diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
index afba2d2..00a9b39 100644
--- a/drivers/serial/serial_sh.c
+++ b/drivers/serial/serial_sh.c
@@ -30,25 +30,20 @@
 #error "Default SCIF doesn't set....."
 #endif
 
-#if defined(CONFIG_SH3)
-/* There are SH7720's register */
-#define SCSMR	(volatile unsigned short *)(SCIF_BASE + 0x0)
-#define SCBRR	(volatile unsigned char  *)(SCIF_BASE + 0x4)
-#define SCSCR	(volatile unsigned short *)(SCIF_BASE + 0x8)
-#define SCFSR	(volatile unsigned short *)(SCIF_BASE + 0x14)   /* SCSSR */
-#define SCFCR	(volatile unsigned short *)(SCIF_BASE + 0x18)
-#define SCFDR	(volatile unsigned short *)(SCIF_BASE + 0x1C)
-#define SCFTDR	(volatile unsigned char  *)(SCIF_BASE + 0x20)
-#define SCFRDR	(volatile unsigned char  *)(SCIF_BASE + 0x24)
+/* Base register */
+#define SCSMR	(vu_short *)(SCIF_BASE + 0x0)
+#define SCBRR	(vu_char  *)(SCIF_BASE + 0x4)
+#define SCSCR	(vu_short *)(SCIF_BASE + 0x8)
+#define SCFCR	(vu_short *)(SCIF_BASE + 0x18)
+#define SCFDR	(vu_short *)(SCIF_BASE + 0x1C)
+#ifdef CONFIG_SH7720 /* SH7720 specific */
+#define SCFSR	(vu_short *)(SCIF_BASE + 0x14)   /* SCSSR */
+#define SCFTDR	(vu_char  *)(SCIF_BASE + 0x20)
+#define SCFRDR	(vu_char  *)(SCIF_BASE + 0x24)
 #else
-#define SCSMR 	(vu_short *)(SCIF_BASE + 0x0)
-#define SCBRR 	(vu_char  *)(SCIF_BASE + 0x4)
-#define SCSCR 	(vu_short *)(SCIF_BASE + 0x8)
 #define SCFTDR 	(vu_char  *)(SCIF_BASE + 0xC)
 #define SCFSR 	(vu_short *)(SCIF_BASE + 0x10)
 #define SCFRDR 	(vu_char  *)(SCIF_BASE + 0x14)
-#define SCFCR 	(vu_short *)(SCIF_BASE + 0x18)
-#define SCFDR 	(vu_short *)(SCIF_BASE + 0x1C)
 #endif
 
 #if defined(CONFIG_SH4A)
@@ -62,7 +57,11 @@
 #define SCLSR 	(vu_short *)(SCIF_BASE + 0x24)
 #define LSR_ORER	1
 #elif defined (CONFIG_SH3)
-#define SCLSR	SCFSR	/* SCSSR */
+#ifdef CONFIG_SH7720 /* SH7720 specific */
+# define SCLSR	SCFSR	/* SCSSR */
+#else
+# define SCLSR   (vu_short *)(SCIF_BASE + 0x24)
+#endif
 #define LSR_ORER	0x0200
 #endif
 
diff --git a/include/asm-sh/cpu_sh3.h b/include/asm-sh/cpu_sh3.h
index 68679c0..6db38a2 100644
--- a/include/asm-sh/cpu_sh3.h
+++ b/include/asm-sh/cpu_sh3.h
@@ -31,7 +31,9 @@
 #define CACHE_OC_NUM_ENTRIES	256
 #define CACHE_OC_ENTRY_SHIFT	4
 
-#if defined(CONFIG_CPU_SH7720)
+#if defined(CONFIG_CPU_SH7710)
+#include <asm/cpu_sh7710.h>
+#elif defined(CONFIG_CPU_SH7720)
 #include <asm/cpu_sh7720.h>
 #else
 #error "Unknown SH3 variant"
diff --git a/include/asm-sh/cpu_sh7710.h b/include/asm-sh/cpu_sh7710.h
new file mode 100644
index 0000000..e223f1c
--- /dev/null
+++ b/include/asm-sh/cpu_sh7710.h
@@ -0,0 +1,64 @@
+#ifndef _ASM_CPU_SH7710_H_
+#define _ASM_CPU_SH7710_H_
+
+#define CACHE_OC_NUM_WAYS	4
+#define CCR_CACHE_INIT	0x0000000D
+
+/* MMU and Cache control */
+#define MMUCR		0xFFFFFFE0
+#define CCR		0xFFFFFFEC
+
+/* PFC */
+#define PACR		0xA4050100
+#define PBCR		0xA4050102
+#define PCCR		0xA4050104
+#define PETCR		0xA4050106
+
+/* Port Data Registers */
+#define PADR		0xA4050120
+#define PBDR		0xA4050122
+#define PCDR		0xA4050124
+
+/* BSC */
+#define CMNCR		0xA4FD0000
+#define CS0BCR		0xA4FD0004
+#define CS2BCR		0xA4FD0008
+#define CS3BCR		0xA4FD000C
+#define CS4BCR		0xA4FD0010
+#define CS5ABCR		0xA4FD0014
+#define CS5BBCR		0xA4FD0018
+#define CS6ABCR		0xA4FD001C
+#define CS6BBCR		0xA4FD0020
+#define CS0WCR		0xA4FD0024
+#define CS2WCR		0xA4FD0028
+#define CS3WCR		0xA4FD002C
+#define CS4WCR		0xA4FD0030
+#define CS5AWCR		0xA4FD0034
+#define CS5BWCR		0xA4FD0038
+#define CS6AWCR		0xA4FD003C
+#define CS6BWCR		0xA4FD0040
+
+/* SDRAM controller */
+#define SDCR		0xA4FD0044
+#define RTCSR		0xA4FD0048
+#define RTCNT		0xA4FD004C
+#define RTCOR		0xA4FD0050
+
+/* SCIF */
+#define SCSMR_0		0xA4400000
+#define SCIF0_BASE	SCSMR_0
+#define SCSMR_0		0xA4410000
+#define SCIF1_BASE	SCSMR_1
+
+/* Timer */
+#define TSTR0		0xA412FE92
+#define TSTR		TSTR0
+#define TCNT0		0xa412FE98
+#define TCR0		0xa412FE9C
+
+/* On chip oscillator circuits */
+#define FRQCR		0xA415FF80
+#define WTCNT		0xA415FF84
+#define WTCSR		0xA415FF86
+
+#endif	/* _ASM_CPU_SH7710_H_ */