8 files changed, 305 insertions, 130 deletions

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 4b4b565c835f..d10230adeb36 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -1254,6 +1254,26 @@ static int __init early_platform_driver_probe_id(char *class_str,
                 }
 
                 if (match) {
+                        /*
+                         * Set up a sensible init_name to enable
+                         * dev_name() and others to be used before the
+                         * rest of the driver core is initialized.
+                         */
+                        if (!match->dev.init_name) {
+                                if (match->id != -1)
+                                        match->dev.init_name =
+                                                kasprintf(GFP_KERNEL, "%s.%d",
+                                                          match->name,
+                                                          match->id);
+                                else
+                                        match->dev.init_name =
+                                                kasprintf(GFP_KERNEL, "%s",
+                                                          match->name);
+
+                                if (!match->dev.init_name)
+                                        return -ENOMEM;
+                        }
+
                         if (epdrv->pdrv->probe(match))
                                 pr_warning("%s: unable to probe %s early.\n",
                                            class_str, match->name);
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index 578595c4425d..c5f66171a713 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -149,13 +149,12 @@ static void sh_cmt_start_stop_ch(struct sh_cmt_priv *p, int start)
 
 static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate)
 {
-        struct sh_timer_config *cfg = p->pdev->dev.platform_data;
         int ret;
 
         /* enable clock */
         ret = clk_enable(p->clk);
         if (ret) {
-                pr_err("sh_cmt: cannot enable clock \"%s\"\n", cfg->clk);
+                dev_err(&p->pdev->dev, "cannot enable clock\n");
                 return ret;
         }
 
@@ -278,7 +277,7 @@ static void sh_cmt_clock_event_program_verify(struct sh_cmt_priv *p,
                         delay = 1;
 
                 if (!delay)
-                        pr_warning("sh_cmt: too long delay\n");
+                        dev_warn(&p->pdev->dev, "too long delay\n");
 
         } while (delay);
 }
@@ -288,7 +287,7 @@ static void sh_cmt_set_next(struct sh_cmt_priv *p, unsigned long delta)
         unsigned long flags;
 
         if (delta > p->max_match_value)
-                pr_warning("sh_cmt: delta out of range\n");
+                dev_warn(&p->pdev->dev, "delta out of range\n");
 
         spin_lock_irqsave(&p->lock, flags);
         p->next_match_value = delta;
@@ -450,7 +449,7 @@ static int sh_cmt_register_clocksource(struct sh_cmt_priv *p,
         cs->resume = sh_cmt_clocksource_resume;
         cs->mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8);
         cs->flags = CLOCK_SOURCE_IS_CONTINUOUS;
-        pr_info("sh_cmt: %s used as clock source\n", cs->name);
+        dev_info(&p->pdev->dev, "used as clock source\n");
         clocksource_register(cs);
         return 0;
 }
@@ -496,13 +495,11 @@ static void sh_cmt_clock_event_mode(enum clock_event_mode mode,
 
         switch (mode) {
         case CLOCK_EVT_MODE_PERIODIC:
-                pr_info("sh_cmt: %s used for periodic clock events\n",
-                        ced->name);
+                dev_info(&p->pdev->dev, "used for periodic clock events\n");
                 sh_cmt_clock_event_start(p, 1);
                 break;
         case CLOCK_EVT_MODE_ONESHOT:
-                pr_info("sh_cmt: %s used for oneshot clock events\n",
-                        ced->name);
+                dev_info(&p->pdev->dev, "used for oneshot clock events\n");
                 sh_cmt_clock_event_start(p, 0);
                 break;
         case CLOCK_EVT_MODE_SHUTDOWN:
@@ -543,7 +540,7 @@ static void sh_cmt_register_clockevent(struct sh_cmt_priv *p,
         ced->set_next_event = sh_cmt_clock_event_next;
         ced->set_mode = sh_cmt_clock_event_mode;
 
-        pr_info("sh_cmt: %s used for clock events\n", ced->name);
+        dev_info(&p->pdev->dev, "used for clock events\n");
         clockevents_register_device(ced);
 }
 
@@ -600,22 +597,26 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
         /* map memory, let mapbase point to our channel */
         p->mapbase = ioremap_nocache(res->start, resource_size(res));
         if (p->mapbase == NULL) {
-                pr_err("sh_cmt: failed to remap I/O memory\n");
+                dev_err(&p->pdev->dev, "failed to remap I/O memory\n");
                 goto err0;
         }
 
