serial: sh-sci: Abstract register maps.

This takes a bit of a sledgehammer to the horribly CPU subtype
ifdef-ridden header and abstracts all of the different register layouts
in to distinct types which in turn can be overriden on a per-port basis,
or permitted to default to the map matching the port type at probe time.

In the process this ultimately fixes up inumerable bugs with mismatches
on various CPU types (particularly the legacy ones that were obviously
broken years ago and no one noticed) and provides a more tightly coupled
and consolidated platform for extending and implementing generic
features.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

19 files changed, 189 insertions, 15 deletions

diff --git a/arch/sh/kernel/cpu/sh3/Makefile b/arch/sh/kernel/cpu/sh3/Makefile
index ecab274141a8..6f13f33a35ff 100644
--- a/arch/sh/kernel/cpu/sh3/Makefile
+++ b/arch/sh/kernel/cpu/sh3/Makefile
@@ -7,15 +7,15 @@ obj-y	:= ex.o probe.o entry.o setup-sh3.o
 obj-$(CONFIG_HIBERNATION)               += swsusp.o
 
 # CPU subtype setup
-obj-$(CONFIG_CPU_SUBTYPE_SH7705)        += setup-sh7705.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7706)        += setup-sh770x.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7707)        += setup-sh770x.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7708)        += setup-sh770x.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7709)        += setup-sh770x.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7710)        += setup-sh7710.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7712)        += setup-sh7710.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7720)        += setup-sh7720.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7721)        += setup-sh7720.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7705)        += setup-sh7705.o serial-sh770x.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7706)        += setup-sh770x.o serial-sh770x.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7707)        += setup-sh770x.o serial-sh770x.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7708)        += setup-sh770x.o serial-sh770x.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7709)        += setup-sh770x.o serial-sh770x.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7710)        += setup-sh7710.o serial-sh7710.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7712)        += setup-sh7710.o serial-sh7710.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7720)        += setup-sh7720.o serial-sh7720.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7721)        += setup-sh7720.o serial-sh7720.o
 
