Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x

* 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x: (39 commits)
  SH: static should be at beginning of declaration
  sh: move CLKDEV_xxx_ID macro to sh_clk.h
  sh: clock-shx3: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7786: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7785: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7757: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7366: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7343: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7722: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7724: add CLKDEV_ICK_ID for cleanup
  sh: clock-sh7366: modify I2C clock settings
  sh: clock-sh7343: modify I2C clock settings
  sh: clock-sh7723: modify I2C clock settings
  sh: clock-sh7722: modify I2C clock settings
  sh: clock-sh7724: modify I2C clock settings
  serial: sh-sci: Fix up pretty name printing for port IRQs.
  serial: sh-sci: Kill off per-port enable/disable callbacks.
  serial: sh-sci: Add missing module description/author bits.
  serial: sh-sci: Regtype probing doesn't need to be fatal.
  sh: Tidy up pre-clkdev clk_get() error handling.
  ...

6 files changed, 559 insertions, 755 deletions

diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 02833004420..7f49235d14b 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -70,12 +70,36 @@ static u32 sh_dmae_readl(struct sh_dmae_chan *sh_dc, u32 reg)
 
 static u16 dmaor_read(struct sh_dmae_device *shdev)
 {
-	return __raw_readw(shdev->chan_reg + DMAOR / sizeof(u32));
+	u32 __iomem *addr = shdev->chan_reg + DMAOR / sizeof(u32);
+
+	if (shdev->pdata->dmaor_is_32bit)
+		return __raw_readl(addr);
+	else
+		return __raw_readw(addr);
 }
 
 static void dmaor_write(struct sh_dmae_device *shdev, u16 data)
 {
-	__raw_writew(data, shdev->chan_reg + DMAOR / sizeof(u32));
+	u32 __iomem *addr = shdev->chan_reg + DMAOR / sizeof(u32);
+
+	if (shdev->pdata->dmaor_is_32bit)
+		__raw_writel(data, addr);
+	else
+		__raw_writew(data, addr);
+}
+
+static void chcr_write(struct sh_dmae_chan *sh_dc, u32 data)
+{
+	struct sh_dmae_device *shdev = to_sh_dev(sh_dc);
+
+	__raw_writel(data, sh_dc->base + shdev->chcr_offset / sizeof(u32));
+}
+
+static u32 chcr_read(struct sh_dmae_chan *sh_dc)
+{
+	struct sh_dmae_device *shdev = to_sh_dev(sh_dc);
+
+	return __raw_readl(sh_dc->base + shdev->chcr_offset / sizeof(u32));
 }
 
 /*
@@ -120,7 +144,7 @@ static int sh_dmae_rst(struct sh_dmae_device *shdev)
 
 static bool dmae_is_busy(struct sh_dmae_chan *sh_chan)
 {
-	u32 chcr = sh_dmae_readl(sh_chan, CHCR);
+	u32 chcr = chcr_read(sh_chan);
 
 	if ((chcr & (CHCR_DE | CHCR_TE)) == CHCR_DE)
 		return true; /* working */
@@ -130,8 +154,7 @@ static bool dmae_is_busy(struct sh_dmae_chan *sh_chan)
 
 static unsigned int calc_xmit_shift(struct sh_dmae_chan *sh_chan, u32 chcr)
 {
-	struct sh_dmae_device *shdev = container_of(sh_chan->common.device,
-						struct sh_dmae_device, common);
+	struct sh_dmae_device *shdev = to_sh_dev(sh_chan);
 	struct sh_dmae_pdata *pdata = shdev->pdata;
 	int cnt = ((chcr & pdata->ts_low_mask) >> pdata->ts_low_shift) |
 		((chcr & pdata->ts_high_mask) >> pdata->ts_high_shift);
@@ -144,8 +167,7 @@ static unsigned int calc_xmit_shift(struct sh_dmae_chan *sh_chan, u32 chcr)
 
 static u32 log2size_to_chcr(struct sh_dmae_chan *sh_chan, int l2size)
 {
-	struct sh_dmae_device *shdev = container_of(sh_chan->common.device,
-						struct sh_dmae_device, common);
+	struct sh_dmae_device *shdev = to_sh_dev(sh_chan);
 	struct sh_dmae_pdata *pdata = shdev->pdata;
 	int i;
 
@@ -169,18 +191,23 @@ static void dmae_set_reg(struct sh_dmae_chan *sh_chan, struct sh_dmae_regs *hw)
 
 static void dmae_start(struct sh_dmae_chan *sh_chan)
 {
-	u32 chcr = sh_dmae_readl(sh_chan, CHCR);
+	struct sh_dmae_device *shdev = to_sh_dev(sh_chan);
+	u32 chcr = chcr_read(sh_chan);
+
+	if (shdev->pdata->needs_tend_set)
+		sh_dmae_writel(sh_chan, 0xFFFFFFFF, TEND);
 
-	chcr |= CHCR_DE | CHCR_IE;
-	sh_dmae_writel(sh_chan, chcr & ~CHCR_TE, CHCR);
+	chcr |= CHCR_DE | shdev->chcr_ie_bit;
+	chcr_write(sh_chan, chcr & ~CHCR_TE);
 }
 
 static void dmae_halt(struct sh_dmae_chan *sh_chan)
 {
-	u32 chcr = sh_dmae_readl(sh_chan, CHCR);
+	struct sh_dmae_device *shdev = to_sh_dev(sh_chan);
+	u32 chcr = chcr_read(sh_chan);
 
-	chcr &= ~(CHCR_DE | CHCR_TE | CHCR_IE);
-	sh_dmae_writel(sh_chan, chcr, CHCR);
+	chcr &= ~(CHCR_DE | CHCR_TE | shdev->chcr_ie_bit);
+	chcr_write(sh_chan, chcr);
 }
 
 static void dmae_init(struct sh_dmae_chan *sh_chan)
@@ -192,7 +219,7 @@ static void dmae_init(struct sh_dmae_chan *sh_chan)
 	u32 chcr = DM_INC | SM_INC | 0x400 | log2size_to_chcr(sh_chan,
 						   LOG2_DEFAULT_XFER_SIZE);
 	sh_chan->xmit_shift = calc_xmit_shift(sh_chan, chcr);
-	sh_dmae_writel(sh_chan, chcr, CHCR);
+	chcr_write(sh_chan, chcr);
 }
 
 static int dmae_set_chcr(struct sh_dmae_chan *sh_chan, u32 val)
@@ -202,23 +229,25 @@ static int dmae_set_chcr(struct sh_dmae_chan *sh_chan, u32 val)
 		return -EBUSY;
 
 	sh_chan->xmit_shift = calc_xmit_shift(sh_chan, val);
-	sh_dmae_writel(sh_chan, val, CHCR);
+	chcr_write(sh_chan, val);
 
 	return 0;
 }
 
 static int dmae_set_dmars(struct sh_dmae_chan *sh_chan, u16 val)
 {
-	struct sh_dmae_device *shdev = container_of(sh_chan->common.device,
-						struct sh_dmae_device, common);
+	struct sh_dmae_device *shdev = to_sh_dev(sh_chan);
 	struct sh_dmae_pdata *pdata = shdev->pdata;
 	const struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->id];
 	u16 __iomem *addr = shdev->dmars;
-	int shift = chan_pdata->dmars_bit;
+	unsigned int shift = chan_pdata->dmars_bit;
 
 	if (dmae_is_busy(sh_chan))
 		return -EBUSY;
 
+	if (pdata->no_dmars)
+		return 0;
+
 	/* in the case of a missing DMARS resource use first memory window */
 	if (!addr)
 		addr = (u16 __iomem *)shdev->chan_reg;
@@ -296,9 +325,7 @@ static struct sh_desc *sh_dmae_get_desc(struct sh_dmae_chan *sh_chan)
 static const struct sh_dmae_slave_config *sh_dmae_find_slave(
 	struct sh_dmae_chan *sh_chan, struct sh_dmae_slave *param)
 {
-	struct dma_device *dma_dev = sh_chan->common.device;
-	struct sh_dmae_device *shdev = container_of(dma_dev,
-					struct sh_dmae_device, common);
+	struct sh_dmae_device *shdev = to_sh_dev(sh_chan);
 	struct sh_dmae_pdata *pdata = shdev->pdata;
 	int i;
 