         /* request irq using setup_irq() (too early for request_irq()) */
-        p->irqaction.name = cfg->name;
+        p->irqaction.name = dev_name(&p->pdev->dev);
         p->irqaction.handler = sh_cmt_interrupt;
         p->irqaction.dev_id = p;
         p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
 
         /* get hold of clock */
-        p->clk = clk_get(&p->pdev->dev, cfg->clk);
+        p->clk = clk_get(&p->pdev->dev, "cmt_fck");
         if (IS_ERR(p->clk)) {
-                pr_err("sh_cmt: cannot get clock \"%s\"\n", cfg->clk);
-                ret = PTR_ERR(p->clk);
-                goto err1;
+                dev_warn(&p->pdev->dev, "using deprecated clock lookup\n");
+                p->clk = clk_get(&p->pdev->dev, cfg->clk);
+                if (IS_ERR(p->clk)) {
+                        dev_err(&p->pdev->dev, "cannot get clock\n");
+                        ret = PTR_ERR(p->clk);
+                        goto err1;
+                }
         }
 
         if (resource_size(res) == 6) {
@@ -628,17 +629,17 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
                 p->clear_bits = ~0xc000;
         }
 
-        ret = sh_cmt_register(p, cfg->name,
+        ret = sh_cmt_register(p, (char *)dev_name(&p->pdev->dev),
                               cfg->clockevent_rating,
                               cfg->clocksource_rating);
         if (ret) {
-                pr_err("sh_cmt: registration failed\n");
+                dev_err(&p->pdev->dev, "registration failed\n");
                 goto err1;
         }
 
         ret = setup_irq(irq, &p->irqaction);
         if (ret) {
-                pr_err("sh_cmt: failed to request irq %d\n", irq);
+                dev_err(&p->pdev->dev, "failed to request irq %d\n", irq);
                 goto err1;
         }
 
@@ -653,11 +654,10 @@ err0:
 static int __devinit sh_cmt_probe(struct platform_device *pdev)
 {
         struct sh_cmt_priv *p = platform_get_drvdata(pdev);
-        struct sh_timer_config *cfg = pdev->dev.platform_data;
         int ret;
 
         if (p) {
-                pr_info("sh_cmt: %s kept as earlytimer\n", cfg->name);
+                dev_info(&pdev->dev, "kept as earlytimer\n");
                 return 0;
         }
 
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index 4c8a759e60cd..b11882e0f1bd 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -118,13 +118,12 @@ static void sh_mtu2_start_stop_ch(struct sh_mtu2_priv *p, int start)
 
 static int sh_mtu2_enable(struct sh_mtu2_priv *p)
 {
-        struct sh_timer_config *cfg = p->pdev->dev.platform_data;
         int ret;
 
         /* enable clock */
         ret = clk_enable(p->clk);
         if (ret) {
-                pr_err("sh_mtu2: cannot enable clock \"%s\"\n", cfg->clk);
+                dev_err(&p->pdev->dev, "cannot enable clock\n");
                 return ret;
         }
 
@@ -193,8 +192,7 @@ static void sh_mtu2_clock_event_mode(enum clock_event_mode mode,
 
         switch (mode) {
         case CLOCK_EVT_MODE_PERIODIC:
-                pr_info("sh_mtu2: %s used for periodic clock events\n",
-                        ced->name);
+                dev_info(&p->pdev->dev, "used for periodic clock events\n");
                 sh_mtu2_enable(p);
                 break;
         case CLOCK_EVT_MODE_UNUSED:
@@ -221,13 +219,13 @@ static void sh_mtu2_register_clockevent(struct sh_mtu2_priv *p,
         ced->cpumask = cpumask_of(0);
         ced->set_mode = sh_mtu2_clock_event_mode;
 
-        pr_info("sh_mtu2: %s used for clock events\n", ced->name);
+        dev_info(&p->pdev->dev, "used for clock events\n");
         clockevents_register_device(ced);
 
         ret = setup_irq(p->irqaction.irq, &p->irqaction);
         if (ret) {
-                pr_err("sh_mtu2: failed to request irq %d\n",
-                       p->irqaction.irq);
+                dev_err(&p->pdev->dev, "failed to request irq %d\n",
+                        p->irqaction.irq);
                 return;
         }
 }
@@ -273,26 +271,31 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
         /* map memory, let mapbase point to our channel */
         p->mapbase = ioremap_nocache(res->start, resource_size(res));
         if (p->mapbase == NULL) {
-                pr_err("sh_mtu2: failed to remap I/O memory\n");
+                dev_err(&p->pdev->dev, "failed to remap I/O memory\n");
                 goto err0;
         }
 
