U-boot sources for Banana PI M2 Ultra


I’m looking for working sources of u-boot for M2 Ultra. I tried several u-boot’s among others from uboot-sunxi or uboot-nisenbeck, recompiled them but none of them started at my M2 Ultra. Then after successfull compilation I wrote given uboot on SD card with dd command:

dd if=uboot-sun-8iw11p1.bin of=/dev/sdc bs=1024 seek=40

but after I powered the M2 ultra board - no messages appeared on serial console and only red led was on.

Any ideas where can I find the sources? Or maybe I’m doing something wrong?

you should do:

dd if=/dev/zero of=/dev/sdb bs=1K count=1023 seek=1

and then

dd if=uboot-sun-8iw11p1.bin of=/dev/sdb bs=1024 seek=8

but, at first:

  1. format yours sdcard
  2. create mbr table
  3. create first partition (vfat) with size 100B
  4. create second partition (ext4) 2+ GB
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