How to control a GPIO in TF-A ?

[Sxuem.1]

I want to control a GPIO before u-boot, so how to control in TF-A?

[OlivierK]

Hi Sxuem.1 (Community Member)

STM32 GPIO driver is available in TF-A source <TF-A source directory>/drivers/st/gpio/stm32_gpio.c

Also you can append the &pinctrl node in DT to initialize a specific GPIO configuration.

Regards,

Olivier

[PatrickF]

In order to give better visibility on the answered topics, please click on 'Select as Best' on the reply which solved your issue or answered your question. See also 'Best Answers'

[Sxuem.1]

Thanks,!