Comments
Patch
commit f641e32ce44f9621c98075d4a327aebfdec85e1f
Author: Sven Schnelle <svens@stackframe.org>
Date: Sun Jun 5 11:39:12 2011 +0200
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>
@@ -340,6 +340,7 @@ 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(0xe1, 0xb2); // Enable ACPI mode
@@ -349,6 +350,10 @@ static void i82801gx_lock_smm(struct device *dev)
outb(0x1e, 0xb2); // 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:
*/