Hi Jhon,

Thanks for your suggestion. I tried:
dd if=boot0_sdcard_sun9iw1p1.bin of=/dev/mmcblk0 bs=1024 seek=X

where X = 0, 4, 8, ..

and the board never showed any response - it is just booting from the nand 
(I presume..). Was this what you were suggesting?

If anyone else have a suggestion - I'll be grateful


On Thursday, September 4, 2014 3:01:34 AM UTC+2, Jhon Yi wrote:
>
> I suggest that you'd better ask Merrii to give you the parameters. 
> Otherwise you could first try to dd the boot0 to a clean sd card from 
> 8kB and see if there is any print out from the serial port (just set 
>
 

> the serial port of you computer to 115200n8), if not work, move up 4kB 
> every trial until you see the right output. Do the seem thing to uboot 
> begin from the end of boot0, until you find something meaningful. Plus 
> good luck. 
>
> 2014-09-04 5:00 GMT+08:00 RFat <[email protected] <javascript:>>: 
> > Hi everyone, 
> > 
> > I just got the Optimus board (by Merrii). Seems like a nice hotrod.. 
> > 
> > I am trying to get u-boot running from the sdcard and I saw the 
> binaries: 
> > 
> > u-boot-sun9iw1p1.bin 
> > boot0_sdcard_sun9iw1p1.bin 
> > 
> > in the SDK that poped up recently (A80_SDK_20140728). 
> > 
> > I guess I should be DD-ing these files to the sdcard but I am not sure 
> how. 
> > There must be specific values for the seek option -- does anyone have a 
> clue 
> > (I am not sure whether I am asking a trivial or a hard question..) 
> > 
> > Moreover, this board does not have a FEL or U-boot buttons like other 
> boards 
> > - will it always look for something readable in the sdcard and then 
> moves on 
> > the the nand? 
> > 
> > I guess everyone is very excited about the availability of these A80 
> boards 
> > and this mysterious SDK - the sunxi community is about to have crazy 
> power 
> > from a crazily modest device (ah, the late 80's of Acron paid off..) 
> > 
> > Thanks! 
> > 
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