h
new file mode 100644
index 0000000000..cf81b9ad33
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/tmu.h
@@ -0,0 +1,134 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* EXYNOS - Thermal Management Unit */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_TMU_H
+#define CPU_SAMSUNG_EXYNOS5420_TMU_H
+
+struct tmu_reg {
+ unsigned triminfo;
+ unsigned rsvd1;
+ unsigned rsvd2;
+ unsigned rsvd3;
+ unsigned rsvd4;
+ unsigned triminfo_control;
+ unsigned rsvd5;
+ unsigned rsvd6;
+ unsigned tmu_control;
+ unsigned rsvd7;
+ unsigned tmu_status;
+ unsigned sampling_internal;
+ unsigned counter_value0;
+ unsigned counter_value1;
+ unsigned rsvd8;
+ unsigned rsvd9;
+ unsigned current_temp;
+ unsigned rsvd10;
+ unsigned rsvd11;
+ unsigned rsvd12;
+ unsigned threshold_temp_rise;
+ unsigned threshold_temp_fall;
+ unsigned rsvd13;
+ unsigned rsvd14;
+ unsigned past_temp3_0;
+ unsigned past_temp7_4;
+ unsigned past_temp11_8;
+ unsigned past_temp15_12;
+ unsigned inten;
+ unsigned intstat;
+ unsigned intclear;
+ unsigned rsvd15;
+ unsigned emul_con;
+};
+
+enum tmu_status_t {
+ TMU_STATUS_INIT = 0,
+ TMU_STATUS_NORMAL,
+ TMU_STATUS_WARNING,
+ TMU_STATUS_TRIPPED,
+};
+
+/* Tmeperature threshold values for various thermal events */
+struct temperature_params {
+ /* minimum value in temperature code range */
+ unsigned int min_val;
+ /* maximum value in temperature code range */
+ unsigned int max_val;
+ /* temperature threshold to start warning */
+ unsigned int start_warning;
+ /* temperature threshold CPU tripping */
+ unsigned int start_tripping;
+ /* temperature threshold for HW tripping */
+ unsigned int hardware_tripping;
+};
+
+/* Pre-defined values and thresholds for calibration of current temperature */
+struct tmu_data {
+ /* pre-defined temperature thresholds */
+ struct temperature_params ts;
+ /* pre-defined efuse range minimum value */
+ unsigned int efuse_min_value;
+ /* pre-defined efuse value for temperature calibration */
+ unsigned int efuse_value;
+ /* pre-defined efuse range maximum value */
+ unsigned int efuse_max_value;
+ /* current temperature sensing slope */
+ unsigned int slope;
+};
+
+/* TMU device specific details and status */
+struct tmu_info {
+ /* base Address for the TMU */
+ unsigned tmu_base;
+ /* mux Address for the TMU */
+ int tmu_mux;
+ /* pre-defined values for calibration and thresholds */
+ struct tmu_data data;
+ /* value required for triminfo_25 calibration */
+ unsigned int te1;
+ /* value required for triminfo_85 calibration */
+ unsigned int te2;
+ /* TMU DC value for threshold calculation */
+ int dc_value;
+ /* enum value indicating status of the TMU */
+ int tmu_state;
+};
+
+extern struct tmu_info *tmu_info;
+
+/*
+ * Monitors status of the TMU device and exynos temperature
+ *
+ * @info pointer to TMU info struct
+ * @temp pointer to the current temperature value
+ * @return enum tmu_status_t value, code indicating event to execute
+ * and -1 on error
+ */
+enum tmu_status_t tmu_monitor(struct tmu_info *info, int *temp);
+
+/*
+ * Initialize TMU device
+ *
+ * @info pointer to TMU info struct
+ * @return int value, 0 for success
+ */
+int tmu_init(struct tmu_info *info);
+
+#endif /* CPU_SAMSUNG_EXYNOS5420_TMU_H */
diff --git a/src/cpu/samsung/exynos5420/uart.c b/src/cpu/samsung/exynos5420/uart.c
new file mode 100644
index 0000000000..2dea033743
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/uart.c
@@ -0,0 +1,200 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h> /* for __console definition */
+#include <uart.h>
+#include <arch/io.h>
+#include "uart.h"
+#include "clk.h"
+#include "cpu.h"
+
+#define RX_FIFO_COUNT_MASK 0xff
+#define RX_FIFO_FULL_MASK (1 << 8)
+#define TX_FIFO_FULL_MASK (1 << 24)
+
+/* FIXME(dhendrix): exynos5 has 4 UARTs and its functions in u-boot take a
+ base_port argument. However console_driver functions do not. */
+static uint32_t base_port = CONFIG_CONSOLE_SERIAL_UART_ADDRESS;
+
+/*
+ * The coefficient, used to calculate the baudrate on S5P UARTs is
+ * calculated as
+ * C = UBRDIV * 16 + number_of_set_bits_in_UDIVSLOT
+ * however, section 31.6.11 of the datasheet doesn't recomment using 1 for 1,
+ * 3 for 2, ... (2^n - 1) for n, instead, they suggest using these constants:
+ */
+static const int udivslot[] = {
+ 0,
+ 0x0080,
+ 0x0808,
+ 0x0888,
+ 0x2222,
+ 0x4924,
+ 0x4a52,
+ 0x54aa,
+ 0x5555,
+ 0xd555,
+ 0xd5d5,
+ 0xddd5,
+ 0xdddd,
+ 0xdfdd,
+ 0xdfdf,
+ 0xffdf,
+};
+
+static void serial_setbrg_dev(void)
+{
+ struct s5p_uart *uart = (struct s5p_uart *)base_port;
+ u32 uclk;
+ u32 baudrate = CONFIG_TTYS0_BAUD;
+ u32 val;
+
+ // All UARTs share the same clock.
