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i82801gx: Use CMOS variable if available for power-on on power failure 

We used a hard coded value for some reason. Don't do that, but use CMOS
instead.

Change-Id: Ib83aa07a3e55bed075150354a060317ebc9d5ba7
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/443
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Patrick Georgi 2011-11-22 10:28:46 +01:00 committed by Stefan Reinauer
parent 5161509132
commit c07466b287
1 changed files with 8 additions and 4 deletions
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12
src/southbridge/intel/i82801gx/smihandler.c
View File

@ -279,12 +279,16 @@ static void southbridge_smi_sleep(unsigned int node, smm_state_save_area_t *stat
u8 reg8; u8 reg8;
u32 reg32; u32 reg32;
u8 slp_typ; u8 slp_typ;
/* FIXME: the power state on boot should be read from
* CMOS or even better from GNVS. Right now it's hard
* coded at compile time.
*/
u8 s5pwr = CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL; u8 s5pwr = CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL;
// save and recover RTC port values
u8 tmp70, tmp72;
tmp70 = inb(0x70);
tmp72 = inb(0x72);
get_option(&s5pwr, "power_on_after_fail");
outb(tmp70, 0x70);
outb(tmp72, 0x72);
/* First, disable further SMIs */ /* First, disable further SMIs */
reg8 = inb(pmbase + SMI_EN); reg8 = inb(pmbase + SMI_EN);
reg8 &= ~SLP_SMI_EN; reg8 &= ~SLP_SMI_EN;