On 12/6/20 8:56 PM, Sven Schuchmann wrote: >> As it's now working in general, Sven can test from setup under Linux. > > if I try to load under linux with: > sudo dtoverlay mcp251xfd spi0-0 interrupt=25 > > I get: > [ 36.154548] CAN device driver interface > [ 36.158644] mcp251xfd spi0.0: No Oscillator (clock) defined. The clock is missing. Let's see if it is added to the DT. Do a diff of the DT before and after applying the overlay. | sudo dtc -I fs /proc/device-tree -o before | sudo dtoverlay mcp251xfd spi0-0 interrupt=25 | sudo dtc -I fs /proc/device-tree -o after | diff -u before after Send the output of the diff. regards, 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 |