I u-boot fails to compile

[Oleksandr Tymoshenko]

On 2/28/2013 4:28 PM, XiaoQI Ge wrote:
> I compiled the file size of 22,016 Byte / occupied space of 24,576 
> Byte is rather http://people.freebsd.org/ ~~ ganbold / cubieboard / 
> sunxi-spl.bin size and space are 20,480 Byte is not where Iwrong ah?
>
> These files produced the SD card can not start
> ===
> dd if = / dev / zero of = a10.img bs = 1m count = 1
> dd if = sunxi-spl.bin conv = notrunc of = a10.img bs = 1024 seek = 8
> dd if = u-boot.bin conv = notrunc of = a10.img bs = 1024 seek = 32
> dd if = a10.img of = $ {DEVNAME} bs = 1m
> ===

Which commands did you use to compile u-boot?
What's printed on serial console when you're trying to boot device?