 # Primary on-chip clocks (common)
 clock-$(CONFIG_CPU_SH3)                 := clock-sh3.o
diff --git a/arch/sh/kernel/cpu/sh3/serial-sh770x.c b/arch/sh/kernel/cpu/sh3/serial-sh770x.c
new file mode 100644
index 000000000000..4f7242c676b3
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh3/serial-sh770x.c
@@ -0,0 +1,33 @@
+#include <linux/serial_sci.h>
+#include <linux/serial_core.h>
+#include <linux/io.h>
+#include <cpu/serial.h>
+
+#define SCPCR 0xA4000116
+#define SCPDR 0xA4000136
+
+static void sh770x_sci_init_pins(struct uart_port *port, unsigned int cflag)
+{
+        unsigned short data;
+
+        /* We need to set SCPCR to enable RTS/CTS */
+        data = __raw_readw(SCPCR);
+        /* Clear out SCP7MD1,0, SCP6MD1,0, SCP4MD1,0*/
+        __raw_writew(data & 0x0fcf, SCPCR);
+
+        if (!(cflag & CRTSCTS)) {
+                /* We need to set SCPCR to enable RTS/CTS */
+                data = __raw_readw(SCPCR);
+                /* Clear out SCP7MD1,0, SCP4MD1,0,
+                   Set SCP6MD1,0 = {01} (output)  */
+                __raw_writew((data & 0x0fcf) | 0x1000, SCPCR);
+
+                data = __raw_readb(SCPDR);
+                /* Set /RTS2 (bit6) = 0 */
+                __raw_writeb(data & 0xbf, SCPDR);
+        }
+}
+
+struct plat_sci_port_ops sh770x_sci_port_ops = {
+        .init_pins      = sh770x_sci_init_pins,
+};
diff --git a/arch/sh/kernel/cpu/sh3/serial-sh7710.c b/arch/sh/kernel/cpu/sh3/serial-sh7710.c
new file mode 100644
index 000000000000..42190ef6aebf
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh3/serial-sh7710.c
@@ -0,0 +1,20 @@
+#include <linux/serial_sci.h>
+#include <linux/serial_core.h>
+#include <linux/io.h>
+#include <cpu/serial.h>
+
+#define PACR 0xa4050100
+#define PBCR 0xa4050102
+
+static void sh7710_sci_init_pins(struct uart_port *port, unsigned int cflag)
+{
+        if (port->mapbase == 0xA4400000) {
+                __raw_writew(__raw_readw(PACR) & 0xffc0, PACR);
+                __raw_writew(__raw_readw(PBCR) & 0x0fff, PBCR);
+        } else if (port->mapbase == 0xA4410000)
+                __raw_writew(__raw_readw(PBCR) & 0xf003, PBCR);
+}
+
+struct plat_sci_port_ops sh7710_sci_port_ops = {
+        .init_pins      = sh7710_sci_init_pins,
+};
diff --git a/arch/sh/kernel/cpu/sh3/serial-sh7720.c b/arch/sh/kernel/cpu/sh3/serial-sh7720.c
new file mode 100644
index 000000000000..8234e1e7abd9
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh3/serial-sh7720.c
@@ -0,0 +1,36 @@
+#include <linux/serial_sci.h>
+#include <linux/serial_core.h>
+#include <linux/io.h>
+#include <cpu/serial.h>
+
+static void sh7720_sci_init_pins(struct uart_port *port, unsigned int cflag)
+{
+        unsigned short data;
+
+        if (cflag & CRTSCTS) {
+                /* enable RTS/CTS */
+                if (port->mapbase == 0xa4430000) { /* SCIF0 */
+                        /* Clear PTCR bit 9-2; enable all scif pins but sck */
+                        data = __raw_readw(PORT_PTCR);
+                        __raw_writew((data & 0xfc03), PORT_PTCR);
+                } else if (port->mapbase == 0xa4438000) { /* SCIF1 */
+                        /* Clear PVCR bit 9-2 */
+                        data = __raw_readw(PORT_PVCR);
+                        __raw_writew((data & 0xfc03), PORT_PVCR);
+                }
+        } else {
+                if (port->mapbase == 0xa4430000) { /* SCIF0 */
+                        /* Clear PTCR bit 5-2; enable only tx and rx  */
+                        data = __raw_readw(PORT_PTCR);
+                        __raw_writew((data & 0xffc3), PORT_PTCR);
+                } else if (port->mapbase == 0xa4438000) { /* SCIF1 */
+                        /* Clear PVCR bit 5-2 */
+                        data = __raw_readw(PORT_PVCR);
+                        __raw_writew((data & 0xffc3), PORT_PVCR);
+                }
+        }
+}
+
+struct plat_sci_port_ops sh7720_sci_port_ops = {
+        .init_pins      = sh7720_sci_init_pins,
+};
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
index cd2e702feb7e..2309618c015d 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
@@ -15,6 +15,7 @@
 #include <linux/serial_sci.h>
 #include <linux/sh_timer.h>
 #include <asm/rtc.h>
+#include <cpu/serial.h>
 
 enum {
         UNUSED = 0,
@@ -75,6 +76,8 @@ static struct plat_sci_port scif0_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_4,
         .type           = PORT_SCIF,
         .irqs           = { 56, 56, 56 },
+        .ops            = &sh770x_sci_port_ops,
+        .regtype        = SCIx_SH7705_SCIF_REGTYPE,
 };
 
 static struct platform_device scif0_device = {
@@ -92,6 +95,8 @@ static struct plat_sci_port scif1_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_4,
         .type           = PORT_SCIF,
         .irqs           = { 52, 52, 52 },
+        .ops            = &sh770x_sci_port_ops,
+        .regtype        = SCIx_SH7705_SCIF_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index 6d549792f791..3f3d5fe5892d 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -19,6 +19,7 @@
 #include <linux/serial.h>
 #include <linux/serial_sci.h>
 #include <linux/sh_timer.h>
+#include <cpu/serial.h>
 
