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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <baseboard/gpio.h>
#include <baseboard/variants.h>
#include <gpio.h>
static const struct mb_cfg baseboard_memcfg = {
.type = MEM_TYPE_LP4X,
.rcomp = {
/* Baseboard uses only 100ohm Rcomp resistors */
.resistor = 100,
/* Baseboard Rcomp target values */
.targets = {40, 30, 30, 30, 30},
},
/* DQ byte map */
.lpx_dq_map = {
.ddr0 = {
.dq0 = { 9, 11, 8, 10, 12, 14, 13, 15, },
.dq1 = { 4, 7, 6, 5, 2, 3, 0, 1, },
},
.ddr1 = {
.dq0 = { 15, 12, 14, 13, 9, 10, 11, 8, },
.dq1 = { 0, 1, 3, 2, 7, 5, 4, 6, },
},
.ddr2 = {
.dq0 = { 2, 3, 1, 0, 6, 7, 5, 4, },
.dq1 = { 15, 9, 14, 8, 11, 10, 13, 12, },
},
.ddr3 = {
.dq0 = { 3, 1, 2, 0, 4, 6, 7, 5, },
.dq1 = { 13, 15, 14, 12, 11, 9, 8, 10, },
},
.ddr4 = {
.dq0 = { 13, 12, 14, 15, 9, 8, 10, 11, },
.dq1 = { 4, 7, 5, 6, 1, 2, 0, 3, },
},
.ddr5 = {
.dq0 = { 5, 0, 6, 4, 3, 1, 7, 2, },
.dq1 = { 11, 9, 10, 8, 15, 12, 14, 13, },
},
.ddr6 = {
.dq0 = { 15, 12, 14, 13, 10, 9, 11, 8, },
.dq1 = { 0, 1, 2, 3, 5, 6, 4, 7, },
},
.ddr7 = {
.dq0 = { 0, 3, 1, 2, 4, 5, 6, 7, },
.dq1 = { 11, 8, 13, 14, 9, 12, 15, 10, },
},
},
/* DQS CPU<>DRAM map */
.lpx_dqs_map = {
.ddr0 = { .dqs0 = 0, .dqs1 = 1 },
.ddr1 = { .dqs0 = 0, .dqs1 = 1 },
.ddr2 = { .dqs0 = 0, .dqs1 = 1 },
.ddr3 = { .dqs0 = 0, .dqs1 = 1 },
.ddr4 = { .dqs0 = 0, .dqs1 = 1 },
.ddr5 = { .dqs0 = 0, .dqs1 = 1 },
.ddr6 = { .dqs0 = 0, .dqs1 = 1 },
.ddr7 = { .dqs0 = 0, .dqs1 = 1 },
},
.ect = 1, /* Enable Early Command Training */
};
const struct mb_cfg *variant_memory_params(void)
{
return &baseboard_memcfg;
}
int variant_memory_sku(void)
{
/*
* Memory configuration board straps
* GPIO_MEM_CONFIG_0 GPP_E11
* GPIO_MEM_CONFIG_1 GPP_E2
* GPIO_MEM_CONFIG_2 GPP_E1
* GPIO_MEM_CONFIG_3 GPP_E12
*/
gpio_t spd_gpios[] = {
GPP_E11,
GPP_E2,
GPP_E1,
GPP_E12,
};
return gpio_base2_value(spd_gpios, ARRAY_SIZE(spd_gpios));
}
bool variant_is_half_populated(void)
{
/* GPIO_MEM_CH_SEL GPP_E13 */
return gpio_get(GPP_E13);
}
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