@@ -771,10 +798,8 @@ static void sh_chan_xfer_ld_queue(struct sh_dmae_chan *sh_chan)
 
 	spin_lock_bh(&sh_chan->desc_lock);
 	/* DMA work check */
-	if (dmae_is_busy(sh_chan)) {
-		spin_unlock_bh(&sh_chan->desc_lock);
-		return;
-	}
+	if (dmae_is_busy(sh_chan))
+		goto sh_chan_xfer_ld_queue_end;
 
 	/* Find the first not transferred descriptor */
 	list_for_each_entry(desc, &sh_chan->ld_queue, node)
@@ -788,6 +813,7 @@ static void sh_chan_xfer_ld_queue(struct sh_dmae_chan *sh_chan)
 			break;
 		}
 
+sh_chan_xfer_ld_queue_end:
 	spin_unlock_bh(&sh_chan->desc_lock);
 }
 
@@ -846,7 +872,7 @@ static irqreturn_t sh_dmae_interrupt(int irq, void *data)
 
 	spin_lock(&sh_chan->desc_lock);
 
-	chcr = sh_dmae_readl(sh_chan, CHCR);
+	chcr = chcr_read(sh_chan);
 
 	if (chcr & CHCR_TE) {
 		/* DMA stop */
@@ -1144,6 +1170,16 @@ static int __init sh_dmae_probe(struct platform_device *pdev)
 	/* platform data */
 	shdev->pdata = pdata;
 
+	if (pdata->chcr_offset)
+		shdev->chcr_offset = pdata->chcr_offset;
+	else
+		shdev->chcr_offset = CHCR;
+
+	if (pdata->chcr_ie_bit)
+		shdev->chcr_ie_bit = pdata->chcr_ie_bit;
+	else
+		shdev->chcr_ie_bit = CHCR_IE;
+
 	platform_set_drvdata(pdev, shdev);
 
 	pm_runtime_enable(&pdev->dev);
diff --git a/drivers/dma/shdma.h b/drivers/dma/shdma.h
index 5ae9fc51218..dc56576f9fd 100644
--- a/drivers/dma/shdma.h
+++ b/drivers/dma/shdma.h
@@ -47,10 +47,14 @@ struct sh_dmae_device {
 	struct list_head node;
 	u32 __iomem *chan_reg;
 	u16 __iomem *dmars;
+	unsigned int chcr_offset;
+	u32 chcr_ie_bit;
 };
 
 #define to_sh_chan(chan) container_of(chan, struct sh_dmae_chan, common)
 #define to_sh_desc(lh) container_of(lh, struct sh_desc, node)
 #define tx_to_sh_desc(tx) container_of(tx, struct sh_desc, async_tx)
+#define to_sh_dev(chan) container_of(chan->common.device,\
+				     struct sh_dmae_device, common)
 
 #endif	/* __DMA_SHDMA_H */
diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c
index d6702e57d42..dc8d022c07a 100644
--- a/drivers/sh/clk/core.c
+++ b/drivers/sh/clk/core.c
@@ -34,6 +34,9 @@ static LIST_HEAD(clock_list);
 static DEFINE_SPINLOCK(clock_lock);
 static DEFINE_MUTEX(clock_list_sem);
 
+/* clock disable operations are not passed on to hardware during boot */
+static int allow_disable;
+
 void clk_rate_table_build(struct clk *clk,
 			  struct cpufreq_frequency_table *freq_table,
 			  int nr_freqs,
@@ -228,7 +231,7 @@ static void __clk_disable(struct clk *clk)
 		return;
 
 	if (!(--clk->usecount)) {
-		if (likely(clk->ops && clk->ops->disable))
+		if (likely(allow_disable && clk->ops && clk->ops->disable))
 			clk->ops->disable(clk);
 		if (likely(clk->parent))
 			__clk_disable(clk->parent);
@@ -393,7 +396,7 @@ int clk_register(struct clk *clk)
 {
 	int ret;
 
-	if (clk == NULL || IS_ERR(clk))
+	if (IS_ERR_OR_NULL(clk))
 		return -EINVAL;
 
 	/*
@@ -744,3 +747,25 @@ err_out:
 	return err;
 }
 late_initcall(clk_debugfs_init);
+
+static int __init clk_late_init(void)
+{
+	unsigned long flags;
+	struct clk *clk;
+
+	/* disable all clocks with zero use count */
+	mutex_lock(&clock_list_sem);
+	spin_lock_irqsave(&clock_lock, flags);
+
+	list_for_each_entry(clk, &clock_list, node)
+		if (!clk->usecount && clk->ops && clk->ops->disable)
+			clk->ops->disable(clk);
+
+	/* from now on allow clock disable operations */
+	allow_disable = 1;
+
+	spin_unlock_irqrestore(&clock_lock, flags);
+	mutex_unlock(&clock_list_sem);
+	return 0;
+}
+late_initcall(clk_late_init);
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index cb40b82daf3..4dcb37bbdf9 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -959,7 +959,7 @@ config SERIAL_IP22_ZILOG_CONSOLE
 
 config SERIAL_SH_SCI
 	tristate "SuperH SCI(F) serial port support"
-	depends on HAVE_CLK && (SUPERH || H8300 || ARCH_SHMOBILE)
+	depends on HAVE_CLK && (SUPERH || ARCH_SHMOBILE)
 	select SERIAL_CORE
 
 config SERIAL_SH_SCI_NR_UARTS
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index ebd8629c108..d0a56235c50 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -54,10 +54,6 @@
 #include <asm/sh_bios.h>
 #endif
 
-#ifdef CONFIG_H8300
-#include <asm/gpio.h>
-#endif
-
 #include "sh-sci.h"
 
 struct sci_port {
@@ -66,12 +62,6 @@ struct sci_port {
 	/* Platform configuration */
 	struct plat_sci_port	*cfg;
 
-	/* Port enable callback */
-	void			(*enable)(struct uart_port *port);
-
-	/* Port disable callback */
-	void			(*disable)(struct uart_port *port);
-
 	/* Break timer */
 	struct timer_list	break_timer;
 	int			break_flag;
@@ -81,6 +71,8 @@ struct sci_port {
 	/* Function clock */
 	struct clk		*fclk;
 
+	char			*irqstr[SCIx_NR_IRQS];
+
 	struct dma_chan			*chan_tx;
 	struct dma_chan			*chan_rx;
 
@@ -121,6 +113,278 @@ to_sci_port(struct uart_port *uart)
 	return container_of(uart, struct sci_port, port);
 }
 
