[ARM] pxa/zeus: make Viper pcmcia support more generic to support Zeus

The Arcom Zeus CF slot requires the same kind of support as the Viper.
To avoid code duplication, introduce a platform device that abstracts
the differences.

This also allows for the removal of the ugly export of viper_cf_rst().

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index fc553e8..e6d8e10 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -63,6 +63,7 @@
 	select HAVE_PWM
 	select PXA_HAVE_BOARD_IRQS
 	select PXA_HAVE_ISA_IRQS
+	select ARCOM_PCMCIA
 
 config MACH_ARCOM_ZEUS
 	bool "Arcom/Eurotech ZEUS SBC"
@@ -70,6 +71,7 @@
 	select ISA
 	select PXA_HAVE_BOARD_IRQS
 	select PXA_HAVE_ISA_IRQS
+	select ARCOM_PCMCIA
 
 config MACH_BALLOON3
 	bool "Balloon 3 board"
@@ -186,6 +188,11 @@
 
 endchoice
 
+config ARCOM_PCMCIA
+	bool
+	help
+	  Generic option for Arcom Viper/Zeus PCMCIA
+
 config TRIZEPS_PCMCIA
 	bool
 	help