 enum {
         UNUSED = 0,
@@ -114,6 +115,8 @@ static struct plat_sci_port scif0_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCI,
         .irqs           = { 23, 23, 23, 0 },
+        .ops            = &sh770x_sci_port_ops,
+        .regshift       = 1,
 };
 
 static struct platform_device scif0_device = {
@@ -133,6 +136,8 @@ static struct plat_sci_port scif1_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 56, 56, 56, 56 },
+        .ops            = &sh770x_sci_port_ops,
+        .regtype        = SCIx_SH3_SCIF_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
@@ -147,11 +152,14 @@ static struct platform_device scif1_device = {
     defined(CONFIG_CPU_SUBTYPE_SH7709)
 static struct plat_sci_port scif2_platform_data = {
         .mapbase        = 0xa4000140,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_TE | SCSCR_RE,
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_IRDA,
         .irqs           = { 52, 52, 52, 52 },
+        .ops            = &sh770x_sci_port_ops,
+        .regshift       = 1,
 };
 
 static struct platform_device scif2_device = {
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
index 365b94a6fcb7..94920345c14d 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
@@ -20,6 +20,7 @@
 #include <linux/serial_sci.h>
 #include <linux/sh_timer.h>
 #include <asm/rtc.h>
+#include <cpu/serial.h>
 
 static struct resource rtc_resources[] = {
         [0] = {
@@ -55,6 +56,8 @@ static struct plat_sci_port scif0_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_4,
         .type           = PORT_SCIF,
         .irqs           = { 80, 80, 80, 80 },
+        .ops            = &sh7720_sci_port_ops,
+        .regtype        = SCIx_SH7705_SCIF_REGTYPE,
 };
 
 static struct platform_device scif0_device = {
@@ -72,6 +75,8 @@ static struct plat_sci_port scif1_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_4,
         .type           = PORT_SCIF,
         .irqs           = { 81, 81, 81, 81 },
+        .ops            = &sh7720_sci_port_ops,
+        .regtype        = SCIx_SH7705_SCIF_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index 8ea26e791187..c10db5b96e59 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -1,5 +1,5 @@
 /*
- * SH7750/SH7751 Setup
+ * SH7091/SH7750/SH7750S/SH7750R/SH7751/SH7751R Setup
  *
  *  Copyright (C) 2006  Paul Mundt
  *  Copyright (C) 2006  Jamie Lenehan
@@ -44,6 +44,7 @@ static struct plat_sci_port sci_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCI,
         .irqs           = { 23, 23, 23, 0 },
+        .regshift       = 2,
 };
 
 static struct platform_device sci_device = {
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
index 78bbf232e391..c0b4c774700e 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -133,6 +133,7 @@ static struct plat_sci_port scif0_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 52, 53, 55, 54 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif0_device = {
@@ -150,6 +151,7 @@ static struct plat_sci_port scif1_platform_data = {
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .irqs           = { 72, 73, 75, 74 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
@@ -167,6 +169,7 @@ static struct plat_sci_port scif2_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 76, 77, 79, 78 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif2_device = {
@@ -184,6 +187,7 @@ static struct plat_sci_port scif3_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCI,
         .irqs           = { 80, 81, 82, 0 },
+        .regshift       = 2,
 };
 
