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google/kahlee: Move DRAM clear override to devicetree 

Kahlee needs to keep its DRAM contents after a reset. Move this
override out of the OemCustomize.c file to a devicetree register
setting.

Change-Id: I3196cb8b94bec64e8ce59e4285cf8d97f442bd3d
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/21858
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Marshall Dawson 2017-09-25 11:55:28 -06:00 committed by Aaron Durbin
parent 67c2a7b487
commit 4af2342673
2 changed files with 1 additions and 2 deletions
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2
src/mainboard/google/kahlee/OemCustomize.c
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@ -35,6 +35,4 @@ void OemPostParams(AMD_POST_PARAMS *PostParams)
{ {
PostParams->MemConfig.PlatformMemoryConfiguration = PostParams->MemConfig.PlatformMemoryConfiguration =
(PSO_ENTRY *)DDR4PlatformMemoryConfiguration; (PSO_ENTRY *)DDR4PlatformMemoryConfiguration;
/* disable memory clear for pstore memory storage and boot time */
PostParams->MemConfig.EnableMemClr = FALSE;
} }

1
src/mainboard/google/kahlee/variants/kahlee/devicetree.cb
View File

@ -18,6 +18,7 @@ chip soc/amd/stoneyridge
{ {
{ {0xA0, 0x00} }, // socket 0 - Channel 0, slot 0 { {0xA0, 0x00} }, // socket 0 - Channel 0, slot 0
}" }"
register "dram_clear_on_reset" = "DRAM_CONTENTS_KEEP"
device cpu_cluster 0 on device cpu_cluster 0 on
device lapic 10 on end device lapic 10 on end