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authorAngel Pons <th3fanbus@gmail.com>2020-10-23 21:37:21 +0200
committerAngel Pons <th3fanbus@gmail.com>2020-10-30 00:45:51 +0000
commitc200e8c7cdebed98860a771888efbf998c5912b3 (patch)
tree2a3d0151583646b33a5ba6e518c23e403433be85 /src/soc/intel/broadwell/bootblock
parent3cc2c38d50741fffb9193851a4a3b7c636f7cd4d (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.c115
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();
-}