 static struct platform_device scif3_device = {
diff --git a/arch/sh/kernel/cpu/sh4a/Makefile b/arch/sh/kernel/cpu/sh4a/Makefile
index cc122b1d3035..c57fb287011e 100644
--- a/arch/sh/kernel/cpu/sh4a/Makefile
+++ b/arch/sh/kernel/cpu/sh4a/Makefile
@@ -10,7 +10,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7780)	+= setup-sh7780.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7785)        += setup-sh7785.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7786)        += setup-sh7786.o intc-shx3.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7343)        += setup-sh7343.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7722)        += setup-sh7722.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7722)        += setup-sh7722.o serial-sh7722.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7723)        += setup-sh7723.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7724)        += setup-sh7724.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7366)        += setup-sh7366.o
diff --git a/arch/sh/kernel/cpu/sh4a/serial-sh7722.c b/arch/sh/kernel/cpu/sh4a/serial-sh7722.c
new file mode 100644
index 000000000000..59bc3a72702e
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh4a/serial-sh7722.c
@@ -0,0 +1,23 @@
+#include <linux/serial_sci.h>
+#include <linux/serial_core.h>
+#include <linux/io.h>
+
+#define PSCR 0xA405011E
+
+static void sh7722_sci_init_pins(struct uart_port *port, unsigned int cflag)
+{
+        unsigned short data;
+
+        if (port->mapbase == 0xffe00000) {
+                data = __raw_readw(PSCR);
+                data &= ~0x03cf;
+                if (!(cflag & CRTSCTS))
+                        data |= 0x0340;
+
+                __raw_writew(data, PSCR);
+        }
+}
+
+struct plat_sci_port_ops sh7722_sci_port_ops = {
+        .init_pins      = sh7722_sci_init_pins,
+};
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
index 82616af64d62..87773869a2f3 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
@@ -20,6 +20,7 @@
 
 static struct plat_sci_port scif0_platform_data = {
         .mapbase        = 0xffe00000,
+        .port_reg       = 0xa405013e,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_2,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
index 5813d8023619..863249dbf05b 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
@@ -185,6 +185,8 @@ static struct plat_sci_port scif0_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 80, 80, 80, 80 },
+        .ops            = &sh7722_sci_port_ops,
+        .regtype        = SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
 
 static struct platform_device scif0_device = {
@@ -202,6 +204,8 @@ static struct plat_sci_port scif1_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 81, 81, 81, 81 },
+        .ops            = &sh7722_sci_port_ops,
+        .regtype        = SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
@@ -219,6 +223,8 @@ static struct plat_sci_port scif2_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 82, 82, 82, 82 },
+        .ops            = &sh7722_sci_port_ops,
+        .regtype        = SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
 
 static struct platform_device scif2_device = {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index 072382280f96..3c2810d8f72e 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -23,11 +23,13 @@
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
         .mapbase        = 0xffe00000,
+        .port_reg       = 0xa4050160,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 80, 80, 80, 80 },
+        .regtype        = SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
 
 static struct platform_device scif0_device = {
@@ -40,11 +42,13 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
         .mapbase        = 0xffe10000,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 81, 81, 81, 81 },
+        .regtype        = SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
@@ -57,11 +61,13 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
         .mapbase        = 0xffe20000,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 82, 82, 82, 82 },
+        .regtype        = SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
 
 static struct platform_device scif2_device = {
@@ -75,6 +81,7 @@ static struct platform_device scif2_device = {
 static struct plat_sci_port scif3_platform_data = {
         .mapbase        = 0xa4e30000,
         .flags          = UPF_BOOT_AUTOCONF,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_3,
         .type           = PORT_SCIFA,
@@ -91,6 +98,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
         .mapbase        = 0xa4e40000,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_3,
@@ -108,6 +116,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
         .mapbase        = 0xa4e50000,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_3,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
index 0333fe9e3881..8c892887ebd7 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
@@ -256,11 +256,13 @@ static struct platform_device dma1_device = {
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
         .mapbase        = 0xffe00000,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 80, 80, 80, 80 },
+        .regtype        = SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
 
 static struct platform_device scif0_device = {
@@ -273,11 +275,13 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
         .mapbase        = 0xffe10000,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 81, 81, 81, 81 },
+        .regtype        = SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
@@ -290,11 +294,13 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
         .mapbase        = 0xffe20000,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 82, 82, 82, 82 },
+        .regtype        = SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
 
