This commit consolidates mkimage.sh scripts into a unified SD card image
creation tool that works for all boards. It needs a bootloader an $ARCH
rootfs.squashfs image and a genimage.cfg.in template.
- Detects build directories from `O=` environment variable or `output/`
- Sources `.config` to discover Buildroot paths
- Uses Buildroot's `support/scripts/genimage.sh` when available
- Automatically generates `.bmap` files if `bmaptool` is available
- Fallback to direct `genimage` invocation if wrapper not found
See the online instructions for usage.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
With the additional support for RPi3, including Zero 2W, this commit renames
all relevant directories and Config.In options to match.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Joachim Wiberg