diff options
| -rw-r--r-- | src/southbridge/amd/cs5536/cs5536_early_setup.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/southbridge/amd/cs5536/cs5536_early_setup.c b/src/southbridge/amd/cs5536/cs5536_early_setup.c index ab9725865e..5163ca6a15 100644 --- a/src/southbridge/amd/cs5536/cs5536_early_setup.c +++ b/src/southbridge/amd/cs5536/cs5536_early_setup.c @@ -190,7 +190,12 @@ static int cs5536_setup_onchipuart(void) * MSR 0x51400021 bit [27:24] */ msr_t msr; - msr.lo = 2; + + /* Bit 1 = DEVEN (device enable) + * Bit 4 = EN_BANKS (allow access to the upper banks) + */ + + msr.lo = (1 << 4) | (1 << 1); msr.hi = 0; /* This enables COM2, but that should be done elsewhere wrmsr(0x5140003e, msr); |