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-rw-r--r--arch/x86/lib/fsp/fsp_dram.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/lib/fsp/fsp_dram.c b/arch/x86/lib/fsp/fsp_dram.c
index 987cb4f8f3..9ce0ddf0d3 100644
--- a/arch/x86/lib/fsp/fsp_dram.c
+++ b/arch/x86/lib/fsp/fsp_dram.c
@@ -9,6 +9,7 @@
#include <asm/fsp/fsp_support.h>
#include <asm/e820.h>
#include <asm/mrccache.h>
+#include <asm/mtrr.h>
#include <asm/post.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -61,6 +62,8 @@ int dram_init_banksize(void)
gd->bd->bi_dram[bank].start = res_desc->phys_start;
gd->bd->bi_dram[bank].size = res_desc->len;
+ mtrr_add_request(MTRR_TYPE_WRBACK, res_desc->phys_start,
+ res_desc->len);
log_debug("ram %llx %llx\n", gd->bd->bi_dram[bank].start,
gd->bd->bi_dram[bank].size);
}
@@ -69,6 +72,8 @@ int dram_init_banksize(void)
gd->bd->bi_dram[0].start = 0;
gd->bd->bi_dram[0].size = low_end;
+ mtrr_add_request(MTRR_TYPE_WRBACK, 0, low_end);
+
return 0;
}