diff options
| author | Simon Glass <sjg@chromium.org> | 2015-03-25 12:22:32 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-04-18 11:11:25 -0600 |
| commit | fbeceb260232ae9f102af11e6cb2f3743ecc9b9a (patch) | |
| tree | 1d838221dbd3a7a82833d2748ca379430905cf39 /drivers/usb | |
| parent | 449230f0318da3f3c27aea1753097a8165da6fdb (diff) | |
| download | talos-obmc-uboot-fbeceb260232ae9f102af11e6cb2f3743ecc9b9a.tar.gz talos-obmc-uboot-fbeceb260232ae9f102af11e6cb2f3743ecc9b9a.zip | |
dm: usb: Allow setting up a USB controller as a device/gadget
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 <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/ci_udc.c | 4 | ||||
| -rw-r--r-- | drivers/usb/host/usb-uclass.c | 24 |
2 files changed, 28 insertions, 0 deletions
diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c index 3b7024c498..22d288c711 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 fa5f14e7e2..29ef5d98e2 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) |
