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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2010 coresystems GmbH
* Copyright (C) 2009-2010 iWave Systems
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <arch/io.h>
static void usb_ehci_init(struct device *dev)
{
u32 reg32;
printk(BIOS_DEBUG, "EHCI: Setting up controller.. ");
reg32 = pci_read_config32(dev, PCI_COMMAND);
reg32 |= PCI_COMMAND_MASTER;
pci_write_config32(dev, PCI_COMMAND, reg32);
/*Disable clock gating
reg32 = pci_read_config32(dev, 0xc0);
reg32 |= (1 << 2);
pci_write_config32(dev, 0xc0, reg32);*/
//pci_write_config32(dev, 0x3c, 0x17);
reg32 = pci_read_config32(dev, 0xFC);
reg32 |= (1 << 28);
pci_write_config32(dev, 0xFC, reg32);
reg32 = pci_read_config32(dev, 0x4);
printk(BIOS_DEBUG, "PCI_COMMAND %x.\n",reg32);
reg32 = pci_read_config32(dev, 0x20);
printk(BIOS_DEBUG, "PCI_BASE %x.\n",reg32);
reg32 = pci_read_config32(dev, 0xC0);
printk(BIOS_DEBUG, "PCI_FD %x.\n",reg32);
printk(BIOS_DEBUG, "done.\n");
}
static void usb_ehci_set_subsystem(device_t dev, unsigned vendor,
unsigned device)
{
u8 access_cntl;
access_cntl = pci_read_config8(dev, 0x80);
/* Enable writes to protected registers. */
pci_write_config8(dev, 0x80, access_cntl | 1);
if (!vendor || !device) {
pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
pci_read_config32(dev, PCI_VENDOR_ID));
} else {
pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
((device & 0xffff) << 16) | (vendor & 0xffff));
}
/* Restore protection. */
pci_write_config8(dev, 0x80, access_cntl);
}
static struct pci_operations lops_pci = {
.set_subsystem = &usb_ehci_set_subsystem,
};
static struct device_operations usb_ehci_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = usb_ehci_init,
.scan_bus = 0,
.ops_pci = &lops_pci,
};
static const struct pci_driver sch_usb_ehci __pci_driver = {
.ops = &usb_ehci_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x8117,
};
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