MX51: add structure to access System Reset Controller

Signed-off-by: Stefano Babic <sbabic@denx.de>

arch/arm/include/asm/arch-mx51/imx-regs.h

@@ -262,6 +262,16 @@ struct gpio_regs {
 	u32	gpio_dir;
 	u32	gpio_psr;
 };
+
+/* System Reset Controller (SRC) */
+struct src {
+	u32	scr;
+	u32	sbmr;
+	u32	srsr;
+	u32	reserved1[2];
+	u32	sisr;
+	u32	simr;
+};
 #endif /* __ASSEMBLER__*/
 
 #endif				/*  __ASM_ARCH_MXC_MX51_H__ */