tegra132: Add support for tegra132 soc

Add basic support for tegra132 soc.

BUG=None
BRANCH=None
TEST=Compiles successfully for rush board using tegra132 soc

Original-Change-Id: If2a3de80026e7729ac6da8484ff6c56607c52a63
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/197398
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
(cherry picked from commit 4746bff6e9f4b20abc44d0b6fce9691aea63583c)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: If2a3de80026e7729ac6da8484ff6c56607c52a63
Reviewed-on: http://review.coreboot.org/8040
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

9 files changed, 711 insertions, 0 deletions

diff --git a/src/soc/nvidia/tegra132/Kconfig b/src/soc/nvidia/tegra132/Kconfig
new file mode 100644
index 0000000000..df58f06a03
--- /dev/null
+++ b/src/soc/nvidia/tegra132/Kconfig
@@ -0,0 +1,24 @@
+config SOC_NVIDIA_TEGRA132
+	bool
+	default n
+	select ARCH_BOOTBLOCK_ARMV4
+	select ARCH_ROMSTAGE_ARMV8_64
+	select ARCH_RAMSTAGE_ARMV8_64
+	select ARM_LPAE
+	select DYNAMIC_CBMEM
+
+if SOC_NVIDIA_TEGRA132
+
+config BOOTBLOCK_ROM_OFFSET
+	hex
+	default 0x0
+
+config CBFS_HEADER_ROM_OFFSET
+	hex "offset of master CBFS header in ROM"
+	default 0x18000
+
+config CBFS_ROM_OFFSET
+	hex "offset of CBFS data in ROM"
+	default 0x18080
+
+endif
diff --git a/src/soc/nvidia/tegra132/Makefile.inc b/src/soc/nvidia/tegra132/Makefile.inc
new file mode 100644
index 0000000000..e31bbb695b
--- /dev/null
+++ b/src/soc/nvidia/tegra132/Makefile.inc
@@ -0,0 +1,12 @@
+bootblock-y += cbfs.c
+bootblock-y += timer.c
+
+romstage-y += cbfs.c
+romstage-y += cbmem.c
+romstage-y += timer.c
+
+ramstage-y += cbfs.c
+ramstage-y += cbmem.c
+ramstage-y += timer.c
+
+CPPFLAGS_common += -Isrc/soc/nvidia/tegra132/include/
diff --git a/src/soc/nvidia/tegra132/cbfs.c b/src/soc/nvidia/tegra132/cbfs.c
new file mode 100644
index 0000000000..ac4a5570e6
--- /dev/null
+++ b/src/soc/nvidia/tegra132/cbfs.c
@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 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 <cbfs.h>  /* This driver serves as a CBFS media source. */
+
+int init_default_cbfs_media(struct cbfs_media *media)
+{
+        return 0;
+}
diff --git a/src/soc/nvidia/tegra132/cbmem.c b/src/soc/nvidia/tegra132/cbmem.c
new file mode 100644
index 0000000000..495fcbae44
--- /dev/null
+++ b/src/soc/nvidia/tegra132/cbmem.c
@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 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 <cbmem.h>
+
+void *cbmem_top(void)
+{
+/* TODO: update with real cbmem_top function. */
+	return NULL;
+}
diff --git a/src/soc/nvidia/tegra132/chip.h b/src/soc/nvidia/tegra132/chip.h
new file mode 100644
index 0000000000..394f0a4020
--- /dev/null
+++ b/src/soc/nvidia/tegra132/chip.h
@@ -0,0 +1,31 @@
+/*
+ * 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 __SOC_NVIDIA_TEGRA132_CHIP_H__
+#define __SOC_NVIDIA_TEGRA132_CHIP_H__
+#include <arch/cache.h>
+#include <soc/addressmap.h>
+
+#define EFAULT  1
+#define EINVAL  2
+
+struct soc_nvidia_tegra132_config {
+};
+
+#endif /* __SOC_NVIDIA_TEGRA132_CHIP_H__ */
diff --git a/src/soc/nvidia/tegra132/include/soc/addressmap.h b/src/soc/nvidia/tegra132/include/soc/addressmap.h
new file mode 100644
index 0000000000..d9d970a809
--- /dev/null
+++ b/src/soc/nvidia/tegra132/include/soc/addressmap.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright 2014 Google Inc.
