Raspberry Pi2 with u-boot fails to boot after system upgrade

[eule]

Hello all,

I played with booting a raspberry pi 2 with u-boot and finally got it running! Then I thought it would be a good idea to do a full system upgrade (pacman -Syu) and now it fails with this error:

ERROR: Did not find a cmdline Flattened Device Tree

Is there any change with start.elf loading the fdt file?
Any other idea?

Mainly I am doing this in uboot:

fatload mmc 0:1 0x00080000 kernel7.img
fatload mmc 0:1 0x03100000 initramfs-linux.img
bootz ${kernel_addr_r} $ramdisk_addr_r:$filesize ${fdt_addr}

With
kernel_addr_r=0x00080000
ramdisk_addr_r=0x03100000
filesize=73a642
fdt_addr=2e8dac00