--- /dev/null
+From ffb27de4760595c356ef619c97f25722c8db28e7 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sun, 27 Jul 2014 09:49:07 +0100
+Subject: [PATCH 38/57] USB: add OHCI/EHCI OF binding
+
+based on f3bc64d6d1f21c1b92d75f233a37b75d77af6963
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ drivers/usb/Makefile | 3 ++-
+ drivers/usb/host/ehci-platform.c | 21 +++++++++++++++++----
+ drivers/usb/host/ohci-platform.c | 37 +++++++++++++++++++++++++++++++------
+ 3 files changed, 50 insertions(+), 11 deletions(-)
+
+diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
+index 1ae2bf3..aaa15d9 100644
+--- a/drivers/usb/Makefile
++++ b/drivers/usb/Makefile
+@@ -11,6 +11,8 @@ obj-$(CONFIG_USB_DWC2) += dwc2/
+
+ obj-$(CONFIG_USB_MON) += mon/
+
++obj-$(CONFIG_USB_PHY) += phy/
++
+ obj-$(CONFIG_PCI) += host/
+ obj-$(CONFIG_USB_EHCI_HCD) += host/
+ obj-$(CONFIG_USB_ISP116X_HCD) += host/
+@@ -41,7 +43,6 @@ obj-$(CONFIG_USB_TMC) += class/
+ obj-$(CONFIG_USB_STORAGE) += storage/
+ obj-$(CONFIG_USB) += storage/
+
+-obj-$(CONFIG_USB_MDC800) += image/
+ obj-$(CONFIG_USB_MICROTEK) += image/
+
+ obj-$(CONFIG_USB_SERIAL) += serial/
+diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
+index 01536cf..1b9a8f4 100644
+--- a/drivers/usb/host/ehci-platform.c
++++ b/drivers/usb/host/ehci-platform.c
+@@ -29,6 +29,8 @@
+ #include <linux/usb.h>
+ #include <linux/usb/hcd.h>
+ #include <linux/usb/ehci_pdriver.h>
++#include <linux/usb/phy.h>
++#include <linux/usb/otg.h>
+
+ #include "ehci.h"
+
+@@ -123,6 +125,15 @@ static int ehci_platform_probe(struct platform_device *dev)
+ hcd->rsrc_start = res_mem->start;
+ hcd->rsrc_len = resource_size(res_mem);
+
++#ifdef CONFIG_USB_PHY
++ hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
++ if (!IS_ERR_OR_NULL(hcd->phy)) {
++ otg_set_host(hcd->phy->otg,
++ &hcd->self);
++ usb_phy_init(hcd->phy);
++ }
++#endif
++
+ hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
+ if (IS_ERR(hcd->regs)) {
+ err = PTR_ERR(hcd->regs);
+@@ -160,6 +171,9 @@ static int ehci_platform_remove(struct platform_device *dev)
+ if (pdata == &ehci_platform_defaults)
+ dev->dev.platform_data = NULL;
+
++ if (pdata == &ehci_platform_defaults)
++ dev->dev.platform_data = NULL;
++
+ return 0;
+ }
+
+@@ -204,9 +218,8 @@ static int ehci_platform_resume(struct device *dev)
+ #define ehci_platform_resume NULL
+ #endif /* CONFIG_PM */
+
+-static const struct of_device_id vt8500_ehci_ids[] = {
+- { .compatible = "via,vt8500-ehci", },
+- { .compatible = "wm,prizm-ehci", },
++static const struct of_device_id ralink_ehci_ids[] = {
++ { .compatible = "ralink,rt3xxx-ehci", },
+ {}
+ };
+
+@@ -230,7 +243,7 @@ static struct platform_driver ehci_platform_driver = {
+ .owner = THIS_MODULE,
+ .name = "ehci-platform",
+ .pm = &ehci_platform_pm_ops,
+- .of_match_table = vt8500_ehci_ids,
++ .of_match_table = ralink_ehci_ids,
+ }
+ };
+
+diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
+index 68f674c..2a73fed 100644
+--- a/drivers/usb/host/ohci-platform.c
++++ b/drivers/usb/host/ohci-platform.c
+@@ -23,17 +23,20 @@
+ #include <linux/usb/ohci_pdriver.h>
+ #include <linux/usb.h>
+ #include <linux/usb/hcd.h>
++#include <linux/dma-mapping.h>
++#include <linux/of.h>
+
+ #include "ohci.h"
+
+ #define DRIVER_DESC "OHCI generic platform driver"
+
++static struct usb_ohci_pdata ohci_platform_defaults;
+ static const char hcd_name[] = "ohci-platform";
+
+ static int ohci_platform_reset(struct usb_hcd *hcd)
+ {
+ struct platform_device *pdev = to_platform_device(hcd->self.controller);
+- struct usb_ohci_pdata *pdata = dev_get_platdata(&pdev->dev);
++ struct usb_ohci_pdata *pdata;
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+ if (pdata->big_endian_desc)
+@@ -63,11 +66,18 @@ static int ohci_platform_probe(struct platform_device *dev)
+ int irq;
+ int err = -ENOMEM;
+
+- if (!pdata) {
+- WARN_ON(1);
+- return -ENODEV;
+- }
+-
++ /*
++ * use reasonable defaults so platforms don't have to provide these.
++ * with DT probing on ARM, none of these are set.
++ */
++ if (!dev->dev.platform_data)
++ dev->dev.platform_data = &ohci_platform_defaults;
++ if (!dev->dev.dma_mask)
++ dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
++ if (!dev->dev.coherent_dma_mask)
++ dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
++
++ pdata = dev->dev.platform_data;
+ if (usb_disabled())
+ return -ENODEV;
+
+@@ -99,6 +109,12 @@ static int ohci_platform_probe(struct platform_device *dev)
+ hcd->rsrc_start = res_mem->start;
+ hcd->rsrc_len = resource_size(res_mem);
+
++#ifdef CONFIG_USB_PHY
++ hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
++ if (!IS_ERR_OR_NULL(hcd->phy))
++ usb_phy_init(hcd->phy);
++#endif
++
+ hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
+ if (IS_ERR(hcd->regs)) {
+ err = PTR_ERR(hcd->regs);
+@@ -134,6 +150,9 @@ static int ohci_platform_remove(struct platform_device *dev)
+ if (pdata->power_off)
+ pdata->power_off(dev);
+
++ if (pdata == &ohci_platform_defaults)
++ dev->dev.platform_data = NULL;
++
+ return 0;
+ }
+
+@@ -180,6 +199,11 @@ static int ohci_platform_resume(struct device *dev)
+ #define ohci_platform_resume NULL
+ #endif /* CONFIG_PM */
+
++static const struct of_device_id ralink_ohci_ids[] = {
++ { .compatible = "ralink,rt3xxx-ohci", },
++ {}
++};
++
+ static const struct platform_device_id ohci_platform_table[] = {
+ { "ohci-platform", 0 },
+ { }
+@@ -200,6 +224,7 @@ static struct platform_driver ohci_platform_driver = {
+ .owner = THIS_MODULE,
+ .name = "ohci-platform",
+ .pm = &ohci_platform_pm_ops,
++ .of_match_table = of_match_ptr(ralink_ohci_ids),
+ }
+ };
+
+--
+1.7.10.4
+
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