Fran A100
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Fran A100's post in MCP2515 CAN Controller on Allwinner D1 (MangoPi Mqpro) was marked as the answerFinally I made it! Thanks a lot for the help but it was something else. The final overlay is the next one:
/dts-v1/; /plugin/; / { compatible = "allwinner,d1-nezha\0allwinner,sun20i-d1"; fragment@0 { target-path = "/clocks"; __overlay__ { #address-cells = <1>; #size-cells = <1>; /* External crystal oscillator on the board */ can0_osc_fixed: can0_osc_fixed { compatible = "fixed-clock"; #clock-cells = <0>; clock-frequency = <8000000>; phandle = <0x81>; }; }; }; fragment@1 { target = <&pinctrl>; // pinctrl@2000000 __overlay__ { can0_pin_irq: can0_pin_irq { pins = "PD17"; function = "irq"; phandle = <0x85>; bias-pull-up; }; }; }; fragment@2 { target = <&spi>; //spi@4026000 __overlay__ { #address-cells = <1>; #size-cells = <0>; status = "okay"; mcp2515 { reg = <0>; // SPI 1 compatible = "microchip,mcp2515"; pinctrl-names = "default"; pinctrl-0 = <0x85>; spi-max-frequency = <10000000>; interrupt-parent = <0x22>; // pinctrl@2000000 interrupts = <3 17 8>; // IRQ LINE, try with <0 65 2> clocks = <0x81>; status = "okay"; }; }; }; };
I learnt some things about the interrupts field:
* The part of interrupts is like this, <BANK NUMBER TYPE_INTERRUPT>
* BANK is like, A -> 0, B-> 1, C->2, D->3
* NUMBER, PD17 -> 17
* TYPE_INTERRUPT, is described here
