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mb/google/brya/variant/agah: Update memory settings 

Based on the agah schematic, add memory settings.

BUG=b:215662929
TEST=none

Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Change-Id: Ib45241d708d025ca75ed06e2bcf3997558723a62
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61313
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Bora Guvendik 2022-01-21 20:08:13 -08:00 committed by Felix Held
parent 3e4f28f8c2
commit 6fe32f55b7
2 changed files with 72 additions and 0 deletions
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2
src/mainboard/google/brya/variants/agah/Makefile.inc
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@ -3,4 +3,6 @@ bootblock-y += gpio.c
romstage-y += gpio.c
romstage-y += memory.c
ramstage-y += gpio.c

70
src/mainboard/google/brya/variants/agah/memory.c Normal file
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@ -0,0 +1,70 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <baseboard/variants.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 = { 3, 2, 0, 1, 4, 7, 6, 5, }, /* DDR_A_DQ0 */
.dq1 = { 12, 13, 14, 15, 9, 10, 8, 11, }, /* DDR_A_DQ1 */
},
.ddr1 = {
.dq0 = { 14, 8, 9, 15, 10, 12, 11, 13, }, /* DDR_A_DQ2 */
.dq1 = { 1, 7, 6, 0, 5, 3, 4, 2, }, /* DDR_A_DQ3 */
},
.ddr2 = {
.dq0 = { 2, 3, 1, 0, 6, 5, 7, 4, }, /* DDR_A_DQ4 */
.dq1 = { 12, 13, 14, 15, 10, 11, 9, 8, }, /* DDR_A_DQ5 */
},
.ddr3 = {
.dq0 = { 1, 2, 0, 3, 5, 6, 7, 4, }, /* DDR_A_DQ6 */
.dq1 = { 15, 14, 13, 12, 10, 9, 8, 11, }, /* DDR_A_DQ7 */
},
.ddr4 = {
.dq0 = { 3, 2, 1, 0, 7, 6, 5, 4, }, /* DDR_B_DQ0 */
.dq1 = { 12, 15, 13, 14, 8, 9, 10, 11, }, /* DDR_B_DQ1 */
},
.ddr5 = {
.dq0 = { 14, 8, 9, 15, 12, 10, 11, 13, }, /* DDR_B_DQ2 */
.dq1 = { 1, 7, 6, 0, 5, 2, 4, 3, }, /* DDR_B_DQ3 */
},
.ddr6 = {
.dq0 = { 13, 12, 15, 14, 8, 10, 9, 11, }, /* DDR_B_DQ4 */
.dq1 = { 7, 4, 6, 5, 1, 0, 3, 2, }, /* DDR_B_DQ5 */
},
.ddr7 = {
.dq0 = { 6, 0, 7, 5, 3, 2, 1, 4, }, /* DDR_B_DQ6 */
.dq1 = { 10, 8, 13, 12, 9, 14, 15, 11, }, /* DDR_B_DQ7 */
},
},
/* DQS CPU<>DRAM map */
.lpx_dqs_map = {
.ddr0 = { .dqs0 = 0, .dqs1 = 1 },
.ddr1 = { .dqs0 = 1, .dqs1 = 0 },
.ddr2 = { .dqs0 = 0, .dqs1 = 1 },
.ddr3 = { .dqs0 = 0, .dqs1 = 1 },
.ddr4 = { .dqs0 = 0, .dqs1 = 1 },
.ddr5 = { .dqs0 = 1, .dqs1 = 0 },
.ddr6 = { .dqs0 = 1, .dqs1 = 0 },
.ddr7 = { .dqs0 = 0, .dqs1 = 1 },
},
.ect = 1, /* Enable Early Command Training */
};
const struct mb_cfg *__weak variant_memory_params(void)
{
return &baseboard_memcfg;
}