diff options
Diffstat (limited to 'src/northbridge/intel/sandybridge/raminit_mrc.c')
| -rw-r--r-- | src/northbridge/intel/sandybridge/raminit_mrc.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/src/northbridge/intel/sandybridge/raminit_mrc.c b/src/northbridge/intel/sandybridge/raminit_mrc.c index e88d356593..a8acfbf980 100644 --- a/src/northbridge/intel/sandybridge/raminit_mrc.c +++ b/src/northbridge/intel/sandybridge/raminit_mrc.c @@ -265,9 +265,31 @@ void sdram_initialize(struct pei_data *pei_data) report_memory_config(); } -/* These are the location and structure of MRC_VAR data in CAR. */ +/* These are the location and structure of MRC_VAR data in CAR. + The CAR region looks like this: + +------------------+ -> DCACHE_RAM_BASE + | | + | | + | COREBOOT STACK | + | | + | | + +------------------+ -> DCACHE_RAM_BASE + DCACHE_RAM_SIZE + | | + | MRC HEAP | + | size = 0x5000 | + | | + +------------------+ + | | + | MRC VAR | + | size = 0x4000 | + | | + +------------------+ -> DACHE_RAM_BASE + DACHE_RAM_SIZE + + DCACHE_RAM_MRC_VAR_SIZE + + */ #define DCACHE_RAM_MRC_VAR_BASE \ - (CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE) + (CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE + \ + CONFIG_DCACHE_RAM_MRC_VAR_SIZE - 0x4000) struct mrc_var_data { u32 acpi_timer_flag; |