+ uclk = clock_get_periph_rate(PERIPH_ID_UART3);
+ val = uclk / baudrate;
+
+ writel(val / 16 - 1, &uart->ubrdiv);
+
+ /*
+ * FIXME(dhendrix): the original uart.h had a "br_rest" value which
+ * does not seem relevant to the exynos5420... not entirely sure
+ * where/if we need to worry about it here
+ */
+#if 0
+ if (s5p_uart_divslot())
+ writel(udivslot[val % 16], &uart->rest.slot);
+ else
+ writeb(val % 16, &uart->rest.value);
+#endif
+}
+
+/*
+ * Initialise the serial port with the given baudrate. The settings
+ * are always 8 data bits, no parity, 1 stop bit, no start bits.
+ */
+static void exynos5_init_dev(void)
+{
+ struct s5p_uart *uart = (struct s5p_uart *)base_port;
+
+ // TODO initialize with correct peripheral id by base_port.
+ exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
+
+ /* enable FIFOs */
+ writel(0x1, &uart->ufcon);
+ writel(0, &uart->umcon);
+ /* 8N1 */
+ writel(0x3, &uart->ulcon);
+ /* No interrupts, no DMA, pure polling */
+ writel(0x245, &uart->ucon);
+
+ serial_setbrg_dev();
+}
+
+static int exynos5_uart_err_check(int op)
+{
+ struct s5p_uart *uart = (struct s5p_uart *)base_port;
+ unsigned int mask;
+
+ /*
+ * UERSTAT
+ * Break Detect [3]
+ * Frame Err [2] : receive operation
+ * Parity Err [1] : receive operation
+ * Overrun Err [0] : receive operation
+ */
+ if (op)
+ mask = 0x8;
+ else
+ mask = 0xf;
+
+ return readl(&uart->uerstat) & mask;
+}
+
+/*
+ * Read a single byte from the serial port. Returns 1 on success, 0
+ * otherwise. When the function is succesfull, the character read is
+ * written into its argument c.
+ */
+static unsigned char exynos5_uart_rx_byte(void)
+{
+ struct s5p_uart *uart = (struct s5p_uart *)base_port;
+
+ /* wait for character to arrive */
+ while (!(readl(&uart->ufstat) & (RX_FIFO_COUNT_MASK |
+ RX_FIFO_FULL_MASK))) {
+ if (exynos5_uart_err_check(0))
+ return 0;
+ }
+
+ return readb(&uart->urxh) & 0xff;
+}
+
+/*
+ * Output a single byte to the serial port.
+ */
+static void exynos5_uart_tx_byte(unsigned char data)
+{
+ struct s5p_uart *uart = (struct s5p_uart *)base_port;
+
+ /* wait for room in the tx FIFO */
+ while ((readl(&uart->ufstat) & TX_FIFO_FULL_MASK)) {
+ if (exynos5_uart_err_check(1))
+ return;
+ }
+
+ writeb(data, &uart->utxh);
+}
+
+#if !defined(__PRE_RAM__)
+
+static const struct console_driver exynos5_uart_console __console = {
+ .init = exynos5_init_dev,
+ .tx_byte = exynos5_uart_tx_byte,
+// .tx_flush = exynos5_uart_tx_flush,
+ .rx_byte = exynos5_uart_rx_byte,
+// .tst_byte = exynos5_uart_tst_byte,
+};
+
+uint32_t uartmem_getbaseaddr(void)
+{
+ return base_port;
+}
+
+#else
+
+void uart_init(void)
+{
+ exynos5_init_dev();
+}
+
+unsigned char uart_rx_byte(void)
+{
+ return exynos5_uart_rx_byte();
+}
+
+void uart_tx_byte(unsigned char data)
+{
+ exynos5_uart_tx_byte(data);
+}
+
+void uart_tx_flush(void)
+{
+}
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/uart.h b/src/cpu/samsung/exynos5420/uart.h
new file mode 100644
index 0000000000..dcf9ed7aea
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/uart.h
@@ -0,0 +1,54 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2012 Google Inc.
