src/mainboard/lenovo/x1_carbon_gen1/early_init.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <stdint.h>
   4 #include <string.h>
   5 #include <console/console.h>
   6 #include <northbridge/intel/sandybridge/raminit_native.h>
   7 #include <southbridge/intel/bd82x6x/pch.h>
   8 #include <southbridge/intel/common/gpio.h>
   9 #include <cbfs.h>
  10
  11 const struct southbridge_usb_port mainboard_usb_ports[] = {
  12         /* enabled, current, OC pin */
  13         { 0, 3, 0 }, /* P00 disconnected */
  14         { 1, 1, 1 }, /* P01 left or right */
  15         { 0, 1, 3 }, /* P02 disconnected */
  16         { 1, 3, -1 },/* P03 WWAN */
  17         { 0, 1, 2 }, /* P04 disconnected */
  18         { 0, 1, -1 },/* P05 disconnected */
  19         { 0, 1, -1 },/* P06 disconnected */
  20         { 0, 2, -1 },/* P07 disconnected */
  21         { 0, 1, -1 },/* P08 disconnected */
  22         { 1, 2, 5 }, /* P09 left or right */
  23         { 1, 3, -1 },/* P10 FPR */
  24         { 1, 3, -1 },/* P11 Bluetooth */
  25         { 1, 1, -1 },/* P12 WLAN */
  26         { 1, 1, -1 },/* P13 Camera */
  27 };
  28
  29 static uint8_t *get_spd_data(int spd_index)
  30 {
  31         uint8_t *spd_file;
  32         size_t spd_file_len;
  33
  34         printk(BIOS_DEBUG, "spd index %d\n", spd_index);
  35         spd_file = cbfs_map("spd.bin", &spd_file_len);
  36         if (!spd_file)
  37                 die("SPD data not found.");
  38
  39         if (spd_file_len < spd_index * 256)
  40                 die("Missing SPD data.");
  41
  42         return spd_file + spd_index * 256;
  43 }
  44
  45 void mainboard_get_spd(spd_raw_data *spd, bool id_only)
  46 {
  47         uint8_t *memory;
  48         const int spd_gpio_vector[] = {25, 45, -1};
  49         int spd_index = get_gpios(spd_gpio_vector);
  50
  51         /* 4gb model = 0, 8gb model = 1 */
  52         /* int extended_memory_version = get_gpio(44); */
  53
  54         /*
  55          * So far there is no need to parse gpio 44, as the 4GiB use
  56          * the hynix or elpida memory and 8 GiB versions use samsung.
  57          * All version use both channels.
  58          * But we might miss some versions.
  59          */
  60
  61         /*
  62          * GPIO45 GPIO25
  63          * 0      0       elpida
  64          * 0      1       hynix
  65          * 1      0       samsung
  66          * 1      1       reserved
  67          */
  68
  69         if (spd_index == 3)
  70                 die("Unsupported Memory. (detected 'reserved' memory configuration).");
  71
  72         memory = get_spd_data(spd_index);
  73         memcpy(&spd[0], memory, 256);
  74         memcpy(&spd[2], memory, 256);
  75 }