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authorArthur Heymans <arthur@aheymans.xyz>2019-11-15 12:51:51 +0100
committerPatrick Georgi <pgeorgi@google.com>2019-11-29 17:34:12 +0000
commit179da7fb5cff3c9034dc3203086c84342560c600 (patch)
treea0ee100f05dd58d34f1412923227c86088edd696 /src/soc/intel/baytrail
parent6229cc93ff16a5a9a424a0323fd631c8b3e1c943 (diff)
downloadcoreboot-179da7fb5cff3c9034dc3203086c84342560c600.tar.xz
soc/intel/baytrail: Move to C_ENVIRONMENT_BOOTBLOCK
This moves programming BAR's and setting up console in the bootblock. Change-Id: I062461cb7bfba2c4df4c20707ecda32f9857b164 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36873 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/baytrail')
-rw-r--r--src/soc/intel/baytrail/Kconfig20
-rw-r--r--src/soc/intel/baytrail/Makefile.inc10
-rw-r--r--src/soc/intel/baytrail/bootblock/bootblock.c118
-rw-r--r--src/soc/intel/baytrail/include/soc/romstage.h2
-rw-r--r--src/soc/intel/baytrail/romstage/Makefile.inc4
-rw-r--r--src/soc/intel/baytrail/romstage/pmc.c10
-rw-r--r--src/soc/intel/baytrail/romstage/romstage.c60
-rw-r--r--src/soc/intel/baytrail/romstage/uart.c34
8 files changed, 98 insertions, 160 deletions
diff --git a/src/soc/intel/baytrail/Kconfig b/src/soc/intel/baytrail/Kconfig
index e96b53d321..94ed887d5c 100644
--- a/src/soc/intel/baytrail/Kconfig
+++ b/src/soc/intel/baytrail/Kconfig
@@ -38,16 +38,11 @@ config CPU_SPECIFIC_OPTIONS
select INTEL_GMA_SWSMISCI
select CPU_INTEL_COMMON
select CPU_HAS_L2_ENABLE_MSR
- select ROMCC_BOOTBLOCK
config VBOOT
select VBOOT_MUST_REQUEST_DISPLAY
select VBOOT_STARTS_IN_ROMSTAGE
-config BOOTBLOCK_CPU_INIT
- string
- default "soc/intel/baytrail/bootblock/bootblock.c"
-
config MMCONF_BASE_ADDRESS
hex
default 0xe0000000
@@ -97,14 +92,9 @@ config MRC_RMT
# +-------------+ DCACHE_RAM_BASE + DCACHE_RAM_SIZE + DCACHE_RAM_MRC_VAR_SIZE
# | MRC usage |
# | |
-# +-------------+ DCACHE_RAM_BASE + DCACHE_RAM_SIZE
-# | Stack |
-# | | |
-# | v |
-# +-------------+
-# | ^ |
-# | | |
-# | CAR Globals |
+# -------------+ DCACHE_RAM_BASE + DCACHE_RAM_SIZE
+# | coreboot |
+# | usage |
# +-------------+ DCACHE_RAM_BASE
#
# Note that the MRC binary is linked to assume the region marked as "MRC usage"
@@ -130,6 +120,10 @@ config DCACHE_RAM_MRC_VAR_SIZE
help
The amount of cache-as-ram region required by the reference code.
+config DCACHE_BSP_STACK_SIZE
+ hex
+ default 0x2000
+
config RESET_ON_INVALID_RAMSTAGE_CACHE
bool "Reset the system on S3 wake when ramstage cache invalid."
