From e261807baceef199f31528f700fdd9a8a27d348e Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@stackframe.org>
Date: Sun, 5 Jun 2011 11:39:12 +0200
Subject: i82801gx: enable ACPI during S3 resume
disabling ACPI during S3 wakeup breaks ACPI wakeup, as the
Host OS is assuming that ACPI is enabled.
Change-Id: I8ced72c4b553d41a57f26d64998118e8a77621f8
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/7
Tested-by: build bot (Jenkins)
---
src/southbridge/intel/i82801gx/lpc.c | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'src')
diff --git a/src/southbridge/intel/i82801gx/lpc.c b/src/southbridge/intel/i82801gx/lpc.c
index 394f161f95..b4b2f41377 100644
--- a/src/southbridge/intel/i82801gx/lpc.c
+++ b/src/southbridge/intel/i82801gx/lpc.c
@@ -341,6 +341,7 @@ static void i82801gx_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(APM_CNT_ACPI_ENABLE, APM_CNT); // Enable ACPI mode
@@ -350,6 +351,10 @@ static void i82801gx_lock_smm(struct device *dev)
outb(APM_CNT_ACPI_DISABLE, APM_CNT); // Disable ACPI mode
printk(BIOS_DEBUG, "done.\n");
#endif
+ } else {
+ printk(BIOS_DEBUG, "S3 wakeup, enabling ACPI via APMC\n");
+ outb(APM_CNT_ACPI_ENABLE, APM_CNT);
+ }
/* Don't allow evil boot loaders, kernels, or
* userspace applications to deceive us:
*/
--
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