sh: Add SH7785 Highlander board support (R7785RP).

This adds preliminary support for the SH7785-based Highlander board.
Some of the Highlander support code is reordered so that most of it
can be reused directly.

This also plugs in missing SH7785 checks in the places that need it,
as this is the first board to support the CPU.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/drivers/Kconfig b/arch/sh/drivers/Kconfig
index c54c758..420c6b2 100644
--- a/arch/sh/drivers/Kconfig
+++ b/arch/sh/drivers/Kconfig
@@ -1,5 +1,15 @@
+source "arch/sh/drivers/dma/Kconfig"
+source "arch/sh/cchips/Kconfig"
+
 menu "Additional SuperH Device Drivers"
 
+config HEARTBEAT
+	bool "Heartbeat LED"
+	help
+	  Use the power-on LED on your machine as a load meter.  The exact
+	  behavior is platform-dependent, but normally the flash frequency is
+	  a hyperbolic function of the 5-minute load average.
+
 config PUSH_SWITCH
 	tristate "Push switch support"
 	help