/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include void mainboard_memory_init_params(FSPM_UPD *mupd) { FSP_M_CONFIG *mem_cfg = &mupd->FspmConfig; const FSPM_ARCH_UPD *arch_upd = &mupd->FspmArchUpd; /* Rcomp resistor */ const u16 rcomp_resistor[] = { 121, 81, 100 }; /* Rcomp target */ const u16 rcomp_target[] = { 100, 40, 20, 20, 26 }; /* SPD was saved in S0/S5 path, skips it when resumes from S3 */ if (arch_upd->BootMode == FSP_BOOT_ON_S3_RESUME) return; memcpy(&mem_cfg->RcompResistor, rcomp_resistor, sizeof(rcomp_resistor)); memcpy(&mem_cfg->RcompTarget, rcomp_target, sizeof(rcomp_target)); /* Read spd block to get memory config */ struct spd_block blk = { .addr_map = { 0x50, 0x52, }, }; mem_cfg->DqPinsInterleaved = 1; mem_cfg->CaVrefConfig = 2; get_spd_smbus(&blk); mem_cfg->MemorySpdDataLen = blk.len; mem_cfg->MemorySpdPtr00 = (uintptr_t)blk.spd_array[0]; mem_cfg->MemorySpdPtr10 = (uintptr_t)blk.spd_array[1]; dump_spd_info(&blk); }