diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index e64fe24d860c9ccffbcee439138baa66717ff170..e1e54258b8220ccae87fdb040fdf646f3732f61d 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -109,7 +109,6 @@ static struct platform_device rtc_device = {
 };
 
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= 0xa4000136,
 	.type		= PORT_SCI,
 	.ops		= &sh770x_sci_port_ops,
 	.regshift	= 1,
@@ -156,7 +155,6 @@ static struct platform_device scif1_device = {
 #if defined(CONFIG_CPU_SUBTYPE_SH7707) || \
     defined(CONFIG_CPU_SUBTYPE_SH7709)
 static struct plat_sci_port scif2_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.type		= PORT_IRDA,
 	.ops		= &sh770x_sci_port_ops,
 	.regshift	= 1,
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index f693f122a2860389cf3f9650a32961f05d73f356..d98a55416306baef40ae6d0407f7b56f3d5d74bf 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -38,7 +38,6 @@ static struct platform_device rtc_device = {
 };
 
 static struct plat_sci_port sci_platform_data = {
-	.port_reg	= 0xffe0001C,
 	.type		= PORT_SCI,
 	.regshift	= 2,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
index 3fc1a3ab634e414f46ea48592b87090a905be861..646918713d9afc3e35a2a0df6edfee2c95830253 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
@@ -20,7 +20,6 @@
 #include <asm/clock.h>
 
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= 0xa405013e,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index 9f47ec950af8c65735542d246ac6be7752fe72d4..6c5cb234aa33bbdddcd0e7309d77fc841704b4a4 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -23,7 +23,6 @@
 
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= 0xa4050160,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -45,7 +44,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -67,7 +65,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -89,7 +86,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
@@ -111,7 +107,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
@@ -133,7 +128,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
index 3ce55884c7878d998abba0cef3bff454b168ff67..c20258b18775727f76637dc6de36bea44ddfebae 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
@@ -290,7 +290,6 @@ static struct platform_device dma1_device = {
 
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -312,7 +311,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -334,7 +332,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -356,7 +353,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -377,7 +373,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -398,7 +393,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };