kernel/3.3: move OHCI and EHCI platform drivers to generic

These patches are not specific to bcm47xx and will be used on other
platforms as well.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 34501

1 files changed, 271 insertions, 0 deletions

diff --git a/target/linux/generic/patches-3.3/081-USB-OHCI-Add-a-generic-platform-device-driver.patch b/target/linux/generic/patches-3.3/081-USB-OHCI-Add-a-generic-platform-device-driver.patch
new file mode 100644
index 0000000..8ea102f
--- /dev/null
+++ b/target/linux/generic/patches-3.3/081-USB-OHCI-Add-a-generic-platform-device-driver.patch
@@ -0,0 +1,271 @@
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -393,6 +393,16 @@ config USB_CNS3XXX_OHCI
+ 	  Enable support for the CNS3XXX SOC's on-chip OHCI controller.
+ 	  It is needed for low-speed USB 1.0 device support.
+ 
++config USB_OHCI_HCD_PLATFORM
++	bool "Generic OHCI driver for a platform device"
++	depends on USB_OHCI_HCD && EXPERIMENTAL
++	default n
++	---help---
++	  Adds an OHCI host driver for a generic platform device, which
++	  provieds a memory space and an irq.
++
++	  If unsure, say N.
++
+ config USB_OHCI_BIG_ENDIAN_DESC
+ 	bool
+ 	depends on USB_OHCI_HCD
+--- a/drivers/usb/host/ohci-hcd.c
++++ b/drivers/usb/host/ohci-hcd.c
+@@ -1121,6 +1121,11 @@ MODULE_LICENSE ("GPL");
+ #define PLATFORM_DRIVER		ohci_xls_driver
+ #endif
+ 
++#ifdef CONFIG_USB_OHCI_HCD_PLATFORM
++#include "ohci-platform.c"
++#define PLATFORM_DRIVER		ohci_platform_driver
++#endif
++
+ #if	!defined(PCI_DRIVER) &&		\
+ 	!defined(PLATFORM_DRIVER) &&	\
+ 	!defined(OMAP1_PLATFORM_DRIVER) &&	\
+--- /dev/null
++++ b/drivers/usb/host/ohci-platform.c
+@@ -0,0 +1,194 @@
++/*
++ * Generic platform ohci driver
++ *
++ * Copyright 2007 Michael Buesch <m@bues.ch>
++ * Copyright 2011-2012 Hauke Mehrtens <hauke@hauke-m.de>
++ *
++ * Derived from the OCHI-SSB driver
++ * Derived from the OHCI-PCI driver
++ * Copyright 1999 Roman Weissgaerber
++ * Copyright 2000-2002 David Brownell
++ * Copyright 1999 Linus Torvalds
++ * Copyright 1999 Gregory P. Smith
++ *
++ * Licensed under the GNU/GPL. See COPYING for details.
++ */
++#include <linux/platform_device.h>
++#include <linux/usb/ohci_pdriver.h>
++
++static int ohci_platform_reset(struct usb_hcd *hcd)
++{
++	struct platform_device *pdev = to_platform_device(hcd->self.controller);
++	struct usb_ohci_pdata *pdata = pdev->dev.platform_data;
++	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
++	int err;
++
++	if (pdata->big_endian_desc)
++		ohci->flags |= OHCI_QUIRK_BE_DESC;
++	if (pdata->big_endian_mmio)
++		ohci->flags |= OHCI_QUIRK_BE_MMIO;
++	if (pdata->no_big_frame_no)
++		ohci->flags |= OHCI_QUIRK_FRAME_NO;
++
++	ohci_hcd_init(ohci);
++	err = ohci_init(ohci);
++
++	return err;
++}
++
++static int ohci_platform_start(struct usb_hcd *hcd)
++{
++	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
++	int err;
++
++	err = ohci_run(ohci);
++	if (err < 0) {
++		ohci_err(ohci, "can't start\n");
++		ohci_stop(hcd);
++	}
++
++	return err;
++}
++
++static const struct hc_driver ohci_platform_hc_driver = {
++	.description		= hcd_name,
++	.product_desc		= "Generic Platform OHCI Controller",
++	.hcd_priv_size		= sizeof(struct ohci_hcd),
++
++	.irq			= ohci_irq,
++	.flags			= HCD_MEMORY | HCD_USB11,
++
++	.reset			= ohci_platform_reset,
++	.start			= ohci_platform_start,
++	.stop			= ohci_stop,
++	.shutdown		= ohci_shutdown,
++
++	.urb_enqueue		= ohci_urb_enqueue,
++	.urb_dequeue		= ohci_urb_dequeue,
++	.endpoint_disable	= ohci_endpoint_disable,
++
++	.get_frame_number	= ohci_get_frame,
++
++	.hub_status_data	= ohci_hub_status_data,
++	.hub_control		= ohci_hub_control,
++#ifdef	CONFIG_PM
++	.bus_suspend		= ohci_bus_suspend,
