How to interface an external DUART chip with the ifc bus of an ls1021a-twr board?

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How to interface an external DUART chip with the ifc bus of an ls1021a-twr board?

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Contributor V

Hi,

I'm trying to interface an external duart XR68M752IM48  to my custom ls1021a-twr board's ifc bus,

 

Can you please tell me what are the changes I may have to make to the driver to interface this chip and also the changes I have to make in the dts file fot configure a duart node?

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2 Replies

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NXP TechSupport
NXP TechSupport

See as example the AN12098:

https://www.nxp.com/webapp/Download?colCode=AN12098&location=null

 

It looks like the driver is needed the XR68M752IM48 using as duart on the LS1021a board.

The LS1021a supports 6 LPUARTs. Usually these UART are used if additional UARTs are needed.

 

Have a great day,
Pavel Chubakov

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Contributor V

Hi Pavel,

Is there any driver already available for this? also can you please explain in detail how to configure the kernel to add support for XR68M752IM48 .

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