+ * Copyright (C) 2009 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_UART_H
+#define CPU_SAMSUNG_EXYNOS5420_UART_H
+
+#define EXYNOS5_UART0_BASE 0x12c00000
+#define EXYNOS5_UART1_BASE 0x12c10000
+#define EXYNOS5_UART2_BASE 0x12c20000
+#define EXYNOS5_UART3_BASE 0x12c30000
+#define EXYNOS5_ISP_UART_BASE 0x13190000
+
+/* baudrate rest value */
+union br_rest {
+ unsigned short slot; /* udivslot */
+ unsigned char value; /* ufracval */
+};
+
+struct s5p_uart {
+ unsigned int ulcon;
+ unsigned int ucon;
+ unsigned int ufcon;
+ unsigned int umcon;
+ unsigned int utrstat;
+ unsigned int uerstat;
+ unsigned int ufstat;
+ unsigned int umstat;
+ unsigned char utxh;
+ unsigned char res1[3];
+ unsigned char urxh;
+ unsigned char res2[3];
+ unsigned int ubrdiv;
+ union br_rest rest;
+ unsigned char res3[0xffd0];
+};
+
+#endif
diff --git a/src/cpu/samsung/exynos5420/wakeup.c b/src/cpu/samsung/exynos5420/wakeup.c
new file mode 100644
index 0000000000..5764c83bd6
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/wakeup.c
@@ -0,0 +1,50 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include "power.h"
+#include "wakeup.h"
+
+void wakeup(void)
+{
+ if (wakeup_need_reset())
+ power_reset();
+
+ power_init(); /* Ensure ps_hold_setup() for early wakeup. */
+ power_exit_wakeup();
+ /* Should never return. */
+ die("Failed to wake up.\n");
+}
+
+int get_wakeup_state(void)
+{
+ uint32_t status = power_read_reset_status();
+
+ /* DIDLE/LPA can be resumed without clock reset (ex, bootblock),
+ * and SLEEP requires resetting clock (should be done in ROM stage).
+ */
+
+ if (status == S5P_CHECK_DIDLE || status == S5P_CHECK_LPA)
+ return WAKEUP_DIRECT;
+
+ if (status == S5P_CHECK_SLEEP)
+ return WAKEUP_NEED_CLOCK_RESET;
+
+ return IS_NOT_WAKEUP;
+}
diff --git a/src/cpu/samsung/exynos5420/wakeup.h b/src/cpu/samsung/exynos5420/wakeup.h
new file mode 100644
index 0000000000..2658875e1a
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/wakeup.h
@@ -0,0 +1,42 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef CPU_SAMSUNG_EXYNOS5420_WAKEUP_H
+#define CPU_SAMSUNG_EXYNOS5420_WAKEUP_H
+
+/* Power Down Modes */
+#define S5P_CHECK_SLEEP 0x00000BAD
+#define S5P_CHECK_DIDLE 0xBAD00000
+#define S5P_CHECK_LPA 0xABAD0000
+
+enum {
+ // A normal boot (not suspend/resume)
+ IS_NOT_WAKEUP,
+ // A wake up event that can be resumed any time
+ WAKEUP_DIRECT,
+ // A wake up event that must be resumed only after
+ // clock and memory controllers are re-initialized
+ WAKEUP_NEED_CLOCK_RESET,
+};
+
+int wakeup_need_reset(void);
+int get_wakeup_state(void);
+void wakeup(void);
+
+#endif /* CPU_SAMSUNG_EXYNOS5420_WAKEUP_H */
diff --git a/src/mainboard/google/snow/Kconfig b/src/mainboard/google/snow/Kconfig
index 3ebaa5894d..91bd66d990 100644
--- a/src/mainboard/google/snow/Kconfig
+++ b/src/mainboard/google/snow/Kconfig
@@ -22,7 +22,7 @@ if BOARD_GOOGLE_SNOW
config BOARD_SPECIFIC_OPTIONS # dummy
def_bool y
select ARCH_ARMV7
- select CPU_SAMSUNG_EXYNOS5
+ select CPU_SAMSUNG_EXYNOS5250
select HAVE_UART_MEMORY_MAPPED
select EC_GOOGLE_CHROMEEC
select EC_GOOGLE_CHROMEEC_I2C