2 files changed, 75 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/xol/Makefile.mk b/src/mainboard/google/brya/variants/xol/Makefile.mk
index df044c28a5..641e814351 100644
--- a/src/mainboard/google/brya/variants/xol/Makefile.mk
+++ b/src/mainboard/google/brya/variants/xol/Makefile.mk
@@ -1,4 +1,5 @@
 ## SPDX-License-Identifier: GPL-2.0-only
 
 bootblock-y += gpio.c
+romstage-y += memory.c
 ramstage-y += gpio.c
diff --git a/src/mainboard/google/brya/variants/xol/memory.c b/src/mainboard/google/brya/variants/xol/memory.c
new file mode 100644
index 0000000000..f8afa73e14
--- /dev/null
+++ b/src/mainboard/google/brya/variants/xol/memory.c
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/variants.h>
+#include <soc/romstage.h>
+
+static const struct mb_cfg variant_memcfg = {
+	.type = MEM_TYPE_LP5X,
+
+	.rcomp = {
+		/* Baseboard uses only 100ohm Rcomp resistors */
+		.resistor = 100,
+	},
+
+	/* DQ byte map */
+	.lpx_dq_map = {
+		.ddr0 = {
+			.dq0 = { 11, 10,  9,  8, 15, 14, 13, 12 },
+			.dq1 = {  7,  5,  4,  6,  1,  2,  0,  3 },
+		},
+		.ddr1 = {
+			.dq0 = {  1,  4,  0,  2,  5,  3,  6,  7 },
+			.dq1 = { 14, 13, 12, 15, 11, 10,  9,  8 },
+		},
+		.ddr2 = {
+			.dq0 = { 11, 10,  9,  8, 13, 15, 12, 14 },
+			.dq1 = {  4,  6,  7,  5,  0,  1,  2,  3 },
+		},
+		.ddr3 = {
+			.dq0 = {  4,  5,  1,  0,  7,  2,  6,  3 },
+			.dq1 = { 15, 11, 10, 14,  9,  8, 13, 12 },
+		},
+		.ddr4 = {
+			.dq0 = { 10,  9,  8, 11, 13, 15, 14, 12 },
+			.dq1 = {  5,  4,  3,  6,  2,  1,  0,  7 },
+		},
+		.ddr5 = {
+			.dq0 = {  0,  5,  1,  4,  6,  3,  7,  2 },
+			.dq1 = { 10, 11, 13, 15, 14,  9, 12,  8 },
+		},
+		.ddr6 = {
+			.dq0 = {  9, 10, 11,  8, 14, 12, 13, 15 },
+			.dq1 = {  5,  7,  6,  4,  1,  2,  3,  0 },
+		},
+		.ddr7 = {
+			.dq0 = {  3,  1,  2,  0,  7,  6,  5,  4 },
+			.dq1 = { 10,  9, 15, 13, 11, 12, 14,  8 },
+		},
+	},
+
+	/* DQS CPU<>DRAM map */
+	.lpx_dqs_map = {
+		.ddr0 = { .dqs0 = 1, .dqs1 = 0 },
+		.ddr1 = { .dqs0 = 0, .dqs1 = 1 },
+		.ddr2 = { .dqs0 = 1, .dqs1 = 0 },
+		.ddr3 = { .dqs0 = 0, .dqs1 = 1 },
+		.ddr4 = { .dqs0 = 1, .dqs1 = 0 },
+		.ddr5 = { .dqs0 = 0, .dqs1 = 1 },
+		.ddr6 = { .dqs0 = 1, .dqs1 = 0 },
+		.ddr7 = { .dqs0 = 0, .dqs1 = 1 },
+	},
+
+	.lp5x_config = {
+		.ccc_config = 0xff,
+	},
+
+	.ect = 1, /* Early Command Training */
+
+	.UserBd = BOARD_TYPE_MOBILE,
+};
+
+const struct mb_cfg *variant_memory_params(void)
+{
+	return &variant_memcfg;
+}