cancel
Showing results for 
Search instead for 
Did you mean: 

Can't get phy-supply regulator - Failed to get PHY0 for usb-otg@49000000

Flyback
Associate II

Hi there,

I have a custom board based on STM32MP157F, with USB2 connected to STM32CubeProgrammer for flashing the eMMC. No USB-ID, no USB-VBUS connected.

The STM32CubeProgrammer downloads the FSBL and U-Boot, but the software does not reconnect as "USB download gadget", it starts again. I believe the problem is related to the following, but not sure.

Flyback_0-1698240912882.png

We have tried quite a few things in the u-boot dts and dtsi, but nothing gets it working as it should be.

I appreciate any help, thanks.

1 ACCEPTED SOLUTION

Accepted Solutions
Flyback
Associate II

Just in case somebody else has the same issue:

Solution is to get the phy-supply = vdd_usb in the right place in the u-boot dts. This is because I am not using a PMIC.

View solution in original post

1 REPLY 1
Flyback
Associate II

Just in case somebody else has the same issue:

Solution is to get the phy-supply = vdd_usb in the right place in the u-boot dts. This is because I am not using a PMIC.