OpenWRT had a DTB for the NWA50AX LEDs that I didn't pick up.
Anyway, we need to include our own special DTB for the NWA platform in general
to support A/B operations, because OpenWRT original one just mark everything else read-only.
Signed-off-by: Raito Bezarius <masterancpp@gmail.com>
This adds a simple boot blessing module, to be used, with the Zyxel NWA50AX.
There's a lot of elephant in the rooms: how do you upgrade kernel, etc.
Signed-off-by: Raito Bezarius <masterancpp@gmail.com>
This is a quite comprehensive example using maximally the hardware
available to reach nice performance.
In the future, I will even add RADIUS examples.
Signed-off-by: Raito Bezarius <masterancpp@gmail.com>
Zyxel "firmware" format is just… a FIT with some metadata on the models.
This FIT is like this:
--------------------------
uImage FIT header
--------------------------
Linux kernel
--------------------------
FDT DTB
--------------------------
Padding so that
this makes
8192kb [1]
--------------------------
UBI volume
as a root filesystem
--------------------------
We just reproduce this in a very brutal and naive way.
In the future, this seems worth to generalize and modularize this idea
so that zyxel-nwa-fit is just an instance of a more general output.
[1]: https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=target/linux/ramips/image/mt7621.mk;h=ab1b829ba0086cb9fc9ca8cbbf3cbc14735034d6;hb=refs/heads/main#l3097
Signed-off-by: Raito Bezarius <masterancpp@gmail.com>
I believe there should be another module exposing `rootubifs` as `rootfs`
or let any other module just subsume that component like `zyxel-nwa-fit` output.
Signed-off-by: Raito Bezarius <masterancpp@gmail.com>
Some devices have a U-boot variant that does not accept a third
parameter on the "bootm" command, meaning we can't override the dtb
in the bootloader so have to smush it back into the kernel image
This doesn't work in QEMU but I think the problem is with the
U-Boot configuration for QEMU. It does work on at least one
hardware device so I'm pushing it anyway
Based on
https://gti.telent.net/raboof/liminix/src/branch/tftp-old-uboot
Co-authored-by: Arnout Engelen <arnout@bzzt.net>
On this device we don't need the openwrt kernel or patches. The
newer kernel also fixes the weird one minute pause at boot when
it was doing something with either mmc or switch.
