huayang duan has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/34532 )
Change subject: mediatek/mt8183: Add SAMSUNG 4GB LPDDR4X discrete DDR support ......................................................................
mediatek/mt8183: Add SAMSUNG 4GB LPDDR4X discrete DDR support
BUG=b:80501386 BRANCH=none TEST=Boots correctly and stress test pass on Kukui.
Change-Id: I27164f0909edb9d9398835e292fb845f0e342391 Signed-off-by: Huayang Duan huayang.duan@mediatek.com --- M src/mainboard/google/kukui/sdram_configs.c M src/mainboard/google/kukui/sdram_params/Makefile.inc A src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB.c 3 files changed, 43 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/32/34532/1
diff --git a/src/mainboard/google/kukui/sdram_configs.c b/src/mainboard/google/kukui/sdram_configs.c index 5931c79..8b9e830 100644 --- a/src/mainboard/google/kukui/sdram_configs.c +++ b/src/mainboard/google/kukui/sdram_configs.c @@ -19,6 +19,7 @@ #include <soc/emi.h>
static const char *const sdram_configs[] = { + [0] = "sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB", [1] = "sdram-lpddr4x-H9HCNNNCPMALHR-4GB", [2] = "sdram-lpddr4x-MT53E1G32D4NQ-4GB", [3] = "sdram-lpddr4x-KMDP6001DA-B425-4GB", diff --git a/src/mainboard/google/kukui/sdram_params/Makefile.inc b/src/mainboard/google/kukui/sdram_params/Makefile.inc index 77158a5..bac5279 100644 --- a/src/mainboard/google/kukui/sdram_params/Makefile.inc +++ b/src/mainboard/google/kukui/sdram_params/Makefile.inc @@ -1,4 +1,5 @@ sdram-params := +sdram-params += sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB sdram-params += sdram-lpddr4x-H9HCNNNCPMALHR-4GB sdram-params += sdram-lpddr4x-MT53E1G32D4NQ-4GB sdram-params += sdram-lpddr4x-KMDP6001DA-B425-4GB diff --git a/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB.c b/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB.c new file mode 100644 index 0000000..5531a7f --- /dev/null +++ b/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-K4UBE3D4AA-MGCL-4GB.c @@ -0,0 +1,41 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 MediaTek 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/emi.h> + +struct sdram_params params = { + .impedance = { + [ODT_OFF] = {0x9, 0x7, 0x0, 0xF}, + [ODT_ON] = {0x10, 0x9, 0x0, 0xE} + }, + .wr_level = { + [CHANNEL_A] = { {0x22, 0x1C}, {0x23, 0x1D} }, + [CHANNEL_B] = { {0x22, 0x1E}, {0x25, 0x22} } + }, + .cbt_cs = { + [CHANNEL_A] = {0x6, 0x5}, + [CHANNEL_B] = {0x6, 0x6} + }, + .cbt_mr12 = { + [CHANNEL_A] = {0x56, 0x58}, + [CHANNEL_B] = {0x58, 0x56} + }, + .emi_cona_val = 0xF053F154, + .emi_conh_val = 0x44440003, + .emi_conf_val = 0x00421000, + .chn_emi_cona_val = {0x0444F051, 0x0444F051}, + .cbt_mode_extern = CBT_NORMAL_MODE, + .delay_cell_unit = 868, +};