Hi Ian,

> I don't have a cubox but I was under the impression that the default
> u-boot environment (at least for the u-boot packaged in Debian) would Do
> The Right Thing.

I still have issues to boot a cubox-i with the u-boot supplied by Debian, but 
maybe I 
install it the wrong way.


u-boot contains for the cubox-i 4 files:

root@bokocube:/usr/lib/u-boot/mx6_cubox-i# ls -l
total 700
-rw-r--r-- 1 root root  39936 May 27 00:40 SPL
-rw-r--r-- 1 root root  34393 May 27 00:39 u-boot-spl.bin
-rw-r--r-- 1 root root 300384 May 27 00:38 u-boot.img
-rw-r--r-- 1 root root 334240 May 27 00:40 uboot.elf
root@bokocube:/usr/lib/u-boot/mx6_cubox-i# 

When I follow in

https://wiki.debian.org/ArmHardFloatPort/CuBox-i

the link

http://imx.solid-run.com/wiki/index.php?title=Building_the_kernel_and_u-boot_for_the_CuBox-i_and_the_HummingBoard#U-Boot_Upstream

there is listed

/     Flashing SPL - /

/ sudo dd if=SPL of=/dev/sdX bs=1K seek=1/

/    Flashing u-boot.img as raw to the micro SD - /

/ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=42/


I assume that applies to the Debian u-boot as well:

root@bokocube:/usr/lib/u-boot/mx6_cubox-i# dd if=SPL of=/dev/mmcblk0 bs=1K 
seek=1
39+0 records in
39+0 records out
39936 bytes (40 kB) copied, 0.0141093 s, 2.8 MB/s
root@bokocube:/usr/lib/u-boot/mx6_cubox-i# dd if=u-boot.img of=/dev/mmcblk0 
bs=1K seek=42
293+1 records in
293+1 records out
300384 bytes (300 kB) copied, 0.0539846 s, 5.6 MB/s
root@bokocube:/usr/lib/u-boot/mx6_cubox-i# # apt-cache policy u-boot
u-boot:
  Installed: 2014.04-2
  Candidate: 2014.04-2
  Version table:
 *** 2014.04-2 0
        500 http://ftp-stud.fht-esslingen.de/debian/ sid/main armhf Packages
        100 /var/lib/dpkg/status
root@bokocube:/usr/lib/u-boot/mx6_cubox-i# 

What are the other two files 

-rw-r--r-- 1 root root  34393 May 27 00:39 u-boot-spl.bin
-rw-r--r-- 1 root root 334240 May 27 00:40 uboot.elf

used for?

E.g. I do not see the environment overwritten to define a default bootcmd 
reading the 
boot.scr.

Thanks,
Rainer


-- 
Rainer Dorsch
http://bokomoko.de/

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