diff options
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/fsp_baytrail/fsp/chipset_fsp_util.h | 2 | ||||
| -rw-r--r-- | src/soc/intel/fsp_baytrail/memmap.c | 15 | ||||
| -rw-r--r-- | src/soc/intel/fsp_baytrail/northcluster.c | 7 |
3 files changed, 8 insertions, 16 deletions
diff --git a/src/soc/intel/fsp_baytrail/fsp/chipset_fsp_util.h b/src/soc/intel/fsp_baytrail/fsp/chipset_fsp_util.h index 1f4fa743b4..29309bf0a5 100644 --- a/src/soc/intel/fsp_baytrail/fsp/chipset_fsp_util.h +++ b/src/soc/intel/fsp_baytrail/fsp/chipset_fsp_util.h @@ -32,8 +32,6 @@ #include <fspvpd.h> #include <azalia.h> -#define FSP_RESERVE_MEMORY_SIZE 0x200000 - #define FSP_INFO_HEADER_GUID \ { \ 0x912740BE, 0x2284, 0x4734, {0xB9, 0x71, 0x84, 0xB0, 0x27, 0x35, 0x3F, 0x0C} \ diff --git a/src/soc/intel/fsp_baytrail/memmap.c b/src/soc/intel/fsp_baytrail/memmap.c index 615916b96d..8a10ac80c7 100644 --- a/src/soc/intel/fsp_baytrail/memmap.c +++ b/src/soc/intel/fsp_baytrail/memmap.c @@ -29,18 +29,17 @@ uintptr_t smm_region_start(void) return (iosf_bunit_read(BUNIT_SMRRL) << 20); } -/* - * Calculate the top of usable (low) DRAM. - * The FSP's reserved memory sits just below the SMM region, - * allowing calculation of the top of usable memory. +/** @brief get the top of usable low memory from the FSP's HOB list + * + * The FSP's reserved memory sits just below the SMM region. The memory + * region below it is usable memory. * * The entire memory map is shown in northcluster.c + * + * @return pointer to the first byte of reserved memory */ void *cbmem_top(void) { - uintptr_t tom = smm_region_start(); - if (!tom) - tom = iosf_bunit_read(BUNIT_BMBOUND); - return (void *) tom - FSP_RESERVE_MEMORY_SIZE; + return find_fsp_reserved_mem(*(void **)CBMEM_FSP_HOB_PTR); } diff --git a/src/soc/intel/fsp_baytrail/northcluster.c b/src/soc/intel/fsp_baytrail/northcluster.c index 838e5547aa..b288388db2 100644 --- a/src/soc/intel/fsp_baytrail/northcluster.c +++ b/src/soc/intel/fsp_baytrail/northcluster.c @@ -149,8 +149,7 @@ static void mc_add_dram_resources(device_t dev) uint32_t fsp_mem_base = 0; GetHighMemorySize(&highmem_size); - GetLowMemorySize(&fsp_mem_base); - + fsp_mem_base=(uint32_t)cbmem_top(); bmbound = iosf_bunit_read(BUNIT_BMBOUND); bsmmrrl = iosf_bunit_read(BUNIT_SMRRL) << 20; @@ -162,10 +161,6 @@ static void mc_add_dram_resources(device_t dev) printk(BIOS_DEBUG, "FSP memory location: 0x%x\nFSP memory size: %dM\n", fsp_mem_base, (bsmmrrl - fsp_mem_base) >> 20); - - if ((bsmmrrl - fsp_mem_base ) != FSP_RESERVE_MEMORY_SIZE) - printk(BIOS_WARNING, "Warning: Fsp memory size does not match " - "expected memory size (%x).\n", FSP_RESERVE_MEMORY_SIZE); } printk(BIOS_INFO, "Available memory below 4GB: 0x%08x (%dM)\n", |