+struct plat_sci_reg {
+	u8 offset, size;
+};
+
+/* Helper for invalidating specific entries of an inherited map. */
+#define sci_reg_invalid	{ .offset = 0, .size = 0 }
+
+static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
+	[SCIx_PROBE_REGTYPE] = {
+		[0 ... SCIx_NR_REGS - 1] = sci_reg_invalid,
+	},
+
+	/*
+	 * Common SCI definitions, dependent on the port's regshift
+	 * value.
+	 */
+	[SCIx_SCI_REGTYPE] = {
+		[SCSMR]		= { 0x00,  8 },
+		[SCBRR]		= { 0x01,  8 },
+		[SCSCR]		= { 0x02,  8 },
+		[SCxTDR]	= { 0x03,  8 },
+		[SCxSR]		= { 0x04,  8 },
+		[SCxRDR]	= { 0x05,  8 },
+		[SCFCR]		= sci_reg_invalid,
+		[SCFDR]		= sci_reg_invalid,
+		[SCTFDR]	= sci_reg_invalid,
+		[SCRFDR]	= sci_reg_invalid,
+		[SCSPTR]	= sci_reg_invalid,
+		[SCLSR]		= sci_reg_invalid,
+	},
+
+	/*
+	 * Common definitions for legacy IrDA ports, dependent on
+	 * regshift value.
+	 */
+	[SCIx_IRDA_REGTYPE] = {
+		[SCSMR]		= { 0x00,  8 },
+		[SCBRR]		= { 0x01,  8 },
+		[SCSCR]		= { 0x02,  8 },
+		[SCxTDR]	= { 0x03,  8 },
+		[SCxSR]		= { 0x04,  8 },
+		[SCxRDR]	= { 0x05,  8 },
+		[SCFCR]		= { 0x06,  8 },
+		[SCFDR]		= { 0x07, 16 },
+		[SCTFDR]	= sci_reg_invalid,
+		[SCRFDR]	= sci_reg_invalid,
+		[SCSPTR]	= sci_reg_invalid,
+		[SCLSR]		= sci_reg_invalid,
+	},
+
+	/*
+	 * Common SCIFA definitions.
+	 */
+	[SCIx_SCIFA_REGTYPE] = {
+		[SCSMR]		= { 0x00, 16 },
+		[SCBRR]		= { 0x04,  8 },
+		[SCSCR]		= { 0x08, 16 },
+		[SCxTDR]	= { 0x20,  8 },
+		[SCxSR]		= { 0x14, 16 },
+		[SCxRDR]	= { 0x24,  8 },
+		[SCFCR]		= { 0x18, 16 },
+		[SCFDR]		= { 0x1c, 16 },
+		[SCTFDR]	= sci_reg_invalid,
+		[SCRFDR]	= sci_reg_invalid,
+		[SCSPTR]	= sci_reg_invalid,
+		[SCLSR]		= sci_reg_invalid,
+	},
+
+	/*
+	 * Common SCIFB definitions.
+	 */
+	[SCIx_SCIFB_REGTYPE] = {
+		[SCSMR]		= { 0x00, 16 },
+		[SCBRR]		= { 0x04,  8 },
+		[SCSCR]		= { 0x08, 16 },
+		[SCxTDR]	= { 0x40,  8 },
+		[SCxSR]		= { 0x14, 16 },
+		[SCxRDR]	= { 0x60,  8 },
+		[SCFCR]		= { 0x18, 16 },
+		[SCFDR]		= { 0x1c, 16 },
+		[SCTFDR]	= sci_reg_invalid,
+		[SCRFDR]	= sci_reg_invalid,
+		[SCSPTR]	= sci_reg_invalid,
+		[SCLSR]		= sci_reg_invalid,
+	},
+
+	/*
+	 * Common SH-3 SCIF definitions.
+	 */
+	[SCIx_SH3_SCIF_REGTYPE] = {
+		[SCSMR]		= { 0x00,  8 },
+		[SCBRR]		= { 0x02,  8 },
+		[SCSCR]		= { 0x04,  8 },
+		[SCxTDR]	= { 0x06,  8 },
+		[SCxSR]		= { 0x08, 16 },
+		[SCxRDR]	= { 0x0a,  8 },
+		[SCFCR]		= { 0x0c,  8 },
+		[SCFDR]		= { 0x0e, 16 },
+		[SCTFDR]	= sci_reg_invalid,
+		[SCRFDR]	= sci_reg_invalid,
+		[SCSPTR]	= sci_reg_invalid,
+		[SCLSR]		= sci_reg_invalid,
+	},
+
+	/*
+	 * Common SH-4(A) SCIF(B) definitions.
+	 */
+	[SCIx_SH4_SCIF_REGTYPE] = {
+		[SCSMR]		= { 0x00, 16 },
+		[SCBRR]		= { 0x04,  8 },
+		[SCSCR]		= { 0x08, 16 },
+		[SCxTDR]	= { 0x0c,  8 },
+		[SCxSR]		= { 0x10, 16 },
+		[SCxRDR]	= { 0x14,  8 },
+		[SCFCR]		= { 0x18, 16 },
+		[SCFDR]		= { 0x1c, 16 },
+		[SCTFDR]	= sci_reg_invalid,
+		[SCRFDR]	= sci_reg_invalid,
+		[SCSPTR]	= { 0x20, 16 },
+		[SCLSR]		= { 0x24, 16 },
+	},
+
+	/*
+	 * Common SH-4(A) SCIF(B) definitions for ports without an SCSPTR
+	 * register.
+	 */
+	[SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE] = {
+		[SCSMR]		= { 0x00, 16 },
+		[SCBRR]		= { 0x04,  8 },
+		[SCSCR]		= { 0x08, 16 },
+		[SCxTDR]	= { 0x0c,  8 },
+		[SCxSR]		= { 0x10, 16 },
+		[SCxRDR]	= { 0x14,  8 },
+		[SCFCR]		= { 0x18, 16 },
+		[SCFDR]		= { 0x1c, 16 },
+		[SCTFDR]	= sci_reg_invalid,
+		[SCRFDR]	= sci_reg_invalid,
+		[SCSPTR]	= sci_reg_invalid,
+		[SCLSR]		= { 0x24, 16 },
+	},
+
+	/*
+	 * Common SH-4(A) SCIF(B) definitions for ports with FIFO data
+	 * count registers.
+	 */
+	[SCIx_SH4_SCIF_FIFODATA_REGTYPE] = {
+		[SCSMR]		= { 0x00, 16 },
+		[SCBRR]		= { 0x04,  8 },
+		[SCSCR]		= { 0x08, 16 },
+		[SCxTDR]	= { 0x0c,  8 },
+		[SCxSR]		= { 0x10, 16 },
+		[SCxRDR]	= { 0x14,  8 },
+		[SCFCR]		= { 0x18, 16 },
+		[SCFDR]		= { 0x1c, 16 },
+		[SCTFDR]	= { 0x1c, 16 },	/* aliased to SCFDR */
+		[SCRFDR]	= { 0x20, 16 },
+		[SCSPTR]	= { 0x24, 16 },
+		[SCLSR]		= { 0x28, 16 },
+	},
+
+	/*
+	 * SH7705-style SCIF(B) ports, lacking both SCSPTR and SCLSR
+	 * registers.
+	 */
+	[SCIx_SH7705_SCIF_REGTYPE] = {
+		[SCSMR]		= { 0x00, 16 },
+		[SCBRR]		= { 0x04,  8 },
+		[SCSCR]		= { 0x08, 16 },
+		[SCxTDR]	= { 0x20,  8 },
+		[SCxSR]		= { 0x14, 16 },
+		[SCxRDR]	= { 0x24,  8 },
+		[SCFCR]		= { 0x18, 16 },
+		[SCFDR]		= { 0x1c, 16 },
+		[SCTFDR]	= sci_reg_invalid,
+		[SCRFDR]	= sci_reg_invalid,
+		[SCSPTR]	= sci_reg_invalid,
+		[SCLSR]		= sci_reg_invalid,
+	},
+};
+
+#define sci_getreg(up, offset)		(sci_regmap[to_sci_port(up)->cfg->regtype] + offset)
+
+/*
+ * The "offset" here is rather misleading, in that it refers to an enum
+ * value relative to the port mapping rather than the fixed offset
+ * itself, which needs to be manually retrieved from the platform's
+ * register map for the given port.
+ */
+static unsigned int sci_serial_in(struct uart_port *p, int offset)
+{
+	struct plat_sci_reg *reg = sci_getreg(p, offset);
+
+	if (reg->size == 8)
+		return ioread8(p->membase + (reg->offset << p->regshift));
+	else if (reg->size == 16)
+		return ioread16(p->membase + (reg->offset << p->regshift));
+	else
+		WARN(1, "Invalid register access\n");
+
+	return 0;
+}
+
+static void sci_serial_out(struct uart_port *p, int offset, int value)
+{
+	struct plat_sci_reg *reg = sci_getreg(p, offset);
+
+	if (reg->size == 8)
+		iowrite8(value, p->membase + (reg->offset << p->regshift));
+	else if (reg->size == 16)
+		iowrite16(value, p->membase + (reg->offset << p->regshift));
+	else
+		WARN(1, "Invalid register access\n");
+}
+
+#define sci_in(up, offset)		(up->serial_in(up, offset))
+#define sci_out(up, offset, value)	(up->serial_out(up, offset, value))
+
+static int sci_probe_regmap(struct plat_sci_port *cfg)
+{
+	switch (cfg->type) {
+	case PORT_SCI:
+		cfg->regtype = SCIx_SCI_REGTYPE;
+		break;
+	case PORT_IRDA:
+		cfg->regtype = SCIx_IRDA_REGTYPE;
+		break;
+	case PORT_SCIFA:
+		cfg->regtype = SCIx_SCIFA_REGTYPE;
+		break;
+	case PORT_SCIFB:
+		cfg->regtype = SCIx_SCIFB_REGTYPE;
+		break;
+	case PORT_SCIF:
+		/*
+		 * The SH-4 is a bit of a misnomer here, although that's
+		 * where this particular port layout originated. This
+		 * configuration (or some slight variation thereof)
+		 * remains the dominant model for all SCIFs.
+		 */
+		cfg->regtype = SCIx_SH4_SCIF_REGTYPE;
+		break;
+	default:
+		printk(KERN_ERR "Can't probe register map for given port\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void sci_port_enable(struct sci_port *sci_port)
+{
+	if (!sci_port->port.dev)
+		return;
+
+	pm_runtime_get_sync(sci_port->port.dev);
+
+	clk_enable(sci_port->iclk);
+	sci_port->port.uartclk = clk_get_rate(sci_port->iclk);
+	clk_enable(sci_port->fclk);
+}
+
+static void sci_port_disable(struct sci_port *sci_port)
+{
+	if (!sci_port->port.dev)
+		return;
+
+	clk_disable(sci_port->fclk);
+	clk_disable(sci_port->iclk);
+
+	pm_runtime_put_sync(sci_port->port.dev);
+}
+
 #if defined(CONFIG_CONSOLE_POLL) || defined(CONFIG_SERIAL_SH_SCI_CONSOLE)
 
