USB: EHCI big endian data structures support (for 440EPx)

#define	PS3_SYSTEM_BUS_DRIVER	ps3_ehci_sb_driver

#define	PS3_SYSTEM_BUS_DRIVER	ps3_ehci_sb_driver

#endif

#endif

#ifdef CONFIG_440EPX

#include "ehci-ppc-soc.c"

#define	PLATFORM_DRIVER		ehci_ppc_soc_driver

#endif

#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \

#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \

    !defined(PS3_SYSTEM_BUS_DRIVER)

    !defined(PS3_SYSTEM_BUS_DRIVER)

#error "missing bus glue for ehci-hcd"

#error "missing bus glue for ehci-hcd"

/*

 * EHCI HCD (Host Controller Driver) for USB.

 *

 * (C) Copyright 2006-2007 Stefan Roese <sr@denx.de>, DENX Software Engineering

 *

 * Bus Glue for PPC On-Chip EHCI driver

 * Tested on AMCC 440EPx

 *

 * Based on "ehci-au12xx.c" by David Brownell <dbrownell@users.sourceforge.net>

 *

 * This file is licenced under the GPL.

 */

#include <linux/platform_device.h>

extern int usb_disabled(void);

/**

 * usb_ehci_ppc_soc_probe - initialize PPC-SoC-based HCDs

 * Context: !in_interrupt()

 *

 * Allocates basic resources for this USB host controller, and

 * then invokes the start() method for the HCD associated with it

 * through the hotplug entry's driver_data.

 *

 */

int usb_ehci_ppc_soc_probe(const struct hc_driver *driver,

			   struct usb_hcd **hcd_out,

			   struct platform_device *dev)

{

	int retval;

	struct usb_hcd *hcd;

	struct ehci_hcd *ehci;

	if (dev->resource[1].flags != IORESOURCE_IRQ) {

		pr_debug("resource[1] is not IORESOURCE_IRQ");

		retval = -ENOMEM;

	}

	hcd = usb_create_hcd(driver, &dev->dev, "PPC-SOC EHCI");

	if (!hcd)

		return -ENOMEM;

	hcd->rsrc_start = dev->resource[0].start;

	hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1;

	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {

		pr_debug("request_mem_region failed");

		retval = -EBUSY;

		goto err1;

	}

	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);

	if (!hcd->regs) {

		pr_debug("ioremap failed");

		retval = -ENOMEM;

		goto err2;

	}

	ehci = hcd_to_ehci(hcd);

	ehci->big_endian_mmio = 1;

	ehci->big_endian_desc = 1;

	ehci->caps = hcd->regs;

	ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));

	/* cache this readonly data; minimize chip reads */

	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);

#if defined(CONFIG_440EPX)

	/*

	 * 440EPx Errata USBH_3

	 * Fix: Enable Break Memory Transfer (BMT) in INSNREG3

	 */

	out_be32((void *)((ulong)(&ehci->regs->command) + 0x8c), (1 << 0));

	ehci_dbg(ehci, "Break Memory Transfer (BMT) has beed enabled!\n");

#endif

	retval = usb_add_hcd(hcd, dev->resource[1].start, IRQF_DISABLED);

	if (retval == 0)

		return retval;

	iounmap(hcd->regs);

err2:

	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);

err1:

	usb_put_hcd(hcd);

	return retval;

}

/* may be called without controller electrically present */

/* may be called with controller, bus, and devices active */

/**

 * usb_ehci_hcd_ppc_soc_remove - shutdown processing for PPC-SoC-based HCDs

 * @dev: USB Host Controller being removed

 * Context: !in_interrupt()

 *

 * Reverses the effect of usb_ehci_hcd_ppc_soc_probe(), first invoking

 * the HCD's stop() method.  It is always called from a thread

 * context, normally "rmmod", "apmd", or something similar.

 *

 */

void usb_ehci_ppc_soc_remove(struct usb_hcd *hcd, struct platform_device *dev)

{

	usb_remove_hcd(hcd);

	iounmap(hcd->regs);

	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);

	usb_put_hcd(hcd);

}

static const struct hc_driver ehci_ppc_soc_hc_driver = {

	.description = hcd_name,

	.product_desc = "PPC-SOC EHCI",

	.hcd_priv_size = sizeof(struct ehci_hcd),

	/*

	 * generic hardware linkage

	 */

	.irq = ehci_irq,

	.flags = HCD_MEMORY | HCD_USB2,

	/*

	 * basic lifecycle operations

	 */

	.reset = ehci_init,

	.start = ehci_run,

	.stop = ehci_stop,

	.shutdown = ehci_shutdown,

	/*

	 * managing i/o requests and associated device resources

	 */

	.urb_enqueue = ehci_urb_enqueue,

	.urb_dequeue = ehci_urb_dequeue,

	.endpoint_disable = ehci_endpoint_disable,

	/*

	 * scheduling support

	 */

	.get_frame_number = ehci_get_frame,

	/*

	 * root hub support

	 */

	.hub_status_data = ehci_hub_status_data,

	.hub_control = ehci_hub_control,

#ifdef	CONFIG_PM

	.hub_suspend = ehci_hub_suspend,

	.hub_resume = ehci_hub_resume,

#endif

};

static int ehci_hcd_ppc_soc_drv_probe(struct platform_device *pdev)

{

	struct usb_hcd *hcd = NULL;

	int ret;

	pr_debug("In ehci_hcd_ppc_soc_drv_probe\n");

	if (usb_disabled())

		return -ENODEV;

	ret = usb_ehci_ppc_soc_probe(&ehci_ppc_soc_hc_driver, &hcd, pdev);

	return ret;

}

static int ehci_hcd_ppc_soc_drv_remove(struct platform_device *pdev)

{

	struct usb_hcd *hcd = platform_get_drvdata(pdev);

	usb_ehci_ppc_soc_remove(hcd, pdev);

	return 0;

}

MODULE_ALIAS("ppc-soc-ehci");

static struct platform_driver ehci_ppc_soc_driver = {

	.probe = ehci_hcd_ppc_soc_drv_probe,

	.remove = ehci_hcd_ppc_soc_drv_remove,

	.shutdown = usb_hcd_platform_shutdown,

	.driver = {

		.name = "ppc-soc-ehci",

		.bus = &platform_bus_type

	}

};