ARM: OMAP: Add clock framework for omap2

Add clock framework for omap2.

Based on omap2 clock framework code by Richard Woodruff.

Makefile

@@ -194,7 +194,7 @@ SUBARCH := arm
 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
 
 ARCH		?= $(SUBARCH)
-CROSS_COMPILE	?= arm-linux-
+CROSS_COMPILE	?= arm-xscale-linux-gnu-
 
 # Architecture as present in compile.h
 UTS_MACHINE := $(ARCH)

arch/arm/mach-omap2/Makefile

@@ -3,7 +3,7 @@
 #
 
 # Common support
-obj-y := irq.o io.o mux.o serial.o
+obj-y := irq.o io.o sram-fn.o clock.o mux.o serial.o
 
 obj-$(CONFIG_OMAP_MPU_TIMER)		+= timer-gp.o
 

arch/arm/mach-omap2/io.c

@@ -21,14 +21,15 @@
 #include <asm/arch/mux.h>
 
 extern void omap_sram_init(void);
+extern int omap2_clk_init(void);
 
 /*
  * The machine specific code may provide the extra mapping besides the
  * default mapping provided here.
  */
 static struct map_desc omap2_io_desc[] __initdata = {
-	{ L3_VIRT,	L3_PHYS,	L3_SIZE,	MT_DEVICE },
-	{ L4_VIRT,	L4_PHYS,	L4_SIZE,	MT_DEVICE },
+	{ L3_24XX_VIRT,	L3_24XX_PHYS,	L3_24XX_SIZE,	MT_DEVICE },
+	{ L4_24XX_VIRT,	L4_24XX_PHYS,	L4_24XX_SIZE,	MT_DEVICE },
 };
 
 void __init omap_map_common_io(void)
@@ -36,4 +37,5 @@ void __init omap_map_common_io(void)
 	iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));
 	omap_sram_init();
 	omap2_mux_init();
+	omap2_clk_init();
 }