I'm trying to upgrade my openwrt from 18 to 19 on a mips targer (mt7628 SOC)
The image generation is done but the kernel does not boot, here is the error:
[ 0.000000] NR_IRQS: 256
[ 0.000000] Kernel panic - not syncing: Failed to find ralink,mt7620a-sysc node
[ 0.000000] Rebooting in 1 seconds..
[ 0.000000] Reboot failed -- System halted
it seems to be a device tree issue related to the tool "patch-dtb"
When i compare my openwrt18 generation and my openwrt19 generation, the patch-dtb tool is not called on the kernel-image.bin
is it normal ? what is the purpose of this tool ? merging the dtb within the kernel ?, i would like to understand this step of the image generation process
Thank's for help !