 #ifdef CONFIG_CONSOLE_POLL
@@ -164,223 +428,76 @@ static void sci_poll_put_char(struct uart_port *port, unsigned char c)
 }
 #endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_SH_SCI_CONSOLE */
 
-#if defined(__H8300H__) || defined(__H8300S__)
 static void sci_init_pins(struct uart_port *port, unsigned int cflag)
 {
-	int ch = (port->mapbase - SMR0) >> 3;
-
-	/* set DDR regs */
-	H8300_GPIO_DDR(h8300_sci_pins[ch].port,
-		       h8300_sci_pins[ch].rx,
-		       H8300_GPIO_INPUT);
-	H8300_GPIO_DDR(h8300_sci_pins[ch].port,
-		       h8300_sci_pins[ch].tx,
-		       H8300_GPIO_OUTPUT);
-
-	/* tx mark output*/
-	H8300_SCI_DR(ch) |= h8300_sci_pins[ch].tx;
-}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
-static inline void 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);
-}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7720) || defined(CONFIG_CPU_SUBTYPE_SH7721)
-static inline void 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);
-		}
-	}
-}
-#elif defined(CONFIG_CPU_SH3)
-/* For SH7705, SH7706, SH7707, SH7709, SH7709A, SH7729 */
-static inline void 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);
+	struct sci_port *s = to_sci_port(port);
+	struct plat_sci_reg *reg = sci_regmap[s->cfg->regtype] + SCSPTR;
 
-		data = __raw_readb(SCPDR);
-		/* Set /RTS2 (bit6) = 0 */
-		__raw_writeb(data & 0xbf, SCPDR);
+	/*
+	 * Use port-specific handler if provided.
+	 */
+	if (s->cfg->ops && s->cfg->ops->init_pins) {
+		s->cfg->ops->init_pins(port, cflag);
+		return;
 	}
-}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
-static inline void 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;
+	/*
+	 * For the generic path SCSPTR is necessary. Bail out if that's
+	 * unavailable, too.
+	 */
+	if (!reg->size)
+		return;
 
-		__raw_writew(data, PSCR);
-	}
-}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7757) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7763) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7780) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7785) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7786) || \
-      defined(CONFIG_CPU_SUBTYPE_SHX3)
-static inline void sci_init_pins(struct uart_port *port, unsigned int cflag)
-{
-	if (!(cflag & CRTSCTS))
-		__raw_writew(0x0080, SCSPTR0); /* Set RTS = 1 */
-}
-#elif defined(CONFIG_CPU_SH4) && !defined(CONFIG_CPU_SH4A)
-static inline void sci_init_pins(struct uart_port *port, unsigned int cflag)
-{
 	if (!(cflag & CRTSCTS))
-		__raw_writew(0x0080, SCSPTR2); /* Set RTS = 1 */
+		sci_out(port, SCSPTR, 0x0080); /* Set RTS = 1 */
 }
-#else
-static inline void sci_init_pins(struct uart_port *port, unsigned int cflag)
-{
-	/* Nothing to do */
-}
-#endif
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7780) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7785) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7786)
-static int scif_txfill(struct uart_port *port)
+static int sci_txfill(struct uart_port *port)
 {
-	return sci_in(port, SCTFDR) & 0xff;
-}
+	struct plat_sci_reg *reg;
 
-static int scif_txroom(struct uart_port *port)
-{
-	return SCIF_TXROOM_MAX - scif_txfill(port);
-}
-
-static int scif_rxfill(struct uart_port *port)
-{
-	return sci_in(port, SCRFDR) & 0xff;
-}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
-static int scif_txfill(struct uart_port *port)
-{
-	if (port->mapbase == 0xffe00000 ||
-	    port->mapbase == 0xffe08000)
-		/* SCIF0/1*/
+	reg = sci_getreg(port, SCTFDR);
+	if (reg->size)
 		return sci_in(port, SCTFDR) & 0xff;
-	else
-		/* SCIF2 */
+
+	reg = sci_getreg(port, SCFDR);
+	if (reg->size)
 		return sci_in(port, SCFDR) >> 8;
-}
 
-static int scif_txroom(struct uart_port *port)
-{
-	if (port->mapbase == 0xffe00000 ||
-	    port->mapbase == 0xffe08000)
-		/* SCIF0/1*/
-		return SCIF_TXROOM_MAX - scif_txfill(port);
-	else
-		/* SCIF2 */
-		return SCIF2_TXROOM_MAX - scif_txfill(port);
+	return !(sci_in(port, SCxSR) & SCI_TDRE);
 }
 
-static int scif_rxfill(struct uart_port *port)
-{
-	if ((port->mapbase == 0xffe00000) ||
-	    (port->mapbase == 0xffe08000)) {
-		/* SCIF0/1*/
-		return sci_in(port, SCRFDR) & 0xff;
-	} else {
-		/* SCIF2 */
-		return sci_in(port, SCFDR) & SCIF2_RFDC_MASK;
-	}
-}
-#elif defined(CONFIG_ARCH_SH7372)
-static int scif_txfill(struct uart_port *port)
+static int sci_txroom(struct uart_port *port)
 {
-	if (port->type == PORT_SCIFA)
-		return sci_in(port, SCFDR) >> 8;
-	else
-		return sci_in(port, SCTFDR);
+	return port->fifosize - sci_txfill(port);
 }
 
-static int scif_txroom(struct uart_port *port)
+static int sci_rxfill(struct uart_port *port)
 {
-	return port->fifosize - scif_txfill(port);
-}
+	struct plat_sci_reg *reg;
 
-static int scif_rxfill(struct uart_port *port)
-{
-	if (port->type == PORT_SCIFA)
-		return sci_in(port, SCFDR) & SCIF_RFDC_MASK;
-	else
-		return sci_in(port, SCRFDR);
-}
-#else
-static int scif_txfill(struct uart_port *port)
-{
-	return sci_in(port, SCFDR) >> 8;
-}
+	reg = sci_getreg(port, SCRFDR);
+	if (reg->size)
+		return sci_in(port, SCRFDR) & 0xff;
 
-static int scif_txroom(struct uart_port *port)
-{
-	return SCIF_TXROOM_MAX - scif_txfill(port);
-}
+	reg = sci_getreg(port, SCFDR);
+	if (reg->size)
+		return sci_in(port, SCFDR) & ((port->fifosize << 1) - 1);
 
-static int scif_rxfill(struct uart_port *port)
-{
-	return sci_in(port, SCFDR) & SCIF_RFDC_MASK;
+	return (sci_in(port, SCxSR) & SCxSR_RDxF(port)) != 0;
 }
-#endif
 
-static int sci_txfill(struct uart_port *port)
+/*
+ * SCI helper for checking the state of the muxed port/RXD pins.
+ */
+static inline int sci_rxd_in(struct uart_port *port)
 {
-	return !(sci_in(port, SCxSR) & SCI_TDRE);
-}
+	struct sci_port *s = to_sci_port(port);
 
-static int sci_txroom(struct uart_port *port)
-{
-	return !sci_txfill(port);
-}
+	if (s->cfg->port_reg <= 0)
+		return 1;
 
-static int sci_rxfill(struct uart_port *port)
-{
-	return (sci_in(port, SCxSR) & SCxSR_RDxF(port)) != 0;
+	return !!__raw_readb(s->cfg->port_reg);
 }
 
 /* ********************************************************************** *
@@ -406,10 +523,7 @@ static void sci_transmit_chars(struct uart_port *port)
 		return;
 	}
 
-	if (port->type == PORT_SCI)
-		count = sci_txroom(port);
-	else
-		count = scif_txroom(port);
+	count = sci_txroom(port);
 
 	do {
 		unsigned char c;
@@ -464,13 +578,8 @@ static void sci_receive_chars(struct uart_port *port)
 		return;
 
 	while (1) {
-		if (port->type == PORT_SCI)
-			count = sci_rxfill(port);
-		else
-			count = scif_rxfill(port);
-
 		/* Don't copy more bytes than there is room for in the buffer */
-		count = tty_buffer_request_room(tty, count);
+		count = tty_buffer_request_room(tty, sci_rxfill(port));
 
