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haswell: Use SMM Modules

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This commit adds support for using the SMM modules for haswell-based
boards. The SMI handling was also refactored to put the relocation
handler and permanent SMM handler loading in the cpu directory. All
tseg adjustment support is dropped by relying on the SMM module support
to perform the necessary relocations.

Change-Id: I8dd23610772fc4408567d9f4adf339596eac7b1f
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2728
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This commit is contained in:
Aaron Durbin
2012-12-21 21:21:48 -06:00
committed by Ronald G. Minnich
parent b7ecf6d830
commit 29ffa54969
8 changed files with 378 additions and 196 deletions
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52
src/southbridge/intel/lynxpoint/lpc.c
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@@ -29,13 +29,13 @@
#include <arch/ioapic.h>
#include <arch/acpi.h>
#include <cpu/cpu.h>
#include <cpu/x86/smm.h>
#include <elog.h>
#include "pch.h"
#define NMI_OFF 0
#define ENABLE_ACPI_MODE_IN_COREBOOT 0
#define TEST_SMM_FLASH_LOCKDOWN 0
typedef struct southbridge_intel_lynxpoint_config config_t;
@@ -428,58 +428,22 @@ static void enable_clock_gating(device_t dev)
#endif
}
#if CONFIG_HAVE_SMI_HANDLER
static void pch_lock_smm(struct device *dev)
static void pch_set_acpi_mode(void)
{
#if TEST_SMM_FLASH_LOCKDOWN
u8 reg8;
#endif
#if CONFIG_HAVE_SMI_HANDLER
if (acpi_slp_type != 3) {
#if ENABLE_ACPI_MODE_IN_COREBOOT
printk(BIOS_DEBUG, "Enabling ACPI via APMC:\n");
outb(0xe1, 0xb2); // Enable ACPI mode
outb(APM_CNT_ACPI_ENABLE, APM_CNT);
printk(BIOS_DEBUG, "done.\n");
#else
printk(BIOS_DEBUG, "Disabling ACPI via APMC:\n");
outb(0x1e, 0xb2); // Disable ACPI mode
outb(APM_CNT_ACPI_DISABLE, APM_CNT);
printk(BIOS_DEBUG, "done.\n");
#endif
}
/* Don't allow evil boot loaders, kernels, or
* userspace applications to deceive us:
*/
smm_lock();
#if TEST_SMM_FLASH_LOCKDOWN
/* Now try this: */
printk(BIOS_DEBUG, "Locking BIOS to RO... ");
reg8 = pci_read_config8(dev, 0xdc); /* BIOS_CNTL */
printk(BIOS_DEBUG, " BLE: %s; BWE: %s\n", (reg8&2)?"on":"off",
(reg8&1)?"rw":"ro");
reg8 &= ~(1 << 0); /* clear BIOSWE */
pci_write_config8(dev, 0xdc, reg8);
reg8 |= (1 << 1); /* set BLE */
pci_write_config8(dev, 0xdc, reg8);
printk(BIOS_DEBUG, "ok.\n");
reg8 = pci_read_config8(dev, 0xdc); /* BIOS_CNTL */
printk(BIOS_DEBUG, " BLE: %s; BWE: %s\n", (reg8&2)?"on":"off",
(reg8&1)?"rw":"ro");
printk(BIOS_DEBUG, "Writing:\n");
*(volatile u8 *)0xfff00000 = 0x00;
printk(BIOS_DEBUG, "Testing:\n");
reg8 |= (1 << 0); /* set BIOSWE */
pci_write_config8(dev, 0xdc, reg8);
reg8 = pci_read_config8(dev, 0xdc); /* BIOS_CNTL */
printk(BIOS_DEBUG, " BLE: %s; BWE: %s\n", (reg8&2)?"on":"off",
(reg8&1)?"rw":"ro");
printk(BIOS_DEBUG, "Done.\n");
#endif
#endif /* CONFIG_HAVE_SMI_HANDLER */
}
#endif
static void pch_disable_smm_only_flashing(struct device *dev)
{
@@ -567,9 +531,7 @@ static void lpc_init(struct device *dev)
pch_disable_smm_only_flashing(dev);
#if CONFIG_HAVE_SMI_HANDLER
pch_lock_smm(dev);
#endif
pch_set_acpi_mode();
pch_fixups(dev);
}