/* * OHCI HCD (Host Controller Driver) for USB. * * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> * (C) Copyright 2002 Hewlett-Packard Company * (C) Copyright 2006 Sylvain Munaut <tnt@246tNt.com> * * Bus glue for OHCI HC on the of_platform bus * * Modified for of_platform bus from ohci-sa1111.c * * This file is licenced under the GPL. */#include <linux/signal.h>#include <asm/of_platform.h>#include <asm/prom.h>static int __devinitohci_ppc_of_start(struct usb_hcd *hcd){	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);	int		ret;	if ((ret = ohci_init(ohci)) < 0)		return ret;	if ((ret = ohci_run(ohci)) < 0) {		err("can't start %s", ohci_to_hcd(ohci)->self.bus_name);		ohci_stop(hcd);		return ret;	}	return 0;}static const struct hc_driver ohci_ppc_of_hc_driver = {	.description =		hcd_name,	.product_desc =		"OF OHCI",	.hcd_priv_size =	sizeof(struct ohci_hcd),	/*	 * generic hardware linkage	 */	.irq =			ohci_irq,	.flags =		HCD_USB11 | HCD_MEMORY,	/*	 * basic lifecycle operations	 */	.start =		ohci_ppc_of_start,	.stop =			ohci_stop,	.shutdown = 		ohci_shutdown,	/*	 * managing i/o requests and associated device resources	 */	.urb_enqueue =		ohci_urb_enqueue,	.urb_dequeue =		ohci_urb_dequeue,	.endpoint_disable =	ohci_endpoint_disable,	/*	 * scheduling support	 */	.get_frame_number =	ohci_get_frame,	/*	 * root hub support	 */	.hub_status_data =	ohci_hub_status_data,	.hub_control =		ohci_hub_control,	.hub_irq_enable =	ohci_rhsc_enable,#ifdef	CONFIG_PM	.bus_suspend =		ohci_bus_suspend,	.bus_resume =		ohci_bus_resume,#endif	.start_port_reset =	ohci_start_port_reset,};static int __devinitohci_hcd_ppc_of_probe(struct of_device *op, const struct of_device_id *match){	struct device_node *dn = op->node;	struct usb_hcd *hcd;	struct ohci_hcd	*ohci;	struct resource res;	int irq;	int rv;	int is_bigendian;	if (usb_disabled())		return -ENODEV;	is_bigendian =		device_is_compatible(dn, "ohci-bigendian") ||		device_is_compatible(dn, "ohci-be");	dev_dbg(&op->dev, "initializing PPC-OF USB Controller\n");	rv = of_address_to_resource(dn, 0, &res);	if (rv)		return rv;	hcd = usb_create_hcd(&ohci_ppc_of_hc_driver, &op->dev, "PPC-OF USB");	if (!hcd)		return -ENOMEM;	hcd->rsrc_start = res.start;	hcd->rsrc_len = res.end - res.start + 1;	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {		printk(KERN_ERR __FILE__ ": request_mem_region failed\n");		rv = -EBUSY;		goto err_rmr;	}	irq = irq_of_parse_and_map(dn, 0);	if (irq == NO_IRQ) {		printk(KERN_ERR __FILE__ ": irq_of_parse_and_map failed\n");		rv = -EBUSY;		goto err_irq;	}	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);	if (!hcd->regs) {		printk(KERN_ERR __FILE__ ": ioremap failed\n");		rv = -ENOMEM;		goto err_ioremap;	}	ohci = hcd_to_ohci(hcd);	if (is_bigendian)		ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC;	ohci_hcd_init(ohci);	rv = usb_add_hcd(hcd, irq, 0);	if (rv == 0)		return 0;	iounmap(hcd->regs);err_ioremap:	irq_dispose_mapping(irq);err_irq:	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);err_rmr: 	usb_put_hcd(hcd);	return rv;}static int ohci_hcd_ppc_of_remove(struct of_device *op){	struct usb_hcd *hcd = dev_get_drvdata(&op->dev);	dev_set_drvdata(&op->dev, NULL);	dev_dbg(&op->dev, "stopping PPC-OF USB Controller\n");	usb_remove_hcd(hcd);	iounmap(hcd->regs);	irq_dispose_mapping(hcd->irq);	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);	usb_put_hcd(hcd);	return 0;}static int ohci_hcd_ppc_of_shutdown(struct of_device *op){	struct usb_hcd *hcd = dev_get_drvdata(&op->dev);        if (hcd->driver->shutdown)                hcd->driver->shutdown(hcd);	return 0;}static struct of_device_id ohci_hcd_ppc_of_match[] = {#ifdef CONFIG_USB_OHCI_HCD_PPC_OF_BE	{		.name = "usb",		.compatible = "ohci-bigendian",	},	{		.name = "usb",		.compatible = "ohci-be",	},#endif#ifdef CONFIG_USB_OHCI_HCD_PPC_OF_LE	{		.name = "usb",		.compatible = "ohci-littledian",	},	{		.name = "usb",		.compatible = "ohci-le",	},#endif	{},};MODULE_DEVICE_TABLE(of, ohci_hcd_ppc_of_match);#if	!defined(CONFIG_USB_OHCI_HCD_PPC_OF_BE) && \	!defined(CONFIG_USB_OHCI_HCD_PPC_OF_LE)#error "No endianess selected for ppc-of-ohci"#endifstatic struct of_platform_driver ohci_hcd_ppc_of_driver = {	.name		= "ppc-of-ohci",	.match_table	= ohci_hcd_ppc_of_match,	.probe		= ohci_hcd_ppc_of_probe,	.remove		= ohci_hcd_ppc_of_remove,	.shutdown 	= ohci_hcd_ppc_of_shutdown,#ifdef CONFIG_PM	/*.suspend	= ohci_hcd_ppc_soc_drv_suspend,*/	/*.resume	= ohci_hcd_ppc_soc_drv_resume,*/#endif	.driver		= {		.name	= "ppc-of-ohci",		.owner	= THIS_MODULE,	},};