diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/apollolake/romstage.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/romstage.c b/src/soc/intel/apollolake/romstage.c index ebd6287e4a..b9733defa3 100644 --- a/src/soc/intel/apollolake/romstage.c +++ b/src/soc/intel/apollolake/romstage.c @@ -130,6 +130,11 @@ asmlinkage void car_stage_entry(void) assert(ALIGN_DOWN(top_of_ram, 16*MiB) == top_of_ram); postcar_frame_add_mtrr(&pcf, top_of_ram - 16*MiB, 16*MiB, MTRR_TYPE_WRBACK); + /* Cache the memory-mapped boot media. */ + if (IS_ENABLED(CONFIG_BOOT_DEVICE_MEMORY_MAPPED)) + postcar_frame_add_mtrr(&pcf, -CONFIG_ROM_SIZE, CONFIG_ROM_SIZE, + MTRR_TYPE_WRPROT); + run_postcar_phase(&pcf); } |