++	.bus_resume		= ohci_bus_resume,
++#endif
++
++	.start_port_reset	= ohci_start_port_reset,
++};
++
++static int __devinit ohci_platform_probe(struct platform_device *dev)
++{
++	struct usb_hcd *hcd;
++	struct resource *res_mem;
++	int irq;
++	int err = -ENOMEM;
++
++	BUG_ON(!dev->dev.platform_data);
++
++	if (usb_disabled())
++		return -ENODEV;
++
++	irq = platform_get_irq(dev, 0);
++	if (irq < 0) {
++		pr_err("no irq provieded");
++		return irq;
++	}
++
++	res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
++	if (!res_mem) {
++		pr_err("no memory recourse provieded");
++		return -ENXIO;
++	}
++
++	hcd = usb_create_hcd(&ohci_platform_hc_driver, &dev->dev,
++			dev_name(&dev->dev));
++	if (!hcd)
++		return -ENOMEM;
++
++	hcd->rsrc_start = res_mem->start;
++	hcd->rsrc_len = resource_size(res_mem);
++
++	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
++		pr_err("controller already in use");
++		err = -EBUSY;
++		goto err_put_hcd;
++	}
++
++	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
++	if (!hcd->regs)
++		goto err_release_region;
++	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
++	if (err)
++		goto err_iounmap;
++
++	platform_set_drvdata(dev, hcd);
++
++	return err;
++
++err_iounmap:
++	iounmap(hcd->regs);
++err_release_region:
++	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
++err_put_hcd:
++	usb_put_hcd(hcd);
++	return err;
++}
++
++static int __devexit ohci_platform_remove(struct platform_device *dev)
++{
++	struct usb_hcd *hcd = platform_get_drvdata(dev);
++
++	usb_remove_hcd(hcd);
++	iounmap(hcd->regs);
++	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
++	usb_put_hcd(hcd);
++	platform_set_drvdata(dev, NULL);
++
++	return 0;
++}
++
++#ifdef CONFIG_PM
++
++static int ohci_platform_suspend(struct device *dev)
++{
++	return 0;
++}
++
++static int ohci_platform_resume(struct device *dev)
++{
++	struct usb_hcd *hcd = dev_get_drvdata(dev);
++
++	ohci_finish_controller_resume(hcd);
++	return 0;
++}
++
++#else /* !CONFIG_PM */
++#define ohci_platform_suspend	NULL
++#define ohci_platform_resume	NULL
++#endif /* CONFIG_PM */
++
++static const struct platform_device_id ohci_platform_table[] = {
++	{ "ohci-platform", 0 },
++	{ }
++};
++MODULE_DEVICE_TABLE(platform, ohci_platform_table);
++
++static const struct dev_pm_ops ohci_platform_pm_ops = {
++	.suspend	= ohci_platform_suspend,
++	.resume		= ohci_platform_resume,
++};
++
++static struct platform_driver ohci_platform_driver = {
++	.id_table	= ohci_platform_table,
++	.probe		= ohci_platform_probe,
++	.remove		= __devexit_p(ohci_platform_remove),
++	.shutdown	= usb_hcd_platform_shutdown,
++	.driver		= {
++		.owner	= THIS_MODULE,
++		.name	= "ohci-platform",
++		.pm	= &ohci_platform_pm_ops,
++	}
++};
+--- /dev/null
++++ b/include/linux/usb/ohci_pdriver.h
+@@ -0,0 +1,38 @@
++/*
++ * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
++ *
++ * 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; either version 2 of the License, or (at your
++ * option) any later version.
++ *
++ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
++ */
++
++#ifndef __USB_CORE_OHCI_PDRIVER_H
++#define __USB_CORE_OHCI_PDRIVER_H
++
++/**
++ * struct usb_ohci_pdata - platform_data for generic ohci driver
++ *
++ * @big_endian_desc:	BE descriptors
++ * @big_endian_mmio:	BE registers
++ * @no_big_frame_no:	no big endian frame_no shift
++ *
++ * These are general configuration options for the OHCI controller. All of
++ * these options are activating more or less workarounds for some hardware.
++ */
++struct usb_ohci_pdata {
++	unsigned	big_endian_desc:1;
++	unsigned	big_endian_mmio:1;
++	unsigned	no_big_frame_no:1;
++};
++
++#endif /* __USB_CORE_OHCI_PDRIVER_H */