diff options
| -rw-r--r-- | src/soc/intel/quark/memmap.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/src/soc/intel/quark/memmap.c b/src/soc/intel/quark/memmap.c index 71e478433e..351fab7f1c 100644 --- a/src/soc/intel/quark/memmap.c +++ b/src/soc/intel/quark/memmap.c @@ -15,6 +15,8 @@ #include <cbmem.h> #include <fsp/memmap.h> +#include <soc/QuarkNcSocId.h> +#include <soc/reg_access.h> size_t mmap_region_granularity(void) { @@ -24,6 +26,16 @@ size_t mmap_region_granularity(void) void *cbmem_top(void) { - /* TODO: Get this dynamically*/ - return (void *)0x0afd0000; + UINT32 top_of_memory; + + /* Determine the TSEG base */ + top_of_memory = reg_host_bridge_unit_read(QNC_MSG_FSBIC_REG_HSMMC); + top_of_memory &= SMM_START_MASK; + top_of_memory <<= 16; + + /* Reserve 64 KiB for RMU firmware */ + top_of_memory -= 0x10000; + + /* Return the top of memory */ + return (void *)top_of_memory; } |