Linux init overwrite iomux register

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Linux init overwrite iomux register

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Nouchi
Senior Contributor II

Hello,

At Linux boot time, after mvf_board_init(), IOMUXC_PTB8 is overwritten in my back by something between "io scheduler cfq" registration and console initialization.

Any ideas? It makes me insane.....

Emmabnuel

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timesyssupport
Senior Contributor II

Hi Emmanuel,

What hardware were you using when you encountered this issue? Can you reproduce on the Vybrid Tower kit?

Thanks,

Timesys Support

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Nouchi
Senior Contributor II

Hello,

I'm using my own design based on TWR-VF65GS10 for most part, and autoEVB for Ethernet part. In my case PTB8 is used as FTM1 chan0 capture mode. I set  IOMUX with 0x00101201, and at the end I get 0x0000219e.

At this moment, I don't have enough time to dig deeper, I will do it in few weeks, as workaround, M4 MQX application rewrite IOMUXC, dirty but it works.

Emmanuel

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karina_valencia
NXP Apps Support
NXP Apps Support

timesyssupport can you attend this case?

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