+static int ehci_usb_phy_mode(struct udevice *dev)
+{
+ struct usb_platdata *plat = dev_get_platdata(dev);
+ void *__iomem addr = (void *__iomem)dev_get_addr(dev);
+ void *__iomem phy_ctrl, *__iomem phy_status;
+ const void *blob = gd->fdt_blob;
+ int offset = dev->of_offset, phy_off;
+ u32 val;
+
+ /*
+ * About fsl,usbphy, Refer to
+ * Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt.
+ */
+ if (is_mx6()) {
+ phy_off = fdtdec_lookup_phandle(blob,
+ offset,
+ "fsl,usbphy");
+ if (phy_off < 0)
+ return -EINVAL;
+
+ addr = (void __iomem *)fdtdec_get_addr(blob, phy_off,
+ "reg");
+ if ((fdt_addr_t)addr == FDT_ADDR_T_NONE)
+ return -EINVAL;
+
+ phy_ctrl = (void __iomem *)(addr + USBPHY_CTRL);
+ val = readl(phy_ctrl);
+
+ if (val & USBPHY_CTRL_OTG_ID)
+ plat->init_type = USB_INIT_DEVICE;
+ else
+ plat->init_type = USB_INIT_HOST;
+ } else if (is_mx7()) {
+ phy_status = (void __iomem *)(addr +
+ USBNC_PHY_STATUS_OFFSET);
+ val = readl(phy_status);
+
+ if (val & USBNC_PHYSTATUS_ID_DIG)
+ plat->init_type = USB_INIT_DEVICE;
+ else
+ plat->init_type = USB_INIT_HOST;
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int ehci_usb_ofdata_to_platdata(struct udevice *dev)
+{
+ struct usb_platdata *plat = dev_get_platdata(dev);
+ const char *mode;
+
+ mode = fdt_getprop(gd->fdt_blob, dev->of_offset, "dr_mode", NULL);
+ if (mode) {
+ if (strcmp(mode, "peripheral") == 0)
+ plat->init_type = USB_INIT_DEVICE;
+ else if (strcmp(mode, "host") == 0)
+ plat->init_type = USB_INIT_HOST;
+ else if (strcmp(mode, "otg") == 0)
+ return ehci_usb_phy_mode(dev);
+ else
+ return -EINVAL;
+
+ return 0;
+ }
+
+ return ehci_usb_phy_mode(dev);
+}
+