diff options
Diffstat (limited to 'src/mainboard/google/rambi/romstage.c')
| -rw-r--r-- | src/mainboard/google/rambi/romstage.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/src/mainboard/google/rambi/romstage.c b/src/mainboard/google/rambi/romstage.c index 369ebad445..efe1343950 100644 --- a/src/mainboard/google/rambi/romstage.c +++ b/src/mainboard/google/rambi/romstage.c @@ -31,7 +31,12 @@ * 0b001 - 4GiB total - 2 x 2GiB Hynix H5TC4G63AFR-PBA 1600MHz * 0b010 - 2GiB total - 2 x 1GiB Micron MT41K128M16JT-125:K 1600MHz * 0b011 - 2GiB total - 2 x 1GiB Hynix H5TC2G63FFR-PBA 1600MHz + * 0b100 - 2GiB total - 1 x 2GiB Micron MT41K256M16HA-125:E 1600MHz + * 0b101 - 2GiB total - 1 x 2GiB Hynix H5TC4G63AFR-PBA 1600MHz */ +static const uint32_t dual_channel_config = + (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3); + #define SPD_SIZE 256 #define GPIO_SSUS_37_PAD 57 #define GPIO_SSUS_38_PAD 50 @@ -43,7 +48,7 @@ static inline void disable_internal_pull(int pad) write32(ssus_pconf0(pad), read32(ssus_pconf0(pad)) & pull_mask); } -static void *get_spd_pointer(char *spd_file_content, int total_spds) +static void *get_spd_pointer(char *spd_file_content, int total_spds, int *dual) { int ram_id = 0; @@ -63,6 +68,10 @@ static void *get_spd_pointer(char *spd_file_content, int total_spds) if (ram_id >= total_spds) return NULL; + /* Single channel configs */ + if (dual_channel_config & (1 << ram_id)) + *dual = 1; + return &spd_file_content[SPD_SIZE * ram_id]; } @@ -70,6 +79,7 @@ void mainboard_romstage_entry(struct romstage_params *rp) { struct cbfs_file *spd_file; void *spd_content; + int dual_channel = 0; struct mrc_params mp = { .mainboard = { @@ -84,9 +94,11 @@ void mainboard_romstage_entry(struct romstage_params *rp) /* Both channels are always present. */ spd_content = get_spd_pointer(CBFS_SUBHEADER(spd_file), - ntohl(spd_file->len) / SPD_SIZE); + ntohl(spd_file->len) / SPD_SIZE, + &dual_channel); mp.mainboard.dram_data[0] = spd_content; - mp.mainboard.dram_data[1] = spd_content; + if (dual_channel) + mp.mainboard.dram_data[1] = spd_content; rp->mrc_params = ∓ romstage_common(rp); |