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-rw-r--r--src/cpu/amd/car/post_cache_as_ram.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/src/cpu/amd/car/post_cache_as_ram.c b/src/cpu/amd/car/post_cache_as_ram.c
index 2c11777449..fb09cd41dd 100644
--- a/src/cpu/amd/car/post_cache_as_ram.c
+++ b/src/cpu/amd/car/post_cache_as_ram.c
@@ -79,18 +79,18 @@ static void prepare_ramstage_region(void *resume_backup_memory)
print_car_debug(" Done\n");
}
-/* Disable Erratum 343 Workaround, see RevGuide for Fam10h, Pub#41322 Rev 3.33 */
+/* Disable Erratum 343 Workaround, see RevGuide for Fam10h, Pub#41322 Rev 3.33
+ * and RevGuide for Fam12h, Pub#44739 Rev 3.10
+ */
static void vErrata343(void)
{
-#ifdef BU_CFG2_MSR
msr_t msr;
unsigned int uiMask = 0xFFFFFFF7;
msr = rdmsr(BU_CFG2_MSR);
msr.hi &= uiMask; // IcDisSpecTlbWr (bit 35) = 0
wrmsr(BU_CFG2_MSR, msr);
-#endif
}
void post_cache_as_ram(void)
@@ -121,8 +121,8 @@ void post_cache_as_ram(void)
prepare_romstage_ramstack(resume_backup_memory);
/* from here don't store more data in CAR */
- if (family < 0x6f) {
- /* Family 10h or earlier */
+ if (family >= 0x1f && family <= 0x3f) {
+ /* Family 10h and 12h, 11h until shown otherwise */
vErrata343();
}