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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Arista Networks, 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 <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <soc/intel/fsp_broadwell_de/chip.h>
#define DEVCTL2 0xb8
static void iou_init(struct device *dev)
{
const config_t *config = config_of(dev);
u16 devctl2;
/* pcie completion timeout
EDS Vol 2, Section 7.2.54 */
devctl2 = pci_read_config16(dev, DEVCTL2);
devctl2 = (devctl2 & ~0xf) | (config->pcie_compltoval & 0xf);
pci_write_config16(dev, DEVCTL2, devctl2);
}
static struct device_operations iou_ops = {
.read_resources = pci_bus_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_bus_enable_resources,
.scan_bus = pci_scan_bridge,
.reset_bus = pci_bus_reset,
.init = iou_init,
};
static const unsigned short iou_device_ids[] = {
0x6f02, 0x6f08, 0 };
static const struct pci_driver iou_driver __pci_driver = {
.ops = &iou_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.devices = iou_device_ids,
};
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