Literally adhering to the docs gave this wrong output:
U-Boot> setenv fdtaddr 0x87f00000
U-Boot> fdtaddr $fdtaddr
Unknown command 'fdtaddr' - try 'help'
Fixes: d80162cfc5 ("doc: Document how to apply fdt overlays")
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>