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 -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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