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Diffstat (limited to 'src/mainboard/amd/persimmon/romstage.c')
-rw-r--r--src/mainboard/amd/persimmon/romstage.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/amd/persimmon/romstage.c b/src/mainboard/amd/persimmon/romstage.c
index 749c51b649..1bcb0d1407 100644
--- a/src/mainboard/amd/persimmon/romstage.c
+++ b/src/mainboard/amd/persimmon/romstage.c
@@ -47,6 +47,11 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
u32 val;
u8 reg8;
+ // all cores: allow caching of flash chip code and data
+ // (there are no cache-as-ram reliability concerns with family 14h)
+ __writemsr (0x20c, (0x0100000000ull - CONFIG_ROM_SIZE) | 5);
+ __writemsr (0x20d, (0x1000000000ull - CONFIG_ROM_SIZE) | 0x800);
+
// all cores: set pstate 0 (1600 MHz) early to save a few ms of boot time
__writemsr (0xc0010062, 0);