Thanks Robert!

Can you clarify why it's a bad idea on the am57xx when it seems to be the 
fastest way to do it on the am335x?

What is the fastest way to read/write to the GPIO on the am57xx?

On Thursday, March 26, 2020 at 8:26:56 AM UTC-6, RobertCNelson wrote:
>
> On Thu, Mar 26, 2020 at 9:20 AM John Allwine <[email protected] 
> <javascript:>> wrote: 
> > 
> > Is it possible to access the GPIO on the Beaglebone AI via /dev/mem 
> similar to how it is done in this stackoverflow question on the Beaglebone 
> Black? If so, how would I find what the offsets are? 
>
> Hi John, 
>
> dynamic changes to the am57xx's pinmux registers and gpio values is a bad 
> idea.. 
>
> Figure out what you need and set them up in the device tree. 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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