Today the SDK for AM335x/AM437x loads kernel/dtb from the boot partition, but
all K3 devices load kernel/dtb from the root partition. This inconsistency
confuses customers.
Is it possible to locate 'extlinux.conf' on boot partition with kernel/dtb on
root partition ?
This old link explains
From: Tom Rini
To make use of the "generic distro boot" support in U-Boot, an
extlinux.conf file needs to be generated and reside in the extlinux
directory. The extlinux.conf file will be parsed by U-Boot and the
"append" line will be evaluated and expanded and used entirely as the
bootargs
