smc91x on x3proto needs 16-bit access and nowait, which we can now do
through the platform data.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This flattens out the board directories in to individual mach groups,
we will use this for getting rid of unneeded directories, simplifying
the build system, and becoming more coherent with the refactored
arch/sh/include topology.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

We were abusing the resource size for the number of bits, this
has been reworked using proper platform data, so this can be
tidied up now. Boards in general only have a 1-byte wide resource,
which the ioremap_nocache() case already handles.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Now that we have a way of enabling the IRQs, hook up the platform
devices and wrap in to ILSEL for mapping the vectors.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This adds initial support for the SH-X3 prototype board.
Only simple logic for the IRQ controller and the heartbeat driver
for now.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>