cpu/via/car: ensure CAR ends up zeroed out
We need to ensure the cache as ram area is set to all zeroes so that
car_migrated works.
Despite a comment claims the previous value is a test pattern it's
actually not used for any testing. Drop the comment too.
Change-Id: I1c91acbca8a860c2ed9c691d08d18718604682d8
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reviewed-on: https://review.coreboot.org/25796
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
diff --git a/src/cpu/via/car/cache_as_ram.inc b/src/cpu/via/car/cache_as_ram.inc
index 2c19453..a131517 100644
--- a/src/cpu/via/car/cache_as_ram.inc
+++ b/src/cpu/via/car/cache_as_ram.inc
@@ -149,12 +149,8 @@
movl %esi, %edi
movl $(CacheSize >> 2), %ecx
- /*
- * 0x5c5c5c5c is a memory test pattern.
- * TODO: Check if everything works with the zero pattern as well.
- */
- /* xorl %eax, %eax */
- xorl $0x5c5c5c5c, %eax
+ /* Zero out the cache-as-ram area. */
+ xorl %eax, %eax
rep stosl
#ifdef CARTEST