+ *
+ * (C) Copyright 2010,2011
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __SOC_NVIDIA_TEGRA132_INCLUDE_SOC_ADDRESS_MAP_H__
+#define __SOC_NVIDIA_TEGRA132_INCLUDE_SOC_ADDRESS_MAP_H__
+
+#include <stddef.h>
+
+enum {
+	TEGRA_SRAM_BASE = 0x40000000,
+	TEGRA_SRAM_SIZE = 0x40000
+};
+
+enum {
+	TEGRA_ARM_PERIPHBASE =		0x50040000,
+	TEGRA_ARM_DISPLAYA =            0x54200000,
+	TEGRA_ARM_DISPLAYB =            0x54240000,
+	TEGRA_ARM_SOR =                 0x54540000,
+	TEGRA_ARM_DPAUX =               0x545c0000,
+	TEGRA_PG_UP_BASE =		0x60000000,
+	TEGRA_TMRUS_BASE =		0x60005010,
+	TEGRA_CLK_RST_BASE =		0x60006000,
+	TEGRA_FLOW_BASE =		0x60007000,
+	TEGRA_GPIO_BASE =		0x6000D000,
+	TEGRA_EVP_BASE =		0x6000F000,
+	TEGRA_APB_DMA_BASE =		0x60020000,
+	TEGRA_APB_MISC_BASE =		0x70000000,
+	TEGRA_APB_MISC_GP_BASE =	TEGRA_APB_MISC_BASE + 0x0800,
+	TEGRA_APB_PINGROUP_BASE =	TEGRA_APB_MISC_BASE + 0x0868,
+	TEGRA_APB_PINMUX_BASE =		TEGRA_APB_MISC_BASE + 0x3000,
+	TEGRA_APB_UARTA_BASE =		TEGRA_APB_MISC_BASE + 0x6000,
+	TEGRA_APB_UARTB_BASE =		TEGRA_APB_MISC_BASE + 0x6040,
+	TEGRA_APB_UARTC_BASE =		TEGRA_APB_MISC_BASE + 0x6200,
+	TEGRA_APB_UARTD_BASE =		TEGRA_APB_MISC_BASE + 0x6300,
+	TEGRA_APB_UARTE_BASE =		TEGRA_APB_MISC_BASE + 0x6400,
+	TEGRA_NAND_BASE =		TEGRA_APB_MISC_BASE + 0x8000,
+	TEGRA_PWM_BASE =		TEGRA_APB_MISC_BASE + 0xA000,
+	TEGRA_I2C_BASE =		TEGRA_APB_MISC_BASE + 0xC000,
+	TEGRA_SPI_BASE =		TEGRA_APB_MISC_BASE + 0xC380,
+	TEGRA_I2C2_BASE =		TEGRA_APB_MISC_BASE + 0xC400,
+	TEGRA_I2C3_BASE =		TEGRA_APB_MISC_BASE + 0xC500,
+	TEGRA_I2C4_BASE =		TEGRA_APB_MISC_BASE + 0xC700,
+	TEGRA_I2C5_BASE =		TEGRA_APB_MISC_BASE + 0xD000,
+	TEGRA_I2C6_BASE =		TEGRA_APB_MISC_BASE + 0xD100,
+	TEGRA_SPI1_BASE =		TEGRA_APB_MISC_BASE + 0xD400,
+	TEGRA_SPI2_BASE =		TEGRA_APB_MISC_BASE + 0xD600,
+	TEGRA_SPI3_BASE =		TEGRA_APB_MISC_BASE + 0xD800,
+	TEGRA_SPI4_BASE =		TEGRA_APB_MISC_BASE + 0xDA00,
+	TEGRA_SPI5_BASE =		TEGRA_APB_MISC_BASE + 0xDC00,
+	TEGRA_SPI6_BASE =		TEGRA_APB_MISC_BASE + 0xDE00,
+	TEGRA_PMC_BASE =		TEGRA_APB_MISC_BASE + 0xE400,
+	TEGRA_FUSE_BASE =		TEGRA_APB_MISC_BASE + 0xF800,
+	TEGRA_MC_BASE =			0x70019000,
+	TEGRA_EMC_BASE =		0x7001B000,
+	TEGRA_CSITE_BASE =		0x70040000,
+	TEGRA_SYSCTR0_BASE =		0x700F0000,
+	TEGRA_USBD_BASE =		0x7D000000,
+	TEGRA_USB2_BASE =		0x7D004000,
+	TEGRA_USB3_BASE =		0x7D008000,
+};
+
+enum {
+	TEGRA_I2C_BASE_COUNT = 6,
+};
+
+#endif /* __SOC_NVIDIA_TEGRA132_INCLUDE_SOC_ADDRESS_MAP_H__ */
diff --git a/src/soc/nvidia/tegra132/include/soc/clock.h b/src/soc/nvidia/tegra132/include/soc/clock.h
new file mode 100644
index 0000000000..5fc10c3ca4
--- /dev/null
+++ b/src/soc/nvidia/tegra132/include/soc/clock.h
@@ -0,0 +1,276 @@
+/*
+ * Copyright 2014 Google Inc.
+ * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __SOC_NVIDIA_TEGRA132_CLOCK_H__
+#define __SOC_NVIDIA_TEGRA132_CLOCK_H__
+
+#include <stdint.h>
+
+enum {
+	CLK_L_CPU = 0x1 << 0,
+	CLK_L_COP = 0x1 << 1,
+	CLK_L_TRIG_SYS = 0x1 << 2,
+	CLK_L_RTC = 0x1 << 4,
+	CLK_L_TMR = 0x1 << 5,
+	CLK_L_UARTA = 0x1 << 6,
+	CLK_L_UARTB = 0x1 << 7,
+	CLK_L_GPIO = 0x1 << 8,
+	CLK_L_SDMMC2 = 0x1 << 9,
+	CLK_L_SPDIF = 0x1 << 10,
+	CLK_L_I2S1 = 0x1 << 11,
+	CLK_L_I2C1 = 0x1 << 12,
+	CLK_L_NDFLASH = 0x1 << 13,
+	CLK_L_SDMMC1 = 0x1 << 14,
+	CLK_L_SDMMC4 = 0x1 << 15,
+	CLK_L_PWM = 0x1 << 17,
+	CLK_L_I2S2 = 0x1 << 18,
+	CLK_L_EPP = 0x1 << 19,
+	CLK_L_VI = 0x1 << 20,
+	CLK_L_2D = 0x1 << 21,
+	CLK_L_USBD = 0x1 << 22,
+	CLK_L_ISP = 0x1 << 23,
+	CLK_L_3D = 0x1 << 24,
+	CLK_L_DISP2 = 0x1 << 26,
+	CLK_L_DISP1 = 0x1 << 27,
+	CLK_L_HOST1X = 0x1 << 28,
+	CLK_L_VCP = 0x1 << 29,
+	CLK_L_I2S0 = 0x1 << 30,
+	CLK_L_CACHE2 = 0x1 << 31,
+
+	CLK_H_MEM = 0x1 << 0,
+	CLK_H_AHBDMA = 0x1 << 1,
+	CLK_H_APBDMA = 0x1 << 2,
+	CLK_H_KBC = 0x1 << 4,
+	CLK_H_STAT_MON = 0x1 << 5,
+	CLK_H_PMC = 0x1 << 6,
+	CLK_H_FUSE = 0x1 << 7,
+	CLK_H_KFUSE = 0x1 << 8,
+	CLK_H_SBC1 = 0x1 << 9,
+	CLK_H_SNOR = 0x1 << 10,
+	CLK_H_JTAG2TBC = 0x1 << 11,
+	CLK_H_SBC2 = 0x1 << 12,
+	CLK_H_SBC3 = 0x1 << 14,
+	CLK_H_I2C5 = 0x1 << 15,
+	CLK_H_DSI = 0x1 << 16,
+	CLK_H_HSI = 0x1 << 18,
+	CLK_H_HDMI = 0x1 << 19,
+	CLK_H_CSI = 0x1 << 20,
+	CLK_H_I2C2 = 0x1 << 22,
+	CLK_H_UARTC = 0x1 << 23,
+	CLK_H_MIPI_CAL = 0x1 << 24,
+	CLK_H_EMC = 0x1 << 25,
+	CLK_H_USB2 = 0x1 << 26,
+	CLK_H_USB3 = 0x1 << 27,
+	CLK_H_MPE = 0x1 << 28,
+	CLK_H_VDE = 0x1 << 29,
+	CLK_H_BSEA = 0x1 << 30,
+	CLK_H_BSEV = 0x1 << 31,
+
+	CLK_U_UARTD = 0x1 << 1,
+	CLK_U_UARTE = 0x1 << 2,
+	CLK_U_I2C3 = 0x1 << 3,
+	CLK_U_SBC4 = 0x1 << 4,
+	CLK_U_SDMMC3 = 0x1 << 5,
+	CLK_U_PCIE = 0x1 << 6,
+	CLK_U_OWR = 0x1 << 7,
+	CLK_U_AFI = 0x1 << 8,
+	CLK_U_CSITE = 0x1 << 9,
+	CLK_U_PCIEXCLK = 0x1 << 10,
+	CLK_U_AVPUCQ = 0x1 << 11,
+	CLK_U_TRACECLKIN = 0x1 << 13,
+	CLK_U_SOC_THERM = 0x1 << 14,
+	CLK_U_DTV = 0x1 << 15,
+	CLK_U_NAND_SPEED = 0x1 << 16,
+	CLK_U_I2C_SLOW = 0x1 << 17,
+	CLK_U_DSIB = 0x1 << 18,
+	CLK_U_TSEC = 0x1 << 19,
+	CLK_U_IRAMA = 0x1 << 20,
+	CLK_U_IRAMB = 0x1 << 21,
+	CLK_U_IRAMC = 0x1 << 22,
+
+	// Clock reset.
+	CLK_U_EMUCIF = 0x1 << 23,
+	// Clock enable.
