src/mainboard/google/auron/variants/lulu/spd/spd.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <mainboard/google/auron/variant.h>
   4 #include <southbridge/intel/lynxpoint/lp_gpio.h>
   5
   6 /* Lulu board memory configuration GPIOs */
   7 #define SPD_GPIO_BIT0           13
   8 #define SPD_GPIO_BIT1           9
   9 #define SPD_GPIO_BIT2           47
  10 #define SPD_GPIO_BIT3           8
  11
  12 unsigned int variant_get_spd_index(void)
  13 {
  14         const int gpio_vector[] = {
  15                 SPD_GPIO_BIT0,
  16                 SPD_GPIO_BIT1,
  17                 SPD_GPIO_BIT2,
  18                 SPD_GPIO_BIT3,
  19                 -1,
  20         };
  21         return get_gpios(gpio_vector);
  22 }
  23
  24 bool variant_is_dual_channel(const unsigned int spd_index)
  25 {
  26         /* CH1 not used in 2GB configurations */
  27         return !((spd_index == 0b0000) || (spd_index == 0b0011) || (spd_index == 0b1010));
  28 }