[ARM] 3675/2: Preparing for AT91SAM926 support

Patch from Andrew Victor

This prepares the way for adding support for the new Atmel AT91SAM926x
processors.

Major changes:
- Rename time.c to at91rm9200_time.c
- Rename common.c to at91rm9200.c
- Introduce ARCH_AT91, of which ARCH_AT91RM9200, ARCH_AT91SAM9260 and
ARCH_AT91SAM9261 are dependent.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91rm9200/Makefile b/arch/arm/mach-at91rm9200/Makefile
index 82db957..c174805 100644
--- a/arch/arm/mach-at91rm9200/Makefile
+++ b/arch/arm/mach-at91rm9200/Makefile
@@ -2,14 +2,19 @@
 # Makefile for the linux kernel.
 #
 
-obj-y		:= clock.o irq.o time.o gpio.o common.o devices.o
+obj-y		:= clock.o irq.o gpio.o devices.o
 obj-m		:=
 obj-n		:=
 obj-		:=
 
 obj-$(CONFIG_PM)		+= pm.o
 
-# Board-specific support
+# CPU-specific support
+obj-$(CONFIG_ARCH_AT91RM9200)	+= at91rm9200.o at91rm9200_time.o
+obj-$(CONFIG_ARCH_AT91SAM9260)	+=
+obj-$(CONFIG_ARCH_AT91SAM9261)	+=
+
+# AT91RM9200 Board-specific support
 obj-$(CONFIG_MACH_ONEARM)	+= board-1arm.o
 obj-$(CONFIG_ARCH_AT91RM9200DK)	+= board-dk.o
 obj-$(CONFIG_MACH_AT91RM9200EK)	+= board-ek.o
@@ -20,6 +25,10 @@
 obj-$(CONFIG_MACH_ATEB9200)	+= board-eb9200.o
 obj-$(CONFIG_MACH_KAFA)		+= board-kafa.o
 
+# AT91SAM9260 board-specific support
+
+# AT91SAM9261 board-specific support
+
 # LEDs support
 led-$(CONFIG_ARCH_AT91RM9200DK)	+= leds.o
 led-$(CONFIG_MACH_AT91RM9200EK)	+= leds.o