diff options
Diffstat (limited to 'src/include/cpu/amd/vr.h')
| -rw-r--r-- | src/include/cpu/amd/vr.h | 52 |
1 files changed, 33 insertions, 19 deletions
diff --git a/src/include/cpu/amd/vr.h b/src/include/cpu/amd/vr.h index 0626545336..286eaa94c5 100644 --- a/src/include/cpu/amd/vr.h +++ b/src/include/cpu/amd/vr.h @@ -1,22 +1,11 @@ -/* <LIC_AMD_STD> - * Copyright (C) 2003-2005 Advanced Micro Devices, Inc. All Rights Reserved. - * </LIC_AMD_STD> */ -//<CTL_AMD_STD> -//$Id: //bios/main/vsa_ii/inc/vr.h#18 $ -//$Header: //bios/main/vsa_ii/inc/vr.h#18 $ -//$Date: 2005/09/29 $ -//$DateTime: 2005/09/29 11:07:14 $ -//$Change: 65425 $ -//$File: //bios/main/vsa_ii/inc/vr.h $ -//$Revision: #18 $ -//$Author: johnk $ -//</CTL_AMD_STD> -//<DOC_AMD_STD> -// Virtual Register USAGE: -// -// Index: AH = Class, AL = Parameter_ID -// Data: AX = data -//</DOC_AMD_STD> +/* +* +* Copyright (C) 2007 Advanced Micro Devices +* +*/ + +#ifndef CPU_AMD_VR_H +#define CPU_AMD_VR_H #define VRC_INDEX 0xAC1C // Index register #define VRC_DATA 0xAC1E // Data register @@ -484,3 +473,28 @@ #define MAX_THERMAL VRC_THERMAL_SMB_DATA #define MAX_VR_CLASS VRC_THERMAL + +/* + * Write to a Virtual Register + * AX = Class/Index + * CX = data to write + */ +static inline void vrWrite(uint16_t wClassIndex, uint16_t wData) +{ + outl(((uint32_t) VR_UNLOCK << 16) | wClassIndex, VRC_INDEX); + outw(wData, VRC_DATA); +} + + /* + * Read from a Virtual Register + * AX = Class/Index + * Returns a 16-bit word of data + */ +static inline uint16_t vrRead(uint16_t wClassIndex) +{ + uint16_t wData; + outl(((uint32_t) VR_UNLOCK << 16) | wClassIndex, VRC_INDEX); + wData = inw(VRC_DATA); + return wData; +} +#endif |