How to enable DMA Capabilities for CAN Driver for IMX8MPlus EVK - based on Linux

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How to enable DMA Capabilities for CAN Driver for IMX8MPlus EVK - based on Linux

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radhak4x
Contributor II

How can I enable DMA capabilities for the CAN driver on the IMX8MPlus EVK board (Cortex-A53) running Linux? Could you please provide suggestions?

 

I am based on i.MX8QMPlus(i.MX8MPlus)- Target - EVK - based on Linux with CAN driver Enabled ( I am compiling the same with yocto build environment).

Now, i have to enable the DMA capabilities for CAN driver.

Could you please provide suggestions from where to start and what modifications are needed? 

Thanks

- RR

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radhak4x
Contributor II

Can someone please suggest ..!

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rd24
Contributor III

I am also looking for a solution for enabling DMA in CAN driver for iMX8. Please help. 

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Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hello,

There is no DMA CAN for cortex M4. you can find the Flexcan code driver explanation in the Linux Reference manual.

https://www.nxp.com/docs/en/reference-manual/IMX_REFERENCE_MANUAL.pdf

 

regards

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radhak4x
Contributor II
Which Section you were referring to ? could you please elaborate ?
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radhak4x
Contributor II
Thanks for the Quick response, however i am based on IMX8MPlus EVK board (Cortex-A53).
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radhak4x
Contributor II
Could you please elaborate on the cortex A 53 processor ? Thanks in advance
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radhak4x
Contributor II
Can someone please elaborate the case.
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