PROCESSOR-SDK-AM62X: Linux boot code

Ryuuichi machida

Part Number: PROCESSOR-SDK-AM62X
Other Parts Discussed in Thread: SK-AM62

Hello,

I would like to change GPIO setting during boot of linux kernel.
At first, I looked for "mach-k3" directory which I guess that boot code will be included, however I could not find this directory.
Which directory and source code should be referred to change GPIO setting ?
(I'm talking about case of "SK-AM62" EVM with linux SDK.)

Best Regards,

1 month ago

0 Anshu Madwesh 1 month ago

TI__Expert 4740 points

Hello,

The only way I'm aware of setting GPIO pins during boot is following this method: https://docs.u-boot.org/en/latest/usage/cmd/gpio.html

Best Regards,

Anshu

0 Ryuuichi machida 1 month ago in reply to Anshu Madwesh

Guru 11525 points

Hello,

Thank you for your reply.

It seems that above thread show part of u-boot.
I would like to know setting during kernel boot.
Could you confirm about above ?

BR,

0 Anshu Madwesh 1 month ago in reply to Ryuuichi machida

TI__Expert 4740 points

Hello,

I'll look into kernel boot and will respond on this thread.

Best Regards,

Anshu

+1 Anshu Madwesh 1 month ago in reply to Anshu Madwesh

TI__Expert 4740 points

Hello,

I wasn't able to find anything regarding setting GPIO during Kernel Boot. I think the closest you can do is before boot via U-Boot commands.

Best Regards,
Anshu

0 Ryuuichi machida 1 month ago in reply to Anshu Madwesh

Guru 11525 points

Hello,

OK I understood. I will check it.

BR,

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PROCESSOR-SDK-AM62X: Linux boot code