diff options
Diffstat (limited to 'src/northbridge/via/cx700/cx700_usb.c')
-rw-r--r-- | src/northbridge/via/cx700/cx700_usb.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/northbridge/via/cx700/cx700_usb.c b/src/northbridge/via/cx700/cx700_usb.c new file mode 100644 index 0000000000..b2dc482df3 --- /dev/null +++ b/src/northbridge/via/cx700/cx700_usb.c @@ -0,0 +1,56 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2009 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> + +static void usb_init(struct device *dev) +{ + u32 reg32; + u8 reg8; + + /* USB Specification says the device must be Bus Master */ + printk_debug("UHCI: Setting up controller.. "); + + reg32 = pci_read_config32(dev, PCI_COMMAND); + pci_write_config32(dev, PCI_COMMAND, reg32 | PCI_COMMAND_MASTER); + + reg8 = pci_read_config8(dev, 0xca); + reg8 |= (1 << 0); + pci_write_config8(dev, 0xca, reg8); + + printk_debug("done.\n"); +} + +static struct device_operations usb_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = usb_init, + .enable = 0, + .ops_pci = 0, +}; + +static const struct pci_driver via_usb_driver __pci_driver = { + .ops = &usb_ops, + .vendor = PCI_VENDOR_ID_VIA, + .device = 0x3038, +}; |