From: Mugunthan V N <mugunthan...@ti.com> Add a misc driver for DWC3 wrapper, so that based on dr_mode the USB devices can bind to USB host or USB device drivers.
Based on dr_mode property, the device node needs to bind to either "host" driver or "peripheral" driver. This wrapper will on bind read dr_mode property and appropriately associate USB DT node with DWC3 peripheral driver or host driver. This is similar to what exists today for MUSB and is instantiated by arch_misc_init() function for am33xx and am43xx. Signed-off-by: Mugunthan V N <mugunthan...@ti.com> Signed-off-by: Vignesh R <vigne...@ti.com> --- drivers/usb/dwc3/dwc3-omap.c | 49 ++++++++++++++++++++++++++++++++++++++++++++ drivers/usb/dwc3/gadget.c | 2 +- 2 files changed, 50 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index b4dde726c6f3..b7daf499515d 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -628,4 +628,53 @@ U_BOOT_DRIVER(dwc3_omap_peripheral) = { .priv_auto_alloc_size = sizeof(struct omap_dwc3_priv), .flags = DM_FLAG_ALLOC_PRIV_DMA, }; + +static int ti_dwc3_wrapper_bind(struct udevice *parent) +{ + ofnode node; + int ret; + + dev_for_each_subnode(node, parent) { + const char *name = ofnode_get_name(node); + enum usb_dr_mode dr_mode; + struct udevice *dev; + + if (strncmp(name, "usb@", 4)) + continue; + + dr_mode = usb_get_dr_mode(ofnode_to_offset(node)); + switch (dr_mode) { + case USB_DR_MODE_PERIPHERAL: + case USB_DR_MODE_OTG: + /* Bind MUSB device */ + ret = device_bind_driver_to_node(parent, + "dwc3-omap-peripheral", + name, node, &dev); + if (ret) { + error("dwc3 - not able to bind usb device node\n"); + return ret; + } + break; + case USB_DR_MODE_HOST: + /* Bind MUSB host */ + break; + default: + break; + }; + } + return 0; +} + +static const struct udevice_id ti_dwc3_ids[] = { + { .compatible = "ti,am437x-dwc3" }, + { } +}; + +U_BOOT_DRIVER(ti_dwc3_wrapper) = { + .name = "ti-dwc3-wrapper", + .id = UCLASS_MISC, + .of_match = ti_dwc3_ids, + .bind = ti_dwc3_wrapper_bind, +}; + #endif /* CONFIG_DM_USB */ diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index e065c5aeb38d..18bbd5318e48 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2610,7 +2610,7 @@ int dwc3_gadget_init(struct dwc3 *dwc) if (ret) goto err4; - ret = usb_add_gadget_udc(dwc->dev, &dwc->gadget); + ret = usb_add_gadget_udc((struct device *)dwc->dev, &dwc->gadget); if (ret) { dev_err(dwc->dev, "failed to register udc\n"); goto err4; -- 2.13.0 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot