diff options
| author | David Wu <david_wu@quanta.corp-partner.google.com> | 2020-11-02 14:20:40 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-11-04 09:42:28 +0000 |
| commit | c98ba034932bc2c3874a60d4ae36d799777e53be (patch) | |
| tree | 56bcb606d3fbad30597a0e1804bfa0355ee22bc7 /src/mainboard/google/volteer/variants | |
| parent | 3384e4a709b97071a67b724bc9f4a4208f0f5fe8 (diff) | |
mb/google/volteer/var/voema: Update dq/dqs mappings
Update dq/dqs mappings based on voema schematics.
BUG=b:169356808
BRANCH=volteer
TEST=FW_NAME=voema emerge-volteer coreboot chromeos-bootimage
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: I1aae4286278e712bf29ebb15738477828d3f74d6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47093
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src/mainboard/google/volteer/variants')
| -rw-r--r-- | src/mainboard/google/volteer/variants/voema/Makefile.inc | 3 | ||||
| -rw-r--r-- | src/mainboard/google/volteer/variants/voema/memory.c | 65 |
2 files changed, 68 insertions, 0 deletions
diff --git a/src/mainboard/google/volteer/variants/voema/Makefile.inc b/src/mainboard/google/volteer/variants/voema/Makefile.inc new file mode 100644 index 0000000000..9064208bff --- /dev/null +++ b/src/mainboard/google/volteer/variants/voema/Makefile.inc @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only + +romstage-y += memory.c diff --git a/src/mainboard/google/volteer/variants/voema/memory.c b/src/mainboard/google/volteer/variants/voema/memory.c new file mode 100644 index 0000000000..b611af5161 --- /dev/null +++ b/src/mainboard/google/volteer/variants/voema/memory.c @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <baseboard/variants.h> + +static const struct lpddr4x_cfg voema_memcfg = { + /* DQ byte map */ + .dq_map = { + [0] = { + { 7, 3, 1, 4, 0, 5, 2, 6, }, /* DDR0_DQ0[7:0] */ + { 13, 14, 8, 10, 9, 15, 11, 12 }, /* DDR0_DQ1[7:0] */ + }, + [1] = { + { 1, 2, 7, 6, 3, 5, 4, 0, }, /* DDR1_DQ0[7:0] */ + { 14, 15, 13, 10, 8, 11, 12, 9 }, /* DDR1_DQ1[7:0] */ + }, + [2] = { + { 11, 15, 10, 9, 8, 12, 13, 14, }, /* DDR2_DQ0[7:0] */ + { 5, 6, 4, 0, 7, 2, 3, 1 }, /* DDR2_DQ1[7:0] */ + }, + [3] = { + { 11, 15, 10, 9, 13, 12, 14, 8, }, /* DDR3_DQ0[7:0] */ + { 0, 5, 6, 4, 1, 2, 7, 3 }, /* DDR3_DQ1[7:0] */ + }, + [4] = { + { 7, 2, 3, 1, 4, 0, 5, 6, }, /* DDR4_DQ0[7:0] */ + { 13, 14, 8, 12, 10, 9, 15, 11 }, /* DDR4_DQ1[7:0] */ + }, + [5] = { + { 7, 3, 2, 1, 6, 4, 0, 5, }, /* DDR5_DQ0[7:0] */ + { 15, 14, 12, 8, 11, 13, 9, 10 }, /* DDR5_DQ1[7:0] */ + }, + [6] = { + { 11, 10, 15, 12, 8, 9, 14, 13, }, /* DDR6_DQ0[7:0] */ + { 6, 0, 5, 4, 3, 2, 7, 1 }, /* DDR6_DQ1[7:0] */ + }, + [7] = { + { 9, 10, 11, 8, 12, 14, 13, 15, }, /* DDR7_DQ0[7:0] */ + { 0, 5, 4, 7, 1, 6, 3, 2 }, /* DDR7_DQ1[7:0] */ + }, + }, + + /* DQS CPU<>DRAM map */ + .dqs_map = { + [0] = { 0, 1 }, /* DDR0_DQS[1:0] */ + [1] = { 0, 1 }, /* DDR1_DQS[1:0] */ + [2] = { 1, 0 }, /* DDR2_DQS[1:0] */ + [3] = { 1, 0 }, /* DDR3_DQS[1:0] */ + [4] = { 0, 1 }, /* DDR4_DQS[1:0] */ + [5] = { 0, 1 }, /* DDR5_DQS[1:0] */ + [6] = { 1, 0 }, /* DDR6_DQS[1:0] */ + [7] = { 1, 0 }, /* DDR7_DQS[1:0] */ + }, + + .ect = 1, /* Enable Early Command Training */ +}; + +static const struct ddr_memory_cfg board_memcfg = { + .mem_type = MEMTYPE_LPDDR4X, + .lpddr4_cfg = &voema_memcfg +}; + +const struct ddr_memory_cfg *variant_memory_params(void) +{ + return &board_memcfg; +} |