[SOLVED] how to copy barebox to flash?

[Allen Kennedy Jr.]

This was exactly what I was looking for!
thanks

On Wed, Sep 25, 2013 at 2:55 PM, Sascha Hauer <s.hauer at pengutronix.de> wrote:
> Hi Allen,
>
> On Wed, Sep 25, 2013 at 11:13:47AM -0500, Allen Kennedy Jr. wrote:
>> All,
>>   How do I copy barebox to flash?
>> I have a flash device setup:
>>      `---- imx_nand
>>           `---- nand0
>>                `---- 0x00000000-0x0fffffff: /dev/nand0
>>                `---- 0x00000000-0x0001ffff: /dev/bootstrapper
>>                `---- 0x00020000-0x0005ffff: /dev/barebox
>>                `---- 0x00060000-0x0009ffff: /dev/env_raw
>>                `---- 0x00100000-0x005fffff: /dev/kernel
>>
>> I used JTAG to load barebox into memory at 0xa0000000
>>
>> I just can't figure out how to copy it to flash... There is no DD command...
>> I tried this:
>> cp 0xa0000000 /dev/barebox 0x4000
>> got :
>> cp: target `0x4000' is not a directory
>
> What you're looking for is the memcpy command. It has options to copy
> memory to/from files. You need something like:
>
> memcpy -d /dev/barebox 0xa0000000 0 512k
>
> replace 512k with whatever filesize is appropriate.
>
> See 'help memcpy' or http://wiki.barebox.org/doku.php?id=commands:memcpy
> for more information.
>
>>
>> Seems barebox changed what 'cp' is from the old u-boot way.
>> and the nand command only does bad block handling...
>>
>> barebox-update seems to be a candidate, but the docs don't make sense
>> on how to use.
>
> Yes, that's the correct command, but it needs board support to be
> implemented. With the correct board support the update would go down to:
>
> barebox_update /mnt/tftp/barebox.bin
>
> (It needs a file though, you would have to generate this with memcpy if
> you want to use it together with a raw memory image.)
>
>> Also I was thinking something like md > /dev/nand, but the output of
>> MD is user readable.
>
> Unfortunately the barebox shell is not capable of doing output redirection.
>
> Sascha
>
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