 		/* If for any reason we can't copy more data, we're done! */
 		if (count == 0)
@@ -561,8 +670,7 @@ static void sci_break_timer(unsigned long data)
 {
 	struct sci_port *port = (struct sci_port *)data;
 
-	if (port->enable)
-		port->enable(&port->port);
+	sci_port_enable(port);
 
 	if (sci_rxd_in(&port->port) == 0) {
 		port->break_flag = 1;
@@ -574,8 +682,7 @@ static void sci_break_timer(unsigned long data)
 	} else
 		port->break_flag = 0;
 
-	if (port->disable)
-		port->disable(&port->port);
+	sci_port_disable(port);
 }
 
 static int sci_handle_errors(struct uart_port *port)
@@ -583,13 +690,19 @@ static int sci_handle_errors(struct uart_port *port)
 	int copied = 0;
 	unsigned short status = sci_in(port, SCxSR);
 	struct tty_struct *tty = port->state->port.tty;
+	struct sci_port *s = to_sci_port(port);
 
-	if (status & SCxSR_ORER(port)) {
-		/* overrun error */
-		if (tty_insert_flip_char(tty, 0, TTY_OVERRUN))
-			copied++;
+	/*
+	 * Handle overruns, if supported.
+	 */
+	if (s->cfg->overrun_bit != SCIx_NOT_SUPPORTED) {
+		if (status & (1 << s->cfg->overrun_bit)) {
+			/* overrun error */
+			if (tty_insert_flip_char(tty, 0, TTY_OVERRUN))
+				copied++;
 
-		dev_notice(port->dev, "overrun error");
+			dev_notice(port->dev, "overrun error");
+		}
 	}
 
 	if (status & SCxSR_FER(port)) {
@@ -637,12 +750,15 @@ static int sci_handle_errors(struct uart_port *port)
 static int sci_handle_fifo_overrun(struct uart_port *port)
 {
 	struct tty_struct *tty = port->state->port.tty;
+	struct sci_port *s = to_sci_port(port);
+	struct plat_sci_reg *reg;
 	int copied = 0;
 
-	if (port->type != PORT_SCIF)
+	reg = sci_getreg(port, SCLSR);
+	if (!reg->size)
 		return 0;
 
-	if ((sci_in(port, SCLSR) & SCIF_ORER) != 0) {
+	if ((sci_in(port, SCLSR) & (1 << s->cfg->overrun_bit))) {
 		sci_out(port, SCLSR, 0);
 
 		tty_insert_flip_char(tty, 0, TTY_OVERRUN);
@@ -840,74 +956,102 @@ static int sci_notifier(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static void sci_clk_enable(struct uart_port *port)
-{
-	struct sci_port *sci_port = to_sci_port(port);
-
-	pm_runtime_get_sync(port->dev);
+static struct sci_irq_desc {
+	const char	*desc;
+	irq_handler_t	handler;
+} sci_irq_desc[] = {
+	/*
+	 * Split out handlers, the default case.
+	 */
+	[SCIx_ERI_IRQ] = {
+		.desc = "rx err",
+		.handler = sci_er_interrupt,
+	},
 
-	clk_enable(sci_port->iclk);
-	sci_port->port.uartclk = clk_get_rate(sci_port->iclk);
-	clk_enable(sci_port->fclk);
-}
+	[SCIx_RXI_IRQ] = {
+		.desc = "rx full",
+		.handler = sci_rx_interrupt,
+	},
 
-static void sci_clk_disable(struct uart_port *port)
-{
-	struct sci_port *sci_port = to_sci_port(port);
+	[SCIx_TXI_IRQ] = {
+		.desc = "tx empty",
+		.handler = sci_tx_interrupt,
+	},
 
-	clk_disable(sci_port->fclk);
-	clk_disable(sci_port->iclk);
+	[SCIx_BRI_IRQ] = {
+		.desc = "break",
+		.handler = sci_br_interrupt,
+	},
 
-	pm_runtime_put_sync(port->dev);
-}
+	/*
+	 * Special muxed handler.
+	 */
+	[SCIx_MUX_IRQ] = {
+		.desc = "mux",
+		.handler = sci_mpxed_interrupt,
+	},
+};
 
 static int sci_request_irq(struct sci_port *port)
 {
-	int i;
-	irqreturn_t (*handlers[4])(int irq, void *ptr) = {
-		sci_er_interrupt, sci_rx_interrupt, sci_tx_interrupt,
-		sci_br_interrupt,
-	};
-	const char *desc[] = { "SCI Receive Error", "SCI Receive Data Full",
-			       "SCI Transmit Data Empty", "SCI Break" };
-
-	if (port->cfg->irqs[0] == port->cfg->irqs[1]) {
-		if (unlikely(!port->cfg->irqs[0]))
-			return -ENODEV;
-
-		if (request_irq(port->cfg->irqs[0], sci_mpxed_interrupt,
-				IRQF_DISABLED, "sci", port)) {
-			dev_err(port->port.dev, "Can't allocate IRQ\n");
-			return -ENODEV;
+	struct uart_port *up = &port->port;
+	int i, j, ret = 0;
+
+	for (i = j = 0; i < SCIx_NR_IRQS; i++, j++) {
+		struct sci_irq_desc *desc;
+		unsigned int irq;
+
+		if (SCIx_IRQ_IS_MUXED(port)) {
+			i = SCIx_MUX_IRQ;
+			irq = up->irq;
+		} else
+			irq = port->cfg->irqs[i];
+
+		desc = sci_irq_desc + i;
+		port->irqstr[j] = kasprintf(GFP_KERNEL, "%s:%s",
+					    dev_name(up->dev), desc->desc);
+		if (!port->irqstr[j]) {
+			dev_err(up->dev, "Failed to allocate %s IRQ string\n",
+				desc->desc);
+			goto out_nomem;
 		}
-	} else {
-		for (i = 0; i < ARRAY_SIZE(handlers); i++) {
-			if (unlikely(!port->cfg->irqs[i]))
-				continue;
-
-			if (request_irq(port->cfg->irqs[i], handlers[i],
-					IRQF_DISABLED, desc[i], port)) {
-				dev_err(port->port.dev, "Can't allocate IRQ\n");
-				return -ENODEV;
-			}
+
+		ret = request_irq(irq, desc->handler, up->irqflags,
+				  port->irqstr[j], port);
+		if (unlikely(ret)) {
+			dev_err(up->dev, "Can't allocate %s IRQ\n", desc->desc);
+			goto out_noirq;
 		}
 	}
 
 	return 0;
+
+out_noirq:
+	while (--i >= 0)
+		free_irq(port->cfg->irqs[i], port);
+
+out_nomem:
+	while (--j >= 0)
+		kfree(port->irqstr[j]);
+
+	return ret;
 }
 
 static void sci_free_irq(struct sci_port *port)
 {
 	int i;
 
-	if (port->cfg->irqs[0] == port->cfg->irqs[1])
-		free_irq(port->cfg->irqs[0], port);
-	else {
-		for (i = 0; i < ARRAY_SIZE(port->cfg->irqs); i++) {
-			if (!port->cfg->irqs[i])
-				continue;
+	/*
+	 * Intentionally in reverse order so we iterate over the muxed
+	 * IRQ first.
+	 */
+	for (i = 0; i < SCIx_NR_IRQS; i++) {
+		free_irq(port->cfg->irqs[i], port);
+		kfree(port->irqstr[i]);
 
-			free_irq(port->cfg->irqs[i], port);
+		if (SCIx_IRQ_IS_MUXED(port)) {
+			/* If there's only one IRQ, we're done. */
+			return;
 		}
 	}
 }
@@ -915,7 +1059,7 @@ static void sci_free_irq(struct sci_port *port)
 static unsigned int sci_tx_empty(struct uart_port *port)
 {
 	unsigned short status = sci_in(port, SCxSR);
-	unsigned short in_tx_fifo = scif_txfill(port);
+	unsigned short in_tx_fifo = sci_txfill(port);
 
 	return (status & SCxSR_TEND(port)) && !in_tx_fifo ? TIOCSER_TEMT : 0;
 }
@@ -1438,8 +1582,7 @@ static int sci_startup(struct uart_port *port)
 
 	dev_dbg(port->dev, "%s(%d)\n", __func__, port->line);
 
