124 lines
2.9 KiB
C
124 lines
2.9 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright 2016 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <arch/acpi.h>
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#include <baseboard/variants.h>
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#include <boardid.h>
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#include <console/console.h>
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#include <device/device.h>
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#include <ec/ec.h>
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#include <gpio.h>
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#include <nhlt.h>
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#include <smbios.h>
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#include <soc/gpio.h>
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#include <soc/nhlt.h>
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#include <string.h>
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#include <vendorcode/google/chromeos/chromeos.h>
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#include <variant/ec.h>
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#include <variant/gpio.h>
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static void mainboard_init(void *chip_info)
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{
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int boardid;
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const struct pad_config *pads;
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size_t num;
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boardid = board_id();
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printk(BIOS_INFO, "Board ID: %d\n", boardid);
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pads = variant_gpio_table(&num);
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gpio_configure_pads(pads, num);
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mainboard_ec_init();
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}
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/*
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* There are 2 pins on reef-like boards that can be used for SKU'ing
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* board differences. They each have optional stuffing for a pullup and
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* a pulldown. This way we can generate 9 different values with the
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* 2 pins.
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*/
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static int board_sku(void)
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{
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static int board_sku_num = -1;
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gpio_t board_sku_gpios[] = {
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[1] = GPIO_17, [0] = GPIO_16,
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};
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const size_t num = ARRAY_SIZE(board_sku_gpios);
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if (board_sku_num < 0)
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board_sku_num = gpio_base3_value(board_sku_gpios, num);
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return board_sku_num;
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}
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const char *smbios_mainboard_sku(void)
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{
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static char sku_str[5]; /* sku[0-8] */
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snprintf(sku_str, sizeof(sku_str), "sku%d", board_sku());
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return sku_str;
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}
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void __attribute__((weak)) variant_nhlt_oem_overrides(const char **oem_id,
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const char **oem_table_id,
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uint32_t *oem_revision)
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{
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*oem_id = "reef";
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*oem_table_id = CONFIG_VARIANT_DIR;
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*oem_revision = board_sku();
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}
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static unsigned long mainboard_write_acpi_tables(
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device_t device, unsigned long current, acpi_rsdp_t *rsdp)
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{
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uintptr_t start_addr;
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uintptr_t end_addr;
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struct nhlt *nhlt;
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const char *oem_id = NULL;
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const char *oem_table_id = NULL;
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uint32_t oem_revision = 0;
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start_addr = current;
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nhlt = nhlt_init();
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if (nhlt == NULL)
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return start_addr;
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variant_nhlt_init(nhlt);
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variant_nhlt_oem_overrides(&oem_id, &oem_table_id, &oem_revision);
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end_addr = nhlt_soc_serialize_oem_overrides(nhlt, start_addr,
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oem_id, oem_table_id, oem_revision);
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if (end_addr != start_addr)
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acpi_add_table(rsdp, (void *)start_addr);
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return end_addr;
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}
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static void mainboard_enable(device_t dev)
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{
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dev->ops->write_acpi_tables = mainboard_write_acpi_tables;
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dev->ops->acpi_inject_dsdt_generator = chromeos_dsdt_generator;
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}
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struct chip_operations mainboard_ops = {
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.init = mainboard_init,
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.enable_dev = mainboard_enable,
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};
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