         /* setup data for setup_irq() (too early for request_irq()) */
-        p->irqaction.name = cfg->name;
+        p->irqaction.name = dev_name(&p->pdev->dev);
         p->irqaction.handler = sh_mtu2_interrupt;
         p->irqaction.dev_id = p;
         p->irqaction.irq = irq;
         p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
 
         /* get hold of clock */
-        p->clk = clk_get(&p->pdev->dev, cfg->clk);
+        p->clk = clk_get(&p->pdev->dev, "mtu2_fck");
         if (IS_ERR(p->clk)) {
-                pr_err("sh_mtu2: cannot get clock \"%s\"\n", cfg->clk);
-                ret = PTR_ERR(p->clk);
-                goto err1;
+                dev_warn(&p->pdev->dev, "using deprecated clock lookup\n");
+                p->clk = clk_get(&p->pdev->dev, cfg->clk);
+                if (IS_ERR(p->clk)) {
+                        dev_err(&p->pdev->dev, "cannot get clock\n");
+                        ret = PTR_ERR(p->clk);
+                        goto err1;
+                }
         }
 
-        return sh_mtu2_register(p, cfg->name, cfg->clockevent_rating);
+        return sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev),
+                                cfg->clockevent_rating);
  err1:
         iounmap(p->mapbase);
  err0:
@@ -302,11 +305,10 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
 static int __devinit sh_mtu2_probe(struct platform_device *pdev)
 {
         struct sh_mtu2_priv *p = platform_get_drvdata(pdev);
-        struct sh_timer_config *cfg = pdev->dev.platform_data;
         int ret;
 
         if (p) {
-                pr_info("sh_mtu2: %s kept as earlytimer\n", cfg->name);
+                dev_info(&pdev->dev, "kept as earlytimer\n");
                 return 0;
         }
 
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 961f5b5ef6a3..6b62283c1aba 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -106,13 +106,12 @@ static void sh_tmu_start_stop_ch(struct sh_tmu_priv *p, int start)
 
 static int sh_tmu_enable(struct sh_tmu_priv *p)
 {
-        struct sh_timer_config *cfg = p->pdev->dev.platform_data;
         int ret;
 
         /* enable clock */
         ret = clk_enable(p->clk);
         if (ret) {
-                pr_err("sh_tmu: cannot enable clock \"%s\"\n", cfg->clk);
+                dev_err(&p->pdev->dev, "cannot enable clock\n");
                 return ret;
         }
 
@@ -228,7 +227,7 @@ static int sh_tmu_register_clocksource(struct sh_tmu_priv *p,
         cs->disable = sh_tmu_clocksource_disable;
         cs->mask = CLOCKSOURCE_MASK(32);
         cs->flags = CLOCK_SOURCE_IS_CONTINUOUS;
-        pr_info("sh_tmu: %s used as clock source\n", cs->name);
+        dev_info(&p->pdev->dev, "used as clock source\n");
         clocksource_register(cs);
         return 0;
 }
@@ -276,13 +275,11 @@ static void sh_tmu_clock_event_mode(enum clock_event_mode mode,
 
         switch (mode) {
         case CLOCK_EVT_MODE_PERIODIC:
-                pr_info("sh_tmu: %s used for periodic clock events\n",
-                        ced->name);
+                dev_info(&p->pdev->dev, "used for periodic clock events\n");
                 sh_tmu_clock_event_start(p, 1);
                 break;
         case CLOCK_EVT_MODE_ONESHOT:
-                pr_info("sh_tmu: %s used for oneshot clock events\n",
-                        ced->name);
+                dev_info(&p->pdev->dev, "used for oneshot clock events\n");
                 sh_tmu_clock_event_start(p, 0);
                 break;
         case CLOCK_EVT_MODE_UNUSED:
@@ -323,13 +320,13 @@ static void sh_tmu_register_clockevent(struct sh_tmu_priv *p,
         ced->set_next_event = sh_tmu_clock_event_next;
         ced->set_mode = sh_tmu_clock_event_mode;
 
-        pr_info("sh_tmu: %s used for clock events\n", ced->name);
+        dev_info(&p->pdev->dev, "used for clock events\n");
         clockevents_register_device(ced);
 
         ret = setup_irq(p->irqaction.irq, &p->irqaction);
         if (ret) {
-                pr_err("sh_tmu: failed to request irq %d\n",
-                       p->irqaction.irq);
+                dev_err(&p->pdev->dev, "failed to request irq %d\n",
+                        p->irqaction.irq);
                 return;
         }
 }
@@ -378,26 +375,30 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
         /* map memory, let mapbase point to our channel */
         p->mapbase = ioremap_nocache(res->start, resource_size(res));
         if (p->mapbase == NULL) {
-                pr_err("sh_tmu: failed to remap I/O memory\n");
+                dev_err(&p->pdev->dev, "failed to remap I/O memory\n");
                 goto err0;
         }
 
