diff options
| author | Furquan Shaikh <furquan@chromium.org> | 2017-12-04 20:16:55 -0800 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2017-12-07 07:46:03 +0000 |
| commit | 9bfd8141fb62408c288ce43c1c9ce6a4e6128aa1 (patch) | |
| tree | b6a36f95657a557524e68c0a9b14a32c82003d34 /src | |
| parent | 94aed8d615be092143e838a4c3bf8895438d7235 (diff) | |
| download | coreboot-9bfd8141fb62408c288ce43c1c9ce6a4e6128aa1.tar.xz | |
mb/google/poppy/variants/nautilus: Fix memory params
Until now, nautilus was using the DQ-DQS mappings provided by the
baseboard. However, based on schematics, these values are not
correct. This change adds DQ-DQS mapping tables for nautilus.
BUG=b:70188533
Change-Id: Ife6ba19b8fe8873ab8cca977ca8f34a4d86e8e6e
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/22706
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: shkim <sh_.kim@samsung.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/poppy/variants/nautilus/Makefile.inc | 3 | ||||
| -rw-r--r-- | src/mainboard/google/poppy/variants/nautilus/memory.c | 48 |
2 files changed, 51 insertions, 0 deletions
diff --git a/src/mainboard/google/poppy/variants/nautilus/Makefile.inc b/src/mainboard/google/poppy/variants/nautilus/Makefile.inc index fce99cb832..a4f4165aa8 100644 --- a/src/mainboard/google/poppy/variants/nautilus/Makefile.inc +++ b/src/mainboard/google/poppy/variants/nautilus/Makefile.inc @@ -4,5 +4,8 @@ SPD_SOURCES += samsung_dimm_K4E6E304EB-EGCF # 0b0001 SPD_SOURCES += samsung_dimm_K4EBE304EB-EGCG # 0b0010 bootblock-y += gpio.c + +romstage-y += memory.c + ramstage-y += gpio.c ramstage-y += nhlt.c diff --git a/src/mainboard/google/poppy/variants/nautilus/memory.c b/src/mainboard/google/poppy/variants/nautilus/memory.c new file mode 100644 index 0000000000..508c299532 --- /dev/null +++ b/src/mainboard/google/poppy/variants/nautilus/memory.c @@ -0,0 +1,48 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2017 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <baseboard/variants.h> + +/* DQ byte map */ +static const u8 dq_map[][12] = { + { 0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0, + 0x0F, 0x00, 0xFF, 0x00, 0xFF, 0x00 }, + { 0x33, 0xCC, 0x00, 0xCC, 0x33, 0xCC, + 0x33, 0x00, 0xFF, 0x00, 0xFF, 0x00 } +}; + +/* DQS CPU<>DRAM map */ +static const u8 dqs_map[][8] = { + { 0, 1, 3, 2, 4, 5, 6, 7 }, + { 1, 0, 4, 5, 2, 3, 6, 7 }, +}; + +/* Rcomp resistor */ +static const u16 rcomp_resistor[] = { 200, 81, 162 }; + +/* Rcomp target */ +static const u16 rcomp_target[] = { 100, 40, 40, 23, 40 }; + +void variant_memory_params(struct memory_params *p) +{ + p->dq_map = dq_map; + p->dq_map_size = sizeof(dq_map); + p->dqs_map = dqs_map; + p->dqs_map_size = sizeof(dqs_map); + p->rcomp_resistor = rcomp_resistor; + p->rcomp_resistor_size = sizeof(rcomp_resistor); + p->rcomp_target = rcomp_target; + p->rcomp_target_size = sizeof(rcomp_target); +} |