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Associate II
October 25, 2023
Solved

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

  • October 25, 2023
  • 1 reply
  • 2408 views

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.

This topic has been closed for replies.
Best answer by Flyback

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.

1 reply

FlybackAuthorBest answer
Associate II
October 30, 2023

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.