diff options
| author | Eric Lai <ericr_lai@compal.corp-partner.google.com> | 2020-03-06 21:18:30 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-03-07 20:55:06 +0000 |
| commit | d0ee87032a589d477eb70f45f60b26fbb6cf53a2 (patch) | |
| tree | 2547816c527619e079bc985de40c1322bd9e6cd9 /src | |
| parent | a317353f4283bf51f28482c69b0e52d1c4511be8 (diff) | |
lib/spd_bin: Extend LPDDR4 SPD information
Follow JEDEC 21-C to extend LPDDR4 SPD information.
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: I68c9782c543afab4423296fa7ac1c078db5649c3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39352
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/spd_bin.h | 3 | ||||
| -rw-r--r-- | src/lib/spd_bin.c | 8 |
2 files changed, 8 insertions, 3 deletions
diff --git a/src/include/spd_bin.h b/src/include/spd_bin.h index f144b1461c..c78f7c3267 100644 --- a/src/include/spd_bin.h +++ b/src/include/spd_bin.h @@ -28,6 +28,7 @@ #define SPD_DRAM_LPDDR3_INTEL 0xF1 #define SPD_DRAM_LPDDR3_JEDEC 0x0F #define SPD_DRAM_DDR4 0x0C +#define SPD_DRAM_LPDDR4 0x10 #define SPD_DENSITY_BANKS 4 #define SPD_ADDRESSING 5 #define DDR3_ORGANIZATION 7 @@ -40,8 +41,6 @@ #define LPDDR3_SPD_PART_LEN 18 #define DDR4_SPD_PART_OFF 329 #define DDR4_SPD_PART_LEN 20 -#define LPDDR4_SPD_PART_OFF 329 -#define LPDDR4_SPD_PART_LEN 20 struct spd_block { u8 addr_map[CONFIG_DIMM_MAX]; /* 7 bit I2C addresses */ diff --git a/src/lib/spd_bin.c b/src/lib/spd_bin.c index 25eb552748..4bf77d2baf 100644 --- a/src/lib/spd_bin.c +++ b/src/lib/spd_bin.c @@ -45,6 +45,8 @@ static const char *spd_get_module_type_string(int dram_type) return "LPDDR3"; case SPD_DRAM_DDR4: return "DDR4"; + case SPD_DRAM_LPDDR4: + return "LPDDR4"; } return "UNKNOWN"; } @@ -62,7 +64,9 @@ static int spd_get_banks(const uint8_t spd[], int dram_type) if (index >= ARRAY_SIZE(ddr3_banks)) return -1; return ddr3_banks[index]; + /* DDR4 and LPDDR4 has the same bank definition */ case SPD_DRAM_DDR4: + case SPD_DRAM_LPDDR4: if (index >= ARRAY_SIZE(ddr4_banks)) return -1; return ddr4_banks[index]; @@ -73,7 +77,8 @@ static int spd_get_banks(const uint8_t spd[], int dram_type) static int spd_get_capmb(const uint8_t spd[]) { - static const int spd_capmb[10] = { 1, 2, 4, 8, 16, 32, 64, 128, 48, 96 }; + static const int spd_capmb[13] = { 1, 2, 4, 8, 16, 32, 64, + 128, 48, 96, 12, 24, 72 }; int index = spd[SPD_DENSITY_BANKS] & 0xf; if (index >= ARRAY_SIZE(spd_capmb)) return -1; @@ -145,6 +150,7 @@ static void spd_get_name(const uint8_t spd[], char spd_name[], int dram_type) spd_name[LPDDR3_SPD_PART_LEN] = 0; break; case SPD_DRAM_DDR4: + case SPD_DRAM_LPDDR4: memcpy(spd_name, &spd[DDR4_SPD_PART_OFF], DDR4_SPD_PART_LEN); spd_name[DDR4_SPD_PART_LEN] = 0; break; |