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/*
* 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,
PCI_DEVICE_ID_INTEL_CML_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,
};
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