+	CLK_U_IRAMD = 0x1 << 23,
+
+	CLK_U_CRAM2 = 0x2 << 24,
+	CLK_U_XUSB_HOST = 0x1 << 25,
+	CLK_U_MSENC = 0x1 << 27,
+	CLK_U_SUS_OUT = 0x1 << 28,
+	CLK_U_DEV2_OUT = 0x1 << 29,
+	CLK_U_DEV1_OUT = 0x1 << 30,
+	CLK_U_XUSB_DEV = 0x1 << 31,
+
+	CLK_V_CPUG = 0x1 << 0,
+	CLK_V_CPULP = 0x1 << 1,
+	CLK_V_3D2 = 0x1 << 2,
+	CLK_V_MSELECT = 0x1 << 3,
+	CLK_V_I2S3 = 0x1 << 5,
+	CLK_V_I2S4 = 0x1 << 6,
+	CLK_V_I2C4 = 0x1 << 7,
+	CLK_V_SBC5 = 0x1 << 8,
+	CLK_V_SBC6 = 0x1 << 9,
+	CLK_V_AUDIO = 0x1 << 10,
+	CLK_V_APBIF = 0x1 << 11,
+	CLK_V_DAM0 = 0x1 << 12,
+	CLK_V_DAM1 = 0x1 << 13,
+	CLK_V_DAM2 = 0x1 << 14,
+	CLK_V_HDA2CODEC_2X = 0x1 << 15,
+	CLK_V_ATOMICS = 0x1 << 16,
+	CLK_V_ACTMON = 0x1 << 23,
+	CLK_V_EXTPERIPH1 = 0x1 << 24,
+	CLK_V_SATA = 0x1 << 28,
+	CLK_V_HDA = 0x1 << 29,
+
+	CLK_W_HDA2HDMICODEC = 0x1 << 0,
+	CLK_W_SATACOLD = 0x1 << 1,
+	CLK_W_CEC = 0x1 << 8,
+	CLK_W_XUSB_PADCTL = 0x1 << 14,
+	CLK_W_ENTROPY = 0x1 << 21,
+	CLK_W_AMX0 = 0x1 << 25,
+	CLK_W_ADX0 = 0x1 << 26,
+	CLK_W_DVFS = 0x1 << 27,
+	CLK_W_XUSB_SS = 0x1 << 28,
+	CLK_W_MC1 = 0x1 << 30,
+	CLK_W_EMC1 = 0x1 << 31,
+
+	CLK_X_AFC0 = 0x1 << 31,
+	CLK_X_AFC1 = 0x1 << 30,
+	CLK_X_AFC2 = 0x1 << 29,
+	CLK_X_AFC3 = 0x1 << 28,
+	CLK_X_AFC4 = 0x1 << 27,
+	CLK_X_AFC5 = 0x1 << 26,
+	CLK_X_AMX1 = 0x1 << 25,
+	CLK_X_GPU = 0x1 << 24,
+	CLK_X_SOR0 = 0x1 << 22,
+	CLK_X_DPAUX = 0x1 << 21,
+	CLK_X_ADX1 = 0x1 << 20,
+	CLK_X_VIC = 0x1 << 18,
+	CLK_X_CLK72MHZ = 0x1 << 17,
+	CLK_X_HDMI_AUDIO = 0x1 << 16,
+	CLK_X_EMC_DLL = 0x1 << 14,
+	CLK_X_VIM2_CLK = 0x1 << 11,
+	CLK_X_I2C6 = 0x1 << 6,
+	CLK_X_CAM_MCLK2 = 0x1 << 5,
+	CLK_X_CAM_MCLK = 0x1 << 4,
+	CLK_X_SPARE = 0x1 << 0,
+};
+
+/* PLL stabilization delay in usec */
+#define CLOCK_PLL_STABLE_DELAY_US 300
+
+#define IO_STABILIZATION_DELAY (2)
+/* Calculate clock fractional divider value from ref and target frequencies.
+ * This is for a U7.1 format. This is not well written up in the book and
+ * there have been some questions about this macro, so here we go.
+ * U7.1 format is defined as (ddddddd+1) + (h*.5)
+ * The lowest order bit is actually a fractional bit.
+ * Hence, the divider can be thought of as 9 bits.
+ * So:
+ * divider = ((ref/freq) << 1 - 1) (upper 7 bits) |
+ *	(ref/freq & 1) (low order half-bit)
+ * however we can't do fractional arithmetic ... these are integers!
+ * So we normalize by shifting the result left 1 bit, and extracting
+ * ddddddd and h directly to the returned u8.
+ * divider = 2*(ref/freq);
+ * We want to
+ * preserve 7 bits of divisor and one bit of fraction, in 8 bits, as well as
+ * subtract one from ddddddd. Since we computed ref*2, the dddddd is now nicely
+ * situated in the upper 7 bits, and the h is sitting there in the low order
+ * bit. To subtract 1 from ddddddd, just subtract 2 from the 8-bit number
+ * and voila, upper 7 bits are (ref/freq-1), and lowest bit is h. Since you
+ * will assign this to a u8, it gets nicely truncated for you.
+ */
+#define CLK_DIVIDER(REF, FREQ)	((((REF) * 2) / (FREQ)) - 2)
+
+/* Calculate clock frequency value from reference and clock divider value
+ * The discussion in the book is pretty lacking.
+ * The idea is that we need to divide a ref clock by a divisor
+ * in U7.1 format, where 7 upper bits are the integer
+ * and lowest order bit is a fraction.
