diff options
Diffstat (limited to 'src/southbridge/via/k8t890/k8x8xx.h')
| -rw-r--r-- | src/southbridge/via/k8t890/k8x8xx.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/southbridge/via/k8t890/k8x8xx.h b/src/southbridge/via/k8t890/k8x8xx.h index a0fb57ab3c16..425aaeb5e85c 100644 --- a/src/southbridge/via/k8t890/k8x8xx.h +++ b/src/southbridge/via/k8t890/k8x8xx.h @@ -21,6 +21,31 @@ #ifndef SOUTHBRIDGE_VIA_K8T890_K8X8XX_H #define SOUTHBRIDGE_VIA_K8T890_K8X8XX_H +#include <cpu/x86/msr.h> +#include <cpu/amd/mtrr.h> #include "k8t890.h" +struct k8x8xx_vt8237_mirrored_regs { + u16 low_top_address; + u8 rom_shadow_ctrl_pg_c, + rom_shadow_ctrl_pg_d, + rom_shadow_ctrl_pg_e_memhole_smi_decoding, + rom_shadow_ctrl_pg_f_memhole, + smm_apic_decoding, + shadow_mem_ctrl; +}; + +static inline void k8x8xx_vt8237_mirrored_regs_fill(struct k8x8xx_vt8237_mirrored_regs *regs){ + msr_t msr; + + regs->rom_shadow_ctrl_pg_c = 0xff; + regs->rom_shadow_ctrl_pg_d = 0xff; + regs->rom_shadow_ctrl_pg_e_memhole_smi_decoding = 0xff; + regs->rom_shadow_ctrl_pg_f_memhole = 0x30; + regs->smm_apic_decoding = 0x19; + msr = rdmsr(TOP_MEM); + regs->shadow_mem_ctrl = msr.lo >> 24; + regs->low_top_address = msr.lo >> 16; +} + #endif /* SOUTHBRIDGE_VIA_K8T890_K8X8XX_H */ |