diff options
Diffstat (limited to 'src/northbridge/amd/amdk8')
| -rw-r--r-- | src/northbridge/amd/amdk8/coherent_ht.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/northbridge/amd/amdk8/coherent_ht.c b/src/northbridge/amd/amdk8/coherent_ht.c index 30e0471347..12c125c2ab 100644 --- a/src/northbridge/amd/amdk8/coherent_ht.c +++ b/src/northbridge/amd/amdk8/coherent_ht.c @@ -1662,10 +1662,10 @@ static int apply_cpu_errata_fixes(unsigned nodes) unsigned node; int needs_reset = 0; for(node = 0; node < nodes; node++) { -#if CONFIG_K8_REV_F_SUPPORT == 0 device_t dev; uint32_t cmd; dev = NODE_MC(node); +#if CONFIG_K8_REV_F_SUPPORT == 0 if (is_cpu_pre_c0()) { /* Errata 66 @@ -1708,6 +1708,20 @@ static int apply_cpu_errata_fixes(unsigned nodes) } } #endif + + +#if CONFIG_K8_REV_F_SUPPORT == 0 + /* I can't touch this msr on early buggy cpus, and cannot apply either 169 or 131 */ + if (!is_cpu_pre_b3()) +#endif + { + /* Errata 169 */ + /* We also need to set some bits in NB_CFG_MSR, which is handled in src/cpu/amd/model_fxx/ */ + cmd = pci_read_config32(dev, 0x68); + cmd &= ~(1 << 22); + cmd |= (1 << 21); + pci_write_config32(dev, 0x68, cmd); + } } return needs_reset; } |