[xburst] Add 2.6.35 patches

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22463 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 326 insertions, 0 deletions

diff --git a/target/linux/xburst/patches-2.6.35/055-ohci.patch b/target/linux/xburst/patches-2.6.35/055-ohci.patch
new file mode 100644
index 0000000000..f41f1d9119
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.35/055-ohci.patch
@@ -0,0 +1,326 @@
+From 4365ef4ae6c7c08950ac34c47f7beaece2dc48ea Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sun, 1 Aug 2010 21:13:26 +0200
+Subject: [PATCH] USB: Add JZ4740 OHCI support
+
+Add OHCI glue code for JZ4740 SoCs OHCI module.
+
+Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
+Cc: Greg Kroah-Hartman <gregkh@suse.de>
+Cc: David Brownell <dbrownell@users.sourceforge.net>
+Cc: linux-usb@vger.kernel.org
+Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
+Cc: linux-mips@linux-mips.org
+Cc: linux-kernel@vger.kernel.org
+Patchwork: https://patchwork.linux-mips.org/patch/1411/
+Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+---
+ drivers/usb/Kconfig            |    1 +
+ drivers/usb/host/ohci-hcd.c    |    5 +
+ drivers/usb/host/ohci-jz4740.c |  276 ++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 282 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/usb/host/ohci-jz4740.c
+
+--- a/drivers/usb/Kconfig
++++ b/drivers/usb/Kconfig
+@@ -46,6 +46,7 @@ config USB_ARCH_HAS_OHCI
+ 	default y if PPC_MPC52xx
+ 	# MIPS:
+ 	default y if SOC_AU1X00
++	default y if MACH_JZ4740
+ 	# SH:
+ 	default y if CPU_SUBTYPE_SH7720
+ 	default y if CPU_SUBTYPE_SH7721
+--- a/drivers/usb/host/ohci-hcd.c
++++ b/drivers/usb/host/ohci-hcd.c
+@@ -1095,6 +1095,11 @@ MODULE_LICENSE ("GPL");
+ #define TMIO_OHCI_DRIVER	ohci_hcd_tmio_driver
+ #endif
+ 
++#ifdef CONFIG_MACH_JZ4740
++#include "ohci-jz4740.c"
++#define PLATFORM_DRIVER	ohci_hcd_jz4740_driver
++#endif
++
+ #if	!defined(PCI_DRIVER) &&		\
+ 	!defined(PLATFORM_DRIVER) &&	\
+ 	!defined(OMAP1_PLATFORM_DRIVER) &&	\
+--- /dev/null
++++ b/drivers/usb/host/ohci-jz4740.c
+@@ -0,0 +1,276 @@
++/*
++ *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.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.
++ *
++ *  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.
++ *
++ */
++
++#include <linux/platform_device.h>
++#include <linux/clk.h>
++#include <linux/regulator/consumer.h>
++
++struct jz4740_ohci_hcd {
++	struct ohci_hcd ohci_hcd;
++
++	struct regulator *vbus;
++	bool vbus_enabled;
++	struct clk *clk;
++};
++
++static inline struct jz4740_ohci_hcd *hcd_to_jz4740_hcd(struct usb_hcd *hcd)
++{
++	return (struct jz4740_ohci_hcd *)(hcd->hcd_priv);
++}
++
++static inline struct usb_hcd *jz4740_hcd_to_hcd(struct jz4740_ohci_hcd *jz4740_ohci)
++{
++	return container_of((void *)jz4740_ohci, struct usb_hcd, hcd_priv);
++}
++
++static int ohci_jz4740_start(struct usb_hcd *hcd)
++{
++	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
++	int	ret;
++
++	ret = ohci_init(ohci);
++	if (ret < 0)
++		return ret;
++
++	ohci->num_ports = 1;
++
++	ret = ohci_run(ohci);
++	if (ret < 0) {
++		dev_err(hcd->self.controller, "Can not start %s",
++			hcd->self.bus_name);
++		ohci_stop(hcd);
++		return ret;
++	}
++	return 0;
++}
++
++static int ohci_jz4740_set_vbus_power(struct jz4740_ohci_hcd *jz4740_ohci,
++	bool enabled)
++{
++	int ret = 0;
++
++	if (!jz4740_ohci->vbus)
++		return 0;
++
++	if (enabled && !jz4740_ohci->vbus_enabled) {
++		ret = regulator_enable(jz4740_ohci->vbus);
++		if (ret)
++			dev_err(jz4740_hcd_to_hcd(jz4740_ohci)->self.controller,
++				"Could not power vbus\n");
++	} else if (!enabled && jz4740_ohci->vbus_enabled) {
++		ret = regulator_disable(jz4740_ohci->vbus);
++	}
++
++	if (ret == 0)
++		jz4740_ohci->vbus_enabled = enabled;
++
++	return ret;
++}
++
++static int ohci_jz4740_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
++	u16 wIndex, char *buf, u16 wLength)
++{
++	struct jz4740_ohci_hcd *jz4740_ohci = hcd_to_jz4740_hcd(hcd);
++	int ret;
++
++	switch (typeReq) {
++	case SetHubFeature:
