[U-Boot] porting u-boot, MMU question

[Stefano Babic]

Hi Dave,

On 05/11/2014 18:16, DaveKucharczyk wrote:

> Stefano Babic wrote
>> You do not need to care about that. Cache is activated per default with
>> mx5/mx6, if you do not explicitely deactivate it in your config file.
>> You do not need to bother about MMU setup in your board files.
> 
> Ok thanks. Why did the old U-Boot (2009.08) loco board file have the MMU
> stuff and the new U-Boot (2014.07) loco board file doesn't? 

It is not true. Old mainline U-Boot has never had that MMU stuff. U-Boot
uses flat address space and MMU is setup only for enabling cache.
If you check in mainline tree for the 2009.8 tag, you will find no MMU
stuff at all. Your "old" U-Boot was delivered by the manufacturer and
not supported by the community.

Best regards,
Stefano Babic


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