testing barebox on calao sbc35-a9260 board

[Sascha Hauer]

On Mon, Jun 28, 2010 at 11:32:15AM +0300, Baruch Siach wrote:
> Hi Sascha,
> 
> On Mon, Jun 28, 2010 at 10:04:42AM +0200, Sascha Hauer wrote:
> > On Fri, Jun 25, 2010 at 11:31:49AM +0200, Belisko Marek wrote:
> > > I have a calao board sbc35-a9260 with u-boot pre-installed on it.
> > > I would like to try barebox running on that board (also make some development).
> > > I build at91sam9260ek_defconfig to try it out. I became to situation
> > > that I don't know how to load image to board :)
> > > 
> > > I try via tftp but u-boot automatically try to boot it and I got some
> > > error about magic number.
> > > I think about possibility just download binary to some RAM address and
> > > then use go command in u-boot
> > > to test if barebox binary will work.
> > > 
> > > There exist some how-to or example how to do this?
> > 
> > It's perfectly fine to start barebox from U-Boot with the 'go' command.
> > Try 'setenv autostart no' in U-Boot to stop U-Boot from autostarting
> > images.
> 
> Is there a way to do the same on Barebox? Currently 'go barebox.bin' in ramfs 
> returns -EINVAL from memmap.

If stored in a file it is indeed not runnable as the file is fragmented
in memory. It would be possible to copy it to a linear memory to memmap
it, but currently this is not implemented and I'm not sure this is a
good idea. It's possible to do a 'tftp barebox.bin /dev/ram0; go
/dev/ram0' instead. (or 'memcpy -s barebox.bin <sdramadr> 0x0 <size>; go
<sdramadr> if the file is already in the filesystem)

Sascha


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