Some controllers support OTG (on-the-go) where they can operate as either
host or device. The gadget layer in U-Boot supports this.
While this layer does not interact with driver model, we can provide a
function which sets up the controller in the correct way. This way the code
at least builds (although it likely will not work).
Signed-off-by: Simon Glass <s...@chromium.org>
---
Changes in v2: None
drivers/usb/gadget/ci_udc.c | 4 ++++
drivers/usb/host/usb-uclass.c | 24 ++++++++++++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c
index b0ef35e..0afc987 100644
--- a/drivers/usb/gadget/ci_udc.c
+++ b/drivers/usb/gadget/ci_udc.c
@@ -883,7 +883,11 @@ int usb_gadget_register_driver(struct usb_gadget_driver
*driver)
if (driver->speed != USB_SPEED_FULL && driver->speed != USB_SPEED_HIGH)
return -EINVAL;
+#ifdef CONFIG_DM_USB
+ ret = usb_setup_ehci_gadget(&controller.ctrl);
+#else
ret = usb_lowlevel_init(0, USB_INIT_DEVICE, (void **)&controller.ctrl);
+#endif
if (ret)
return ret;
diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c
index fa5f14e..29ef5d9 100644
--- a/drivers/usb/host/usb-uclass.c
+++ b/drivers/usb/host/usb-uclass.c
@@ -249,6 +249,30 @@ int usb_legacy_port_reset(struct usb_device *parent, int
portnr)
return usb_port_reset(parent, portnr);
}
+int usb_setup_ehci_gadget(struct ehci_ctrl **ctlrp)
+{
+ struct usb_platdata *plat;
+ struct udevice *dev;
+ int ret;
+
+ /* Find the old device and remove it */
+ ret = uclass_find_device_by_seq(UCLASS_USB, 0, true, &dev);
+ if (ret)
+ return ret;
+ ret = device_remove(dev);
+ if (ret)
+ return ret;
+
+ plat = dev_get_platdata(dev);
+ plat->init_type = USB_INIT_DEVICE;
+ ret = device_probe(dev);
+ if (ret)
+ return ret;
+ *ctlrp = dev_get_priv(dev);
+
+ return 0;
+}
+
/* returns 0 if no match, 1 if match */
int usb_match_device(const struct usb_device_descriptor *desc,
const struct usb_device_id *id)
--
2.2.0.rc0.207.ga3a616c
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