I want to power the STM32MP157 card by the + 5V of the CN2 connector to integrate the card on a motherboard of a control system. The card does not boot if power is supplied from CN2.

PFUMA.1 · ‎2021-03-25

Only the power supply via USB C CN6 allows booting with detection of the presence of voltage on GPIO PA5 and PA4. Is there a way to modify this control mode and be able to boot with a CN2 power supply? Is it possible to modify the FW so as not to read the two GPIOs ? Thank for help.

PatrickF · ‎2021-03-26

Hi,

I think removing this property in uBoot Device Tree would be enough.

   		st,adc_usb_pd = <&adc1 18>, <&adc1 19>;

See https://wiki.st.com/stm32mpu/wiki/How_to_configure_U-Boot_for_your_board#Config_node

Regards.

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PatrickF · ‎2021-03-26

Hi,

I think removing this property in uBoot Device Tree would be enough.

   		st,adc_usb_pd = <&adc1 18>, <&adc1 19>;

See https://wiki.st.com/stm32mpu/wiki/How_to_configure_U-Boot_for_your_board#Config_node

Regards.

In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.

PFUMA.1 · ‎2021-03-26

Thanks !