Increase the kernel size from 3 MB to 4 MB for EA8500 and EA7500v1.
* modify the common .dtsi
* modify the kernel size in the image recipes
Define compat-version 2.0 to force factory image usage for sysupgrade.
Add explanation message. Reenable both devices.
As for 4MiB (and not more): Hannu Nyman noted that:
"We have lots of ipq806x devices with 4 MB kernel, so will
need action at that point in future in any case.
(Assuming that the bootloader did not have a 4 MB limit that
has been tested...)"
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
(squashed, added 4MiB notice of support in ipq806x)
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
The target uses 5.4 as default kernel since 04/2020.
Kernel 4.19 support is not really maintained anymore, and there has
been a lot of changes between 4.19 and 5.4 on this target. Despite,
new devices are typically added for 5.4 only anyway.
Thus, make maintaining of old stuff and reviewing of new stuff
easier by removing support for kernel 4.19.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
