ENCX24J600 SPI driver not working

Project help
,
1

I’m using a raspberrypi-cm3 and my machine connects to the internet using ethernet spi using the encx24j600 driver. I have appended the overlay to the device tree and I’m using balenaOS distro.

The device tree overlay is written as such encx24j600-spi2-overlay.dts and encx24j600-overlay.dts. These are more or less copies of the enc28j60-overlay.dts and enc28j60-spi2-overlay.dts.

// Overlay for the Microchip ENCX24J600 Ethernet Controller - SPI2 Compute Module 
// Interrupt pin: 39

/dts-v1/;
/plugin/;

/ {
        compatible = "brcm,bcm2835";
        fragment@0 {
                target = <&spi2>;
                __overlay__ {
                        /* needed to avoid dtc warning */
                        #address-cells = <1>;
                        #size-cells = <0>;

                        status = "okay";

                        eth1: encx24j600@0{
                                compatible = "microchip,encx24j600";
                                reg = <0>; /* CE0 */
                                pinctrl-names = "default";
                                pinctrl-0 = <&eth1_pins>;
                                interrupt-parent = <&gpio>;
                                interrupts = <39 0x2>; /* Falling edge */
                                spi-max-frequency = <12000000>;
                                status = "okay";
                        };
                };
        };

        fragment@1 {
                target = <&gpio>;
                __overlay__ {
                        eth1_pins: eth1_pins {
                                brcm,pins = <39>;
                                brcm,function = <0>; /* in */
                                brcm,pull = <0>; /* none */
                        };
                };
        };

        __overrides__ {
                int_pin = <&eth1>, "interrupts:0",
                          <&eth1_pins>, "brcm,pins:0";
                speed   = <&eth1>, "spi-max-frequency:0";
        };
};

When I flash my image on the device I find that I am only able to connect via ethernet to usb and SPI connection fails completely. dmesg logs show that the eth1 pin has a eth1: hw csum failure

The ifconfig logs for the eth1 pin looks like this
eth1 Link encap:Ethernet HWaddr 04:91:62:6B:9F:78
inet addr:192.168.68.117 Bcast:192.168.68.255 Mask:255.255.255.0
inet6 addr: fe80::11f6:6f22:9b98:dec4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:16381 errors:112 dropped:26 overruns:0 frame:187
TX packets:396 errors:180 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3765249 (3.5 MiB) TX bytes:30358 (29.6 KiB)
Interrupt:166

Any help with this would be much appreciated. Thanks!

4

Hey prim,
Did you manage to sort out the problem? There are lots of RX and TX errors, and I don’t think that is caused by the overlay.
I found this that may be of help: Ethernet hw csum failure with ENC424J600 chip - Toradex Community
Let us know how it goes!