summaryrefslogtreecommitdiff
path: root/src/southbridge/sis
diff options
context:
space:
mode:
authorSiyuan Wang <wangsiyuanbuaa@gmail.com>2013-05-31 19:36:30 +0800
committerRonald G. Minnich <rminnich@gmail.com>2013-05-31 17:50:53 +0200
commit0390112407c042211428a2aee1ab77422caab338 (patch)
tree64da904e5dcf31d3ec321d2e304997930759a46a /src/southbridge/sis
parentd189229b45866105a8f4a8aac44a59774d030f81 (diff)
AMD Parmer: fix issue 'S3 fails to suspend after wake up from USB keyboard'
This issue can be reproduced in Linux by the following steps: 1) use pm-suspend to suspend. 2) use USB keyboard to wake up. 3) use pm-suspend to suspend. FAIL To SUSPEND. The cause of this issue is: USB devices use bit 11(0x0b) of GP0_STS represents S3 wake up event, but this bit is not clear after wake up. So OS thinks there is a wake up signal and wake up immediately. In this patch, I add AcpiGpe0Blk using MMIO access and write 1 on bit 11. I have tested on Parmer. Change-Id: Iec3078bf29de99683e7cd3ef4e178fbeb4dc09c1 Signed-off-by: Siyuan Wang <SiYuan.Wang@amd.com> Signed-off-by: Siyuan Wang <wangsiyuanbuaa@gmail.com> Reviewed-on: http://review.coreboot.org/3347 Tested-by: build bot (Jenkins) Reviewed-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-by: Marc Jones <marc.jones@se-eng.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/southbridge/sis')
0 files changed, 0 insertions, 0 deletions