+ * from the book, U7.1 is (ddddddd+1) + (h*.5)
+ * To normalize to an actual number, we might do this:
+ * ((d>>7+1)&0x7f) + (d&1 >> 1)
+ * but as you might guess, the low order bit would be lost.
+ * Since we can't express the fractional bit, we need to multiply it all by 2.
+ * ((d + 2)&0xfe) + (d & 1)
+ * Since we're just adding +2, the lowest order bit is preserved. Hence
+ * (d+2) is the same as ((d + 2)&0xfe) + (d & 1)
+ *
+ * Since you multiply denominator * 2 (by NOT shifting it),
+ * you multiply numerator * 2 to cancel it out.
+ */
+#define CLK_FREQUENCY(REF, REG)	(((REF) * 2) / ((REG) + 2))
+
+#define clock_configure_irregular_source(device, src, freq, src_id) \
+	clrsetbits_le32(&clk_rst->clk_src_##device, \
+		CLK_SOURCE_MASK | CLK_DIVISOR_MASK, \
+		src_id << CLK_SOURCE_SHIFT | \
+		CLK_DIVIDER(TEGRA_##src##_KHZ, freq))
+
+/* Warning: Some devices just use different bits for the same sources for no
+ * apparent reason. *Always* double-check the TRM before trusting this macro. */
+#define clock_configure_source(device, src, freq) \
+	clock_configure_irregular_source(device, src, freq, src)
+
+/* The I2C divisors are not 7.1 divisors like the others, they divide by n + 1
+ * directly. Also, there are internal divisors in the I2C controller itself.
+ * We can deal with those here and make it easier to select what the actual
+ * bus frequency will be. The 0x19 value is the default divisor in the
+ * clk_divisor register in the controller, and 8 is just a magic number in the
+ * documentation. Multiplying by 2 compensates for the different format of the
+ * divisor.
+ */
+#define clock_configure_i2c_scl_freq(device, src, freq) \
+	clock_configure_source(device, src, (freq) * (0x19 + 1) * 8 * 2)
+
+enum clock_source {  /* Careful: Not true for all sources, always check TRM! */
+	PLLP = 0,
+	PLLC2 = 1,
+	PLLC = 2,
+	PLLD = 2,
+	PLLC3 = 3,
+	PLLA = 3,
+	PLLM = 4,
+	PLLD2 = 5,
+	CLK_M = 6,
+};
+
+/* soc-specific */
+#define TEGRA_CLK_M_KHZ	 clock_get_osc_khz()
+#define TEGRA_PLLX_KHZ   CONFIG_PLLX_KHZ
+#define TEGRA_PLLP_KHZ   (408000)
+#define TEGRA_PLLC_KHZ   (600000)
+#define TEGRA_PLLD_KHZ   (925000)
+#define TEGRA_PLLU_KHZ   (960000)
+
+int clock_get_osc_khz(void);
+void clock_early_uart(void);
+void clock_external_output(int clk_id);
+void clock_sdram(u32 m, u32 n, u32 p, u32 setup, u32 ph45, u32 ph90,
+		 u32 ph135, u32 kvco, u32 kcp, u32 stable_time, u32 emc_source,
+		 u32 same_freq);
+void clock_cpu0_config_and_reset(void * entry);
+void clock_halt_avp(void);
+void clock_enable_clear_reset(u32 l, u32 h, u32 u, u32 v, u32 w, u32 x);
+void clock_init(void);
+void clock_init_arm_generic_timer(void);
+void sor_clock_stop(void);
+void sor_clock_start(void);
+
+#endif /* __SOC_NVIDIA_TEGRA132_CLOCK_H__ */
+
diff --git a/src/soc/nvidia/tegra132/include/soc/display.h b/src/soc/nvidia/tegra132/include/soc/display.h
new file mode 100644
index 0000000000..2c21292e64
--- /dev/null
+++ b/src/soc/nvidia/tegra132/include/soc/display.h
@@ -0,0 +1,202 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __SOC_NVIDIA_TEGRA132_INCLUDE_SOC_DISPLAY_H__
+#define __SOC_NVIDIA_TEGRA132_INCLUDE_SOC_DISPLAY_H__
+
+/* ardisplay.h */
+#define DC_CMD_DISPLAY_WINDOW_HEADER_0		0x42
+#define DC_COM_CRC_CONTROL_0			0x300
+#define DC_COM_CRC_CHECKSUM_0			0x301
+#define DC_COM_PIN_OUTPUT_ENABLE0_0		0x302
