Change in coreboot[master]: siemens/mc_apl1: Make the DDR memory swizzle data configurable
Mario Scheithauer has uploaded this change for review. ( https://review.coreboot.org/28730
Change subject: siemens/mc_apl1: Make the DDR memory swizzle data configurable ......................................................................
siemens/mc_apl1: Make the DDR memory swizzle data configurable
In preparation for a future MC Apollo Lake board which will be equipped with LPDDR4 modules, it is necessary to make the swizzle data configurable. Starting from the mc_apl1 baseboard, which is equipped with DDR3L memory and therefore does not need swizzle data, the structures are initialized with zero.
Change-Id: I4954d0a00d1d5fc28a8dda45a9fb27f98d5c3f1e Signed-off-by: Mario Scheithauer mario.scheithauer@siemens.com --- M src/mainboard/siemens/mc_apl1/romstage.c M src/mainboard/siemens/mc_apl1/variants/baseboard/Makefile.inc M src/mainboard/siemens/mc_apl1/variants/baseboard/include/baseboard/variants.h A src/mainboard/siemens/mc_apl1/variants/baseboard/memory.c 4 files changed, 143 insertions(+), 34 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/30/28730/1
diff --git a/src/mainboard/siemens/mc_apl1/romstage.c b/src/mainboard/siemens/mc_apl1/romstage.c index d56c7ee..f2786cf 100644 --- a/src/mainboard/siemens/mc_apl1/romstage.c +++ b/src/mainboard/siemens/mc_apl1/romstage.c @@ -18,39 +18,18 @@ #include <hwilib.h> #include <lib.h> #include <string.h> +#include <soc/meminit.h> #include <soc/romstage.h> #include <fsp/api.h> #include <FspmUpd.h> #include <baseboard/variants.h>
-static const uint8_t Ch0_Bit_swizzling[] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 -}; -static const uint8_t Ch1_Bit_swizzling[] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 -}; -static const uint8_t Ch2_Bit_swizzling[] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 -}; -static const uint8_t Ch3_Bit_swizzling[] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 -}; - void mainboard_memory_init_params(FSPM_UPD *memupd) { const struct pad_config *pads; + const struct lpddr4_swizzle_cfg *cfg; + const struct lpddr4_chan_swizzle_cfg *chan; + const size_t sz = DQ_BITS_PER_DQS; uint8_t spd[0x80]; size_t num;
@@ -58,7 +37,8 @@ pads = variant_early_gpio_table(&num); gpio_configure_pads(pads, num);
- /* Get DRAM configuration data from hwinfo block. + /* + * Get DRAM configuration data from hwinfo block. * The configuration data from hwinfo block is a one-to-one * representation of the FSPM_UPD data starting with parameter * 'Package' (offset 0x4d) and ending before parameter @@ -80,14 +60,70 @@ (((uint8_t *)memupd->FspmConfig.Ch0_Bit_swizzling)- (&memupd->FspmConfig.Package)));
- memcpy(memupd->FspmConfig.Ch0_Bit_swizzling, &Ch0_Bit_swizzling, - sizeof(Ch0_Bit_swizzling)); - memcpy(memupd->FspmConfig.Ch1_Bit_swizzling, &Ch1_Bit_swizzling, - sizeof(Ch1_Bit_swizzling)); - memcpy(memupd->FspmConfig.Ch2_Bit_swizzling, &Ch2_Bit_swizzling, - sizeof(Ch2_Bit_swizzling)); - memcpy(memupd->FspmConfig.Ch3_Bit_swizzling, &Ch3_Bit_swizzling, - sizeof(Ch3_Bit_swizzling)); + /* + * Some of the mc_apl1 boards use LPDDR4 memory. In this case, the + * correct swizzle configuration is necessary. The default settings + * for swizzling are 0, since the baseboard does not use LPDDR4 memory. + */ + cfg = variant_lpddr4_swizzle_config(); + + /* + * CH0_DQB byte lanes in the bit swizzle configuration field are + * not 1:1. The mapping within the swizzling field is: + * indices [0:7] - byte lane 1 (DQS1) DQ[8:15] + * indices [8:15] - byte lane 0 (DQS0) DQ[0:7] + * indices [16:23] - byte lane 3 (DQS3) DQ[24:31] + * indices [24:31] - byte lane 2 (DQS2) DQ[16:23] + */ + chan = &cfg->phys[LP4_PHYS_CH0B]; + memcpy(&memupd->FspmConfig.Ch0_Bit_swizzling[0], &chan->dqs[LP4_DQS1], + sz); + memcpy(&memupd->FspmConfig.Ch0_Bit_swizzling[8], &chan->dqs[LP4_DQS0], + sz); + memcpy(&memupd->FspmConfig.Ch0_Bit_swizzling[16], &chan->dqs[LP4_DQS3], + sz); + memcpy(&memupd->FspmConfig.Ch0_Bit_swizzling[24], &chan->dqs[LP4_DQS2], + sz); + + /* CH0_DQA byte lanes in the bit swizzle configuration field are 1:1. */ + chan = &cfg->phys[LP4_PHYS_CH0A]; + memcpy(&memupd->FspmConfig.Ch1_Bit_swizzling[0], &chan->dqs[LP4_DQS0], + sz); + memcpy(&memupd->FspmConfig.Ch1_Bit_swizzling[8], &chan->dqs[LP4_DQS1], + sz); + memcpy(&memupd->FspmConfig.Ch1_Bit_swizzling[16], &chan->dqs[LP4_DQS2], + sz); + memcpy(&memupd->FspmConfig.Ch1_Bit_swizzling[24], &chan->dqs[LP4_DQS3], + sz); + + /* + * CH1_DQB byte lanes in the bit swizzle configuration field are + * not 1:1. The mapping within the swizzling field is: + * indices [0:7] - byte lane 1 (DQS1) DQ[8:15] + * indices [8:15] - byte lane 0 (DQS0) DQ[0:7] + * indices [16:23] - byte lane 