On Sep 28, 2007, at 2:06 PM, Scott Wood wrote:

The way the current CPM binding describes available multi-user (a.k.a.
dual-ported) RAM doesn't work well when there are multiple free  
regions,
and it doesn't work at all if the region doesn't begin at the start of
the muram area (as the hardware needs to be programmed with offsets  
into
this area).  The latter situation can happen with SMC UARTs on  
CPM2, as its
parameter RAM is relocatable, u-boot puts it at zero, and the  
kernel doesn't
support moving it.

It is now described with a muram node, similar to QE.  The current CPM
binding is sufficiently recent (i.e. never appeared in an official  
release)
that compatibility with existing device trees is not an issue.

The code supporting the new binding is shared between cpm1 and  
cpm2, rather
than remain separated.  QE should be able to use this code as well,  
once
minor fixes are made to its device trees.

Signed-off-by: Scott Wood <redacted>

applied.

- k