src/mainboard/lenovo/x1_carbon_gen1/early_init.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <northbridge/intel/sandybridge/raminit.h>
   5 #include <southbridge/intel/bd82x6x/pch.h>
   6 #include <southbridge/intel/common/gpio.h>
   7
   8 const struct southbridge_usb_port mainboard_usb_ports[] = {
   9         /* enabled, current, OC pin */
  10         { 0, 3, 0 }, /* P00 disconnected */
  11         { 1, 1, 1 }, /* P01 left or right */
  12         { 0, 1, 3 }, /* P02 disconnected */
  13         { 1, 3, -1 },/* P03 WWAN */
  14         { 0, 1, 2 }, /* P04 disconnected */
  15         { 0, 1, -1 },/* P05 disconnected */
  16         { 0, 1, -1 },/* P06 disconnected */
  17         { 0, 2, -1 },/* P07 disconnected */
  18         { 0, 1, -1 },/* P08 disconnected */
  19         { 1, 2, 5 }, /* P09 left or right */
  20         { 1, 3, -1 },/* P10 FPR */
  21         { 1, 3, -1 },/* P11 Bluetooth */
  22         { 1, 1, -1 },/* P12 WLAN */
  23         { 1, 1, -1 },/* P13 Camera */
  24 };
  25
  26 static unsigned int get_spd_index(void)
  27 {
  28         const int spd_gpio_vector[] = {25, 45, -1};
  29         unsigned int spd_index = get_gpios(spd_gpio_vector);
  30
  31         /* 4gb model = 0, 8gb model = 1 */
  32         /* int extended_memory_version = get_gpio(44); */
  33
  34         /*
  35          * So far there is no need to parse gpio 44, as the 4GiB use
  36          * the hynix or elpida memory and 8 GiB versions use samsung.
  37          * All version use both channels.
  38          * But we might miss some versions.
  39          */
  40
  41         /*
  42          * GPIO45 GPIO25
  43          * 0      0       elpida
  44          * 0      1       hynix
  45          * 1      0       samsung
  46          * 1      1       reserved
  47          */
  48
  49         if (spd_index == 3)
  50                 die("Unsupported Memory. (detected 'reserved' memory configuration).");
  51
  52         return spd_index;
  53 }
  54
  55 void mb_get_spd_map(struct spd_info *spdi)
  56 {
  57         spdi->addresses[0] = SPD_MEMORY_DOWN;
  58         spdi->addresses[2] = SPD_MEMORY_DOWN;
  59         spdi->spd_index = get_spd_index();
  60 }