HI, guys. i need help, with my orange pi zero + mpc2515.
My connect, is the same as this image.
Int connect to PA7.
mcp-2515.dtbo:
/dts-v1/;
/plugin/;
/ {
compatible = "allwinner,sun4i-a10", "allwinner,sun7i-a20", "allwinner,sun8i-h3", "allwinner,sun50i-a64", "allwinner,sun50i-h5";
fragment@0 {
target-path = "/clocks";
__overlay__ {
#address-cells = <1>;
#size-cells = <1>;
can0_osc_fixed: can0_osc_fixed {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <8000000>;
};
};
};
fragment@1 {
target = <&pio>;
__overlay__ {
can0_pin_irq: can0_pin_irq {
pins = "PA7";
function = "irq";
bias-pull-up;
};
};
};
fragment@2 {
target = <&spi0>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
mcp2515 {
reg = <0>;
compatible = "microchip,mcp2515";
pinctrl-names = "default";
pinctrl-0 = <&can0_pin_irq>;
spi-max-frequency = <10000000>;
interrupt-parent = <&pio>;
interrupts = <0 7 2>; /* PA7 IRQ_TYPE_EDGE_FALLING */
clocks = <&can0_osc_fixed>;
status = "okay";
};
};
};
};
dmesg | grep spi
[ 3.311923] sun6i-spi 1c68000.spi: chipselect 0 already in use
[ 3.311943] spi_master spi0: spi_device register error /soc/spi@1c68000/flash@0
[ 3.311964] spi_master spi0: Failed to create SPI device for /soc/spi@1c68000/flash@0
[ 12.137229] mcp251x spi0.0: MCP251x didn't enter in conf mode after reset
[ 12.139207] mcp251x spi0.0: Probe failed, err=16
[ 12.139292] mcp251x: probe of spi0.0 failed with error -16
I try change
this is solution not work.
Thank you in advance for your help.
