Hi,
the following changes since v2:
- Merge device tree binding with the driver code in the same patch.
- Specify that currently, only i.MX27 is supported in device tree binding.
- Replace MACH_MX27 by ARCH_MXC in Kconfig.
- Remove __devexit_p from sahara_remove().

I haven't finally included support for i.MX51 submitted by Arnaud.
I'd rather it to be included in a separate patch later if you
don't mind.

[PATCH v3 1/2] i.MX27: Add clock support for SAHARA2.
[PATCH v3 2/2] crypto: sahara: Add driver for SAHARA2 accelerator.