e2227a23a7
Also relocate and split header files, there is some interest for EHCI debug support without PCI. Change-Id: Ibe91730eb72dfe0634fb38bdd184043495e2fb08 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5129 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2013 Google Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of
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* the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <console/console.h>
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#include <device/device.h>
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#include <device/pci.h>
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#include <device/pci_ids.h>
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#include "pch.h"
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#include <device/pci_ehci.h>
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#include <arch/io.h>
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static void usb_xhci_init(struct device *dev)
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{
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u32 reg32;
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printk(BIOS_DEBUG, "XHCI: Setting up controller.. ");
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/* lock overcurrent map */
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reg32 = pci_read_config32(dev, 0x44);
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reg32 |= 1;
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pci_write_config32(dev, 0x44, reg32);
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/* Enable clock gating */
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reg32 = pci_read_config32(dev, 0x40);
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reg32 &= ~((1 << 20) | (1 << 21));
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reg32 |= (1 << 19) | (1 << 18) | (1 << 17);
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reg32 |= (1 << 10) | (1 << 9) | (1 << 8);
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reg32 |= (1 << 31); /* lock */
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pci_write_config32(dev, 0x40, reg32);
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printk(BIOS_DEBUG, "done.\n");
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}
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static void xhci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
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{
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if (!vendor || !device) {
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pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
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pci_read_config32(dev, PCI_VENDOR_ID));
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} else {
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pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
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((device & 0xffff) << 16) | (vendor & 0xffff));
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}
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}
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static struct pci_operations xhci_pci_ops = {
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.set_subsystem = xhci_set_subsystem,
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};
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static struct device_operations usb_xhci_ops = {
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.read_resources = pci_dev_read_resources,
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.set_resources = pci_dev_set_resources,
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.enable_resources = pci_dev_enable_resources,
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.init = usb_xhci_init,
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.scan_bus = 0,
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.ops_pci = &xhci_pci_ops,
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};
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static const unsigned short pci_device_ids[] = { 0x1e31, 0 };
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static const struct pci_driver pch_usb_xhci __pci_driver = {
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.ops = &usb_xhci_ops,
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.vendor = PCI_VENDOR_ID_INTEL,
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.devices = pci_device_ids,
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};
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