Adding support for Mojo Networks C-65

With apologies for the terse response as I've got a long meeting coming up shortly:

I collected the DTS references I found useful on (ignore the link title, there's a lot more there now)

An important concept is that DTS files can add/override/delete what has already been included. Here's an example of one that I'm working on right now that deletes the non-existent NAND and changes the LED assignments:

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT


#include "qca9531_glinet_gl-ar300m-nor.dts"

/ {
        compatible = "glinet,gl-ar300m-lite", "qca,qca9531";
        model = "GL.iNet GL-AR300M-Lite";

/delete-node/ &nand_flash;

// GL-AR300M-Lite has different LED colors than the non-Lite versions

&led_status {
        label = "gl-ar300m-lite:red:status";

&led_lan {
        label = "gl-ar300m-lite:green:lan";

&led_wlan {
        label = "gl-ar300m-lite:green:wlan";

Flash dump on a NOR device can be done with dd, which should be "stock".

Old-style (deprecated) sysfs export of GPIOs can be used to probe them, as could the newer "cdev" interface. The user-space utilities for the newer method are available as gpiod-tools. Somewhere there's a quick script that I saw that looped through GPIOs by by one, exported them, toggled them, then unexpored them.

Edit: Found it:

and posts following