Part Number: AM6441
Hello,
We are currently debugging the USB DFU bring-up on the custom AM64x board.
Current observations:
-
The board is entering UART/USB DFU boot flow successfully.
-
tiboot3.bin is loading successfully.
-
SPL execution is also starting correctly.
However, during SPL/U-Boot DFU initialization, USB gadget/device initialization is failing and the host PC is not able to detect/enumerate the board as a USB DFU device.
SPL attempts DFU boot and fails with:
Trying to boot from DFU
No USB device found
udc_device_get_by_index failed
SPL: failed to boot from all boot devices
### ERROR ### Please RESET the board ###
nodes changes done in the dts
&usbss0 {
bootph-all;
ti,vbus-divider;
ti,usb2-only;
};
&usb0 {
bootph-all;
dr_mode = "peripheral";
maximum-speed = "high-speed";
pinctrl-names = "default";
pinctrl-0 = <&main_usb0_pins_default>;
};
PFA dtsdts.zip
the configuration set
CONFIG_SPL_USB_GADGET=y
CONFIG_USB_CDNS3=y
CONFIG_USB_CDNS3_GADGET=y
CONFIG_SPL_DFU=y
CONFIG_USB_GADGET_DOWNLOAD=y
We were able to successfully flash on eval board using the DFU-USB-Flasher.
Can you please help with the pointers for above issue with the Custom hardware.
Thanks and regards,
Snehal
