/* SPDX-License-Identifier: GPL-2.0-only */ #include <acpi/acpi.h> #include <baseboard/variants.h> #include <boardid.h> #include <console/console.h> #include <device/device.h> #include <ec/ec.h> #include <gpio.h> #include <nhlt.h> #include <smbios.h> #include <soc/gpio.h> #include <soc/nhlt.h> #include <string.h> #include <variant/ec.h> #include <variant/gpio.h> /* override specific gpio by sku id */ const struct pad_config __weak *variant_sku_gpio_table(size_t *num) { *num = 0; return NULL; } static void mainboard_init(void *chip_info) { int boardid; const struct pad_config *pads; size_t num; boardid = board_id(); printk(BIOS_INFO, "Board ID: %d\n", boardid); pads = variant_gpio_table(&num); gpio_configure_pads(pads, num); pads = variant_sku_gpio_table(&num); gpio_configure_pads(pads, num); mainboard_ec_init(); variant_board_ec_set_skuid(); } /* * There are 2 pins on reef-like boards that can be used for SKU'ing * board differences. They each have optional stuffing for a pullup and * a pulldown. This way we can generate 9 different values with the * 2 pins. */ uint8_t sku_strapping_value(void) { gpio_t board_sku_gpios[] = { [1] = GPIO_17, [0] = GPIO_16, }; const size_t num = ARRAY_SIZE(board_sku_gpios); return gpio_base3_value(board_sku_gpios, num); } uint8_t __weak variant_board_sku(void) { static int board_sku_num = -1; if (board_sku_num < 0) board_sku_num = sku_strapping_value(); return board_sku_num; } /* Set variant board sku to ec by sku id */ void __weak variant_board_ec_set_skuid(void) { } const char *smbios_system_sku(void) { static char sku_str[7]; /* sku{0..255} */ snprintf(sku_str, sizeof(sku_str), "sku%d", variant_board_sku()); return sku_str; } void __weak variant_nhlt_oem_overrides(const char **oem_id, const char **oem_table_id, uint32_t *oem_revision) { *oem_id = "reef"; *oem_table_id = CONFIG_VARIANT_DIR; *oem_revision = variant_board_sku(); } static unsigned long mainboard_write_acpi_tables( const struct device *device, unsigned long current, acpi_rsdp_t *rsdp) { uintptr_t start_addr; uintptr_t end_addr; struct nhlt *nhlt; const char *oem_id = NULL; const char *oem_table_id = NULL; uint32_t oem_revision = 0; start_addr = current; nhlt = nhlt_init(); if (nhlt == NULL) return start_addr; variant_nhlt_init(nhlt); variant_nhlt_oem_overrides(&oem_id, &oem_table_id, &oem_revision); end_addr = nhlt_soc_serialize_oem_overrides(nhlt, start_addr, oem_id, oem_table_id, oem_revision); if (end_addr != start_addr) acpi_add_table(rsdp, (void *)start_addr); return end_addr; } static void mainboard_enable(struct device *dev) { dev->ops->write_acpi_tables = mainboard_write_acpi_tables; } struct chip_operations mainboard_ops = { .init = mainboard_init, .enable_dev = mainboard_enable, };