Add fsl_iim driver

Add a fsl_iim driver common to i.MX and MPC.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
diff --git a/arch/arm/include/asm/arch-mx31/imx-regs.h b/arch/arm/include/asm/arch-mx31/imx-regs.h
index 5d8d8f4..67fddac 100644
--- a/arch/arm/include/asm/arch-mx31/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx31/imx-regs.h
@@ -574,6 +574,7 @@
 #define CCMR_CKIH	(2 << 1)
 
 #define MX31_IIM_BASE_ADDR	0x5001C000
+#define IIM_BASE_ADDR		MX31_IIM_BASE_ADDR
 
 #define PDR0_CSI_PODF(x)	(((x) & 0x3f) << 26)
 #define PDR0_CSI_PRDF(x)	(((x) & 0x7) << 23)