> Von: Patrick Menschel <menschel.p@xxxxxxxxx> > Gesendet: Sonntag, 6. Dezember 2020 15:56 > An: Sven Schuchmann <schuchmann@xxxxxxxxxxxxxxxxx>; linux-can@xxxxxxxxxxxxxxx > Betreff: Re: mcp251xfd No Oscillator (clock) defined > > > dtoverlay=spi1-1cs,cs0_pin=18 > However this line is not be necessary. > It sets up spidev for spi1. > https://github.com/raspberrypi/linux/blob/rpi-5.4.y/arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts#L34 > > The next overlay removes spidev again. > https://github.com/raspberrypi/linux/blob/rpi-5.4.y/arch/arm/boot/dts/overlays/mcp251xfd-overlay.dts#L35 > Thanks for pointing out, but if I do not have this line I get: [ 4.897701] mcp251xfd spi1.0: Native CS is not supported - please configure cs-gpio in device-tree [ 4.897720] spi_master spi1: will run message pump with realtime priority [ 4.936590] mcp251xfd spi1.0 (unnamed net_device) (uninitialized): Failed to detect MCP251xFD (osc=0x00000000). So I thought I have to configure CS with this? Sven -- Sven Schuchmann Schleißheimer Soft- und Hardwareentwicklung GmbH Am Kalkofen 10 61206 Nieder-Wöllstadt GERMANY Phone: +49 6034 9148 711 Fax: +49 6034 9148 91 Email: schuchmann@xxxxxxxxxxxxxxxxx Court of Registration: Amtsgericht Friedberg Registration Number: HRB 1581 Management Board: Hans-Joachim Schleißheimer Christine Schleißheimer
