From c8098218271d19e7123d8b9137b9a4b87e5ffec0 Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 19 Jan 2010 19:38:36 +0900
Subject: [PATCH] sh: mach-sdk7786: Detect/configure/propagate EXTAL.

This uses the mode pins exposed through the FPGA to work out whether
we're driven from EXTAL or not and does the appropriate setup and
propagation through the clock framework.

This will also -EINVAL out for anyone adding in their own oscillators,
forcing proper configuration with the clock framework instead of
proceeding on with bogus clock values.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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