diff options
Diffstat (limited to 'src/soc/amd/stoneyridge')
| -rw-r--r-- | src/soc/amd/stoneyridge/acpi/AmdImc.asl | 64 | ||||
| -rw-r--r-- | src/soc/amd/stoneyridge/acpi/fch.asl | 4 |
2 files changed, 67 insertions, 1 deletions
diff --git a/src/soc/amd/stoneyridge/acpi/AmdImc.asl b/src/soc/amd/stoneyridge/acpi/AmdImc.asl new file mode 100644 index 0000000000..519b05cf37 --- /dev/null +++ b/src/soc/amd/stoneyridge/acpi/AmdImc.asl @@ -0,0 +1,64 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Advanced Micro Devices, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +//BTDC Due to IMC Fan, ACPI control codes +OperationRegion(IMIO, SystemIO, 0x3E, 0x02) +Field(IMIO , ByteAcc, NoLock, Preserve) { + IMCX,8, + IMCA,8 +} + +IndexField(IMCX, IMCA, ByteAcc, NoLock, Preserve) { + Offset(0x80), + MSTI, 8, + MITS, 8, + MRG0, 8, + MRG1, 8, + MRG2, 8, + MRG3, 8, +} + +Method(WACK, 0) +{ + Store(0, Local0) + While (LNotEqual(Local0, 0xFA)) { + Store(MRG0, Local0) + Sleep(10) + } +} + +//Init +Method (ITZE, 0) +{ + Store(0, MRG0) + Store(0xB5, MRG1) + Store(0, MRG2) + Store(0x96, MSTI) + WACK() + + Store(0, MRG0) + Store(0, MRG1) + Store(0, MRG2) + Store(0x80, MSTI) + WACK() + + Or(MRG2, 0x01, Local0) + + Store(0, MRG0) + Store(0, MRG1) + Store(Local0, MRG2) + Store(0x81, MSTI) + WACK() +} diff --git a/src/soc/amd/stoneyridge/acpi/fch.asl b/src/soc/amd/stoneyridge/acpi/fch.asl index 6a815b33ff..6dcafe6faf 100644 --- a/src/soc/amd/stoneyridge/acpi/fch.asl +++ b/src/soc/amd/stoneyridge/acpi/fch.asl @@ -155,11 +155,13 @@ Method(_INI, 0) { /* Determine the OS we're running on */ OSFL() -#if IS_ENABLED(CONFIG_ACPI_ENABLE_THERMAL_ZONE) +#if IS_ENABLED(CONFIG_STONEYRIDGE_IMC_FWM) /* TODO: It is unstable. */ #include "acpi/AmdImc.asl" +#if IS_ENABLED(CONFIG_ACPI_ENABLE_THERMAL_ZONE) ITZE() /* enable IMC Fan Control*/ #endif +#endif } /* End Method(_SB._INI) */ Method(OSFL, 0){ |