src/mainboard/google/brya/variants/banshee/memory.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #include <baseboard/variants.h>
   4 #include <soc/romstage.h>
   5
   6 static const struct mb_cfg ddr4_mem_config = {
   7         .type = MEM_TYPE_DDR4,
   8
   9         .rcomp = {
  10                 /* Baseboard uses only 100ohm Rcomp resistors */
  11                 .resistor = 100,
  12
  13                 /* Baseboard Rcomp target values */
  14                 .targets = {50, 20, 25, 25, 25},
  15         },
  16
  17         .LpDdrDqDqsReTraining = 1,
  18
  19         .ect = 1, /* Early Command Training */
  20
  21         .UserBd = BOARD_TYPE_MOBILE,
  22 };
  23
  24 const struct mb_cfg *variant_memory_params(void)
  25 {
  26         return &ddr4_mem_config;
  27 }
  28
  29 bool variant_is_half_populated(void)
  30 {
  31         return false;
  32 }
  33
  34 void variant_get_spd_info(struct mem_spd *spd_info)
  35 {
  36         spd_info->topo = MEM_TOPO_DIMM_MODULE;
  37         spd_info->smbus[0].addr_dimm[0] = 0x50;
  38         spd_info->smbus[1].addr_dimm[0] = 0x52;
  39 }