++		if (wValue == USB_PORT_FEAT_POWER)
++			ret = ohci_jz4740_set_vbus_power(jz4740_ohci, true);
++		break;
++	case ClearHubFeature:
++		if (wValue == USB_PORT_FEAT_POWER)
++			ret = ohci_jz4740_set_vbus_power(jz4740_ohci, false);
++		break;
++	}
++
++	if (ret)
++		return ret;
++
++	return ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
++}
++
++
++static const struct hc_driver ohci_jz4740_hc_driver = {
++	.description =		hcd_name,
++	.product_desc =		"JZ4740 OHCI",
++	.hcd_priv_size =	sizeof(struct jz4740_ohci_hcd),
++
++	/*
++	 * generic hardware linkage
++	 */
++	.irq =			ohci_irq,
++	.flags =		HCD_USB11 | HCD_MEMORY,
++
++	/*
++	 * basic lifecycle operations
++	 */
++	.start =		ohci_jz4740_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_jz4740_hub_control,
++#ifdef	CONFIG_PM
++	.bus_suspend =		ohci_bus_suspend,
++	.bus_resume =		ohci_bus_resume,
++#endif
++	.start_port_reset =	ohci_start_port_reset,
++};
++
++
++static __devinit int jz4740_ohci_probe(struct platform_device *pdev)
++{
++	int ret;
++	struct usb_hcd *hcd;
++	struct jz4740_ohci_hcd *jz4740_ohci;
++	struct resource *res;
++	int irq;
++
++	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++
++	if (!res) {
++		dev_err(&pdev->dev, "Failed to get platform resource\n");
++		return -ENOENT;
++	}
++
++	irq = platform_get_irq(pdev, 0);
++	if (irq < 0) {
++		dev_err(&pdev->dev, "Failed to get platform irq\n");
++		return irq;
++	}
++
++	hcd = usb_create_hcd(&ohci_jz4740_hc_driver, &pdev->dev, "jz4740");
++	if (!hcd) {
++		dev_err(&pdev->dev, "Failed to create hcd.\n");
++		return -ENOMEM;
++	}
++
++	jz4740_ohci = hcd_to_jz4740_hcd(hcd);
++
++	res = request_mem_region(res->start, resource_size(res), hcd_name);
++	if (!res) {
++		dev_err(&pdev->dev, "Failed to request mem region.\n");
++		ret = -EBUSY;
++		goto err_free;
++	}
++
++	hcd->rsrc_start = res->start;
++	hcd->rsrc_len = resource_size(res);
++	hcd->regs = ioremap(res->start, resource_size(res));
++
++	if (!hcd->regs) {
++		dev_err(&pdev->dev, "Failed to ioremap registers.\n");
++		ret = -EBUSY;
++		goto err_release_mem;
++	}
++
++	jz4740_ohci->clk = clk_get(&pdev->dev, "uhc");
++	if (IS_ERR(jz4740_ohci->clk)) {
++		ret = PTR_ERR(jz4740_ohci->clk);
++		dev_err(&pdev->dev, "Failed to get clock: %d\n", ret);
++		goto err_iounmap;
++	}
++
++	jz4740_ohci->vbus = regulator_get(&pdev->dev, "vbus");
++	if (IS_ERR(jz4740_ohci->vbus))
++		jz4740_ohci->vbus = NULL;
++
++
++	clk_set_rate(jz4740_ohci->clk, 48000000);
++	clk_enable(jz4740_ohci->clk);
++	if (jz4740_ohci->vbus)
++		ohci_jz4740_set_vbus_power(jz4740_ohci, true);
++
++	platform_set_drvdata(pdev, hcd);
++
++	ohci_hcd_init(hcd_to_ohci(hcd));
++
++	ret = usb_add_hcd(hcd, irq, 0);
++	if (ret) {
++		dev_err(&pdev->dev, "Failed to add hcd: %d\n", ret);
++		goto err_disable;
++	}
++
++	return 0;
++
++err_disable:
++	platform_set_drvdata(pdev, NULL);
++	if (jz4740_ohci->vbus) {
++		regulator_disable(jz4740_ohci->vbus);
++		regulator_put(jz4740_ohci->vbus);
++	}
++	clk_disable(jz4740_ohci->clk);
++
++	clk_put(jz4740_ohci->clk);
++err_iounmap:
++	iounmap(hcd->regs);
++err_release_mem:
++	release_mem_region(res->start, resource_size(res));
++err_free:
++	usb_put_hcd(hcd);
++
++	return ret;
++}
++
++static __devexit int jz4740_ohci_remove(struct platform_device *pdev)
++{
++	struct usb_hcd *hcd = platform_get_drvdata(pdev);
++	struct jz4740_ohci_hcd *jz4740_ohci = hcd_to_jz4740_hcd(hcd);
++
++	usb_remove_hcd(hcd);
++
++	platform_set_drvdata(pdev, NULL);
++
++	if (jz4740_ohci->vbus) {
++		regulator_disable(jz4740_ohci->vbus);
++		regulator_put(jz4740_ohci->vbus);
++	}
++
++	clk_disable(jz4740_ohci->clk);
++	clk_put(jz4740_ohci->clk);
++
++	iounmap(hcd->regs);
++	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
++
++	usb_put_hcd(hcd);
++
++	return 0;
++}
++
++static struct platform_driver ohci_hcd_jz4740_driver = {
++	.probe = jz4740_ohci_probe,
++	.remove = __devexit_p(jz4740_ohci_remove),
++	.driver = {
++		.name = "jz4740-ohci",
++		.owner = THIS_MODULE,
++	},
++};
++
++MODULE_ALIAS("platfrom:jz4740-ohci");