brcm47xx: add support for kernel 3.2

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29756 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 265 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-3.2/0031-USB-EHCI-Add-a-generic-platform-device-driver.patch b/target/linux/brcm47xx/patches-3.2/0031-USB-EHCI-Add-a-generic-platform-device-driver.patch
new file mode 100644
index 0000000000..8cc0f07776
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.2/0031-USB-EHCI-Add-a-generic-platform-device-driver.patch
@@ -0,0 +1,265 @@
+From 2ade1c32109d2f17fdfc0b414411d4ee7f828706 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sat, 26 Nov 2011 21:28:56 +0100
+Subject: [PATCH 18/30] USB: EHCI: Add a generic platform device driver
+
+This adds a generic driver for platform devices. It works like the PCI
+driver and is based on it. This is for devices which do not have an own
+bus but their EHCI controller works like a PCI controller. It will be
+used for the Broadcom bcma and ssb USB EHCI controller.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ drivers/usb/host/Kconfig         |   10 ++
+ drivers/usb/host/ehci-hcd.c      |    5 +
+ drivers/usb/host/ehci-platform.c |  211 ++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 226 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/usb/host/ehci-platform.c
+
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -388,6 +388,16 @@ config USB_OHCI_HCD_PLATFORM
+ 
+ 	  If unsure, say N.
+ 
++config USB_EHCI_HCD_PLATFORM
++	bool "Generic EHCI driver for a platform device"
++	depends on USB_EHCI_HCD && EXPERIMENTAL
++	default n
++	---help---
++	  Adds an EHCI 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/ehci-hcd.c
++++ b/drivers/usb/host/ehci-hcd.c
+@@ -1329,6 +1329,11 @@ MODULE_LICENSE ("GPL");
+ #define PLATFORM_DRIVER		ehci_xls_driver
+ #endif
+ 
++#ifdef CONFIG_USB_EHCI_HCD_PLATFORM
++#include "ehci-platform.c"
++#define PLATFORM_DRIVER		ehci_platform_driver
++#endif
++
+ #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
+     !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
+     !defined(XILINX_OF_PLATFORM_DRIVER)
+--- /dev/null
++++ b/drivers/usb/host/ehci-platform.c
+@@ -0,0 +1,211 @@
++/*
++ * Generic platform ehci driver
++ *
++ * Copyright 2007 Steven Brown <sbrown@cortland.com>
++ * Copyright 2010-2011 Hauke Mehrtens <hauke@hauke-m.de>
++ *
++ * Derived from the ohci-ssb driver
++ * Copyright 2007 Michael Buesch <mb@bu3sch.de>
++ *
++ * Derived from the EHCI-PCI driver
++ * Copyright (c) 2000-2004 by David Brownell
++ *
++ * 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>
++
++static int ehci_platform_reset(struct usb_hcd *hcd)
++{
++	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
++	int retval;
++
++	ehci->caps = hcd->regs;
++	ehci->regs = hcd->regs +
++		HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));
++
++	dbg_hcs_params(ehci, "reset");
++	dbg_hcc_params(ehci, "reset");
++
++	/* cache this readonly data; minimize chip reads */
++	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
++
++	retval = ehci_halt(ehci);
++	if (retval)
++		return retval;
++
++	/* data structure init */
++	retval = ehci_init(hcd);
++	if (retval)
++		return retval;
++
++	ehci_reset(ehci);
++
++	ehci_port_power(ehci, 1);
++
++	return retval;
++}
++
++static const struct hc_driver ehci_platform_hc_driver = {
++	.description		= "platform-usb-ehci",
++	.product_desc		= "Generic Platform EHCI Controller",
++	.hcd_priv_size		= sizeof(struct ehci_hcd),
