[PATCH 7/9] documentation: iommu: add description of ARM System MMU binding

On Fri, Jun 21, 2013 at 02:55:08PM +0100, Joerg Roedel wrote:

On Fri, Jun 21, 2013 at 10:57:29AM +0100, Will Deacon wrote:

quoted

This is a common driver that will support any IOMMUs compatible with v1 or
v2 of the ARM SMMU architecture. Currently, that includes SMMUs known
informatively as MMU-400, MMU-401 and MMU-500. I had a look at the other
IOMMU drivers in the kernel and they seem to be driving incompatible IOMMUs,
so I don't see how this driver can replace those.

However, we'll hopefully see ARM SMMU-compatible devices turning up soon (I
know of many SoCs in development that are looking at them).

That sounds great. So in the future there will be a single driver for
most future SOCs. This is a real improvement over the current situation.

From NVidia is another driver with 'smmu' in its name, is that one also
incompatible?

Yup. I even checked with Stephen Warren before I started my driver, just in
case :)

Will