         /* setup data for setup_irq() (too early for request_irq()) */
-        p->irqaction.name = cfg->name;
+        p->irqaction.name = dev_name(&p->pdev->dev);
         p->irqaction.handler = sh_tmu_interrupt;
         p->irqaction.dev_id = p;
         p->irqaction.irq = irq;
         p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
 
         /* get hold of clock */
-        p->clk = clk_get(&p->pdev->dev, cfg->clk);
+        p->clk = clk_get(&p->pdev->dev, "tmu_fck");
         if (IS_ERR(p->clk)) {
-                pr_err("sh_tmu: cannot get clock \"%s\"\n", cfg->clk);
-                ret = PTR_ERR(p->clk);
-                goto err1;
+                dev_warn(&p->pdev->dev, "using deprecated clock lookup\n");
+                p->clk = clk_get(&p->pdev->dev, cfg->clk);
+                if (IS_ERR(p->clk)) {
+                        dev_err(&p->pdev->dev, "cannot get clock\n");
+                        ret = PTR_ERR(p->clk);
+                        goto err1;
+                }
         }
 
-        return sh_tmu_register(p, cfg->name,
+        return sh_tmu_register(p, (char *)dev_name(&p->pdev->dev),
                                cfg->clockevent_rating,
                                cfg->clocksource_rating);
  err1:
@@ -409,11 +410,10 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
 static int __devinit sh_tmu_probe(struct platform_device *pdev)
 {
         struct sh_tmu_priv *p = platform_get_drvdata(pdev);
-        struct sh_timer_config *cfg = pdev->dev.platform_data;
         int ret;
 
         if (p) {
-                pr_info("sh_tmu: %s kept as earlytimer\n", cfg->name);
+                dev_info(&pdev->dev, "kept as earlytimer\n");
                 return 0;
         }
 
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 5d17e09cb625..7a18b580f626 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -25,8 +25,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
-
-#include <asm/dmaengine.h>
+#include <linux/sh_dma.h>
 
 #include "shdma.h"
 
@@ -44,7 +43,7 @@ enum sh_dmae_desc_status {
 #define LOG2_DEFAULT_XFER_SIZE  2
 
 /* A bitmask with bits enough for enum sh_dmae_slave_chan_id */
-static unsigned long sh_dmae_slave_used[BITS_TO_LONGS(SHDMA_SLAVE_NUMBER)];
+static unsigned long sh_dmae_slave_used[BITS_TO_LONGS(SH_DMA_SLAVE_NUMBER)];
 
 static void sh_dmae_chan_ld_cleanup(struct sh_dmae_chan *sh_chan, bool all);
 
@@ -266,7 +265,7 @@ static struct sh_desc *sh_dmae_get_desc(struct sh_dmae_chan *sh_chan)
 }
 
 static struct sh_dmae_slave_config *sh_dmae_find_slave(
-        struct sh_dmae_chan *sh_chan, enum sh_dmae_slave_chan_id slave_id)
+        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,
@@ -274,11 +273,11 @@ static struct sh_dmae_slave_config *sh_dmae_find_slave(
         struct sh_dmae_pdata *pdata = shdev->pdata;
         int i;
 
-        if ((unsigned)slave_id >= SHDMA_SLAVE_NUMBER)
+        if (param->slave_id >= SH_DMA_SLAVE_NUMBER)
                 return NULL;
 
         for (i = 0; i < pdata->slave_num; i++)
-                if (pdata->slave[i].slave_id == slave_id)
+                if (pdata->slave[i].slave_id == param->slave_id)
                         return pdata->slave + i;
 
         return NULL;
@@ -299,7 +298,7 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
         if (param) {
                 struct sh_dmae_slave_config *cfg;
 
-                cfg = sh_dmae_find_slave(sh_chan, param->slave_id);
+                cfg = sh_dmae_find_slave(sh_chan, param);
                 if (!cfg)
                         return -EINVAL;
 
diff --git a/drivers/dma/shdma.h b/drivers/dma/shdma.h
index 153609a1e96c..4021275a0a43 100644
--- a/drivers/dma/shdma.h
+++ b/drivers/dma/shdma.h
@@ -17,8 +17,8 @@
 #include <linux/interrupt.h>
 #include <linux/list.h>
 
