ohci-platform: Add support for controllers with big-endian regs / descriptors
Note this commit uses the same devicetree booleans for this as the ones
already existing in the usb-ehci bindings, see:
Documentation/devicetree/bindings/usb/usb-ehci.txt
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 49304dd..e2c28fd 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -128,6 +128,7 @@
struct resource *res_mem;
struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
struct ohci_platform_priv *priv;
+ struct ohci_hcd *ohci;
int err, irq, clk = 0;
if (usb_disabled())
@@ -164,8 +165,34 @@
platform_set_drvdata(dev, hcd);
dev->dev.platform_data = pdata;
priv = hcd_to_ohci_priv(hcd);
+ ohci = hcd_to_ohci(hcd);
if (pdata == &ohci_platform_defaults && dev->dev.of_node) {
+ if (of_property_read_bool(dev->dev.of_node, "big-endian-regs"))
+ ohci->flags |= OHCI_QUIRK_BE_MMIO;
+
+ if (of_property_read_bool(dev->dev.of_node, "big-endian-desc"))
+ ohci->flags |= OHCI_QUIRK_BE_DESC;
+
+ if (of_property_read_bool(dev->dev.of_node, "big-endian"))
+ ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC;
+
+#ifndef CONFIG_USB_OHCI_BIG_ENDIAN_MMIO
+ if (ohci->flags & OHCI_QUIRK_BE_MMIO) {
+ dev_err(&dev->dev,
+ "Error big-endian-regs not compiled in\n");
+ err = -EINVAL;
+ goto err_put_hcd;
+ }
+#endif
+#ifndef CONFIG_USB_OHCI_BIG_ENDIAN_DESC
+ if (ohci->flags & OHCI_QUIRK_BE_DESC) {
+ dev_err(&dev->dev,
+ "Error big-endian-desc not compiled in\n");
+ err = -EINVAL;
+ goto err_put_hcd;
+ }
+#endif
priv->phy = devm_phy_get(&dev->dev, "usb");
if (IS_ERR(priv->phy)) {
err = PTR_ERR(priv->phy);