-	if (s->enable)
-		s->enable(port);
+	sci_port_enable(s);
 
 	ret = sci_request_irq(s);
 	if (unlikely(ret < 0))
@@ -1465,8 +1608,7 @@ static void sci_shutdown(struct uart_port *port)
 	sci_free_dma(port);
 	sci_free_irq(s);
 
-	if (s->disable)
-		s->disable(port);
+	sci_port_disable(s);
 }
 
 static unsigned int sci_scbrr_calc(unsigned int algo_id, unsigned int bps,
@@ -1513,8 +1655,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 	if (likely(baud && port->uartclk))
 		t = sci_scbrr_calc(s->cfg->scbrr_algo_id, baud, port->uartclk);
 
-	if (s->enable)
-		s->enable(port);
+	sci_port_enable(s);
 
 	do {
 		status = sci_in(port, SCxSR);
@@ -1584,8 +1725,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 	if ((termios->c_cflag & CREAD) != 0)
 		sci_start_rx(port);
 
-	if (s->disable)
-		s->disable(port);
+	sci_port_disable(s);
 }
 
 static const char *sci_type(struct uart_port *port)
@@ -1726,6 +1866,7 @@ static int __devinit sci_init_single(struct platform_device *dev,
 				     struct plat_sci_port *p)
 {
 	struct uart_port *port = &sci_port->port;
+	int ret;
 
 	port->ops	= &sci_uart_ops;
 	port->iotype	= UPIO_MEM;
@@ -1746,6 +1887,12 @@ static int __devinit sci_init_single(struct platform_device *dev,
 		break;
 	}
 
+	if (p->regtype == SCIx_PROBE_REGTYPE) {
+		ret = sci_probe_regmap(p);
+		if (unlikely(!ret))
+			return ret;
+	}
+
 	if (dev) {
 		sci_port->iclk = clk_get(&dev->dev, "sci_ick");
 		if (IS_ERR(sci_port->iclk)) {
@@ -1764,8 +1911,6 @@ static int __devinit sci_init_single(struct platform_device *dev,
 		if (IS_ERR(sci_port->fclk))
 			sci_port->fclk = NULL;
 
-		sci_port->enable = sci_clk_enable;
-		sci_port->disable = sci_clk_disable;
 		port->dev = &dev->dev;
 
 		pm_runtime_enable(&dev->dev);
@@ -1775,20 +1920,51 @@ static int __devinit sci_init_single(struct platform_device *dev,
 	sci_port->break_timer.function = sci_break_timer;
 	init_timer(&sci_port->break_timer);
 
+	/*
+	 * Establish some sensible defaults for the error detection.
+	 */
+	if (!p->error_mask)
+		p->error_mask = (p->type == PORT_SCI) ?
+			SCI_DEFAULT_ERROR_MASK : SCIF_DEFAULT_ERROR_MASK;
+
+	/*
+	 * Establish sensible defaults for the overrun detection, unless
+	 * the part has explicitly disabled support for it.
+	 */
+	if (p->overrun_bit != SCIx_NOT_SUPPORTED) {
+		if (p->type == PORT_SCI)
+			p->overrun_bit = 5;
+		else if (p->scbrr_algo_id == SCBRR_ALGO_4)
+			p->overrun_bit = 9;
+		else
+			p->overrun_bit = 0;
+
+		/*
+		 * Make the error mask inclusive of overrun detection, if
+		 * supported.
+		 */
+		p->error_mask |= (1 << p->overrun_bit);
+	}
+
 	sci_port->cfg		= p;
 
 	port->mapbase		= p->mapbase;
 	port->type		= p->type;
 	port->flags		= p->flags;
+	port->regshift		= p->regshift;
 
 	/*
-	 * The UART port needs an IRQ value, so we peg this to the TX IRQ
+	 * The UART port needs an IRQ value, so we peg this to the RX IRQ
 	 * for the multi-IRQ ports, which is where we are primarily
 	 * concerned with the shutdown path synchronization.
 	 *
 	 * For the muxed case there's nothing more to do.
 	 */
 	port->irq		= p->irqs[SCIx_RXI_IRQ];
+	port->irqflags		= IRQF_DISABLED;
+
+	port->serial_in		= sci_serial_in;
+	port->serial_out	= sci_serial_out;
 
 	if (p->dma_dev)
 		dev_dbg(port->dev, "DMA device %p, tx %d, rx %d\n",
@@ -1814,8 +1990,7 @@ static void serial_console_write(struct console *co, const char *s,
 	struct uart_port *port = &sci_port->port;
 	unsigned short bits;
 
-	if (sci_port->enable)
-		sci_port->enable(port);
+	sci_port_enable(sci_port);
 
 	uart_console_write(port, s, count, serial_console_putchar);
 
@@ -1824,8 +1999,7 @@ static void serial_console_write(struct console *co, const char *s,
 	while ((sci_in(port, SCxSR) & bits) != bits)
 		cpu_relax();
 
-	if (sci_port->disable)
-		sci_port->disable(port);
+	sci_port_disable(sci_port);
 }
 
 static int __devinit serial_console_setup(struct console *co, char *options)
@@ -1857,20 +2031,13 @@ static int __devinit serial_console_setup(struct console *co, char *options)
 	if (unlikely(ret != 0))
 		return ret;
 
-	if (sci_port->enable)
-		sci_port->enable(port);
+	sci_port_enable(sci_port);
 
 	if (options)
 		uart_parse_options(options, &baud, &parity, &bits, &flow);
 
-	ret = uart_set_options(port, co, baud, parity, bits, flow);
-#if defined(__H8300H__) || defined(__H8300S__)
-	/* disable rx interrupt */
-	if (ret == 0)
-		sci_stop_rx(port);
-#endif
 	/* TODO: disable clock */
-	return ret;
+	return uart_set_options(port, co, baud, parity, bits, flow);
 }
 
 static struct console serial_console = {
@@ -2081,3 +2248,5 @@ module_exit(sci_exit);
 
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:sh-sci");
+MODULE_AUTHOR("Paul Mundt");
+MODULE_DESCRIPTION("SuperH SCI(F) serial driver");
diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h
index b04d937c911..e9bed038aa1 100644
--- a/drivers/tty/serial/sh-sci.h
+++ b/drivers/tty/serial/sh-sci.h
@@ -2,169 +2,14 @@
 #include <linux/io.h>
 #include <linux/gpio.h>
 
