Hi,
bit 0 of pm reg#74 have to be set turn on system after power resumes.
See '42661_sb600_rrg_nda_3.02.pdf' for detail.
Signed-off-by: Josef Kellermann <se...@arcor.de> <mailto://se...@arcor.de>
diff --git a/src/southbridge/amd/sb600/sm.c b/src/southbridge/amd/sb600/sm.c
index 1a0d6ac..66c22e7 100644
--- a/src/southbridge/amd/sb600/sm.c
+++ b/src/southbridge/amd/sb600/sm.c
@@ -89,14 +89,16 @@ static void sm_init(device_t dev)
pm_iowrite(0x53, byte);
/* power after power fail */
- on = CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL;
- get_option(&on, "power_on_after_fail");
+
+ if( get_option(&on, "power_on_after_fail") < 0) {
+ on = CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL;
+ }
byte = pm_ioread(0x74);
byte &= ~0x03;
if (on) {
- byte |= 2;
+ byte |= (1 << 0);
}
- byte |= 1 << 2;
+ byte |= (1 << 2);
pm_iowrite(0x74, byte);
printk(BIOS_INFO, "set power %s after power fail\n", on ? "on" : "off");
--
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