topic Re: how to integrate pinmux tool C code into Linux in i.MX Processors

how to integrate pinmux tool C code into Linux

randysilagi — Sat, 25 Feb 2017 01:04:22 GMT

I have a imx6sx. The H/W guys used the pinmux tool to configure which pins support which functions. Now I have these 3 files, iomux_config_core1.c *.h and fsl_bitaccess.h. How do I add these files to the kernel and or U-Boot?

Randy S.

Re: how to integrate pinmux tool C code into Linux

Carlos_Musich — Wed, 01 Mar 2017 21:50:10 GMT

Hi Randy,

the pinmux tool was used for the i.MX SDK which provided bareboard configuration, however this tool is no longer used and every configuration must be done through the Device Tree.

You may find many references to this topic

Device Tree Tutorial (ARM) | Linux Kernel For Newbies

Configure GPIO as interrupt source

Default config of GPIO's using device tree - Freescale i.MX6 - Stack Overflow

Any examples on how to modify the .dts (device tree) source for custom hardware?

Regards,
Carlos

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Re: how to integrate pinmux tool C code into Linux

Yuri — Thu, 02 Mar 2017 05:24:34 GMT

Hello,

The Pins Tool is recommended instead of the pinmux.

Pins Tool for i.MX Application Processors|NXP

It generates the Device Tree for Linux.

Regards,

Yuri.

Re: how to integrate pinmux tool C code into Linux

randysilagi — Wed, 08 Mar 2017 21:29:34 GMT

Hi Yuri,

So, I have generated the files with pin tool. Now what should I do with the iomux_config_core1.c and .h files??

Randy S.

Re: how to integrate pinmux tool C code into Linux

Yuri — Wed, 22 Mar 2017 03:32:40 GMT

Hello,

You may refer to recommendations of Carlos_Musich above.

Also, please look at section 3.6 (IOMUX) of "i.MX_Linux_Reference_Manual.pdf".

http://www.nxp.com/webapp/Download?colCode=L4.1.15_2.0.0-LINUX-DOCS&Parent_nodeId=1337699481071706174845&Parent_pageType…

Regards,

Yuri.