[U-Boot] [PATCH] mpc86xx: set the DDR BATs after calculating true DDR size

[Kumar Gala]

On Mar 30, 2010, at 10:46 AM, Timur Tabi wrote:

> On Mon, Mar 29, 2010 at 11:21 PM, Kumar Gala <galak at kernel.crashing.org> wrote:
>>> Why do we need BATL_MEMCOHERENCE on 8641 but not on 8610?
>> 
>> dual core on 8641, single core on 8610.
> 
> The 8610 does lots of DMA for audio and video.  Don't we need
> coherence for that?  I read the e600 manual, but I couldn't glean
> whether we need the M bit set to make DMA work.

No, "M" in the core is only for other cores, has nothing to do w/DMAs.

- k