diff options
author | Aaron Durbin <adurbin@chromium.org> | 2016-05-10 15:09:44 -0500 |
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committer | Aaron Durbin <adurbin@chromium.org> | 2016-05-13 22:38:53 +0200 |
commit | e065bb43d78be33060316a35685dad30ab70da0f (patch) | |
tree | d7266fa2a9029d5bee87c87d8a0b0de0c11daa86 /src/mainboard/google/reef/romstage.c | |
parent | fc2e7413b33549814022e2734a68832e9d9be918 (diff) | |
download | coreboot-e065bb43d78be33060316a35685dad30ab70da0f.tar.xz |
mainboard/google: add reef reference board
This adds the initial scaffolding for the reef reference board.
One big thing missing is the GPIO configuration.
Change-Id: I8e2d275df296bb397bb33dbd0c66fc87c82ff10f
Signed-off-by: Aaron Durbni <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14798
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@google.com>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/mainboard/google/reef/romstage.c')
-rw-r--r-- | src/mainboard/google/reef/romstage.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/romstage.c b/src/mainboard/google/reef/romstage.c new file mode 100644 index 0000000000..ecf6fa502d --- /dev/null +++ b/src/mainboard/google/reef/romstage.c @@ -0,0 +1,74 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2016 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 <soc/meminit.h> +#include <soc/romstage.h> + +static const struct lpddr4_swizzle_cfg board_swizzle = { + /* CH0_DQA[0:31] SoC pins -> U22 LPDDR4 module pins */ + .phys[LP4_PHYS_CH0A] = { + /* DQA[0:7] pins of LPDDR4 module. */ + .dqs[LP4_DQS0] = { 6, 7, 5, 4, 3, 1, 0, 2 }, + /* DQA[8:15] pins of LPDDR4 module. */ + .dqs[LP4_DQS1] = { 12, 10, 11, 13, 14, 8, 9, 15 }, + /* DQB[0:7] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS2] = { 16, 22, 23, 20, 18, 17, 19, 21 }, + /* DQB[7:15] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS3] = { 30, 28, 29, 25, 24, 26, 27, 31 }, + }, + .phys[LP4_PHYS_CH0B] = { + /* DQA[0:7] pins of LPDDR4 module. */ + .dqs[LP4_DQS0] = { 7, 3, 5, 2, 6, 0, 1, 4 }, + /* DQA[8:15] pins of LPDDR4 module. */ + .dqs[LP4_DQS1] = { 9, 14, 12, 13, 10, 11, 8, 15 }, + /* DQB[0:7] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS2] = { 20, 22, 23, 16, 19, 17, 18, 21 }, + /* DQB[7:15] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS3] = { 28, 24, 26, 27, 29, 30, 31, 25 }, + }, + .phys[LP4_PHYS_CH1A] = { + /* DQA[0:7] pins of LPDDR4 module. */ + .dqs[LP4_DQS0] = { 2, 1, 6, 7, 5, 4, 3, 0 }, + /* DQA[8:15] pins of LPDDR4 module. */ + .dqs[LP4_DQS1] = { 11, 10, 8, 9, 12, 15, 13, 14 }, + /* DQB[0:7] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS2] = { 17, 23, 19, 16, 21, 22, 20, 18 }, + /* DQB[7:15] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS3] = { 31, 29, 26, 25, 28, 27, 24, 30 }, + }, + .phys[LP4_PHYS_CH1B] = { + /* DQA[0:7] pins of LPDDR4 module. */ + .dqs[LP4_DQS0] = { 4, 3, 7, 5, 6, 1, 0, 2 }, + /* DQA[8:15] pins of LPDDR4 module. */ + .dqs[LP4_DQS1] = { 15, 9, 8, 11, 14, 13, 12, 10 }, + /* DQB[0:7] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS2] = { 20, 23, 22, 21, 18, 19, 16, 17 }, + /* DQB[7:15] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS3] = { 25, 28, 30, 31, 26, 27, 24, 29 }, + }, +}; + +void mainboard_memory_init_params(struct FSPM_UPD *memupd) +{ + struct FSP_M_CONFIG *cfg = &memupd->FspmConfig; + + /* Use a default 2400 speed. */ + meminit_lpddr4(cfg, LP4_SPEED_2400); + /* Enable both logical channels with a 8Gb density. */ + meminit_lpddr4_enable_channel(cfg, LP4_LCH0, LP4_8Gb_DENSITY, + &board_swizzle); + meminit_lpddr4_enable_channel(cfg, LP4_LCH1, LP4_8Gb_DENSITY, + &board_swizzle); +} |