src/mainboard/google/veyron/boardid.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <boardid.h>
   4 #include <console/console.h>
   5 #include <gpio.h>
   6
   7 uint32_t board_id(void)
   8 {
   9         static int id = -1;
  10         gpio_t pins[] = {[3] = GPIO(2, A, 7), [2] = GPIO(2, A, 2),
  11                 [1] = GPIO(2, A, 1), [0] = GPIO(2, A, 0)}; /* GPIO2_A0 is LSB */
  12
  13         if (id < 0) {
  14                 id = gpio_base2_value(pins, ARRAY_SIZE(pins));
  15                 printk(BIOS_SPEW, "Board ID: %d.\n", id);
  16         }
  17
  18         return id;
  19 }
  20
  21 uint32_t ram_code(void)
  22 {
  23         uint32_t code;
  24         gpio_t pins[] = {[3] = GPIO(8, A, 3), [2] = GPIO(8, A, 2),
  25                 [1] = GPIO(8, A, 1), [0] = GPIO(8, A, 0)}; /* GPIO8_A0 is LSB */
  26
  27         if (CONFIG(VEYRON_FORCE_BINARY_RAM_CODE))
  28                 code = gpio_base2_value(pins, ARRAY_SIZE(pins));
  29         else
  30                 code = gpio_binary_first_base3_value(pins, ARRAY_SIZE(pins));
  31         printk(BIOS_SPEW, "RAM Config: %u.\n", code);
  32
  33         return code;
  34 }