default n
diff --git a/src/soc/intel/baytrail/Makefile.inc b/src/soc/intel/baytrail/Makefile.inc
index 2c49c63454..1769b53085 100644
--- a/src/soc/intel/baytrail/Makefile.inc
+++ b/src/soc/intel/baytrail/Makefile.inc
@@ -9,14 +9,19 @@ subdirs-y += ../../../cpu/intel/microcode
subdirs-y += ../../../cpu/intel/turbo
subdirs-y += ../../../cpu/intel/common
+all-y += tsc_freq.c
+
+bootblock-y += ../../../cpu/intel/car/non-evict/cache_as_ram.S
+bootblock-y += ../../../cpu/intel/car/bootblock.c
+bootblock-y += ../../../cpu/x86/early_reset.S
+bootblock-y += bootblock/bootblock.c
+
romstage-y += iosf.c
romstage-y += memmap.c
romstage-y += pmutil.c
-romstage-y += tsc_freq.c
postcar-y += iosf.c
postcar-y += memmap.c
-postcar-y += tsc_freq.c
ramstage-y += acpi.c
ramstage-y += chip.c
@@ -41,7 +46,6 @@ ramstage-y += scc.c
ramstage-y += sd.c
ramstage-y += smm.c
ramstage-y += southcluster.c
-ramstage-y += tsc_freq.c
ramstage-y += xhci.c
ramstage-$(CONFIG_ELOG) += elog.c
ramstage-$(CONFIG_HAVE_REFCODE_BLOB) += refcode.c
diff --git a/src/soc/intel/baytrail/bootblock/bootblock.c b/src/soc/intel/baytrail/bootblock/bootblock.c
index b2cdf9d766..1c5bfc54d6 100644
--- a/src/soc/intel/baytrail/bootblock/bootblock.c
+++ b/src/soc/intel/baytrail/bootblock/bootblock.c
@@ -13,38 +13,14 @@
* GNU General Public License for more details.
*/
+#include <cpu/intel/car/bootblock.h>
#include <device/pci_ops.h>
-#include <cpu/x86/cache.h>
-#include <cpu/x86/msr.h>
-#include <cpu/x86/mtrr.h>
#include <soc/iosf.h>
-#include <cpu/intel/microcode/microcode.c>
-
-static void set_var_mtrr(int reg, uint32_t base, uint32_t size, int type)
-{
- msr_t basem, maskm;
- basem.lo = base | type;
- basem.hi = 0;
- wrmsr(MTRR_PHYS_BASE(reg), basem);
- maskm.lo = ~(size - 1) | MTRR_PHYS_MASK_VALID;
- maskm.hi = (1 << (CONFIG_CPU_ADDR_BITS - 32)) - 1;
- wrmsr(MTRR_PHYS_MASK(reg), maskm);
-}
-
-static void enable_rom_caching(void)
-{
- msr_t msr;
-
- disable_cache();
- /* Why only top 4MiB ? */
- set_var_mtrr(1, 0xffc00000, 4*1024*1024, MTRR_TYPE_WRPROT);
- enable_cache();
-
- /* Enable Variable MTRRs */
- msr.hi = 0x00000000;
- msr.lo = 0x00000800;
- wrmsr(MTRR_DEF_TYPE_MSR, msr);
-}
+#include <soc/iomap.h>
+#include <soc/gpio.h>
+#include <soc/lpc.h>
+#include <soc/spi.h>
+#include <soc/pmc.h>
static void setup_mmconfig(void)
{
@@ -64,12 +40,86 @@ static void setup_mmconfig(void)
pci_io_write_config32(IOSF_PCI_DEV, MCR_REG, reg);
}
-static void bootblock_cpu_init(void)
+static void program_base_addresses(void)
+{
+ uint32_t reg;
+ const uint32_t lpc_dev = PCI_DEV(0, LPC_DEV, LPC_FUNC);
+
+ /* Memory Mapped IO registers. */
+ reg = PMC_BASE_ADDRESS | 2;
+ pci_write_config32(lpc_dev, PBASE, reg);
+ reg = IO_BASE_ADDRESS | 2;
+ pci_write_config32(lpc_dev, IOBASE, reg);
+ reg = ILB_BASE_ADDRESS | 2;
+ pci_write_config32(lpc_dev, IBASE, reg);
+ reg = SPI_BASE_ADDRESS | 2;
+ pci_write_config32(lpc_dev, SBASE, reg);
+ reg = MPHY_BASE_ADDRESS | 2;
+ pci_write_config32(lpc_dev, MPBASE, reg);
+ reg = PUNIT_BASE_ADDRESS | 2;
+ pci_write_config32(lpc_dev, PUBASE, reg);
+ reg = RCBA_BASE_ADDRESS | 1;
+ pci_write_config32(lpc_dev, RCBA, reg);
+
+ /* IO Port Registers. */
+ reg = ACPI_BASE_ADDRESS | 2;
+ pci_write_config32(lpc_dev, ABASE, reg);
+ reg = GPIO_BASE_ADDRESS | 2;
+ pci_write_config32(lpc_dev, GBASE, reg);
+}
+
+static void spi_init(void)
+{
+ u32 *scs = (u32 *)(SPI_BASE_ADDRESS + SCS);
+ u32 *bcr = (u32 *)(SPI_BASE_ADDRESS + BCR);
+ uint32_t reg;
+
+ /* Disable generating SMI when setting WPD bit. */
+ write32(scs, read32(scs) & ~SMIWPEN);
+ /*
+ * Enable caching and prefetching in the SPI controller. Disable
+ * the SMM-only BIOS write and set WPD bit.
