diff options
Diffstat (limited to 'src/soc/intel/tigerlake/meminit.c')
| -rw-r--r-- | src/soc/intel/tigerlake/meminit.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/soc/intel/tigerlake/meminit.c b/src/soc/intel/tigerlake/meminit.c index 86645472aa..d44554af7e 100644 --- a/src/soc/intel/tigerlake/meminit.c +++ b/src/soc/intel/tigerlake/meminit.c @@ -16,6 +16,14 @@ #define LPDDR4X_CHANNEL_UNPOPULATED(ch, half_populated) \ ((half_populated) && ((ch) >= (LPDDR4X_CHANNELS / 2))) +/* + * Translate DDR4 channel # to FSP UPD index # for the channel. + * Channel 0 -> Index 0 + * Channel 1 -> Index 4 + * Index 1-3 and 5-7 are unused. + */ +#define DDR4_FSP_UPD_CHANNEL_IDX(x) ((x) * 4) + enum dimm_enable_options { ENABLE_BOTH_DIMMS = 0, DISABLE_DIMM0 = 1, @@ -378,7 +386,7 @@ void meminit_ddr4(FSP_M_CONFIG *mem_cfg, const struct mb_ddr4_cfg *board_cfg, for (i = 0; i < DDR4_CHANNELS; i++) { ddr4_get_spd(i, &spd_md_data, &spd_sodimm_blk, info, half_populated, &spd_dimm0, &spd_dimm1); - init_spd_upds(mem_cfg, i, spd_dimm0, spd_dimm1); + init_spd_upds(mem_cfg, DDR4_FSP_UPD_CHANNEL_IDX(i), spd_dimm0, spd_dimm1); } /* |