diff options
Diffstat (limited to 'src/include/cpu/intel/romstage.h')
| -rw-r--r-- | src/include/cpu/intel/romstage.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/include/cpu/intel/romstage.h b/src/include/cpu/intel/romstage.h index d4435643e9..1f967ce452 100644 --- a/src/include/cpu/intel/romstage.h +++ b/src/include/cpu/intel/romstage.h @@ -4,6 +4,29 @@ #include <arch/cpu.h> void mainboard_romstage_entry(unsigned long bist); + +/* romstage_main is called from the cache-as-ram assembly file. The return + * value is the stack value to be used for romstage once cache-as-ram is + * torn down. The following values are pushed onto the stack to setup the + * MTRRs: + * +0: Number of MTRRs + * +4: MTRR base 0 31:0 + * +8: MTRR base 0 63:32 + * +12: MTRR mask 0 31:0 + * +16: MTRR mask 0 63:32 + * +20: MTRR base 1 31:0 + * +24: MTRR base 1 63:32 + * +28: MTRR mask 1 31:0 + * +32: MTRR mask 1 63:32 + * ... + */ +void *setup_stack_and_mtrrs(void); + +/* romstage_main is called from the cache-as-ram assembly file to prepare + * CAR stack guards.*/ void * asmlinkage romstage_main(unsigned long bist); +/* romstage_after_car() is the C function called after cache-as-ram has + * been torn down. It is responsible for loading the ramstage. */ +void asmlinkage romstage_after_car(void); #endif /* _CPU_INTEL_ROMSTAGE_H */ |