spd.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <mainboard/google/auron/variant.h>
#include <southbridge/intel/lynxpoint/lp_gpio.h>
 
/* Lulu board memory configuration GPIOs */
#define SPD_GPIO_BIT0           13
#define SPD_GPIO_BIT1           9
#define SPD_GPIO_BIT2           47
#define SPD_GPIO_BIT3           8
 
unsigned int variant_get_spd_index(void)
{
        const int gpio_vector[] = {
                SPD_GPIO_BIT0,
                SPD_GPIO_BIT1,
                SPD_GPIO_BIT2,
                SPD_GPIO_BIT3,
                -1,
        };
        return get_gpios(gpio_vector);
}
 
bool variant_is_dual_channel(const unsigned int spd_index)
{
        /* CH1 not used in 2GB configurations */
        return !((spd_index == 0b0000) || (spd_index == 0b0011) || (spd_index == 0b1010));
}