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-rw-r--r--src/include/spd.h20
1 files changed, 12 insertions, 8 deletions
diff --git a/src/include/spd.h b/src/include/spd.h
index 7c4a2e3801..69a45ff06b 100644
--- a/src/include/spd.h
+++ b/src/include/spd.h
@@ -26,7 +26,8 @@
* Datasheet (alternative):
* - Name: SERIAL PRESENCE DETECT STANDARD, General Standard
* JEDEC Standard No. 21-C
- * - PDF: http://www.jedec.org/download/search/4_01_02_00R9.PDF
+ * Annex J: Serial Presence Detects for DDR2 SDRAM (Revision 1.3):
+ * - PDF: http://www.jedec.org/download/search/4_01_02_10R17.pdf
*/
#ifndef _SPD_H_
@@ -235,12 +236,15 @@ enum spd_memory_type {
#define RC62 62
#define RC63 63
-#define SPD_UNDEFINED 0
-#define SPD_RDIMM 1
-#define SPD_UDIMM 2
-#define SPD_SODIMM 3
-#define SPD_MICRO_DIMM 4
-#define SPD_MINI_RDIMM 5
-#define SPD_MINI_UDIMM 6
+/* Byte 20: DIMM type information */
+#define SPD_UNDEFINED 0x00
+#define SPD_RDIMM 0x01
+#define SPD_UDIMM 0x02
+#define SPD_SODIMM 0x04
+#define SPD_72B_SO_CDIMM 0x06
+#define SPD_72B_SO_RDIMM 0x07
+#define SPD_MICRO_DIMM 0x08
+#define SPD_MINI_RDIMM 0x10
+#define SPD_MINI_UDIMM 0x20
#endif