| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2008-2009 coresystems GmbH |
| * |
| * 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 "i82801gx.h" |
| #if CONFIG_USBDEBUG_DIRECT |
| #include <usbdebug_direct.h> |
| #endif |
| #include <arch/io.h> |
| |
| static void usb_ehci_init(struct device *dev) |
| { |
| struct resource *res; |
| u32 base; |
| u32 reg32; |
| u8 reg8; |
| |
| printk_debug("EHCI: Setting up controller.. "); |
| reg32 = pci_read_config32(dev, PCI_COMMAND); |
| reg32 |= PCI_COMMAND_MASTER; |
| reg32 |= PCI_COMMAND_SERR; |
| pci_write_config32(dev, PCI_COMMAND, reg32); |
| |
| reg32 = pci_read_config32(dev, 0xdc); |
| reg32 |= (1 << 31) | (1 << 27); |
| pci_write_config32(dev, 0xdc, reg32); |
| |
| reg32 = pci_read_config32(dev, 0xfc); |
| reg32 &= ~(3 << 2); |
| reg32 |= (2 << 2) | (1 << 29) | (1 << 17); |
| pci_write_config32(dev, 0xfc, reg32); |
| |
| /* Clear any pending port changes */ |
| res = find_resource(dev, 0x10); |
| base = res->base; |
| reg32 = read32(base + 0x24) | (1 << 2); |
| write32(base + 0x24, reg32); |
| |
| /* workaround */ |
| reg8 = pci_read_config8(dev, 0x84); |
| reg8 |= (1 << 4); |
| pci_write_config8(dev, 0x84, reg8); |
| |
| printk_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 void usb_ehci_set_resources(struct device *dev) |
| { |
| #if CONFIG_USBDEBUG_DIRECT |
| struct resource *res; |
| u32 base; |
| u32 usb_debug; |
| |
| usb_debug = get_ehci_debug(); |
| set_ehci_debug(0); |
| #endif |
| pci_dev_set_resources(dev); |
| |
| #if CONFIG_USBDEBUG_DIRECT |
| res = find_resource(dev, 0x10); |
| set_ehci_debug(usb_debug); |
| if (!res) return; |
| base = res->base; |
| set_ehci_base(base); |
| report_resource_stored(dev, res, ""); |
| #endif |
| } |
| |
| |
| |
| 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 = usb_ehci_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = usb_ehci_init, |
| .scan_bus = 0, |
| .enable = i82801gx_enable, |
| .ops_pci = &lops_pci, |
| }; |
| |
| /* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */ |
| static const struct pci_driver i82801gx_usb_ehci __pci_driver = { |
| .ops = &usb_ehci_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .device = 0x27cc, |
| }; |