[U-Boot] Chain loading an u-boot from an u-boot

[Stefano Babic <sbabic@denx.de>]

Hi Helmut,

On 04/04/2014 01:13, Simon Glass wrote:

>> 1) add option to 'go' command, which is hard as it has variable arguments
>> 2) add another go command
>> 3) use an environment variable to set the option for 'go'
>>
>> Theoretically I could use a u-boot image to encapsulate the second u-boot
>> and use 'bootm', but I think I'll stumble over the same kind of questions.
> 
> 
> There is already 'dcache off' but I wonder if something like 'go prepare'
> would be useful? Another option is that bootm has a prepare state, but it
> requires an image.

I agree with Simon. If you have not changed your target, you are using a
MX31 and what cleanup_linux for arm1136 does is turning off the caches.
What about if you turn off i-cache and d-cache in einem script before
the go command ?

Best regards,
Stefano

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