| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <baseboard/variants.h> |
| #include <baseboard/gpio.h> |
| #include <boardid.h> |
| #include <gpio.h> |
| #include <soc/cnl_memcfg_init.h> |
| #include <string.h> |
| #include <variant/gpio.h> |
| |
| static const struct cnl_mb_cfg baseboard_memcfg = { |
| /* |
| * The dqs_map arrays map the SoC pins to the lpddr3 pins |
| * for both channels. |
| * |
| * "The index of the array is CPU byte number, the values are DRAM byte |
| * numbers." - doc #573387 |
| * |
| * the index = pin number on SoC |
| * the value = pin number on lpddr3 part |
| */ |
| .dqs_map[DDR_CH0] = {4, 7, 5, 6, 0, 3, 2, 1}, |
| .dqs_map[DDR_CH1] = {0, 3, 2, 1, 4, 7, 6, 5}, |
| |
| .dq_map[DDR_CH0] = { |
| {0xf0, 0xf}, |
| {0x0, 0xf}, |
| {0xf0, 0xf}, |
| {0xf0, 0x0}, |
| {0xff, 0x0}, |
| {0xff, 0x0} |
| }, |
| .dq_map[DDR_CH1] = { |
| {0xf, 0xf0}, |
| {0x0, 0xf0}, |
| {0xf, 0xf0}, |
| {0xf, 0x0}, |
| {0xff, 0x0}, |
| {0xff, 0x0} |
| }, |
| |
| /* Helios uses 200, 80.6 and 162 rcomp resistors */ |
| .rcomp_resistor = {200, 81, 162}, |
| |
| /* Helios Rcomp target values */ |
| .rcomp_targets = {100, 40, 40, 23, 40}, |
| |
| /* Set CaVref config to 0 for LPDDR3 */ |
| .vref_ca_config = 0, |
| |
| /* Disable Early Command Training */ |
| .ect = 0, |
| }; |
| |
| void variant_memory_params(struct cnl_mb_cfg *bcfg) |
| { |
| memcpy(bcfg, &baseboard_memcfg, sizeof(baseboard_memcfg)); |
| } |
| |
| int variant_memory_sku(void) |
| { |
| const gpio_t spd_gpios[] = { |
| GPIO_MEM_CONFIG_0, |
| GPIO_MEM_CONFIG_1, |
| GPIO_MEM_CONFIG_2, |
| GPIO_MEM_CONFIG_3, |
| }; |
| |
| int val = gpio_base2_value(spd_gpios, ARRAY_SIZE(spd_gpios)); |
| |
| if ((board_id() != 0) && (board_id() != BOARD_ID_UNKNOWN)) |
| return val; |
| |
| /* |
| * For boards with id 0 or unknown, memory straps 3 and 4 are |
| * incorrectly stuffed in hardware. This is a workaround for these |
| * boards to override memory strap 3 to 0 and 4 to 1. |
| */ |
| switch (val) { |
| case 3: |
| val = 0; |
| break; |
| case 4: |
| val = 1; |
| break; |
| } |
| |
| return val; |
| } |