martinayotte

You will need to check boot logs from Serial Debug. Maybe some hint will be shown there ...

I've used the NXP SA56004 in the past, but not necessarily on OPi ...

According to some PM discussion, it seems that distortion on serial is maybe because sound node is enabled, @chwe got some success by disabling it ...

You should never use modprobe, the module should have been loaded automatically by the overlay.

My Serial Debug cable is a custom made one built more than 2 years ago when I got my old Pinebook. It is using a stereo plug along with a normal 3V CH340 USB-TTL Serial adaptor.

Ok ! I found the proper box where my Pine Serial cable was located ... I've figure out that a DEV build (aka 5.5.y) didn't have any PinebookPro DTB compiled, so I temporarily took the one of RockPro64, and booted properly, but only thru serial, LDC display is of course never initialized ! So, next step is to create an actual working DEV PinebookPro DTB, because with a Legacy (aka 4.4.y) PinebookPro DTB, the kernel freeze at some point ...

Right ! Especially That I've provided an example in the 4th post more than three years ago ...

No worries ! I will open the unopened boxes, even if it take days ... That is a bit strange since the goal is to debug boot process ...

I doubt it can be done easily : U-Boot is not aware of F2FS, so it requires that at least the /boot folder to be located in EXT4 or FAT partition. What you can do is to manually shrink the ROOTFS partition and then add a new partition that you will format as F2FS. Then, you can transfer ROOTFS contain to new F2FS partition using tools such "rsync" or "tar|tar", and leave the /boot folder, adjust both /boot/armbianEnv.txt and /etc/fstab to point ROOTFS to the new F2FS.

I was running MrFixIt default image provided on the eMMC for a while, but I was wondering how Armbian would worked. So, after updating U-Boot with MrFixIt, it is now able to boot from SDCard without disturbing eMMC installation. At first, I've tried 5.5.y, but it didn't worked. Then, I've built a Legacy using 4.4.197-1236-rockchip-ayufan, and it was working, I'm using it since few weeks ... I'm wondering what are the differences, I would need to attach my Debug Serial dongle using the audio jack, but it is hidden in some of my moving boxes unopened since 18 months ... Is there someone who has a PinbookPro along with a Debug Serial dongle and willing to give some time for debugging ?

Look at the OPiZero header pinout here : https://linux-sunxi.org/Xunlong_Orange_Pi_Zero#Expansion_Port Then, get/purchase a female USB connector, and solder wires as follow : https://components101.com/connectors/usb-type-a-female Make sure the wires are a short as possible to avoid interferences...

Unfortunately, here is the Armbian forum for Armbian image. No one here can help about FriendlyWRT image ...

Are you sure ? Module seems to be named fbtft.ko, so do "modprobe fbtft" instead ...

Noone is interested to play with old kernel such 3.18 ...

It is not enough to add the spi-spidev overlay, you also need to specify which bus with "param_spidev_spi_bus" parameter. In OPiZero, it is the SPI1 which is expose on header, so, you must add "param_spidev_spi_bus=1" . Be aware that this won't be easy to handle on software side. If I were you, I would go to more easy way : use USB-SdCard adaptor on USB port ... EDIT: If the USB port is already in use, there are 2 other USB ports on the 13 pins header ...