src/mainboard/intel/saddlebrook/spd/spd_util.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <stdint.h>
   4 #include <string.h>
   5 #include "spd.h"
   6
   7 void mainboard_fill_dq_map_data(void *dq_map_ch0, void *dq_map_ch1)
   8 {
   9         /* DQ byte map */
  10         const u8 dq_map[2][12] = {
  11                   { 0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0,
  12                     0x0F, 0x00, 0xFF, 0x00, 0xFF, 0x00 },
  13                   { 0x33, 0xCC, 0x00, 0xCC, 0x33, 0xCC,
  14                     0x33, 0x00, 0xFF, 0x00, 0xFF, 0x00 } };
  15         memcpy(dq_map_ch0, dq_map[0], sizeof(dq_map[0]));
  16         memcpy(dq_map_ch1, dq_map[1], sizeof(dq_map[1]));
  17 }
  18
  19 void mainboard_fill_dqs_map_data(void *dqs_map_ch0, void *dqs_map_ch1)
  20 {
  21         /* DQS CPU<>DRAM map */
  22         const u8 dqs_map[2][8] = {
  23                 { 0, 1, 3, 2, 4, 5, 6, 7 },
  24                 { 1, 0, 4, 5, 2, 3, 6, 7 } };
  25         memcpy(dqs_map_ch0, dqs_map[0], sizeof(dqs_map[0]));
  26         memcpy(dqs_map_ch1, dqs_map[1], sizeof(dqs_map[1]));
  27 }
  28
  29 void mainboard_fill_rcomp_res_data(void *rcomp_ptr)
  30 {
  31         /* Rcomp resistor */
  32         const u16 RcompResistor[3] = { 121, 81, 100 };
  33         memcpy(rcomp_ptr, RcompResistor, sizeof(RcompResistor));
  34 }
  35
  36 void mainboard_fill_rcomp_strength_data(void *rcomp_strength_ptr)
  37 {
  38         /* Rcomp target */
  39         static const u16 RcompTarget[5] = { 100, 40, 20, 20, 26 };
  40         memcpy(rcomp_strength_ptr, RcompTarget, sizeof(RcompTarget));
  41 }