diff options
Diffstat (limited to 'src/soc/amd')
| -rw-r--r-- | src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl b/src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl index b8956b4984..e875f43f40 100644 --- a/src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl +++ b/src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl @@ -639,3 +639,28 @@ Method(FWAK,0, Serialized) /* FCH _WAK */ } } } + +/* + * Helper for setting a bit in AOACxA0 PwrGood Control + * Arg0: bit to set or clear + * Arg1: 0 = clear bit[Arg0], non-zero = set bit[Arg0] + */ +Method(PWGC,2, Serialized) +{ + And (PGA3, 0xdf, Local0) /* do SwUsb3SlpShutdown below */ + if(Arg1) { + Or(Arg0, Local0, Local0) + } else { + Not(Arg0, Local1) + And(Local1, Local0, Local0) + } + Store(Local0, PGA3) + if(LEqual(Arg0, 0x20)) { /* if SwUsb3SlpShutdown */ + Store(PGA3, Local0) + And(Arg0, Local0, Local0) + while(LNot(Local0)) { /* wait SwUsb3SlpShutdown to complete */ + Store(PGA3, Local0) + And(Arg0, Local0, Local0) + } + } +} |