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

[Timur Tabi]

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.

-- 
Timur Tabi
Linux kernel developer at Freescale