+#define DC_COM_PIN_OUTPUT_ENABLE1_0		0x303
+#define DC_COM_PIN_OUTPUT_ENABLE2_0		0x304
+#define DC_COM_PIN_OUTPUT_ENABLE3_0		0x305
+#define DC_CMD_STATE_ACCESS_0			0x40
+#define DC_DISP_DISP_CLOCK_CONTROL_0		0x42e
+#define DC_DISP_DISP_TIMING_OPTIONS_0		0x405
+#define DC_DISP_REF_TO_SYNC_0			0x406
+#define DC_DISP_SYNC_WIDTH_0			0x407
+#define DC_DISP_BACK_PORCH_0			0x408
+#define DC_DISP_DISP_ACTIVE_0			0x409
+#define DC_DISP_FRONT_PORCH_0			0x40a
+#define DC_DISP_DISP_WIN_OPTIONS_0		0x402
+#define DC_DISP_DISP_WIN_OPTIONS_0_SOR_ENABLE_SHIFT	25
+#define DC_DISP_DISP_WIN_OPTIONS_0_SOR_ENABLE_FIELD	(0x1 << DC_DISP_DISP_WIN_OPTIONS_0_SOR_ENABLE_SHIFT)
+#define DC_DISP_DISP_SIGNAL_OPTIONS0_0		0x400
+#define DC_DISP_BLEND_BACKGROUND_COLOR_0	0x4e4
+#define DC_CMD_DISPLAY_COMMAND_0		0x32
+#define DC_CMD_STATE_CONTROL_0			0x41
+#define DC_CMD_DISPLAY_POWER_CONTROL_0		0x36
+
+/* ardisplay_a.h */
+#define DC_WIN_A_WIN_OPTIONS_0			0x700
+#define DC_WIN_A_WIN_OPTIONS_0_A_WIN_ENABLE_SHIFT	30
+#define DC_WIN_A_WIN_OPTIONS_0_A_WIN_ENABLE_FIELD	(0x1 << DC_WIN_A_WIN_OPTIONS_0_A_WIN_ENABLE_SHIFT)
+#define DC_WIN_A_WIN_OPTIONS_0_A_WIN_ENABLE_ENABLE	(1)
+#define DC_WIN_A_BYTE_SWAP_0			0x701
+#define DC_WIN_A_BUFFER_CONTROL_0		0x702
+#define DC_WIN_A_COLOR_DEPTH_0			0x703
+#define DC_WIN_A_POSITION_0			0x704
+#define DC_WIN_A_SIZE_0				0x705
+#define DC_WIN_A_PRESCALED_SIZE_0		0x706
+#define DC_WIN_A_H_INITIAL_DDA_0		0x707
+#define DC_WIN_A_V_INITIAL_DDA_0		0x708
+#define DC_WIN_A_DDA_INCREMENT_0		0x709
+#define DC_WIN_A_LINE_STRIDE_0			0x70a
+#define DC_WIN_A_DV_CONTROL_0			0x70e
+#define DC_WIN_A_BLEND_LAYER_CONTROL_0		0x716
+#define DC_WIN_A_BLEND_MATCH_SELECT_0		0x717
+#define DC_WIN_A_BLEND_NOMATCH_SELECT_0		0x718
+#define DC_WIN_A_BLEND_ALPHA_1BIT_0		0x719
+#define DC_WINBUF_A_START_ADDR_LO_0		0x800
+#define DC_WINBUF_A_START_ADDR_HI_0		0x80d
+#define DC_WINBUF_A_ADDR_H_OFFSET_0		0x806
+#define DC_WINBUF_A_ADDR_V_OFFSET_0		0x808
+
+/* ardisplay_bd.h */
+#define DC_B_WIN_BD_SIZE_0			0xd85
+#define DC_B_WIN_BD_PRESCALED_SIZE_0		0xd86
+#define DC_B_WIN_BD_LINE_STRIDE_0		0xd8a
+#define DC_B_WIN_BD_COLOR_DEPTH_0		0xd83
+#define DC_B_WINBUF_BD_START_ADDR_0		0xdc0
+#define DC_B_WIN_BD_DDA_INCREMENT_0		0xd89
+#define DC_B_WIN_BD_WIN_OPTIONS_0		0xd80
+#define DC_B_WIN_BD_WIN_OPTIONS_0_BD_WIN_ENABLE_SHIFT	30
+#define DC_B_WIN_BD_WIN_OPTIONS_0_BD_WIN_ENABLE_FIELD	(0x1 << DC_B_WIN_BD_WIN_OPTIONS_0_BD_WIN_ENABLE_SHIFT)
+#define DC_B_WIN_BD_WIN_OPTIONS_0_BD_WIN_ENABLE_ENABLE	(1)
+
+/* arsor.h */
+#define SOR_NV_PDISP_SOR_CLK_CNTRL_0		0x13
+#define SOR_NV_PDISP_SOR_DP_PADCTL0_0		0x5c
+#define SOR_NV_PDISP_SOR_PLL0_0			0x17
+#define SOR_NV_PDISP_SOR_PLL1_0			0x18
+#define SOR_NV_PDISP_SOR_PLL2_0			0x19
+#define SOR_NV_PDISP_SOR_PLL3_0			0x1a
+#define SOR_NV_PDISP_SOR_PLL2_0_AUX6_SHIFT	22
+#define SOR_NV_PDISP_SOR_PLL2_0_AUX6_FIELD	(0x1 << SOR_NV_PDISP_SOR_PLL2_0_AUX6_SHIFT)
+#define SOR_NV_PDISP_SOR_PLL0_0_PWR_SHIFT	0
+#define SOR_NV_PDISP_SOR_PLL0_0_PWR_FIELD	(0x1 << SOR_NV_PDISP_SOR_PLL0_0_PWR_SHIFT)
+#define SOR_NV_PDISP_SOR_PLL0_0_VCOPD_SHIFT	2
+#define SOR_NV_PDISP_SOR_PLL0_0_VCOPD_FIELD	(0x1 << SOR_NV_PDISP_SOR_PLL0_0_VCOPD_SHIFT)
+#define SOR_NV_PDISP_SOR_PLL2_0_AUX8_SHIFT	24
+#define SOR_NV_PDISP_SOR_PLL2_0_AUX8_FIELD	(0x1 << SOR_NV_PDISP_SOR_PLL2_0_AUX8_SHIFT)
