src/mainboard/google/oak/boardid.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <boardid.h>
   4 #include <gpio.h>
   5 #include <console/console.h>
   6 #include "gpio.h"
   7
   8 static int board_id_value = -1;
   9
  10 static uint8_t get_board_id(void)
  11 {
  12         uint8_t bid = 0;
  13         static gpio_t pins[] = {[2] = BOARD_ID_2, [1] = BOARD_ID_1,
  14                 [0] = BOARD_ID_0};
  15
  16         bid = gpio_base2_value(pins, ARRAY_SIZE(pins));
  17
  18         printk(BIOS_INFO, "Board ID %d\n", bid);
  19
  20         return bid;
  21 }
  22
  23 uint32_t board_id(void)
  24 {
  25         if (board_id_value < 0)
  26                 board_id_value = get_board_id();
  27
  28         return board_id_value;
  29 }
  30
  31 uint32_t ram_code(void)
  32 {
  33         uint32_t code;
  34         static gpio_t pins[] = {[3] = RAM_ID_3, [2] = RAM_ID_2, [1] = RAM_ID_1,
  35                 [0] = RAM_ID_0};
  36
  37         code = gpio_base2_value(pins, ARRAY_SIZE(pins));
  38
  39         printk(BIOS_INFO, "RAM Config: %u\n", code);
  40
  41         return code;
  42 }