diff --git a/include/asm-arm/arch-s3c2410/regs-serial.h b/include/asm-arm/arch-s3c2410/regs-serial.h
index 46f52401d132..8946702a87f5 100644
--- a/include/asm-arm/arch-s3c2410/regs-serial.h
+++ b/include/asm-arm/arch-s3c2410/regs-serial.h
@@ -35,10 +35,12 @@
 #define S3C24XX_VA_UART0      (S3C24XX_VA_UART)
 #define S3C24XX_VA_UART1      (S3C24XX_VA_UART + 0x4000 )
 #define S3C24XX_VA_UART2      (S3C24XX_VA_UART + 0x8000 )
+#define S3C24XX_VA_UART3      (S3C24XX_VA_UART + 0xC000 )
 
 #define S3C2410_PA_UART0      (S3C24XX_PA_UART)
 #define S3C2410_PA_UART1      (S3C24XX_PA_UART + 0x4000 )
 #define S3C2410_PA_UART2      (S3C24XX_PA_UART + 0x8000 )
+#define S3C2443_PA_UART3      (S3C24XX_PA_UART + 0xC000 )
 
 #define S3C2410_URXH	  (0x24)
 #define S3C2410_UTXH	  (0x20)
@@ -73,6 +75,8 @@
 #define S3C2440_UCON_UCLK	  (1<<10)
 #define S3C2440_UCON_PCLK2	  (2<<10)
 #define S3C2440_UCON_FCLK	  (3<<10)
+#define S3C2443_UCON_EPLL	  (3<<10)
+
 #define S3C2440_UCON2_FCLK_EN	  (1<<15)
 #define S3C2440_UCON0_DIVMASK	  (15 << 12)
 #define S3C2440_UCON1_DIVMASK	  (15 << 12)
@@ -93,6 +97,8 @@
 #define S3C2410_UCON_TXIRQMODE	  (1<<2)
 #define S3C2410_UCON_RXIRQMODE	  (1<<0)
 #define S3C2410_UCON_RXFIFO_TOI	  (1<<7)
+#define S3C2443_UCON_RXERR_IRQEN  (1<<6)
+#define S3C2443_UCON_LOOPBACK	  (1<<5)
 
 #define S3C2410_UCON_DEFAULT	  (S3C2410_UCON_TXILEVEL  | \
 				   S3C2410_UCON_RXILEVEL  | \
@@ -127,7 +133,7 @@
 #define	S3C2410_UMCOM_AFC	  (1<<4)
 #define	S3C2410_UMCOM_RTS_LOW	  (1<<0)
 
-#define S3C2412_UMCON_AFC_63	(0<<5)
+#define S3C2412_UMCON_AFC_63	(0<<5)		/* same as s3c2443 */
 #define S3C2412_UMCON_AFC_56	(1<<5)
 #define S3C2412_UMCON_AFC_48	(2<<5)
 #define S3C2412_UMCON_AFC_40	(3<<5)
@@ -143,6 +149,7 @@
 #define S3C2410_UFSTAT_RXMASK	  (15<<0)
 #define S3C2410_UFSTAT_RXSHIFT	  (0)
 
+/* UFSTAT S3C2443 same as S3C2440 */
 #define S3C2440_UFSTAT_TXFULL	  (1<<14)
 #define S3C2440_UFSTAT_RXFULL	  (1<<6)
 #define S3C2440_UFSTAT_TXSHIFT	  (8)
@@ -157,6 +164,8 @@
 #define S3C2410_UERSTAT_OVERRUN	  (1<<0)
 #define S3C2410_UERSTAT_FRAME	  (1<<2)
 #define S3C2410_UERSTAT_BREAK	  (1<<3)
+#define S3C2443_UERSTAT_PARITY	  (1<<1)
+
 #define S3C2410_UERSTAT_ANY	  (S3C2410_UERSTAT_OVERRUN | \
 				   S3C2410_UERSTAT_FRAME | \
 				   S3C2410_UERSTAT_BREAK)
@@ -164,6 +173,8 @@
 #define S3C2410_UMSTAT_CTS	  (1<<0)
 #define S3C2410_UMSTAT_DeltaCTS	  (1<<2)
 
+#define S3C2443_DIVSLOT		  (0x2C)
+
 #ifndef __ASSEMBLY__
 
 /* struct s3c24xx_uart_clksrc