From c8d24dd150a1922657d6ff396da8f11da24569f7 Mon Sep 17 00:00:00 2001 From: Elyes HAOUAS Date: Wed, 15 Jun 2016 21:13:07 +0200 Subject: SPD: fix and add DDR2 SDRAM memory module types Correct the definitions and add 72b-SO-CDIMM and 72b-SO-RDIMM Change-Id: I33532e30f45f6c8c0eb6d47b0bea87689d2d9a1a Signed-off-by: Elyes HAOUAS Reviewed-on: https://review.coreboot.org/15204 Tested-by: build bot (Jenkins) Reviewed-by: Marshall Dawson --- src/include/spd.h | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) (limited to 'src/include/spd.h') 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 -- cgit v1.2.3