+#define SOR_NV_PDISP_SOR_PLL2_0_AUX7_SHIFT	23
+#define SOR_NV_PDISP_SOR_PLL2_0_AUX7_FIELD	(0x1 << SOR_NV_PDISP_SOR_PLL2_0_AUX7_SHIFT)
+#define SOR_NV_PDISP_SOR_PLL2_0_AUX9_SHIFT	25
+#define SOR_NV_PDISP_SOR_PLL2_0_AUX9_FIELD	(0x1 << SOR_NV_PDISP_SOR_PLL2_0_AUX9_SHIFT)
+#define SOR_NV_PDISP_SOR_LANE_DRIVE_CURRENT0_0	0x4e
+#define SOR_NV_PDISP_SOR_LANE_PREEMPHASIS0_0	0x52
+#define SOR_NV_PDISP_SOR_POSTCURSOR0_0		0x56
+#define SOR_NV_PDISP_SOR_DP_PADCTL0_0		0x5c
+#define SOR_NV_PDISP_SOR_DP_PADCTL0_0_TX_PU_VALUE_SHIFT	8
+#define SOR_NV_PDISP_SOR_DP_PADCTL0_0_TX_PU_VALUE_FIELD	(0xff << SOR_NV_PDISP_SOR_DP_PADCTL0_0_TX_PU_VALUE_SHIFT)
+#define SOR_NV_PDISP_SOR_DP_PADCTL0_0_TX_PU_SHIFT	22
+#define SOR_NV_PDISP_SOR_DP_PADCTL0_0_TX_PU_FIELD	(0x1 << SOR_NV_PDISP_SOR_DP_PADCTL0_0_TX_PU_SHIFT)
+#define SOR_NV_PDISP_SOR_LVDS_0			0x1c
+#define SOR_NV_PDISP_SOR_CLK_CNTRL_0		0x13
+#define SOR_NV_PDISP_SOR_DP_LINKCTL0_0		0x4c
+#define SOR_NV_PDISP_SOR_LANE_SEQ_CTL_0		0x21
+#define SOR_NV_PDISP_SOR_DP_TPG_0		0x6d
+#define SOR_NV_PDISP_HEAD_STATE1_0		0x7
+#define SOR_NV_PDISP_HEAD_STATE2_0		0x9
+#define SOR_NV_PDISP_HEAD_STATE3_0		0xb
+#define SOR_NV_PDISP_HEAD_STATE4_0		0xd
+#define SOR_NV_PDISP_SOR_STATE1_0		0x4
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_HSYNCPOL_SHIFT	12
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_HSYNCPOL_FIELD	(0x1 << SOR_NV_PDISP_SOR_STATE1_0_ASY_HSYNCPOL_SHIFT)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_VSYNCPOL_SHIFT	13
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_VSYNCPOL_FIELD	(0x1 << SOR_NV_PDISP_SOR_STATE1_0_ASY_VSYNCPOL_SHIFT)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PROTOCOL_SHIFT	8
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PROTOCOL_FIELD	(0xf << SOR_NV_PDISP_SOR_STATE1_0_ASY_PROTOCOL_SHIFT)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PROTOCOL_LVDS_CUSTOM	(0)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PROTOCOL_DP_A		(8)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PROTOCOL_DP_B		(9)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PROTOCOL_CUSTOM		(15)
+
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_CRCMODE_ACTIVE_RASTER	(0)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_CRCMODE_COMPLETE_RASTER	(1)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_CRCMODE_NON_ACTIVE_RASTER	(2)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_CRCMODE_SHIFT		6
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_CRCMODE_FIELD		(0x3 << SOR_NV_PDISP_SOR_STATE1_0_ASY_CRCMODE_SHIFT)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_SUBOWNER_SHIFT		4
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_SUBOWNER_FIELD		(0x3 << SOR_NV_PDISP_SOR_STATE1_0_ASY_SUBOWNER_SHIFT)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_SUBOWNER_NONE		(0)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_SUBOWNER_SUBHEAD0		(1)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_SUBOWNER_SUBHEAD1		(2)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_SUBOWNER_BOTH		(3)
+
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_OWNER_SHIFT		0
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_OWNER_FIELD		(0xf << SOR_NV_PDISP_SOR_STATE1_0_ASY_OWNER_SHIFT)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_OWNER_NONE		(0)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_OWNER_HEAD0		(1)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_OWNER_HEAD1		(2)
