diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/tigerlake/include/soc/meminit_jsl.h | 15 | ||||
| -rw-r--r-- | src/soc/intel/tigerlake/meminit_jsl.c | 21 |
2 files changed, 25 insertions, 11 deletions
diff --git a/src/soc/intel/tigerlake/include/soc/meminit_jsl.h b/src/soc/intel/tigerlake/include/soc/meminit_jsl.h index b828ae1cdf..421e31d8e4 100644 --- a/src/soc/intel/tigerlake/include/soc/meminit_jsl.h +++ b/src/soc/intel/tigerlake/include/soc/meminit_jsl.h @@ -27,6 +27,9 @@ /* Number of DQ byte mappings */ #define DDR_NUM_BYTE_MAPPINGS 6 +/* Number of memory DIMM slots available on Jasper Lake */ +#define NUM_DIMM_SLOT 4 + /* 64-bit Channel identification */ enum { DDR_CH0, @@ -40,17 +43,21 @@ struct spd_by_pointer { }; enum mem_info_read_type { - READ_SPD_CBFS, /* Find spd file in CBFS. */ - READ_SPD_MEMPTR /* Find spd data from pointer. */ + READ_SPD_CBFS, /* Find SPD file in CBFS. */ + READ_SMBUS, /* Read on-module SPD by SMBUS. */ + READ_SPD_MEMPTR /* Find SPD data from pointer. */ }; struct spd_info { enum mem_info_read_type read_type; union spd_data_by { - /* To identify spd file when read_type is READ_SPD_CBFS. */ + /* To read on-module SPD when read_type is READ_SMBUS. */ + uint8_t spd_smbus_address[NUM_DIMM_SLOT]; + + /* To identify SPD file when read_type is READ_SPD_CBFS. */ int spd_index; - /* To find spd data when read_type is READ_SPD_MEMPTR. */ + /* To find SPD data when read_type is READ_SPD_MEMPTR. */ struct spd_by_pointer spd_data_ptr_info; } spd_spec; }; diff --git a/src/soc/intel/tigerlake/meminit_jsl.c b/src/soc/intel/tigerlake/meminit_jsl.c index 3247357f1a..c68d2100fc 100644 --- a/src/soc/intel/tigerlake/meminit_jsl.c +++ b/src/soc/intel/tigerlake/meminit_jsl.c @@ -102,15 +102,22 @@ static void meminit_channels(FSP_M_CONFIG *mem_cfg, const struct mb_cfg *board_c void memcfg_init(FSP_M_CONFIG *mem_cfg, const struct mb_cfg *board_cfg, const struct spd_info *spd_info, bool half_populated) { - size_t spd_data_len; - uintptr_t spd_data_ptr; - memset(&mem_cfg->SpdAddressTable, 0, sizeof(mem_cfg->SpdAddressTable)); - get_spd_data(spd_info, &spd_data_ptr, &spd_data_len); - print_spd_info((unsigned char *)spd_data_ptr); + if (spd_info->read_type == READ_SMBUS) { + for (int i = 0; i < NUM_DIMM_SLOT; i++) + mem_cfg->SpdAddressTable[i] = spd_info->spd_spec.spd_smbus_address[i]; - mem_cfg->MemorySpdDataLen = spd_data_len; - meminit_channels(mem_cfg, board_cfg, spd_data_ptr, half_populated); + meminit_dq_dqs_map(mem_cfg, board_cfg, half_populated); + } else { + uintptr_t spd_data_ptr = 0; + size_t spd_data_len = 0; + memset(&mem_cfg->SpdAddressTable, 0, sizeof(mem_cfg->SpdAddressTable)); + get_spd_data(spd_info, &spd_data_ptr, &spd_data_len); + print_spd_info((unsigned char *)spd_data_ptr); + + mem_cfg->MemorySpdDataLen = spd_data_len; + meminit_channels(mem_cfg, board_cfg, spd_data_ptr, half_populated); + } /* Early Command Training Enabled */ mem_cfg->ECT = board_cfg->ect; |