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authorKyösti Mälkki <kyosti.malkki@gmail.com>2016-07-20 03:23:06 +0300
committerKyösti Mälkki <kyosti.malkki@gmail.com>2016-07-21 15:35:49 +0200
commita877b74a79028cef9a6a50a40c6d895de5c88fbd (patch)
tree35c09b716138277837a9b8e1d459eb373ce90eab /src/cpu/amd
parent7899db23557cc5eacadf42b53eaad5ebc0fe0c0e (diff)
downloadcoreboot-a877b74a79028cef9a6a50a40c6d895de5c88fbd.tar.xz
AMD k8 fam10: Fix CAR GLOBALS late in romstage
Zero-filling memory below 1 MiB resets car_migrated variable so any CAR GLOBALs are not addressed correctly for the remaining time in romstage. Also there is no actual need to do this as ramstage loader handles BSS. This fixes regression with commit 70cd54310 that broke fam10 boards with romstage spinlocks enabled. Change-Id: I7418821997a980ae5b818bd57e8a1b6507a543af Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/15754 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Diffstat (limited to 'src/cpu/amd')
-rw-r--r--src/cpu/amd/car/post_cache_as_ram.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/src/cpu/amd/car/post_cache_as_ram.c b/src/cpu/amd/car/post_cache_as_ram.c
index 9cf3c6e78f..ad5a5c7dcf 100644
--- a/src/cpu/amd/car/post_cache_as_ram.c
+++ b/src/cpu/amd/car/post_cache_as_ram.c
@@ -89,9 +89,6 @@ static void prepare_ramstage_region(int s3resume)
if (resume_backup_memory)
memcpy_(resume_backup_memory, (void *) CONFIG_RAMBASE,
HIGH_MEMORY_SAVE - backup_top);
- memset_((void*) CONFIG_RAMBASE, 0, HIGH_MEMORY_SAVE - backup_top);
- } else {
- memset_((void*)0, 0, CONFIG_RAMTOP - backup_top);
}
print_car_debug(" Done\n");