+
+#define SOR_NV_PDISP_SOR_DP_CONFIG0_0				0x58
+#define SOR_NV_PDISP_SOR_DP_CONFIG0_0_ACTIVESYM_POLARITY_SHIFT	24
+#define SOR_NV_PDISP_SOR_DP_CONFIG0_0_ACTIVESYM_POLARITY_FIELD	(0x1 << SOR_NV_PDISP_SOR_DP_CONFIG0_0_ACTIVESYM_POLARITY_SHIFT)
+#define SOR_NV_PDISP_SOR_DP_CONFIG0_0_ACTIVESYM_FRAC_SHIFT	16
+#define SOR_NV_PDISP_SOR_DP_CONFIG0_0_ACTIVESYM_FRAC_FIELD	(0xf << SOR_NV_PDISP_SOR_DP_CONFIG0_0_ACTIVESYM_FRAC_SHIFT)
+#define SOR_NV_PDISP_SOR_DP_CONFIG0_0_ACTIVESYM_COUNT_SHIFT	8
+#define SOR_NV_PDISP_SOR_DP_CONFIG0_0_ACTIVESYM_COUNT_FIELD	(0x7f << SOR_NV_PDISP_SOR_DP_CONFIG0_0_ACTIVESYM_COUNT_SHIFT)
+#define SOR_NV_PDISP_SOR_DP_CONFIG0_0_WATERMARK_SHIFT		0
+#define SOR_NV_PDISP_SOR_DP_CONFIG0_0_WATERMARK_FIELD		(0x3f << SOR_NV_PDISP_SOR_DP_CONFIG0_0_WATERMARK_SHIFT)
+#define SOR_NV_PDISP_SOR_DP_LINKCTL0_0_TUSIZE_SHIFT		2
+#define SOR_NV_PDISP_SOR_DP_LINKCTL0_0_TUSIZE_FIELD		(0x7f << SOR_NV_PDISP_SOR_DP_LINKCTL0_0_TUSIZE_SHIFT)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_SHIFT		17
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_FIELD		(0xf << SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_SHIFT)
+
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_DEFAULTVAL	(0)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_BPP_16_422	(1)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_BPP_18_444	(2)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_BPP_20_422	(3)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_BPP_24_422	(4)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_BPP_24_444	(5)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_BPP_30_444	(6)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_BPP_32_422	(7)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_BPP_36_444	(8)
+#define SOR_NV_PDISP_SOR_STATE1_0_ASY_PIXELDEPTH_BPP_48_444	(9)
+
+#define SOR_NV_PDISP_SOR_CRC_CNTRL_0				0x11
+#define SOR_NV_PDISP_SOR_DP_AUDIO_VBLANK_SYMBOLS_0		0x64
+#define SOR_NV_PDISP_SOR_DP_SPARE0_0				0x60
+#define SOR_NV_PDISP_SOR_PWR_0					0x15
+#define SOR_NV_PDISP_SOR_STATE0_0				0x3
+#define SOR_NV_PDISP_SOR_SUPER_STATE1_0				0x2
+#define SOR_NV_PDISP_SOR_SUPER_STATE0_0				0x1
+
+/* ardpaux.h */
+#define DPAUX_DP_AUXDATA_READ_W0				0x19
+
+#define DP_LVDS_SHIFT	25
+#define DP_LVDS		(1 << DP_LVDS_SHIFT)
+
+#define SRC_BPP		16
+#define COLORDEPTH	0x6
+#define COLOR_WHITE	0xFFFFFF
+
+struct soc_nvidia_tegra132_config;	/* forward declaration */
+void setup_display(struct soc_nvidia_tegra132_config *config);
+void init_dca_regs(void);
+void dp_io_powerup(void);
+u32 dp_setup_timing(u32 width, u32 height);
+void dp_misc_setting(u32 panel_bpp, u32 width, u32 height, u32 winb_addr,
+		     u32 lane_count, u32 enhanced_framing, u32 panel_edp,
+		     u32 pclkfreq, u32 linkfreq);
+
+#define FB_SIZE_MB (32)
+
+#endif /* __SOC_NVIDIA_TEGRA132_INCLUDE_SOC_DISPLAY_H__ */
diff --git a/src/soc/nvidia/tegra132/timer.c b/src/soc/nvidia/tegra132/timer.c
new file mode 100644
index 0000000000..e2b0b82f1e
--- /dev/null
+++ b/src/soc/nvidia/tegra132/timer.c
@@ -0,0 +1,31 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 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 <timer.h>
+#include <delay.h>
+#include <thread.h>
+
+void init_timer(void)
+{
+}
+
+void udelay(unsigned usec)
+{
+}