diff options
| author | Tarun Tuli <taruntuli@google.com> | 2022-07-27 12:48:40 -0400 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2022-08-06 15:15:53 +0000 |
| commit | d454f86ed8603dc0ea17aa0fef2ef8e8888d66f9 (patch) | |
| tree | 39f298c59492fc23c3c594fbed3c7e942f8585a4 /src/mainboard | |
| parent | 151dcf49a67d5422a99be484c583e6cdbb094292 (diff) | |
mb/google/rex: Add memory config for rex
Configure the rcomp, dqs and dq tables based on the schematic
dated July 17/2022 and Intel Kit #573387.
TEST=Built successfully
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Change-Id: I092f42db252052382d377a4ae48dc25f73080a3b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66202
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/rex/variants/baseboard/rex/memory.c | 59 |
1 files changed, 57 insertions, 2 deletions
diff --git a/src/mainboard/google/rex/variants/baseboard/rex/memory.c b/src/mainboard/google/rex/variants/baseboard/rex/memory.c index f39a54c962..9eaef9559a 100644 --- a/src/mainboard/google/rex/variants/baseboard/rex/memory.c +++ b/src/mainboard/google/rex/variants/baseboard/rex/memory.c @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* SPDX-License-Identifier: GPL-3.0-or-later */ #include <baseboard/gpio.h> #include <baseboard/variants.h> @@ -6,10 +6,65 @@ static const struct mb_cfg baseboard_memcfg = { .type = MEM_TYPE_LP5X, + + .rcomp = { + /* Baseboard uses only 100ohm Rcomp resistors */ + .resistor = 100, + }, + + /* DQ byte map */ + .lpx_dq_map = { + .ddr0 = { + .dq0 = { 7, 1, 2, 0, 3, 6, 5, 4 }, + .dq1 = { 13, 12, 14, 15, 8, 9, 10, 11 }, + }, + .ddr1 = { + .dq0 = { 10, 9, 11, 8, 15, 13, 14, 12 }, + .dq1 = { 6, 0, 7, 4, 3, 1, 2, 5 }, + }, + .ddr2 = { + .dq0 = { 11, 10, 8, 9, 12, 15, 14, 13 }, + .dq1 = { 7, 0, 6, 5, 3, 2, 1, 4 }, + }, + .ddr3 = { + .dq0 = { 13, 10, 8, 9, 14, 11, 15, 12 }, + .dq1 = { 1, 6, 4, 7, 0, 5, 2, 3 }, + }, + .ddr4 = { + .dq0 = { 10, 11, 9, 12, 13, 14, 15, 8 }, + .dq1 = { 6, 7, 4, 5, 1, 0, 3, 2 }, + }, + .ddr5 = { + .dq0 = { 0, 5, 3, 6, 1, 4, 2, 7 }, + .dq1 = { 8, 11, 10, 9, 15, 14, 13, 12 }, + }, + .ddr6 = { + .dq0 = { 1, 3, 0, 2, 6, 5, 7, 4 }, + .dq1 = { 13, 15, 14, 12, 11, 10, 8, 9 }, + }, + .ddr7 = { + .dq0 = { 10, 9, 11, 8, 12, 15, 14, 13 }, + .dq1 = { 6, 4, 7, 5, 2, 1, 0, 3 }, + }, + }, + + /* DQS CPU<>DRAM map */ + .lpx_dqs_map = { + .ddr0 = { .dqs0 = 1, .dqs1 = 0 }, + .ddr1 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr2 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr3 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr4 = { .dqs0 = 1, .dqs1 = 0 }, + .ddr5 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr6 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr7 = { .dqs0 = 0, .dqs1 = 1 }, + }, + .lp5x_config = { .ccc_config = 0x66, }, - .ect = 1, /* Enable Early Command Training */ + + .ect = 1, /* Early Command Training */ }; const struct mb_cfg *__weak variant_memory_params(void) |