From 2882253237f254d5f78b7531ef3cefb974cd4bbb Mon Sep 17 00:00:00 2001 From: Arthur Heymans Date: Thu, 10 Oct 2019 15:50:04 +0200 Subject: nb/intel/nehalem: Move to C_ENVIRONMENT_BOOTBLOCK A few notable changes: - Microcode init is done in assembly during the CAR init. - The DCACHE_BSP_STACK_SIZE is set to 0x2000, which is the same size against which the romstage stack guards protected. - The romstage mainboard_lpc_init() hook is removed in favor of the existing bootblock_mainboard_early_init(). Change-Id: Iccd7ceaa35db49e170bfb901bbff1c1a11223c63 Signed-off-by: Arthur Heymans Reviewed-on: https://review.coreboot.org/c/coreboot/+/35951 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber --- src/southbridge/intel/ibexpeak/bootblock.c | 62 +++++++++++++++++++++++------- 1 file changed, 49 insertions(+), 13 deletions(-) (limited to 'src/southbridge/intel/ibexpeak/bootblock.c') diff --git a/src/southbridge/intel/ibexpeak/bootblock.c b/src/southbridge/intel/ibexpeak/bootblock.c index 0086fe3281..599e182a59 100644 --- a/src/southbridge/intel/ibexpeak/bootblock.c +++ b/src/southbridge/intel/ibexpeak/bootblock.c @@ -14,7 +14,9 @@ */ #include +#include #include "pch.h" +#include "chip.h" /* * Enable Prefetching and Caching. @@ -32,18 +34,7 @@ static void enable_spi_prefetch(void) static void enable_port80_on_lpc(void) { - pci_devfn_t dev = PCH_LPC_DEV; - - /* Enable port 80 POST on LPC */ - pci_write_config32(dev, RCBA, (uintptr_t)DEFAULT_RCBA | 1); -#if 0 - RCBA32(GCS) &= (~0x04); -#else - volatile u32 *gcs = (volatile u32 *)(DEFAULT_RCBA + GCS); - u32 reg32 = *gcs; - reg32 = reg32 & ~0x04; - *gcs = reg32; -#endif + RCBA32(GCS) &= ~4; } static void set_spi_speed(void) @@ -66,12 +57,57 @@ static void set_spi_speed(void) RCBA8(0x3893) = ssfc; } -static void bootblock_southbridge_init(void) +static void early_lpc_init(void) +{ + const struct device *dev = pcidev_on_root(0x1f, 0); + const struct southbridge_intel_ibexpeak_config *config = NULL; + + /* Add some default decode ranges: + - 0x2e/2f, 0x4e/0x4f + - EC/Mouse/KBC 60/64, 62/66 + - 0x3f8 COMA + If more are needed, update in mainboard_lpc_init hook + */ + pci_write_config16(PCH_LPC_DEV, LPC_EN, + CNF2_LPC_EN | CNF1_LPC_EN | MC_LPC_EN | KBC_LPC_EN | + COMA_LPC_EN); + pci_write_config16(PCH_LPC_DEV, LPC_IO_DEC, 0x10); + + /* Clear PWR_FLR */ + pci_write_config8(PCH_LPC_DEV, GEN_PMCON_3, + (pci_read_config8(PCH_LPC_DEV, GEN_PMCON_3) & ~2) | 1); + + pci_write_config32(PCH_LPC_DEV, ETR3, + pci_read_config32(PCH_LPC_DEV, ETR3) & ~ETR3_CF9GR); + + /* Set up generic decode ranges */ + if (!dev) + return; + if (dev->chip_info) + config = dev->chip_info; + if (!config) + return; + + pci_write_config32(PCH_LPC_DEV, LPC_GEN1_DEC, config->gen1_dec); + pci_write_config32(PCH_LPC_DEV, LPC_GEN2_DEC, config->gen2_dec); + pci_write_config32(PCH_LPC_DEV, LPC_GEN3_DEC, config->gen3_dec); + pci_write_config32(PCH_LPC_DEV, LPC_GEN4_DEC, config->gen4_dec); +} + + +void bootblock_early_southbridge_init(void) { enable_spi_prefetch(); + + /* Enable RCBA */ + pci_devfn_t lpc_dev = PCI_DEV(0, 0x1f, 0); + pci_write_config32(lpc_dev, RCBA, (uintptr_t)DEFAULT_RCBA | 1); + enable_port80_on_lpc(); set_spi_speed(); /* Enable upper 128bytes of CMOS */ RCBA32(RC) = (1 << 2); + + early_lpc_init(); } -- cgit v1.2.3