3 (DQS3) DQ[24:31] + * indices [24:31] - byte lane 2 (DQS2) DQ[16:23] + */ + chan = &cfg->phys[LP4_PHYS_CH1B]; + memcpy(&memupd->FspmConfig.Ch2_Bit_swizzling[0], &chan->dqs[LP4_DQS1], + sz); + memcpy(&memupd->FspmConfig.Ch2_Bit_swizzling[8], &chan->dqs[LP4_DQS0], + sz); + memcpy(&memupd->FspmConfig.Ch2_Bit_swizzling[16], &chan->dqs[LP4_DQS3], + sz); + memcpy(&memupd->FspmConfig.Ch2_Bit_swizzling[24], &chan->dqs[LP4_DQS2], + sz); + + /* CH1_DQA byte lanes in the bit swizzle configuration field are 1:1. */ + chan = &cfg->phys[LP4_PHYS_CH1A]; + memcpy(&memupd->FspmConfig.Ch3_Bit_swizzling[0], &chan->dqs[LP4_DQS0], + sz); + memcpy(&memupd->FspmConfig.Ch3_Bit_swizzling[8], &chan->dqs[LP4_DQS1], + sz); + memcpy(&memupd->FspmConfig.Ch3_Bit_swizzling[16], &chan->dqs[LP4_DQS2], + sz); + memcpy(&memupd->FspmConfig.Ch3_Bit_swizzling[24], &chan->dqs[LP4_DQS3], + sz);
memupd->FspmConfig.MsgLevelMask = 0x0; memupd->FspmConfig.MrcDataSaving = 0x0; diff --git a/src/mainboard/siemens/mc_apl1/variants/baseboard/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/baseboard/Makefile.inc index e3e87ce..07ebf9b 100644 --- a/src/mainboard/siemens/mc_apl1/variants/baseboard/Makefile.inc +++ b/src/mainboard/siemens/mc_apl1/variants/baseboard/Makefile.inc @@ -1,3 +1,4 @@ romstage-y += gpio.c +romstage-y += memory.c
ramstage-y += gpio.c diff --git a/src/mainboard/siemens/mc_apl1/variants/baseboard/include/baseboard/variants.h b/src/mainboard/siemens/mc_apl1/variants/baseboard/include/baseboard/variants.h index 09153c6..6828ed8 100644 --- a/src/mainboard/siemens/mc_apl1/variants/baseboard/include/baseboard/variants.h +++ b/src/mainboard/siemens/mc_apl1/variants/baseboard/include/baseboard/variants.h @@ -26,6 +26,9 @@ const struct pad_config *variant_gpio_table(size_t *num); const struct pad_config *variant_early_gpio_table(size_t *num);
+/* This function provides the swizzle data for the DRAM initialization. */ +const struct lpddr4_swizzle_cfg *variant_lpddr4_swizzle_config(void); + /* The following function performs board specific things. */ void variant_mainboard_final(void);
diff --git a/src/mainboard/siemens/mc_apl1/variants/baseboard/memory.c b/src/mainboard/siemens/mc_apl1/variants/baseboard/memory.c new file mode 100644 index 0000000..13b7ab8 --- /dev/null +++ b/src/mainboard/siemens/mc_apl1/variants/baseboard/memory.c @@ -0,0 +1,69 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2016 Google Inc. + * Copyright (C) 2018 Siemens AG + * + * 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> +#include <commonlib/helpers.h> +#include <compiler.h> +#include <soc/meminit.h> + +const struct lpddr4_swizzle_cfg baseboard_lpddr4_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] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQA[8:15] pins of LPDDR4 module. */ + .dqs[LP4_DQS1] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQB[0:7] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS2] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQB[7:15] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS3] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + }, + .phys[LP4_PHYS_CH0B] = { + /* DQA[0:7] pins of LPDDR4 module. */ + .dqs[LP4_DQS0] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQA[8:15] pins of LPDDR4 module. */ + .dqs[LP4_DQS1] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQB[0:7] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS2] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQB[7:15] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS3] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + }, + .phys[LP4_PHYS_CH1A] = { + /* DQA[0:7] pins of LPDDR4 module. */ + .dqs[LP4_DQS0] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQA[8:15] pins of LPDDR4 module. */ + .dqs[LP4_DQS1] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQB[0:7] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS2] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQB[7:15] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS3] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + }, + .phys[LP4_PHYS_CH1B] = { + /* DQA[0:7] pins of LPDDR4 module. */ + .dqs[LP4_DQS0] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQA[8:15] pins of LPDDR4 module. */ + .dqs[LP4_DQS1] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQB[0:7] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS2] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + /* DQB[7:15] pins of LPDDR4 module with offset of 16. */ + .dqs[LP4_DQS3] = { 0, 0, 0, 0, 0, 0, 0, 0 }, + }, +}; + +const struct lpddr4_swizzle_cfg * __weak variant_lpddr4_swizzle_config(void) +{ + return &baseboard_lpddr4_swizzle; +}
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Mario Scheithauer (Code Review)