How to set pinctrl_z port to unsecure in device tree as default?

[Dat Tran]

Hi, I would like to set all 8 pins in port Z to unsecure so i use these pins as other ports.

I read data sheet portz is set to secure mode as default after reset. And I tried write into it and system crashed.

Thanks

[Olivier GALLIEN]

Hi @Community member?

GPIOZ can be unsecure adding this line in TF-A DTS :

DECPROT(STM32MP1_ETZPC_GPIOZ_ID, DECPROT_NS_RW, DECPROT_UNLOCK)>;

Refer to :

ETZPC device tree configuration - stm32mpu​ 

Olivier

[Dat Tran]

yes, thank you a lot. that did help