+ */
+ reg = (read32(bcr) & ~SRC_MASK) | SRC_CACHE_PREFETCH | BCR_WPD;
+ reg &= ~EISS;
+ write32(bcr, reg);
+}
+
+static void tco_disable(void)
+{
+ uint32_t reg;
+
+ reg = inl(ACPI_BASE_ADDRESS + TCO1_CNT);
+ reg |= TCO_TMR_HALT;
+ outl(reg, ACPI_BASE_ADDRESS + TCO1_CNT);
+}
+
+static void byt_config_com1_and_enable(void)
+{
+ uint32_t reg;
+
+ /* Enable the UART hardware for COM1. */
+ reg = 1;
+ pci_write_config32(PCI_DEV(0, LPC_DEV, 0), UART_CONT, reg);
+
+ /* Set up the pads to select the UART function */
+ score_select_func(UART_RXD_PAD, 1);
+ score_select_func(UART_TXD_PAD, 1);
+}
+
+/* The distinction between nb/sb/cpu is not applicable here so
+ just pick the one that is called first. */
+void bootblock_early_northbridge_init(void)
{
/* Allow memory-mapped PCI config access. */
setup_mmconfig();
- /* Load microcode before any caching. */
- intel_update_microcode_from_cbfs();
- enable_rom_caching();
+ program_base_addresses();
+
+ tco_disable();
+
+ if (CONFIG(ENABLE_BUILTIN_COM1))
+ byt_config_com1_and_enable();
+
+ spi_init();
}
diff --git a/src/soc/intel/baytrail/include/soc/romstage.h b/src/soc/intel/baytrail/include/soc/romstage.h
index e86861c4bf..16f80b4a4f 100644
--- a/src/soc/intel/baytrail/include/soc/romstage.h
+++ b/src/soc/intel/baytrail/include/soc/romstage.h
@@ -24,8 +24,6 @@ void mainboard_fill_mrc_params(struct mrc_params *mp);
void raminit(struct mrc_params *mp, int prev_sleep_state);
void gfx_init(void);
-void tco_disable(void);
void punit_init(void);
-void byt_config_com1_and_enable(void);
#endif /* _BAYTRAIL_ROMSTAGE_H_ */
diff --git a/src/soc/intel/baytrail/romstage/Makefile.inc b/src/soc/intel/baytrail/romstage/Makefile.inc
index 2effbb08f6..58d7889917 100644
--- a/src/soc/intel/baytrail/romstage/Makefile.inc
+++ b/src/soc/intel/baytrail/romstage/Makefile.inc
@@ -1,9 +1,5 @@
-cpu_incs-y += $(src)/cpu/intel/car/non-evict/cache_as_ram.S
-cpu_incs-y += $(obj)/fmap_config.h
-
romstage-y += ../../../../cpu/intel/car/romstage.c
romstage-y += romstage.c
romstage-y += raminit.c
-romstage-$(CONFIG_ENABLE_BUILTIN_COM1) += uart.c
romstage-y += gfx.c
romstage-y += pmc.c
diff --git a/src/soc/intel/baytrail/romstage/pmc.c b/src/soc/intel/baytrail/romstage/pmc.c
index 2eb3846c4f..11b3b0f8bc 100644
--- a/src/soc/intel/baytrail/romstage/pmc.c
+++ b/src/soc/intel/baytrail/romstage/pmc.c
@@ -14,7 +14,6 @@
*/
#include <stddef.h>
-#include <arch/io.h>
#include <device/pci_ops.h>
#include <console/console.h>
#include <device/device.h>
@@ -27,15 +26,6 @@
#include <soc/romstage.h>
#include "../chip.h"
-void tco_disable(void)
-{
- uint32_t reg;
-
- reg = inl(ACPI_BASE_ADDRESS + TCO1_CNT);
- reg |= TCO_TMR_HALT;
- outl(reg, ACPI_BASE_ADDRESS + TCO1_CNT);
-}
-
/* This sequence signals the PUNIT to start running. */
void punit_init(void)
{
diff --git a/src/soc/intel/baytrail/romstage/romstage.c b/src/soc/intel/baytrail/romstage/romstage.c
