DRA829V: MCAN Support on A72 Linux

Priya Boloor

Replies: 1

Views: 36

Part Number: DRA829V

We are looking at enabling MCAN linux driver support on A72, this is to enable a new use case requested by our customer, which needs CAN communication between Adaptive (running on A72) and Classic (running R5F). To enable this on linux side, we see two challenges,

Create the DTB for MCAN :: Tried creating referring the link here, but since this is for Jacinto 6, we are blocked on two items,

Clock Configuration
Interrupt Configuration

Enable linux driver :: We believe this is already enabled in the SDK provided and once the DTB entries are present the driver will auto load.

So, considering our limited knowledge of DRA829, request your help with the DTSI entries, for atleast two MCAN channels for A72.

Thanks

Genius 12610 points

Karan Saxena
- Jun 9, 2020 9:00 AM
Hi Priya,

There is no linux driver for MCAN on DRA829, we recommend using MCAN with R5F. In case you want to use the CAN data on A72, the CAN module can still be controlled by R5F and the data received can be used on the A72 via IPC (Inter Processor Communication)

There are reference examples to use CAN on R5F - http://downloads.ti.com/jacinto7/esd/processor-sdk-rtos-jacinto7/latest/exports/docs/mcusw/mcal_drv/docs/drv_docs/demo_can_profile_top.html

Regards,

Karan
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DRA829V: MCAN Support on A72 Linux

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