arm: zynq: Move timer to generic location

Move zynq timer out of mach folder to generic location
and enable it.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Documentation/devicetree/bindings/timer/cadence,ttc-timer.txt

+Cadence TTC - Triple Timer Counter
+
+Required properties:
+- compatible : Should be "cdns,ttc".
+- reg : Specifies base physical address and size of the registers.
+- interrupts : A list of 3 interrupts; one per timer channel.
+- clocks: phandle to the source clock
+
+Example:
+
+ttc0: ttc0@f8001000 {
+	interrupt-parent = <&intc>;
+	interrupts = < 0 10 4 0 11 4 0 12 4 >;
+	compatible = "cdns,ttc";
+	reg = <0xF8001000 0x1000>;
+	clocks = <&cpu_clk 3>;
+};

arch/arm/mach-zynq/Kconfig

@@ -9,5 +9,6 @@ config ARCH_ZYNQ
 	select MIGHT_HAVE_CACHE_L2X0
 	select USE_OF
 	select SPARSE_IRQ
+	select CADENCE_TTC_TIMER
 	help
 	  Support for Xilinx Zynq ARM Cortex A9 Platform

arch/arm/mach-zynq/Makefile

@@ -3,4 +3,4 @@
 #
 
 # Common support
-obj-y				:= common.o timer.o
+obj-y				:= common.o

drivers/clocksource/Kconfig

@@ -31,6 +31,9 @@ config SUNXI_TIMER
 config VT8500_TIMER
 	bool
 
+config CADENCE_TTC_TIMER
+	bool
+
 config CLKSRC_NOMADIK_MTU
 	bool
 	depends on (ARCH_NOMADIK || ARCH_U8500)

drivers/clocksource/Makefile

@@ -19,6 +19,7 @@ obj-$(CONFIG_ARCH_BCM2835)	+= bcm2835_timer.o
 obj-$(CONFIG_SUNXI_TIMER)	+= sunxi_timer.o
 obj-$(CONFIG_ARCH_TEGRA)	+= tegra20_timer.o
 obj-$(CONFIG_VT8500_TIMER)	+= vt8500_timer.o
+obj-$(CONFIG_CADENCE_TTC_TIMER)		+= cadence_ttc_timer.o
 
 obj-$(CONFIG_ARM_ARCH_TIMER)		+= arm_arch_timer.o
 obj-$(CONFIG_CLKSRC_METAG_GENERIC)	+= metag_generic.o