diff options
author | Angel Pons <th3fanbus@gmail.com> | 2020-10-23 21:37:21 +0200 |
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committer | Angel Pons <th3fanbus@gmail.com> | 2020-10-30 00:45:51 +0000 |
commit | c200e8c7cdebed98860a771888efbf998c5912b3 (patch) | |
tree | 2a3d0151583646b33a5ba6e518c23e403433be85 /src/soc/intel/broadwell/bootblock | |
parent | 3cc2c38d50741fffb9193851a4a3b7c636f7cd4d (diff) |
soc/intel/broadwell: Move PCH code into pch subdir
Change-Id: Icb57eb89b4f225298e43ae27970dc1e27fb6e222
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46706
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/broadwell/bootblock')
-rw-r--r-- | src/soc/intel/broadwell/bootblock/pch.c | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/src/soc/intel/broadwell/bootblock/pch.c b/src/soc/intel/broadwell/bootblock/pch.c deleted file mode 100644 index 7f6d0d52d9..0000000000 --- a/src/soc/intel/broadwell/bootblock/pch.c +++ /dev/null @@ -1,115 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ - -#include <arch/bootblock.h> -#include <device/pci_ops.h> -#include <soc/iomap.h> -#include <soc/lpc.h> -#include <soc/pci_devs.h> -#include <soc/rcba.h> -#include <soc/spi.h> -#include <soc/pm.h> -#include <soc/romstage.h> -#include <southbridge/intel/common/early_spi.h> - -static void map_rcba(void) -{ - pci_write_config32(PCH_DEV_LPC, RCBA, RCBA_BASE_ADDRESS | 1); -} - -static void enable_port80_on_lpc(void) -{ - /* Enable port 80 POST on LPC. The chipset does this by default, - * but it doesn't appear to hurt anything. */ - u32 gcs = RCBA32(GCS); - gcs = gcs & ~0x4; - RCBA32(GCS) = gcs; -} - -static void set_spi_speed(void) -{ - u32 fdod; - u8 ssfc; - - /* Observe SPI Descriptor Component Section 0 */ - SPIBAR32(SPIBAR_FDOC) = 0x1000; - - /* Extract the Write/Erase SPI Frequency from descriptor */ - fdod = SPIBAR32(SPIBAR_FDOD); - fdod >>= 24; - fdod &= 7; - - /* Set Software Sequence frequency to match */ - ssfc = SPIBAR8(SPIBAR_SSFC + 2); - ssfc &= ~7; - ssfc |= fdod; - SPIBAR8(SPIBAR_SSFC + 2) = ssfc; -} - -static void pch_enable_bars(void) -{ - /* Set up southbridge BARs */ - pci_write_config32(PCH_DEV_LPC, RCBA, RCBA_BASE_ADDRESS | 1); - - pci_write_config32(PCH_DEV_LPC, PMBASE, ACPI_BASE_ADDRESS | 1); - - pci_write_config8(PCH_DEV_LPC, ACPI_CNTL, ACPI_EN); - - pci_write_config32(PCH_DEV_LPC, GPIO_BASE, GPIO_BASE_ADDRESS | 1); - - /* Enable GPIO functionality. */ - pci_write_config8(PCH_DEV_LPC, GPIO_CNTL, GPIO_EN); -} - -static void pch_early_lpc(void) -{ - pch_enable_bars(); - - /* Set COM1/COM2 decode range */ - pci_write_config16(PCH_DEV_LPC, LPC_IO_DEC, 0x0010); - - /* Enable SuperIO + MC + COM1 + PS/2 Keyboard/Mouse */ - u16 lpc_config = CNF1_LPC_EN | CNF2_LPC_EN | GAMEL_LPC_EN | - COMA_LPC_EN | KBC_LPC_EN | MC_LPC_EN; - pci_write_config16(PCH_DEV_LPC, LPC_EN, lpc_config); - - /* Enable IOAPIC */ - RCBA16(OIC) = 0x0100; - - /* Read back for posted write */ - (void)RCBA16(OIC); - - /* Set HPET address and enable it */ - RCBA32_AND_OR(HPTC, ~3, 1 << 7); - - /* - * Reading the register back guarantees that the write is - * done before we use the configured base address below. - */ - (void)RCBA32(HPTC); - - /* Enable HPET to start counter */ - setbits32((void *)HPET_BASE_ADDRESS + 0x10, 1 << 0); - - /* Disable reset */ - RCBA32_OR(GCS, 1 << 5); - - /* TCO timer halt */ - u16 reg16 = inb(ACPI_BASE_ADDRESS + TCO1_CNT); - reg16 |= TCO_TMR_HLT; - outb(reg16, ACPI_BASE_ADDRESS + TCO1_CNT); - - /* Enable upper 128 bytes of CMOS */ - RCBA32_OR(RC, 1 << 2); - - /* Disable unused device (always) */ - RCBA32_OR(FD, PCH_DISABLE_ALWAYS); -} - -void bootblock_early_southbridge_init(void) -{ - map_rcba(); - enable_spi_prefetching_and_caching(); - enable_port80_on_lpc(); - set_spi_speed(); - pch_early_lpc(); -} |