src/mainboard/google/auron/variants/gandof/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 /* Gandof board memory configuration GPIOs */
   7 #define SPD_GPIO_BIT0           13
   8 #define SPD_GPIO_BIT1           9
   9 #define SPD_GPIO_BIT2           47
  10
  11 unsigned int variant_get_spd_index(void)
  12 {
  13         const int gpio_vector[] = {
  14                 SPD_GPIO_BIT0,
  15                 SPD_GPIO_BIT1,
  16                 SPD_GPIO_BIT2,
  17                 -1,
  18         };
  19         return get_gpios(gpio_vector);
  20 }
  21
  22 bool variant_is_dual_channel(const unsigned int spd_index)
  23 {
  24         /* Index 0-2 are 4GB config with both CH0 and CH1.
  25          * Index 4-6 are 2GB config with CH0 only. */
  26         return !(spd_index > 3);
  27 }