topic MUX_Mode configuration in i.MX Processors

MUX_Mode configuration

Hpot — Fri, 08 Mar 2024 15:08:15 GMT

I don't understand how to configure MUX_MODE (imx8q)

Is this done in the device tree or elsewhere, if yes, then I don't understand how.

What do the hexadecimal values correspond to?

On screen, it's just an example of a pin whose mode I would like to choose.

Thank you in advance for any help you can give me, I'm having a hard time finding resources on the internet that talk about this

JosephAtNXP — Sat, 09 Mar 2024 01:37:23 GMT

Hi,

Thank you for your interest in NXP Semiconductor products,

You can have a reference for GPIOs with the IMX6 definitive GPIO guide.

But as pointed out by you, the value is for SW_CTL_PAD or pad settings,

The SW_MUX or the muxing is in DTS and the string at the beginning, extracted from linux-imx/arch/arm64/boot/dts/freescale/imx8mq-pinfunc.h defines the MUX.

Regards