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/*
* This file is part of the LinuxBIOS project.
*
* Copyright (C) 2005 Tyan Computer
* (Written by Yinghai Lu <yinghailu@gmail.com> for Tyan Computer>
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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 <device/pci_ops.h>
#include "i82801xx.h"
static void usb_ehci_init(struct device *dev)
{
/* TODO: Is any special init really needed? */
uint32_t cmd;
printk_debug("EHCI: Setting up controller.. ");
cmd = pci_read_config32(dev, PCI_COMMAND);
pci_write_config32(dev, PCI_COMMAND,
cmd | PCI_COMMAND_MASTER);
printk_debug("done.\n");
}
static void usb_ehci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
{
uint8_t access_cntl;
access_cntl = pci_read_config8(dev, 0x80);
/* Enable writes to protected registers */
pci_write_config8(dev, 0x80, access_cntl | 1);
/* Write the subsystem vendor and device id */
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,
.enable = i82801xx_enable,
.ops_pci = &lops_pci,
};
/* i82801db and i82801dbm */
static struct pci_driver i82801db_usb_ehci __pci_driver = {
.ops = &usb_ehci_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x24cd,
};
/* i82801eb and i82801er */
static struct pci_driver i82801ex_usb_ehci __pci_driver = {
.ops = &usb_ehci_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x24dd,
};
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