On 10/26/20 3:50 AM, Drew Fustini wrote:
> I'm seeing this message which makes me think my issue is that I am not
> setting the oscillator as a dtoverlay param.
> 
> [    6.873081] CAN device driver interface
> [    6.879904] DEBUG mcp251xfd mcp251xfd_probe(): ENTER
> [    6.880068] spi_master spi0: will run message pump with realtime priority
> [    6.921312] mcp251xfd spi0.0 (unnamed net_device) (uninitialized):
> Failed to detect MCP251xFD (osc=0x00000000).
> 
> From /boot/config.txt
> 
> [pi4]
> dtoverlay=mcp251xfd-spi0-0

Are you using CS0 of spi0?
What's the frequency of your OSC?

Marc

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