++
++	.irq			= ehci_irq,
++	.flags			= HCD_MEMORY | HCD_USB2,
++
++	.reset			= ehci_platform_reset,
++	.start			= ehci_run,
++	.stop			= ehci_stop,
++	.shutdown		= ehci_shutdown,
++
++	.urb_enqueue		= ehci_urb_enqueue,
++	.urb_dequeue		= ehci_urb_dequeue,
++	.endpoint_disable	= ehci_endpoint_disable,
++	.endpoint_reset		= ehci_endpoint_reset,
++
++	.get_frame_number	= ehci_get_frame,
++
++	.hub_status_data	= ehci_hub_status_data,
++	.hub_control		= ehci_hub_control,
++#if defined(CONFIG_PM)
++	.bus_suspend		= ehci_bus_suspend,
++	.bus_resume		= ehci_bus_resume,
++#endif
++	.relinquish_port	= ehci_relinquish_port,
++	.port_handed_over	= ehci_port_handed_over,
++
++	.update_device		= ehci_update_device,
++
++	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
++};
++
++static int ehci_platform_attach(struct platform_device *dev)
++{
++	struct usb_hcd *hcd;
++	struct resource *res_irq, *res_mem;
++	int err = -ENOMEM;
++
++	hcd = usb_create_hcd(&ehci_platform_hc_driver, &dev->dev,
++			     dev_name(&dev->dev));
++	if (!hcd)
++		goto err_return;
++
++	res_irq = platform_get_resource(dev, IORESOURCE_IRQ, 0);
++	if (!res_irq) {
++		err = -ENXIO;
++		goto err_return;
++	}
++	res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
++	if (!res_mem) {
++		err = -ENXIO;
++		goto err_return;
++	}
++	hcd->rsrc_start = res_mem->start;
++	hcd->rsrc_len = res_mem->end - res_mem->start + 1;
++
++	/*
++	 * start & size modified per sbutils.c
++	 */
++	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
++	if (!hcd->regs)
++		goto err_put_hcd;
++	err = usb_add_hcd(hcd, res_irq->start, IRQF_SHARED);
++	if (err)
++		goto err_iounmap;
++
++	platform_set_drvdata(dev, hcd);
++
++	return err;
++
++err_iounmap:
++	iounmap(hcd->regs);
++err_put_hcd:
++	usb_put_hcd(hcd);
++err_return:
++	return err;
++}
++
++static int ehci_platform_probe(struct platform_device *dev)
++{
++	int err;
++
++	if (usb_disabled())
++		return -ENODEV;
++
++	err = ehci_platform_attach(dev);
++
++	return err;
++}
++
++static int ehci_platform_remove(struct platform_device *dev)
++{
++	struct usb_hcd *hcd;
++
++	hcd = platform_get_drvdata(dev);
++	if (!hcd)
++		return -ENODEV;
++
++	usb_remove_hcd(hcd);
++	iounmap(hcd->regs);
++	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
++	usb_put_hcd(hcd);
++
++	return 0;
++}
++
++static void ehci_platform_shutdown(struct platform_device *dev)
++{
++	struct usb_hcd *hcd;
++
++	hcd = platform_get_drvdata(dev);
++	if (!hcd)
++		return;
++
++	if (hcd->driver->shutdown)
++		hcd->driver->shutdown(hcd);
++}
++
++#ifdef CONFIG_PM
++
++static int ehci_platform_suspend(struct platform_device *dev,
++				 pm_message_t state)
++{
++	return 0;
++}
++
++static int ehci_platform_resume(struct platform_device *dev)
++{
++	struct usb_hcd *hcd = platform_get_drvdata(dev);
++
++	ehci_finish_controller_resume(hcd);
++	return 0;
++}
++
++#else /* !CONFIG_PM */
++#define ehci_platform_suspend	NULL
++#define ehci_platform_resume	NULL
++#endif /* CONFIG_PM */
++
++static const struct platform_device_id ehci_platform_table[] = {
++	{ "ehci-platform", 0 },
++	{ }
++};
++MODULE_DEVICE_TABLE(platform, ehci_platform_table);
++
++static struct platform_driver ehci_platform_driver = {
++	.id_table	= ehci_platform_table,
++	.probe		= ehci_platform_probe,
++	.remove		= ehci_platform_remove,
++	.shutdown	= ehci_platform_shutdown,
++	.suspend	= ehci_platform_suspend,
++	.resume		= ehci_platform_resume,
++	.driver		= {
++		.name	= "ehci-platform",
++	}
++};