Introducing 8-bit wide register, mx28_register_8

This patch introduces an 8-bit register, mx28_register_8, in order to
prepare for fixing erroneous 32-bit wide access of registers
hw_clkctrl_frac0 and hw_clkctrl_frac1.

Signed-off-by: Robert Delien <robert@delien.nl>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Marek Vasut <marex@denx.de>

arch/arm/include/asm/arch-mx28/regs-common.h

@@ -47,16 +47,32 @@
  *
  */
 
+#define	__mx28_reg_8(name)		\
+	uint8_t	name[4];		\
+	uint8_t	name##_set[4];		\
+	uint8_t	name##_clr[4];		\
+	uint8_t	name##_tog[4];		\
+
 #define	__mx28_reg_32(name)		\
 	uint32_t name;			\
 	uint32_t name##_set;		\
 	uint32_t name##_clr;		\
 	uint32_t name##_tog;
 
+struct mx28_register_8 {
+	__mx28_reg_8(reg)
+};
+
 struct mx28_register_32 {
 	__mx28_reg_32(reg)
 };
 
+#define	mx28_reg_8(name)				\
+	union {						\
+		struct { __mx28_reg_8(name) };		\
+		struct mx28_register_32 name##_reg;	\
+	};
+
 #define	mx28_reg_32(name)				\
 	union {						\
 		struct { __mx28_reg_32(name) };		\