| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2019 Google LLC |
| * |
| * 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_device.h> |
| #include <arch/acpigen.h> |
| #include <console/console.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include "chip.h" |
| |
| static void ish_fill_ssdt_generator(struct device *dev) |
| { |
| struct drivers_intel_ish_config *config = dev->chip_info; |
| struct device *root = dev->bus->dev; |
| struct acpi_dp *dsd; |
| |
| if (!dev->enabled || !config || !config->firmware_name) |
| return; |
| |
| acpigen_write_scope(acpi_device_path(root)); |
| |
| dsd = acpi_dp_new_table("_DSD"); |
| acpi_dp_add_string(dsd, "firmware-name", config->firmware_name); |
| acpi_dp_write(dsd); |
| |
| acpigen_pop_len(); /* Scope */ |
| |
| printk(BIOS_INFO, "%s: Set firmware-name: %s\n", |
| acpi_device_path(root), config->firmware_name); |
| } |
| |
| static struct device_operations intel_ish_ops = { |
| .read_resources = DEVICE_NOOP, |
| .set_resources = DEVICE_NOOP, |
| .enable_resources = DEVICE_NOOP, |
| .acpi_fill_ssdt_generator = ish_fill_ssdt_generator, |
| }; |
| |
| static void intel_ish_enable(struct device *dev) |
| { |
| /* This dev is a generic device that is a child to the ISH PCI device */ |
| dev->ops = &intel_ish_ops; |
| } |
| |
| /* Copy of default_pci_ops_dev with scan_bus addition */ |
| static const struct device_operations pci_ish_device_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = pci_dev_init, |
| .scan_bus = &scan_generic_bus, /* Non-default */ |
| .ops_pci = &pci_dev_ops_pci, |
| }; |
| |
| static const unsigned short pci_device_ids[] = { |
| PCI_DEVICE_ID_INTEL_CNL_ISHB, |
| 0 |
| }; |
| |
| static const struct pci_driver ish_intel_driver __pci_driver = { |
| .ops = &pci_ish_device_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .devices = pci_device_ids, |
| }; |
| |
| struct chip_operations drivers_intel_ish_ops = { |
| CHIP_NAME("Intel ISH Chip") |
| .enable_dev = intel_ish_enable, |
| }; |