diff options
| author | Elyes HAOUAS <ehaouas@noos.fr> | 2016-06-19 12:38:47 +0200 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-06-24 18:15:09 +0200 |
| commit | aa8e7e777662e512daca0e82df243c2dcdbba4db (patch) | |
| tree | 1221a3a993efc2831902529fdda42719d6a1a530 /src/include | |
| parent | c8d24dd150a1922657d6ff396da8f11da24569f7 (diff) | |
SPD: fix DDR3 SDRAM memory module types
Correct the definitions for 16b and 32b SO-DIMM modules.
Regarding JEDEC Standard No. 21-C
Annex K: Serial Presence Detect for DDR3 SDRAM Modules (2014),
the hex values used for 16b-SO-DIMM is 0x0c
and for 32b-SO-DIMM module type is 0x0d
Change-Id: I9210ac3409a4aaf55a0f6411d5960cfdca05068d
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/15262
Tested-by: build bot (Jenkins)
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/device/dram/ddr3.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/include/device/dram/ddr3.h b/src/include/device/dram/ddr3.h index eae7840fd2..7388012f86 100644 --- a/src/include/device/dram/ddr3.h +++ b/src/include/device/dram/ddr3.h @@ -14,6 +14,12 @@ * GNU General Public License for more details. */ +/* + * JEDEC Standard No. 21-C + * Annex K: Serial Presence Detect (SPD) for DDR3 SDRAM Modules 2014 + * http://www.jedec.org/sites/default/files/docs/4_01_02_11R24.pdf + */ + #ifndef DEVICE_DRAM_DDR3L_H #define DEVICE_DRAM_DDR3L_H @@ -82,8 +88,8 @@ enum spd_dimm_type { SPD_DIMM_TYPE_72B_SO_RDIMM = 0x09, SPD_DIMM_TYPE_72B_SO_CDIMM = 0x0a, SPD_DIMM_TYPE_LRDIMM = 0x0b, - SPD_DIMM_TYPE_16B_SO_DIMM = 0x0d, - SPD_DIMM_TYPE_32B_SO_DIMM = 0x0e, + SPD_DIMM_TYPE_16B_SO_DIMM = 0x0c, + SPD_DIMM_TYPE_32B_SO_DIMM = 0x0d, /* Masks to bits 3:0 to give the dimm type */ SPD_DIMM_TYPE_MASK = 0x0f, }; |