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Diffstat (limited to 'src/mainboard/intel/leafhill/mainboard.c')
-rw-r--r-- | src/mainboard/intel/leafhill/mainboard.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/mainboard/intel/leafhill/mainboard.c b/src/mainboard/intel/leafhill/mainboard.c new file mode 100644 index 0000000000..702269c135 --- /dev/null +++ b/src/mainboard/intel/leafhill/mainboard.c @@ -0,0 +1,123 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2016 Google 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 <arch/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 <vendorcode/google/chromeos/chromeos.h> +#include <variant/ec.h> +#include <variant/gpio.h> + +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); + + mainboard_ec_init(); +} + +/* + * 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. + */ +static int board_sku(void) +{ + static int board_sku_num = -1; + gpio_t board_sku_gpios[] = { + [1] = GPIO_17, [0] = GPIO_16, + }; + const size_t num = ARRAY_SIZE(board_sku_gpios); + + if (board_sku_num < 0) + board_sku_num = gpio_base3_value(board_sku_gpios, num); + + return board_sku_num; +} + +const char *smbios_mainboard_sku(void) +{ + static char sku_str[5]; /* sku[0-8] */ + + snprintf(sku_str, sizeof(sku_str), "sku%d", board_sku()); + + return sku_str; +} + +void __attribute__((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 = board_sku(); +} + +static unsigned long mainboard_write_acpi_tables( + device_t 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(device_t dev) +{ + dev->ops->write_acpi_tables = mainboard_write_acpi_tables; + dev->ops->acpi_inject_dsdt_generator = chromeos_dsdt_generator; +} + +struct chip_operations mainboard_ops = { + .init = mainboard_init, + .enable_dev = mainboard_enable, +}; |