rtc: add support of mx27 rtc

This driver has been tested on board armadeus apf27.

Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
Acked-by: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/include/asm/arch-mx27/imx-regs.h b/arch/arm/include/asm/arch-mx27/imx-regs.h
index ced5b2a..f7cf85b 100644
--- a/arch/arm/include/asm/arch-mx27/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx27/imx-regs.h
@@ -24,6 +24,8 @@
 #ifndef _IMX_REGS_H
 #define _IMX_REGS_H
 
+#include <asm/arch/regs-rtc.h>
+
 #ifndef __ASSEMBLY__
 
 extern void imx_gpio_mode (int gpio_mode);
@@ -224,6 +226,7 @@
 #define IMX_TIM1_BASE		(0x03000 + IMX_IO_BASE)
 #define IMX_TIM2_BASE		(0x04000 + IMX_IO_BASE)
 #define IMX_TIM3_BASE		(0x05000 + IMX_IO_BASE)
+#define IMX_RTC_BASE		(0x07000 + IMX_IO_BASE)
 #define UART1_BASE		(0x0a000 + IMX_IO_BASE)
 #define UART2_BASE		(0x0b000 + IMX_IO_BASE)
 #define UART3_BASE		(0x0c000 + IMX_IO_BASE)