diff options
| -rw-r--r-- | arch/x86/lib/fsp/fsp_dram.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/arch/x86/lib/fsp/fsp_dram.c b/arch/x86/lib/fsp/fsp_dram.c index bc456bb4a9..987cb4f8f3 100644 --- a/arch/x86/lib/fsp/fsp_dram.c +++ b/arch/x86/lib/fsp/fsp_dram.c @@ -38,8 +38,36 @@ int fsp_scan_for_ram_size(void) int dram_init_banksize(void) { + const struct hob_header *hdr; + struct hob_res_desc *res_desc; + phys_addr_t low_end; + uint bank; + + low_end = 0; + for (bank = 1, hdr = gd->arch.hob_list; + bank < CONFIG_NR_DRAM_BANKS && !end_of_hob(hdr); + hdr = get_next_hob(hdr)) { + if (hdr->type != HOB_TYPE_RES_DESC) + continue; + res_desc = (struct hob_res_desc *)hdr; + if (res_desc->type != RES_SYS_MEM && + res_desc->type != RES_MEM_RESERVED) + continue; + if (res_desc->phys_start < (1ULL << 32)) { + low_end = max(low_end, + res_desc->phys_start + res_desc->len); + continue; + } + + gd->bd->bi_dram[bank].start = res_desc->phys_start; + gd->bd->bi_dram[bank].size = res_desc->len; + log_debug("ram %llx %llx\n", gd->bd->bi_dram[bank].start, + gd->bd->bi_dram[bank].size); + } + + /* Add the memory below 4GB */ gd->bd->bi_dram[0].start = 0; - gd->bd->bi_dram[0].size = gd->ram_size; + gd->bd->bi_dram[0].size = low_end; return 0; } |