From 3fe067f650c479585126e28b45c69fca383aa304 Mon Sep 17 00:00:00 2001 From: Amanda Huang Date: Mon, 16 Jan 2023 15:30:04 +0800 Subject: mb/google/brya/var/omnigul: Add memory config Configure the rcomp, dqs and dq tables based on the schematic. BUG=b:264340545 BRANCH=firmware-brya-14505.B TEST=FW_NAME=omnigul emerge-brya coreboot Change-Id: I82ca8aa9c3535983d5c506c15dbc69e7be926fa0 Signed-off-by: Amanda Huang Reviewed-on: https://review.coreboot.org/c/coreboot/+/71930 Tested-by: build bot (Jenkins) Reviewed-by: Dtrain Hsu Reviewed-by: Marx Wang --- .../google/brya/variants/omnigul/Makefile.inc | 2 + .../google/brya/variants/omnigul/memory.c | 115 +++++++++++++++++++++ 2 files changed, 117 insertions(+) create mode 100644 src/mainboard/google/brya/variants/omnigul/memory.c (limited to 'src') diff --git a/src/mainboard/google/brya/variants/omnigul/Makefile.inc b/src/mainboard/google/brya/variants/omnigul/Makefile.inc index d7d2ef7fa2..a9bae70fc8 100644 --- a/src/mainboard/google/brya/variants/omnigul/Makefile.inc +++ b/src/mainboard/google/brya/variants/omnigul/Makefile.inc @@ -4,3 +4,5 @@ bootblock-y += gpio.c ramstage-y += gpio.c romstage-y += gpio.c + +romstage-y += memory.c diff --git a/src/mainboard/google/brya/variants/omnigul/memory.c b/src/mainboard/google/brya/variants/omnigul/memory.c new file mode 100644 index 0000000000..f72b729e90 --- /dev/null +++ b/src/mainboard/google/brya/variants/omnigul/memory.c @@ -0,0 +1,115 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include +#include +#include +#include + +static const struct mb_cfg baseboard_memcfg = { + .type = MEM_TYPE_LP5X, + + .rcomp = { + /* Baseboard uses only 100ohm Rcomp resistors */ + .resistor = 100, + }, + + /* DQ byte map */ + .lpx_dq_map = { + .ddr0 = { + .dq0 = { 0, 3, 2, 1, 6, 4, 5, 7 }, + .dq1 = { 14, 12, 13, 15, 11, 8, 10, 9 }, + }, + .ddr1 = { + .dq0 = { 1, 0, 2, 3, 6, 4, 7, 5 }, + .dq1 = { 15, 13, 12, 14, 8, 11, 10, 9 }, + }, + .ddr2 = { + .dq0 = { 2, 1, 3, 0, 7, 6, 4, 5 }, + .dq1 = { 14, 12, 13, 15, 8, 9, 10, 11 }, + }, + .ddr3 = { + .dq0 = { 1, 2, 3, 0, 6, 4, 7, 5 }, + .dq1 = { 13, 15, 12, 14, 8, 11, 10, 9 }, + }, + .ddr4 = { + .dq0 = { 2, 3, 0, 1, 6, 5, 7, 4 }, + .dq1 = { 14, 12, 13, 15, 8, 10, 9, 11 }, + }, + .ddr5 = { + .dq0 = { 1, 2, 3, 0, 6, 4, 7, 5 }, + .dq1 = { 15, 13, 12, 14, 11, 9, 10, 8 }, + }, + .ddr6 = { + .dq0 = { 3, 1, 2, 0, 5, 7, 6, 4 }, + .dq1 = { 15, 13, 14, 12, 10, 9, 11, 8 }, + }, + .ddr7 = { + .dq0 = { 2, 3, 1, 0, 5, 4, 7, 6 }, + .dq1 = { 14, 15, 10, 11, 13, 8, 9, 12 }, + }, + }, + + /* DQS CPU<>DRAM map */ + .lpx_dqs_map = { + .ddr0 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr1 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr2 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr3 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr4 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr5 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr6 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr7 = { .dqs0 = 0, .dqs1 = 1 }, + }, + + .lp5x_config = { + .ccc_config = 0xff, + }, + + .ect = 1, /* Early Command Training */ + + .UserBd = BOARD_TYPE_ULT_ULX, +}; + +const struct mb_cfg *variant_memory_params(void) +{ + return &baseboard_memcfg; +} + +int variant_memory_sku(void) +{ + /* + * Memory configuration board straps + * GPIO_MEM_CONFIG_0 GPP_E11 + * GPIO_MEM_CONFIG_1 GPP_E2 + * GPIO_MEM_CONFIG_2 GPP_E1 + * GPIO_MEM_CONFIG_3 GPP_E12 + */ + gpio_t spd_gpios[] = { + GPP_E11, + GPP_E2, + GPP_E1, + GPP_E12, + }; + + return gpio_base2_value(spd_gpios, ARRAY_SIZE(spd_gpios)); +} + +bool variant_is_half_populated(void) +{ + /* + * Ideally half_populated is used in platforms with multiple channels to + * enable only one half of the channel. Alder Lake N has single channel, + * and it would require for new structures to be defined in meminit block + * driver for LPx memory configurations. In order to avoid adding new + * structures, set half_populated to true. This has the same effect as + * having single channel with 64-bit width. + */ + /* GPIO_MEM_CH_SEL GPP_E13 */ + return gpio_get(GPP_E13); +} + +void variant_get_spd_info(struct mem_spd *spd_info) +{ + spd_info->topo = MEM_TOPO_MEMORY_DOWN; + spd_info->cbfs_index = variant_memory_sku(); +} -- cgit v1.2.3