Currently, sysupgrade will only upgrade the unused slot, however since the
whole dual firmware logic is in the bootscript U-boot will just use the
first bootscript it finds.
So, in a case that you are running slot A it will upgrade slot B, however
that means that slot B will be still booted by the old bootscript that came
with the previous firmware version.
This is an issue if you need to change anything, so lets add a custom
function that upgrades the active bootscript as well after flashing the
slot firmware.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
(cherry picked from commit fb7787803c)
Methode uDPU and eDPU devices are one of the rare ones with a completely
custom image format being used with custom partition table with F2FS.
Instead of converting the boards to dual firmware (A/B style) and further
expand the already convoluted custom scripts, especially considering that
dual firmware conversion is a breaking change anyway, lets convert to using
the generic eMMC sysupgrade based images.
F2FS ZSTD compression is preserved thanks to fstools now supporting its use
on overlays.
Dual firmware support is implemented via U-Boot scripts so no U-Boot
upgrade is required.
Since there is a partition table layout change, eMMC must be wiped and
reflashed with the generated GPT image from OpenWrt initramfs.
Then on each sysupgrade the firmware slot will be altered.
Instructions:
1. Boot into OpenWrt initramfs
2. Copy openwrt-mvebu-cortexa53-methode_edpu-squashfs-emmc-gpt.img.gz to
the device into /tmp
3. Erase eMMC:
dd if=/dev/zero of=/dev/mmcblk0 bs=1M
4. Extract image
gzip -d /tmp/openwrt-mvebu-cortexa53-methode_edpu-squashfs-emmc-gpt.img.gz
5. Flash image
dd if=/tmp/openwrt-mvebu-cortexa53-methode_edpu-squashfs-emmc-gpt.img of=/dev/mmcblk0
6. Reboot
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
(cherry picked from commit ada2753d6a)
