Teddy Shih has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/60244 )
Change subject: mb/google/dedede/var/beadrix: Correct memory settings ......................................................................
mb/google/dedede/var/beadrix: Correct memory settings
Based on the beadrix's schematic, generate memory settings.
BUG=b:204882915, b:210123929 BRANCH=None TEST=Built test coreboot image
Signed-off-by: Teddy Shih teddyshih@ami.corp-partner.google.com Change-Id: I935581fbf21be4820b03a608ea5bd60b1c000baa --- A src/mainboard/google/dedede/variants/beadrix/Makefile.inc A src/mainboard/google/dedede/variants/beadrix/memory.c 2 files changed, 51 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/44/60244/1
diff --git a/src/mainboard/google/dedede/variants/beadrix/Makefile.inc b/src/mainboard/google/dedede/variants/beadrix/Makefile.inc new file mode 100644 index 0000000..566f5cc --- /dev/null +++ b/src/mainboard/google/dedede/variants/beadrix/Makefile.inc @@ -0,0 +1,3 @@ +## SPDX-License-Identifier: GPL-2.0-or-later + +romstage-y += memory.c diff --git a/src/mainboard/google/dedede/variants/beadrix/memory.c b/src/mainboard/google/dedede/variants/beadrix/memory.c new file mode 100644 index 0000000..bfef45b --- /dev/null +++ b/src/mainboard/google/dedede/variants/beadrix/memory.c @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include <baseboard/variants.h> +#include <baseboard/gpio.h> +#include <gpio.h> +#include <soc/meminit.h> +#include <soc/romstage.h> + +static const struct mb_cfg board_memcfg_cfg = { + + .dq_map[DDR_CH0] = { + {0xf, 0xf0}, + {0xf, 0xf0}, + {0xff, 0x0}, + {0x0, 0x0}, + {0x0, 0x0}, + {0x0, 0x0} + }, + .dq_map[DDR_CH1] = { + {0xf, 0xf0}, + {0xf, 0xf0}, + {0xff, 0x0}, + {0x0, 0x0}, + {0x00, 0x0}, + {0x00, 0x0} + }, + + /* + * The dqs_map arrays map the ddr4 pins to the SoC pins + * for both channels. + * + * the index = pin number on SoC + * the value = pin number on LPDDR4 part + */ + .dqs_map[DDR_CH0] = {0, 3, 2, 1, 7, 5, 4, 6}, + .dqs_map[DDR_CH1] = {3, 1, 2, 0, 4, 7, 6, 5}, + + /* Disable Early Command Training */ + .ect = 1, + + /* User Board Type */ + .UserBd = BOARD_TYPE_MOBILE, +}; + +const struct mb_cfg *variant_memcfg_config(void) +{ + return &board_memcfg_cfg; +}