diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2012-04-09 12:31:43 -0700 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2012-05-01 20:06:13 +0200 |
| commit | 95be1d6f469a552657bc6a63ccdb27a7654f810f (patch) | |
| tree | 2a41369a65a94e11c29395205582991ee1b5fbd8 /src/southbridge/intel | |
| parent | 7b508ddecb25d60945f088914f739ee5b3c2c175 (diff) | |
Don't disable ACPI in the S3 resume path
The OS does not re-execute the APMC 'enable ACPI' SMI
on resume so this has the potential to leave things
in an unknown state.
Change-Id: Iaf0fcb99f699e9e0ecacaab3f529026782a95151
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/971
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/southbridge/intel')
| -rw-r--r-- | src/southbridge/intel/bd82x6x/lpc.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/southbridge/intel/bd82x6x/lpc.c b/src/southbridge/intel/bd82x6x/lpc.c index 9a3dc99b6a..dddab6a2a2 100644 --- a/src/southbridge/intel/bd82x6x/lpc.c +++ b/src/southbridge/intel/bd82x6x/lpc.c @@ -396,15 +396,18 @@ static void pch_lock_smm(struct device *dev) u8 reg8; #endif + 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 - printk(BIOS_DEBUG, "done.\n"); + printk(BIOS_DEBUG, "Enabling ACPI via APMC:\n"); + outb(0xe1, 0xb2); // Enable ACPI mode + printk(BIOS_DEBUG, "done.\n"); #else - printk(BIOS_DEBUG, "Disabling ACPI via APMC:\n"); - outb(0x1e, 0xb2); // Disable ACPI mode - printk(BIOS_DEBUG, "done.\n"); + printk(BIOS_DEBUG, "Disabling ACPI via APMC:\n"); + outb(0x1e, 0xb2); // Disable ACPI mode + printk(BIOS_DEBUG, "done.\n"); #endif + } + /* Don't allow evil boot loaders, kernels, or * userspace applications to deceive us: */ |