-#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
-#include <asm/regs306x.h>
-#endif
-#if defined(CONFIG_H8S2678)
-#include <asm/regs267x.h>
-#endif
-
-#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7707) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7708) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7709)
-# define SCPCR  0xA4000116 /* 16 bit SCI and SCIF */
-# define SCPDR  0xA4000136 /* 8  bit SCI and SCIF */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7705)
-# define SCIF0		0xA4400000
-# define SCIF2		0xA4410000
-# define SCPCR 0xA4000116
-# define SCPDR 0xA4000136
-#elif defined(CONFIG_CPU_SUBTYPE_SH7720) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7721) || \
-      defined(CONFIG_ARCH_SH73A0) || \
-      defined(CONFIG_ARCH_SH7367) || \
-      defined(CONFIG_ARCH_SH7377) || \
-      defined(CONFIG_ARCH_SH7372)
-# define PORT_PTCR	   0xA405011EUL
-# define PORT_PVCR	   0xA4050122UL
-# define SCIF_ORER	   0x0200   /* overrun error bit */
-#elif defined(CONFIG_SH_RTS7751R2D)
-# define SCSPTR1 0xFFE0001C /* 8 bit SCIF */
-# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
-# define SCIF_ORER 0x0001   /* overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7750)  || \
-      defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7091)  || \
-      defined(CONFIG_CPU_SUBTYPE_SH7751)  || \
-      defined(CONFIG_CPU_SUBTYPE_SH7751R)
-# define SCSPTR1 0xffe0001c /* 8  bit SCI */
-# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
-# define SCIF_ORER 0x0001   /* overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
-# define SCSPTR0 0xfe600024 /* 16 bit SCIF */
-# define SCSPTR1 0xfe610024 /* 16 bit SCIF */
-# define SCSPTR2 0xfe620024 /* 16 bit SCIF */
-# define SCIF_ORER 0x0001  /* overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
-# define SCSPTR0 0xA4400000	  /* 16 bit SCIF */
-# define SCIF_ORER 0x0001   /* overrun error bit */
-# define PACR 0xa4050100
-# define PBCR 0xa4050102
-#elif defined(CONFIG_CPU_SUBTYPE_SH7343)
-# define SCSPTR0 0xffe00010	/* 16 bit SCIF */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
-# define PADR			0xA4050120
-# define PSDR			0xA405013e
-# define PWDR			0xA4050166
-# define PSCR			0xA405011E
-# define SCIF_ORER		0x0001	/* overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7366)
-# define SCPDR0			0xA405013E      /* 16 bit SCIF0 PSDR */
-# define SCSPTR0		SCPDR0
-# define SCIF_ORER		0x0001  /* overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
-# define SCSPTR0                0xa4050160
-# define SCIF_ORER              0x0001  /* overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7724)
-# define SCIF_ORER              0x0001  /* overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
-# define SCSPTR2 0xffe80020 /* 16 bit SCIF */
-# define SCIF_ORER 0x0001   /* overrun error bit */
-#elif defined(CONFIG_H83007) || defined(CONFIG_H83068)
-# define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
-#elif defined(CONFIG_H8S2678)
-# define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
-# define SCSPTR0 0xfe4b0020
-# define SCIF_ORER 0x0001
-#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
-# define SCSPTR0 0xffe00024 /* 16 bit SCIF */
-# define SCIF_ORER 0x0001  /* overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7770)
-# define SCSPTR0 0xff923020 /* 16 bit SCIF */
-# define SCIF_ORER 0x0001  /* overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
-# define SCSPTR0	0xffe00024	/* 16 bit SCIF */
-# define SCIF_ORER	0x0001		/* Overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7785) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7786)
-# define SCSPTR0	0xffea0024	/* 16 bit SCIF */
-# define SCIF_ORER	0x0001		/* Overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7201) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7203) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7206) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7263)
-# define SCSPTR0 0xfffe8020 /* 16 bit SCIF */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7619)
-# define SCSPTR0 0xf8400020 /* 16 bit SCIF */
-# define SCIF_ORER 0x0001  /* overrun error bit */
-#elif defined(CONFIG_CPU_SUBTYPE_SHX3)
-# define SCSPTR0 0xffc30020		/* 16 bit SCIF */
-# define SCIF_ORER 0x0001		/* Overrun error bit */
-#else
-# error CPU subtype not defined
-#endif
-
-/* SCxSR SCI */
-#define SCI_TDRE  0x80 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-#define SCI_RDRF  0x40 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-#define SCI_ORER  0x20 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-#define SCI_FER   0x10 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-#define SCI_PER   0x08 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-#define SCI_TEND  0x04 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-/*      SCI_MPB   0x02  * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-/*      SCI_MPBT  0x01  * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
-
-#define SCI_ERRORS ( SCI_PER | SCI_FER | SCI_ORER)
-
-/* SCxSR SCIF */
-#define SCIF_ER    0x0080 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_TEND  0x0040 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_TDFE  0x0020 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_BRK   0x0010 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_FER   0x0008 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_PER   0x0004 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_RDF   0x0002 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
-#define SCIF_DR    0x0001 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
-
-#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
-    defined(CONFIG_ARCH_SH73A0) || \
-    defined(CONFIG_ARCH_SH7367) || \
-    defined(CONFIG_ARCH_SH7377) || \
-    defined(CONFIG_ARCH_SH7372)
-# define SCIF_ORER    0x0200
-# define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER)
-# define SCIF_RFDC_MASK 0x007f
-# define SCIF_TXROOM_MAX 64
-#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
-# define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK )
-# define SCIF_RFDC_MASK 0x007f
-# define SCIF_TXROOM_MAX 64
-/* SH7763 SCIF2 support */
-# define SCIF2_RFDC_MASK 0x001f
-# define SCIF2_TXROOM_MAX 16
-#else
-# define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
-# define SCIF_RFDC_MASK 0x001f
-# define SCIF_TXROOM_MAX 16
-#endif
-
-#ifndef SCIF_ORER
-#define SCIF_ORER	0x0000
-#endif
-
 #define SCxSR_TEND(port)	(((port)->type == PORT_SCI) ? SCI_TEND   : SCIF_TEND)
-#define SCxSR_ERRORS(port)	(((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS)
 #define SCxSR_RDxF(port)	(((port)->type == PORT_SCI) ? SCI_RDRF   : SCIF_RDF)
 #define SCxSR_TDxE(port)	(((port)->type == PORT_SCI) ? SCI_TDRE   : SCIF_TDFE)
 #define SCxSR_FER(port)		(((port)->type == PORT_SCI) ? SCI_FER    : SCIF_FER)
 #define SCxSR_PER(port)		(((port)->type == PORT_SCI) ? SCI_PER    : SCIF_PER)
 #define SCxSR_BRK(port)		(((port)->type == PORT_SCI) ? 0x00       : SCIF_BRK)
-#define SCxSR_ORER(port)	(((port)->type == PORT_SCI) ? SCI_ORER	 : SCIF_ORER)
+
+#define SCxSR_ERRORS(port)	(to_sci_port(port)->cfg->error_mask)
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
     defined(CONFIG_CPU_SUBTYPE_SH7720) || \
@@ -191,278 +36,3 @@
 
