diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/amd/agesa_wrapper/family14/model_14_init.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/src/cpu/amd/agesa_wrapper/family14/model_14_init.c b/src/cpu/amd/agesa_wrapper/family14/model_14_init.c index 01bd2639f0..d4d9667908 100644 --- a/src/cpu/amd/agesa_wrapper/family14/model_14_init.c +++ b/src/cpu/amd/agesa_wrapper/family14/model_14_init.c @@ -62,6 +62,7 @@ static void model_14_init(device_t dev) u8 i; msr_t msr; + int msrno; struct node_core_id id; #if CONFIG_LOGICAL_CPUS == 1 u32 siblings; @@ -70,12 +71,24 @@ static void model_14_init(device_t dev) // id = get_node_core_id(read_nb_cfg_54()); /* nb_cfg_54 can not be set */ // printk(BIOS_DEBUG, "nodeid = %02d, coreid = %02d\n", id.nodeid, id.coreid); - /* Turn on caching if we haven't already */ - x86_enable_cache(); - amd_setup_mtrrs(); - x86_mtrr_check(); - - disable_cache(); + disable_cache (); + /* Enable access to AMD RdDram and WrDram extension bits */ + msr = rdmsr(SYSCFG_MSR); + msr.lo |= SYSCFG_MSR_MtrrFixDramModEn; + wrmsr(SYSCFG_MSR, msr); + + // BSP: make a0000-bffff UC, c0000-fffff WB, same as OntarioApMtrrSettingsList for APs + msr.lo = msr.hi = 0; + wrmsr (0x259, msr); + msr.lo = msr.hi = 0x1e1e1e1e; + for (msrno = 0x268; msrno <= 0x26f; msrno++) + wrmsr (msrno, msr); + + /* disable access to AMD RdDram and WrDram extension bits */ + msr = rdmsr(SYSCFG_MSR); + msr.lo &= ~SYSCFG_MSR_MtrrFixDramModEn; + wrmsr(SYSCFG_MSR, msr); + enable_cache (); /* zero the machine check error status registers */ msr.lo = 0; @@ -84,8 +97,6 @@ static void model_14_init(device_t dev) wrmsr(MCI_STATUS + (i * 4), msr); } - enable_cache(); - /* Enable the local cpu apics */ setup_lapic(); |