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-rw-r--r--src/northbridge/intel/sandybridge/pei_data.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/northbridge/intel/sandybridge/pei_data.h b/src/northbridge/intel/sandybridge/pei_data.h
index d317515cf0..5e0ff0f56b 100644
--- a/src/northbridge/intel/sandybridge/pei_data.h
+++ b/src/northbridge/intel/sandybridge/pei_data.h
@@ -121,6 +121,14 @@ struct pei_data
* 2 2N
*/
int nmode;
+ /* DDR refresh rate config. JEDEC Standard No.21-C Annex K allows
+ * for DIMM SPD data to specify whether double-rate is required for
+ * extended operating temperature range.
+ * 0 Enable double rate based upon temperature thresholds
+ * 1 Normal rate
+ * 2 Always enable double rate
+ */
+ int ddr_refresh_rate_config;
} __attribute__((packed));
#endif