Trying to boot the board ArmStone A9

[onny]

Hey,
I'm trying to boot the latest ArchLinuxARM-armv7 package from the ArmStone A9 Quad (https://www.fs-net.de/en/products/armstone/armstonea9/) with following, recently released device tree files:

armstonea9q.dts: https://git.project-insanity.org/snippets/5
armstonea9qdl.dtsi: https://git.project-insanity.org/snippets/4

I also wrote an wiki page about this board, which is now outdated since they released a new kernel some days ago: https://wiki.archlinux.org/index.php/Armstone_A9

Unfortunately the serial console doesn't start to print output, so I guess something doesn't work with device tree.
$this->bbcode_second_pass_code('', 'usb start
(Re)start USB...
USB0: lowlevel init failed as HOST
USB1: USB EHCI 1.00
scanning bus 1 for devices... 3 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
armStoneA9 # ext4load usb 0:1 $loadaddr /boot/zImage
5538736 bytes read in 463 ms (11.4 MiB/s)
armStoneA9 # nand read 11000000 FDT

NAND read: device 0 offset 0xa40000, size 0x1c0000
1835008 bytes read: OK
armStoneA9 # bootz $loadaddr - 11000000
Kernel image @ 0x10800000 [ 0x000000 - 0x5483b0 ]
## Flattened Device Tree blob at 11000000
Booting using the fdt blob at 0x11000000
EHCI failed to shut down host controller.
Loading Device Tree to 4fb66000, end 4fb72a5d ... OK

Starting kernel ...')
How to further debug this issue? Thank you for any hint!

Best regards,
Jonas

[WarheadsSE]

Kernel arguments for earlyprintk and console=XXXX might be useful, even if the DT doesn't give you much. Remember also that baudrates may change.

[onny]

Tried that too, but still no luck
This is the default uboot environement: https://git.project-insanity.org/snippets/6

[onny]

It's interesting to see the diff between the two kernel configs:

kernel 4.1 config from the manufacturer: https://git.project-insanity.org/snippets/8
where as this is the latest archlinux armv7 config: https://git.project-insanity.org/snippets/7