 static struct platform_device scif2_device = {
@@ -307,6 +313,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
         .mapbase        = 0xa4e30000,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE,
         .scbrr_algo_id  = SCBRR_ALGO_3,
@@ -324,6 +331,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
         .mapbase        = 0xa4e40000,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE,
         .scbrr_algo_id  = SCBRR_ALGO_3,
@@ -341,6 +349,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
         .mapbase        = 0xa4e50000,
+        .port_reg       = SCIx_NOT_SUPPORTED,
         .flags          = UPF_BOOT_AUTOCONF,
         .scscr          = SCSCR_RE | SCSCR_TE,
         .scbrr_algo_id  = SCBRR_ALGO_3,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
index 593eca6509b5..00113515f233 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
@@ -23,6 +23,7 @@ static struct plat_sci_port scif0_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 40, 40, 40, 40 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif0_device = {
@@ -40,6 +41,7 @@ static struct plat_sci_port scif1_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 76, 76, 76, 76 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
@@ -57,6 +59,7 @@ static struct plat_sci_port scif2_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_2,
         .type           = PORT_SCIF,
         .irqs           = { 104, 104, 104, 104 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif2_device = {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
index 08add7fa6849..3d4d2075c19a 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
@@ -14,7 +14,6 @@
 #include <linux/serial_sci.h>
 #include <linux/sh_dma.h>
 #include <linux/sh_timer.h>
-
 #include <cpu/dma-register.h>
 
 static struct plat_sci_port scif0_platform_data = {
@@ -24,6 +23,7 @@ static struct plat_sci_port scif0_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 40, 40, 40, 40 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif0_device = {
@@ -41,6 +41,7 @@ static struct plat_sci_port scif1_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 76, 76, 76, 76 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
index 18d8fc136fb2..b29e6340414a 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
@@ -15,9 +15,7 @@
 #include <linux/mm.h>
 #include <linux/sh_dma.h>
 #include <linux/sh_timer.h>
-
 #include <asm/mmzone.h>
-
 #include <cpu/dma-register.h>
 
 static struct plat_sci_port scif0_platform_data = {
@@ -27,6 +25,7 @@ static struct plat_sci_port scif0_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 40, 40, 40, 40 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif0_device = {
@@ -44,6 +43,7 @@ static struct plat_sci_port scif1_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 44, 44, 44, 44 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
@@ -61,6 +61,7 @@ static struct plat_sci_port scif2_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 60, 60, 60, 60 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif2_device = {
@@ -78,6 +79,7 @@ static struct plat_sci_port scif3_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 61, 61, 61, 61 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif3_device = {
@@ -95,6 +97,7 @@ static struct plat_sci_port scif4_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 62, 62, 62, 62 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif4_device = {
@@ -112,6 +115,7 @@ static struct plat_sci_port scif5_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 63, 63, 63, 63 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif5_device = {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index beba32beb6d9..dd5e709f9821 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -1,7 +1,7 @@
 /*
  * SH7786 Setup
  *
- * Copyright (C) 2009 - 2010  Renesas Solutions Corp.
+ * Copyright (C) 2009 - 2011  Renesas Solutions Corp.
  * Kuninori Morimoto <morimoto.kuninori@renesas.com>
  * Paul Mundt <paul.mundt@renesas.com>
  *
@@ -33,6 +33,7 @@ static struct plat_sci_port scif0_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 40, 41, 43, 42 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif0_device = {
@@ -53,6 +54,7 @@ static struct plat_sci_port scif1_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 44, 44, 44, 44 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif1_device = {
@@ -70,6 +72,7 @@ static struct plat_sci_port scif2_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 50, 50, 50, 50 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif2_device = {
@@ -87,6 +90,7 @@ static struct plat_sci_port scif3_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 51, 51, 51, 51 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif3_device = {
@@ -104,6 +108,7 @@ static struct plat_sci_port scif4_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 52, 52, 52, 52 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif4_device = {
@@ -121,6 +126,7 @@ static struct plat_sci_port scif5_platform_data = {
         .scbrr_algo_id  = SCBRR_ALGO_1,
         .type           = PORT_SCIF,
         .irqs           = { 53, 53, 53, 53 },
+        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
 static struct platform_device scif5_device = {