summaryrefslogtreecommitdiff
path: root/src/southbridge/intel/ibexpeak/lpc.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/southbridge/intel/ibexpeak/lpc.c')
-rw-r--r--src/southbridge/intel/ibexpeak/lpc.c51
1 files changed, 5 insertions, 46 deletions
diff --git a/src/southbridge/intel/ibexpeak/lpc.c b/src/southbridge/intel/ibexpeak/lpc.c
index 550ef30a30..f066b3505f 100644
--- a/src/southbridge/intel/ibexpeak/lpc.c
+++ b/src/southbridge/intel/ibexpeak/lpc.c
@@ -43,7 +43,6 @@
#define NMI_OFF 0
#define ENABLE_ACPI_MODE_IN_COREBOOT 0
-#define TEST_SMM_FLASH_LOCKDOWN 0
typedef struct southbridge_intel_ibexpeak_config config_t;
@@ -433,58 +432,20 @@ static void enable_clock_gating(device_t dev)
RCBA32_OR(0x3564, 0x3);
}
-#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 (!acpi_is_wakeup_s3()) {
+ if (!acpi_is_wakeup_s3() && CONFIG_HAVE_SMI_HANDLER) {
#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); // Enable ACPI mode
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); // Disable ACPI mode
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
static void pch_disable_smm_only_flashing(struct device *dev)
{
@@ -568,9 +529,7 @@ 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);
}