src/mainboard/google/cyan/variants/edgar/spd_util.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <mainboard/google/cyan/spd/spd_util.h>
   5
   6 /*
   7  *   0b0000 - 4GiB total - 2 x 2GiB Samsung K4E8E304EE-EGCE
   8  *   0b0001 - 4GiB total - 2 x 2GiB Hynix H9CCNNN8JTBLAR-NUD
   9  *   0b0010 - 2GiB total - 1 x 2GiB Samsung K4E8E304EE-EGCE
  10  *   0b0011 - 2GiB total - 1 x 2GiB Hynix H9CCNNN8JTBLAR-NUD
  11  *   0b0100 - 8GiB total - 2 x 4GiB Samsung K4E8E324EB-EGCF (dual)
  12  *   0b0101 - 4GiB total - 2 x 2GiB Micron LPDDR3 MT52L256M32D1PF-107 (dual)
  13  *   0b0110 - 4GiB total - 1 x 4GiB Samsung K4E8E324EB-EGCF
  14  *   0b0111 - 2GiB total - 1 x 2GiB Micron LPDDR3 MT52L256M32D1PF-107
  15  *   0b1000 - 4GiB total - 2 x 2GiB NANYA NT6CL256T32CM-H1 (dual)
  16  *   0b1001 - 4GiB total - 2 x 2GiB Hynix H9CCNNN8GTALAR-NUD (dual)
  17  *   0b1010 - 2GiB total - 1 x 2GiB NANYA NT6CL256T32CM-H1
  18  *   0b1011 - 2GiB total - 1 x 2GiB Hynix H9CCNNN8GTALAR-NUD
  19  */
  20
  21 int get_variant_spd_index(int ram_id, int *dual)
  22 {
  23         /* Determine if single or dual channel memory system */
  24         /* RAMID1 is deterministic for edgar */
  25         *dual = ((ram_id >> 1) & 0x1) ? 0 : 1;
  26
  27         /* Display the RAM type */
  28         switch (ram_id) {
  29         case 0:
  30                 printk(BIOS_DEBUG, "4GiB Samsung K4E8E304EE-EGCE\n");
  31                 break;
  32         case 1:
  33                 printk(BIOS_DEBUG, "4GiB Hynix H9CCNNN8JTBLAR-NUD\n");
  34                 break;
  35         case 2:
  36                 printk(BIOS_DEBUG, "2GiB Samsung K4E8E304EE-EGCE\n");
  37                 break;
  38         case 3:
  39                 printk(BIOS_DEBUG, "2GiB Hynix H9CCNNN8JTBLAR-NUD\n");
  40                 break;
  41         case 4:
  42                 printk(BIOS_DEBUG, "4GiB Samsung K4E8E324EB-EGCF\n");
  43                 break;
  44         case 5:
  45                 printk(BIOS_DEBUG, "4GiB Micron LPDDR3 MT52L256M32D1PF-107\n");
  46                 break;
  47         case 6:
  48                 printk(BIOS_DEBUG, "2GiB Samsung K4E8E324EB-EGCF\n");
  49                 break;
  50         case 7:
  51                 printk(BIOS_DEBUG, "2GiB Micron LPDDR3 MT52L256M32D1PF-107\n");
  52                 break;
  53         case 8:
  54                 printk(BIOS_DEBUG, "4GiB NANYA NT6CL256T32CM-H1\n");
  55                 break;
  56         case 9:
  57                 printk(BIOS_DEBUG, "4GiB Hynix H9CCNNN8GTALAR-NUD\n");
  58                 break;
  59         case 10:
  60                 printk(BIOS_DEBUG, "2GiB NANYA NT6CL256T32CM-H1\n");
  61                 break;
  62         case 11:
  63                 printk(BIOS_DEBUG, "2GiB Hynix H9CCNNN8GTALAR-NUD\n");
  64                 break;
  65         }
  66
  67         /* 1:1 mapping between ram_id and spd_index for edgar */
  68         return ram_id;
  69 }