 #define SCI_MAJOR		204
 #define SCI_MINOR_START		8
-
-#define SCI_IN(size, offset)					\
-  if ((size) == 8) {						\
-    return ioread8(port->membase + (offset));			\
-  } else {							\
-    return ioread16(port->membase + (offset));			\
-  }
-#define SCI_OUT(size, offset, value)				\
-  if ((size) == 8) {						\
-    iowrite8(value, port->membase + (offset));			\
-  } else if ((size) == 16) {					\
-    iowrite16(value, port->membase + (offset));			\
-  }
-
-#define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\
-  static inline unsigned int sci_##name##_in(struct uart_port *port)	\
-  {									\
-    if (port->type == PORT_SCIF || port->type == PORT_SCIFB) {		\
-      SCI_IN(scif_size, scif_offset)					\
-    } else {	/* PORT_SCI or PORT_SCIFA */				\
-      SCI_IN(sci_size, sci_offset);					\
-    }									\
-  }									\
-  static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
-  {									\
-    if (port->type == PORT_SCIF || port->type == PORT_SCIFB) {		\
-      SCI_OUT(scif_size, scif_offset, value)				\
-    } else {	/* PORT_SCI or PORT_SCIFA */				\
-      SCI_OUT(sci_size, sci_offset, value);				\
-    }									\
-  }
-
-#ifdef CONFIG_H8300
-/* h8300 don't have SCIF */
-#define CPU_SCIF_FNS(name)						\
-  static inline unsigned int sci_##name##_in(struct uart_port *port)	\
-  {									\
-    return 0;								\
-  }									\
-  static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
-  {									\
-  }
-#else
-#define CPU_SCIF_FNS(name, scif_offset, scif_size)			\
-  static inline unsigned int sci_##name##_in(struct uart_port *port)	\
-  {									\
-    SCI_IN(scif_size, scif_offset);					\
-  }									\
-  static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
-  {									\
-    SCI_OUT(scif_size, scif_offset, value);				\
-  }
-#endif
-
-#define CPU_SCI_FNS(name, sci_offset, sci_size)				\
-  static inline unsigned int sci_##name##_in(struct uart_port* port)	\
-  {									\
-    SCI_IN(sci_size, sci_offset);					\
-  }									\
-  static inline void sci_##name##_out(struct uart_port* port, unsigned int value) \
-  {									\
-    SCI_OUT(sci_size, sci_offset, value);				\
-  }
-
-#if defined(CONFIG_CPU_SH3) || \
-    defined(CONFIG_ARCH_SH73A0) || \
-    defined(CONFIG_ARCH_SH7367) || \
-    defined(CONFIG_ARCH_SH7377) || \
-    defined(CONFIG_ARCH_SH7372)
-#if defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
-#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
-		                sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
-		                 h8_sci_offset, h8_sci_size) \
-  CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size, sh4_scif_offset, sh4_scif_size)
-#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
-	  CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7720) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7721) || \
-      defined(CONFIG_ARCH_SH7367)
-#define SCIF_FNS(name, scif_offset, scif_size) \
-  CPU_SCIF_FNS(name, scif_offset, scif_size)
-#elif defined(CONFIG_ARCH_SH7377) || \
-      defined(CONFIG_ARCH_SH7372) || \
-      defined(CONFIG_ARCH_SH73A0)
-#define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scifb_offset, sh4_scifb_size) \
-  CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scifb_offset, sh4_scifb_size)
-#define SCIF_FNS(name, scif_offset, scif_size) \
-  CPU_SCIF_FNS(name, scif_offset, scif_size)
-#else
-#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
-		 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
-                 h8_sci_offset, h8_sci_size) \
-  CPU_SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh3_scif_offset, sh3_scif_size)
-#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
-  CPU_SCIF_FNS(name, sh3_scif_offset, sh3_scif_size)
-#endif
-#elif defined(__H8300H__) || defined(__H8300S__)
-#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
-		 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
-                 h8_sci_offset, h8_sci_size) \
-  CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size)
-#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
-  CPU_SCIF_FNS(name)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\
-      defined(CONFIG_CPU_SUBTYPE_SH7724)
-        #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size) \
-                CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size)
-        #define SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) \
-                CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
-#else
-#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
-		 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
-		 h8_sci_offset, h8_sci_size) \
-  CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size, sh4_scif_offset, sh4_scif_size)
-#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
-  CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
-#endif
-
-#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
-    defined(CONFIG_ARCH_SH7367)
-
-SCIF_FNS(SCSMR,  0x00, 16)
-SCIF_FNS(SCBRR,  0x04,  8)
-SCIF_FNS(SCSCR,  0x08, 16)
-SCIF_FNS(SCxSR,  0x14, 16)
-SCIF_FNS(SCFCR,  0x18, 16)
-SCIF_FNS(SCFDR,  0x1c, 16)
-SCIF_FNS(SCxTDR, 0x20,  8)
-SCIF_FNS(SCxRDR, 0x24,  8)
-SCIF_FNS(SCLSR,  0x00,  0)
-#elif defined(CONFIG_ARCH_SH7377) || \
-      defined(CONFIG_ARCH_SH7372) || \
-      defined(CONFIG_ARCH_SH73A0)
-SCIF_FNS(SCSMR,  0x00, 16)
-SCIF_FNS(SCBRR,  0x04,  8)
-SCIF_FNS(SCSCR,  0x08, 16)
-SCIF_FNS(SCTDSR, 0x0c, 16)
-SCIF_FNS(SCFER,  0x10, 16)
-SCIF_FNS(SCxSR,  0x14, 16)
-SCIF_FNS(SCFCR,  0x18, 16)
-SCIF_FNS(SCFDR,  0x1c, 16)
-SCIF_FNS(SCTFDR, 0x38, 16)
-SCIF_FNS(SCRFDR, 0x3c, 16)
-SCIx_FNS(SCxTDR, 0x20,  8, 0x40,  8)
-SCIx_FNS(SCxRDR, 0x24,  8, 0x60,  8)
-SCIF_FNS(SCLSR,  0x00,  0)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\
-      defined(CONFIG_CPU_SUBTYPE_SH7724)
-SCIx_FNS(SCSMR,  0x00, 16, 0x00, 16)
-SCIx_FNS(SCBRR,  0x04,  8, 0x04,  8)
-SCIx_FNS(SCSCR,  0x08, 16, 0x08, 16)
-SCIx_FNS(SCxTDR, 0x20,  8, 0x0c,  8)
-SCIx_FNS(SCxSR,  0x14, 16, 0x10, 16)
-SCIx_FNS(SCxRDR, 0x24,  8, 0x14,  8)
-SCIx_FNS(SCSPTR, 0,     0,    0,  0)
-SCIF_FNS(SCFCR,  0x18, 16)
-SCIF_FNS(SCFDR,  0x1c, 16)
-SCIF_FNS(SCLSR,  0x24, 16)
-#else
-/*      reg      SCI/SH3   SCI/SH4  SCIF/SH3   SCIF/SH4  SCI/H8*/
-/*      name     off  sz   off  sz   off  sz   off  sz   off  sz*/
-SCIx_FNS(SCSMR,  0x00,  8, 0x00,  8, 0x00,  8, 0x00, 16, 0x00,  8)
-SCIx_FNS(SCBRR,  0x02,  8, 0x04,  8, 0x02,  8, 0x04,  8, 0x01,  8)
-SCIx_FNS(SCSCR,  0x04,  8, 0x08,  8, 0x04,  8, 0x08, 16, 0x02,  8)
-SCIx_FNS(SCxTDR, 0x06,  8, 0x0c,  8, 0x06,  8, 0x0C,  8, 0x03,  8)
-SCIx_FNS(SCxSR,  0x08,  8, 0x10,  8, 0x08, 16, 0x10, 16, 0x04,  8)
-SCIx_FNS(SCxRDR, 0x0a,  8, 0x14,  8, 0x0A,  8, 0x14,  8, 0x05,  8)
-SCIF_FNS(SCFCR,                      0x0c,  8, 0x18, 16)
-#if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7780) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7785) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7786)
-SCIF_FNS(SCFDR,			     0x0e, 16, 0x1C, 16)
-SCIF_FNS(SCTFDR,		     0x0e, 16, 0x1C, 16)
-SCIF_FNS(SCRFDR,		     0x0e, 16, 0x20, 16)
-SCIF_FNS(SCSPTR,			0,  0, 0x24, 16)
-SCIF_FNS(SCLSR,				0,  0, 0x28, 16)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
-SCIF_FNS(SCFDR,				0,  0, 0x1C, 16)
-SCIF_FNS(SCTFDR,		     0x0e, 16, 0x1C, 16)
-SCIF_FNS(SCRFDR,		     0x0e, 16, 0x20, 16)
-SCIF_FNS(SCSPTR,			0,  0, 0x24, 16)
-SCIF_FNS(SCLSR,				0,  0, 0x28, 16)
-#else
-SCIF_FNS(SCFDR,                      0x0e, 16, 0x1C, 16)
-#if defined(CONFIG_CPU_SUBTYPE_SH7722)
-SCIF_FNS(SCSPTR,                        0,  0, 0, 0)
-#else
-SCIF_FNS(SCSPTR,                        0,  0, 0x20, 16)
-#endif
-SCIF_FNS(SCLSR,                         0,  0, 0x24, 16)
-#endif
-#endif
-#define sci_in(port, reg) sci_##reg##_in(port)
-#define sci_out(port, reg, value) sci_##reg##_out(port, value)
-
-/* H8/300 series SCI pins assignment */
-#if defined(__H8300H__) || defined(__H8300S__)
-static const struct __attribute__((packed)) {
-	int port;             /* GPIO port no */
-	unsigned short rx,tx; /* GPIO bit no */
-} h8300_sci_pins[] = {
-#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
-	{    /* SCI0 */
-		.port = H8300_GPIO_P9,
-		.rx   = H8300_GPIO_B2,
-		.tx   = H8300_GPIO_B0,
-	},
-	{    /* SCI1 */
-		.port = H8300_GPIO_P9,
-		.rx   = H8300_GPIO_B3,
-		.tx   = H8300_GPIO_B1,
-	},
-	{    /* SCI2 */
-		.port = H8300_GPIO_PB,
-		.rx   = H8300_GPIO_B7,
-		.tx   = H8300_GPIO_B6,
-	}
-#elif defined(CONFIG_H8S2678)
-	{    /* SCI0 */
-		.port = H8300_GPIO_P3,
-		.rx   = H8300_GPIO_B2,
-		.tx   = H8300_GPIO_B0,
-	},
-	{    /* SCI1 */
-		.port = H8300_GPIO_P3,
-		.rx   = H8300_GPIO_B3,
-		.tx   = H8300_GPIO_B1,
-	},
-	{    /* SCI2 */
-		.port = H8300_GPIO_P5,
-		.rx   = H8300_GPIO_B1,
-		.tx   = H8300_GPIO_B0,
-	}
-#endif
-};
-#endif
-
-#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7707) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7708) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7709)
-static inline int sci_rxd_in(struct uart_port *port)
-{
-	if (port->mapbase == 0xfffffe80)
-		return __raw_readb(SCPDR)&0x01 ? 1 : 0; /* SCI */
-	return 1;
-}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7750)  || \
-      defined(CONFIG_CPU_SUBTYPE_SH7751)  || \
-      defined(CONFIG_CPU_SUBTYPE_SH7751R) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7091)
-static inline int sci_rxd_in(struct uart_port *port)
-{
-	if (port->mapbase == 0xffe00000)
-		return __raw_readb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */
-	return 1;
-}
-#elif defined(__H8300H__) || defined(__H8300S__)
-static inline int sci_rxd_in(struct uart_port *port)
-{
-	int ch = (port->mapbase - SMR0) >> 3;
-	return (H8300_SCI_DR(ch) & h8300_sci_pins[ch].rx) ? 1 : 0;
-}
-#else /* default case for non-SCI processors */
-static inline int sci_rxd_in(struct uart_port *port)
-{
-	return 1;
-}
-#endif