Hi Julien,
On 06/07/2023 19:07, Julien Panis wrote:
USB1 dual-role feature is already handled as peripheral only in dwc3-generic driver.
Signed-off-by: Julien Panis jpanis@baylibre.com
arch/arm/dts/keystone-k2e-evm-u-boot.dtsi | 1 - 1 file changed, 1 deletion(-)
diff --git a/arch/arm/dts/keystone-k2e-evm-u-boot.dtsi b/arch/arm/dts/keystone-k2e-evm-u-boot.dtsi index 970d452f0804..a75f78377c28 100644 --- a/arch/arm/dts/keystone-k2e-evm-u-boot.dtsi +++ b/arch/arm/dts/keystone-k2e-evm-u-boot.dtsi @@ -39,7 +39,6 @@ &usb1 { dwc3@25010000 { phys = <&usb1_phy>;
dr_mode = "peripheral";
keystone-k2e.dtsi nor keystone-k2e-evm.dtsi has dr_mode set anywhere. In Linux, keystone-k2e-evm.dtsi has dr_mode as "peripheral". Can we please have the same in u-boot as well?
Then, from dwc3_generic_of_to_plat()
plat->dr_mode = usb_get_dr_mode(node); if (plat->dr_mode == USB_DR_MODE_UNKNOWN) { /* might be a leaf so check the parent for mode */ node = dev_ofnode(dev->parent); plat->dr_mode = usb_get_dr_mode(node); if (plat->dr_mode == USB_DR_MODE_UNKNOWN) { pr_err("Invalid usb mode setup\n"); return -ENODEV; } }
I suppose that should be changed to OTG by default instead of complaining that it's invalid.
FYI. From linux/devicetree/bindings/usb/usb-drd.yaml
dr_mode: description: Tells Dual-Role USB controllers that we want to work on a particular mode. In case this attribute isn't passed via DT, USB DRD controllers should *default to OTG*.