diff options
| author | Richard Spiegel <richard.spiegel@silverbackltd.com> | 2017-11-09 16:04:35 -0700 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2017-11-10 18:22:53 +0000 |
| commit | 67c2a7b487bfaea90303faa5e8ef9e33c3000f1c (patch) | |
| tree | 7a3fbda67b43bbcc64a27c6ba2b94745a14f3cd4 /src/soc/amd/common/agesawrapper.c | |
| parent | 185988234d05e99188e3022056792b73313ea5a6 (diff) | |
soc/amd/common: Add DRAM clear option to northbridge.c
AmdInitPost() can be instructed to clear DRAM after a reset or to
preserve it. Use SetMemParams() to tell AGESA which action to take.
Note that any overrides from OemPostParams (OemCustomize.c) are not
affected by this change.
Change-Id: Ie18e7a265b6e0a00c0cc8912db6361087f772d2d
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/21856
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/amd/common/agesawrapper.c')
| -rw-r--r-- | src/soc/amd/common/agesawrapper.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/soc/amd/common/agesawrapper.c b/src/soc/amd/common/agesawrapper.c index 30c8514033..17f2e76464 100644 --- a/src/soc/amd/common/agesawrapper.c +++ b/src/soc/amd/common/agesawrapper.c @@ -1,7 +1,7 @@ /* * This file is part of the coreboot project. * - * Copyright (C) 2012 - 2014 Advanced Micro Devices, Inc. + * Copyright (C) 2012 - 2017 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 @@ -24,6 +24,7 @@ #include <BiosCallOuts.h> #include <string.h> +void __attribute__((weak)) SetMemParams(AMD_POST_PARAMS *PostParams) {} void __attribute__((weak)) OemPostParams(AMD_POST_PARAMS *PostParams) {} #define FILECODE UNASSIGNED_FILE_FILECODE @@ -118,14 +119,18 @@ AGESA_STATUS agesawrapper_amdinitpost(void) AmdCreateStruct (&AmdParamStruct); PostParams = (AMD_POST_PARAMS *)AmdParamStruct.NewStructPtr; - // Do not use IS_ENABLED here. CONFIG_GFXUMA should always have a value. Allow - // the compiler to flag the error if CONFIG_GFXUMA is not set. PostParams->MemConfig.UmaMode = CONFIG_GFXUMA ? UMA_AUTO : UMA_NONE; PostParams->MemConfig.UmaSize = 0; PostParams->MemConfig.BottomIo = (UINT16) (CONFIG_BOTTOMIO_POSITION >> 24); + SetMemParams(PostParams); OemPostParams(PostParams); + printk(BIOS_SPEW, "DRAM clear on reset: %s\n", + (PostParams->MemConfig.EnableMemClr == FALSE) ? "Keep" : + (PostParams->MemConfig.EnableMemClr == TRUE) ? "Clear" : + "unknown" + ); status = AmdInitPost (PostParams); |