diff options
Diffstat (limited to 'src/cpu/p6/earlymtrr.c')
| -rw-r--r-- | src/cpu/p6/earlymtrr.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/cpu/p6/earlymtrr.c b/src/cpu/p6/earlymtrr.c index f352f3d791..df74f905c8 100644 --- a/src/cpu/p6/earlymtrr.c +++ b/src/cpu/p6/earlymtrr.c @@ -51,7 +51,7 @@ static void early_mtrr_init(void) /* Disable Variable MTRRs */ msr.hi = 0x00000000; msr.lo = 0x00000000; - wrmsr(0x2ff, msr); + wrmsr(MTRRdefType_MSR, msr); /* Invalidate the cache again */ asm volatile ("invd"); @@ -65,19 +65,19 @@ static void early_mtrr_init(void) wrmsr(*msr_addr, msr); } - /* Enable caching for 0 - 128MB using variable mtrr */ + /* Enable caching for 0 - 1MB using variable mtrr */ msr = rdmsr(0x200); msr.hi &= 0xfffffff0; msr.hi |= 0x00000000; msr.lo &= 0x00000f00; - msr.lo |= 0x00000006; + msr.lo |= 0x00000000 | MTRR_TYPE_WRBACK; wrmsr(0x200, msr); msr = rdmsr(0x201); msr.hi &= 0xfffffff0; msr.hi |= 0x0000000f; msr.lo &= 0x000007ff; - msr.lo |= 0xf0000800; + msr.lo |= (~((CONFIG_LB_MEM_TOPK << 10) - 1)) | 0x800; wrmsr(0x201, msr); #if defined(XIP_ROM_SIZE) && defined(XIP_ROM_BASE) @@ -98,7 +98,7 @@ static void early_mtrr_init(void) /* Enable Variable MTRRs */ msr.hi = 0x00000000; msr.lo = 0x00000800; - wrmsr(0x2ff, msr); + wrmsr(MTRRdefType_MSR, msr); /* Enable the cache */ cr0 = read_cr0(); |