index 7c129e258e..25cb6617f6 100644
--- a/src/soc/intel/baytrail/romstage/romstage.c
+++ b/src/soc/intel/baytrail/romstage/romstage.c
@@ -27,60 +27,11 @@
#include <romstage_handoff.h>
#include <string.h>
#include <timestamp.h>
-#include <vendorcode/google/chromeos/chromeos.h>
-#include <soc/gpio.h>
#include <soc/iomap.h>
-#include <soc/lpc.h>
#include <soc/msr.h>
#include <soc/pci_devs.h>
#include <soc/pmc.h>
#include <soc/romstage.h>
-#include <soc/spi.h>
-
-static void program_base_addresses(void)
-{
- uint32_t reg;
- const uint32_t lpc_dev = PCI_DEV(0, LPC_DEV, LPC_FUNC);
-
- /* Memory Mapped IO registers. */
- reg = PMC_BASE_ADDRESS | 2;
- pci_write_config32(lpc_dev, PBASE, reg);
- reg = IO_BASE_ADDRESS | 2;
- pci_write_config32(lpc_dev, IOBASE, reg);
- reg = ILB_BASE_ADDRESS | 2;
- pci_write_config32(lpc_dev, IBASE, reg);
- reg = SPI_BASE_ADDRESS | 2;
- pci_write_config32(lpc_dev, SBASE, reg);
- reg = MPHY_BASE_ADDRESS | 2;
- pci_write_config32(lpc_dev, MPBASE, reg);
- reg = PUNIT_BASE_ADDRESS | 2;
- pci_write_config32(lpc_dev, PUBASE, reg);
- reg = RCBA_BASE_ADDRESS | 1;
- pci_write_config32(lpc_dev, RCBA, reg);
-
- /* IO Port Registers. */
- reg = ACPI_BASE_ADDRESS | 2;
- pci_write_config32(lpc_dev, ABASE, reg);
- reg = GPIO_BASE_ADDRESS | 2;
- pci_write_config32(lpc_dev, GBASE, reg);
-}
-
-static void spi_init(void)
-{
- u32 *scs = (u32 *)(SPI_BASE_ADDRESS + SCS);
- u32 *bcr = (u32 *)(SPI_BASE_ADDRESS + BCR);
- uint32_t reg;
-
- /* Disable generating SMI when setting WPD bit. */
- write32(scs, read32(scs) & ~SMIWPEN);
- /*
- * Enable caching and prefetching in the SPI controller. Disable
- * the SMM-only BIOS write and set WPD bit.
- */
- reg = (read32(bcr) & ~SRC_MASK) | SRC_CACHE_PREFETCH | BCR_WPD;
- reg &= ~EISS;
- write32(bcr, reg);
-}
static struct chipset_power_state power_state;
@@ -158,17 +109,6 @@ void mainboard_romstage_entry(void)
int prev_sleep_state;
struct mrc_params mp;
- program_base_addresses();
-
- tco_disable();
-
- if (CONFIG(ENABLE_BUILTIN_COM1))
- byt_config_com1_and_enable();
-
- console_init();
-
- spi_init();
-
set_max_freq();
punit_init();
diff --git a/src/soc/intel/baytrail/romstage/uart.c b/src/soc/intel/baytrail/romstage/uart.c
deleted file mode 100644
index f9f2fe4238..0000000000
--- a/src/soc/intel/baytrail/romstage/uart.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 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.
- */
-
-#include <device/pci_ops.h>
-#include <soc/gpio.h>
-#include <soc/iomap.h>
-#include <soc/lpc.h>
-#include <soc/pci_devs.h>
-#include <soc/romstage.h>
-
-void byt_config_com1_and_enable(void)
-{
- uint32_t reg;
-
- /* Enable the UART hardware for COM1. */
- reg = 1;
- pci_write_config32(PCI_DEV(0, LPC_DEV, 0), UART_CONT, reg);
-
- /* Set up the pads to select the UART function */
- score_select_func(UART_RXD_PAD, 1);
- score_select_func(UART_TXD_PAD, 1);
-}