arm: mx50: add core functions support except clock

Add core definitions and memory map, gpio, irq, iomux, uart device
support.

Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx5/Makefile b/arch/arm/mach-mx5/Makefile
index 026cd85..e059c30 100644
--- a/arch/arm/mach-mx5/Makefile
+++ b/arch/arm/mach-mx5/Makefile
@@ -4,6 +4,7 @@
 
 # Object file lists.
 obj-y   := cpu.o mm.o clock-mx51-mx53.o devices.o
+obj-$(CONFIG_SOC_IMX50) += mm-mx50.o
 
 obj-$(CONFIG_CPU_FREQ_IMX)    += cpu_op-mx51.o
 obj-$(CONFIG_MACH_MX51_BABBAGE) += board-mx51_babbage.o