banana-pi-m3 netbsd-9 how to

[Sergio de Almeida Lenzi <lenzi.sergio%gmail.com@localhost>]

Can someone please point me on how to make NetBSD-armv7hf boot
on a banana-pi-m3???  I follow the instruction on: 
https://wiki.netbsd.org/ports/evbarm/install_using_sysinst
but the the machine does not boot. The computer is ok, as an img from
the banana-pi ubuntu loads and runs.

I download the armv7.img.gz image from:

https://nyftp.netbsd.org/pub/NetBSD-daily/netbsd-9/latest/evbarm-earmv7hf/binary/gzimg/armv7.img.gz

On an netbsd81 i386 machine I build the sysutils/u-boot-bananapi-m3
using pkgsrc-2019Q1

than unpack the image with the command gzip -d armv7.img.gz

than I wrote the image on the chip:
dd if=armv7.img of=/dev/rsd0d bs=1m conv=sync
If the chip is inserted on a raspberry pi 3, it boots and works as
expected. Than insert the sunxi uboot into the image with:
dd if=/usr/pkg/share/u-boot/banana-pi-m3/sunxi-with-spl.bin \
	of=/dev/rsd0d bs=1k seek=8 conv=sync
in the site, it says rld0d but I assumed it was a typo...
it reports 370 blocks
the site says that netbsd-9 does not needs any ajustment
but the system does not boot.

Anty ideas???
thanks for any help

Sergio