From 509e5fd4c0d2da06bd7f413e01db1c094156206f Mon Sep 17 00:00:00 2001 From: Marc Jones Date: Wed, 1 Aug 2018 12:45:03 -0600 Subject: soc/amd/stoneyridge: Call AMD ALIB method with AC/DC state AMD ALIB Function 1 accepts the AC/DC startup state. This is reported to be required for AMD PSPP settings. BUG=b:112020107 TEST= build test Change-Id: Ibb6c872d84745217912956c15d6ca2e8ba387561 Signed-off-by: Marc Jones Reviewed-on: https://review.coreboot.org/27785 Reviewed-by: Martin Roth Reviewed-by: Paul Menzel Tested-by: build bot (Jenkins) --- src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'src/soc/amd/stoneyridge') diff --git a/src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl b/src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl index 81964baa48..2855b23fab 100644 --- a/src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl +++ b/src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl @@ -14,6 +14,8 @@ * GNU General Public License for more details. */ +External(\_SB.ALIB, MethodObj) + /* System Bus */ /* _SB.PCI0 */ @@ -138,7 +140,7 @@ Method(_CRS, 0) { * 2. Get PCI Interrupt routing from ACPI VSM, this * value is based on user choice in BIOS setup. */ -Method(_INI, 0) { +Method(_INI, 0, Serialized) { /* DBGO("\\_SB\\_INI\n") */ /* DBGO(" DSDT.ASL code from ") */ /* DBGO(__DATE__) */ @@ -154,6 +156,17 @@ Method(_INI, 0) { /* Determine the OS we're running on */ OSFL() + + /* Send ALIB Function 1 the AC/DC state */ + Name(F1BF, Buffer(0x03){}) + CreateWordField(F1BF, 0, F1SZ) + CreateByteField(F1BF, 2, F1DA) + + Store(3, F1SZ) + Store(\PWRS, F1DA) + + \_SB.ALIB(1, F1BF) + } /* End Method(_SB._INI) */ Method(OSFL, 0){ -- cgit v1.2.3