Netcrusher

This spi-mcp251x.dts made me use can0 with SEENGREAT Dual-CH Can Hat on latest Armbian v25.11.2 for BananaPi BPI-M4-Zero running Armbian Linux 6.12.58-current-sunxi64: /* * Device tree overlay for mcp2517/18 @ can0 on SPI1.0 (BananaPi Zero M4) / Works with SEENGREAT Dual-CH Can Hat (can0 only) */ /dts-v1/; /plugin/; / { compatible = "allwinner,sun50i-h616"; fragment@0 { target-path = "/"; __overlay__ { can0_osc_fixed: can0_osc_fixed { compatible = "fixed-clock"; #clock-cells = <0>; clock-frequency = <16000000>; }; }; }; fragment@1 { target = <&pio>; __overlay__ { can0_pin_irq: can0_pin_irq { pins = "PC2"; /* Pin 22 on BananaPi BPI-M4-Zero */ function = "irq"; bias-pull-up; }; }; }; fragment@2 { target = <&spi1>; /* Use SPI1 */ __overlay__ { #address-cells = <1>; #size-cells = <0>; mcp2518fd@1 { compatible = "microchip,mcp2515"; reg = <0>; /* Use SPIx.0 */ pinctrl-names = "default"; pinctrl-0 = <&can0_pin_irq>; spi-max-frequency = <10000000>; interrupt-parent = <&pio>; interrupts = <2 2 0x08>; /* PC2 IRQ_TYPE_LEVEL_LOW */ clocks = <&can0_osc_fixed>; status = "okay"; }; }; }; }; Create file: sudo nano /boot/dtb/spi-mcp251x.dts Add overlay: sudo armbian-add-overlay /boot/dtb/spi-mcp251x.dts Edit armbianEnv.txt: overlays=bananapi-m4-pi-5-6-i2c0 bananapi-m4-sdio-wifi-bt bananapi-m4-spi1-cs0-spidev spi-mcp251x param_spidev_spi_bus=1 dtparam=spi=on param_i2c_arm_baudrate=10000 I did not try to get can1 to work since I don't need it at the moment. I hope it helps. Have fun!