-#include <asm/dmaengine.h>
-
+#define SH_DMAC_MAX_CHANNELS 6
+#define SH_DMA_SLAVE_NUMBER 256
 #define SH_DMA_TCR_MAX 0x00FFFFFF       /* 16MB */
 
 struct device;
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 309de6be8204..291bc08e2e84 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -82,16 +82,16 @@ struct sci_port {
 
         /* Interface clock */
         struct clk              *iclk;
-        /* Data clock */
-        struct clk              *dclk;
+        /* Function clock */
+        struct clk              *fclk;
 
         struct list_head        node;
         struct dma_chan                 *chan_tx;
         struct dma_chan                 *chan_rx;
 #ifdef CONFIG_SERIAL_SH_SCI_DMA
         struct device                   *dma_dev;
-        enum sh_dmae_slave_chan_id      slave_tx;
-        enum sh_dmae_slave_chan_id      slave_rx;
+        unsigned int                    slave_tx;
+        unsigned int                    slave_rx;
         struct dma_async_tx_descriptor  *desc_tx;
         struct dma_async_tx_descriptor  *desc_rx[2];
         dma_cookie_t                    cookie_tx;
@@ -106,6 +106,7 @@ struct sci_port {
         struct work_struct              work_tx;
         struct work_struct              work_rx;
         struct timer_list               rx_timer;
+        unsigned int                    rx_timeout;
 #endif
 };
 
@@ -673,22 +674,22 @@ static irqreturn_t sci_rx_interrupt(int irq, void *ptr)
         struct sci_port *s = to_sci_port(port);
 
         if (s->chan_rx) {
-                unsigned long tout;
                 u16 scr = sci_in(port, SCSCR);
                 u16 ssr = sci_in(port, SCxSR);
 
                 /* Disable future Rx interrupts */
-                sci_out(port, SCSCR, scr & ~SCI_CTRL_FLAGS_RIE);
+                if (port->type == PORT_SCIFA) {
+                        disable_irq_nosync(irq);
+                        scr |= 0x4000;
+                } else {
+                        scr &= ~SCI_CTRL_FLAGS_RIE;
+                }
+                sci_out(port, SCSCR, scr);
                 /* Clear current interrupt */
                 sci_out(port, SCxSR, ssr & ~(1 | SCxSR_RDxF(port)));
-                /* Calculate delay for 1.5 DMA buffers */
-                tout = (port->timeout - HZ / 50) * s->buf_len_rx * 3 /
-                        port->fifosize / 2;
-                dev_dbg(port->dev, "Rx IRQ: setup timeout in %lu ms\n",
-                        tout * 1000 / HZ);
-                if (tout < 2)
-                        tout = 2;
-                mod_timer(&s->rx_timer, jiffies + tout);
+                dev_dbg(port->dev, "Rx IRQ %lu: setup t-out in %u jiffies\n",
+                        jiffies, s->rx_timeout);
+                mod_timer(&s->rx_timer, jiffies + s->rx_timeout);
 
                 return IRQ_HANDLED;
         }
@@ -798,7 +799,7 @@ static int sci_notifier(struct notifier_block *self,
             (phase == CPUFREQ_RESUMECHANGE)) {
                 spin_lock_irqsave(&priv->lock, flags);
                 list_for_each_entry(sci_port, &priv->ports, node)
-                        sci_port->port.uartclk = clk_get_rate(sci_port->dclk);
+                        sci_port->port.uartclk = clk_get_rate(sci_port->iclk);
                 spin_unlock_irqrestore(&priv->lock, flags);
         }
 
@@ -809,21 +810,17 @@ static void sci_clk_enable(struct uart_port *port)
 {
         struct sci_port *sci_port = to_sci_port(port);
 
-        clk_enable(sci_port->dclk);
-        sci_port->port.uartclk = clk_get_rate(sci_port->dclk);
-
-        if (sci_port->iclk)
-                clk_enable(sci_port->iclk);
+        clk_enable(sci_port->iclk);
+        sci_port->port.uartclk = clk_get_rate(sci_port->iclk);
+        clk_enable(sci_port->fclk);
 }
 
 static void sci_clk_disable(struct uart_port *port)
 {
         struct sci_port *sci_port = to_sci_port(port);
 
-        if (sci_port->iclk)
-                clk_disable(sci_port->iclk);
-
-        clk_disable(sci_port->dclk);
+        clk_disable(sci_port->fclk);
+        clk_disable(sci_port->iclk);
 }
 
 static int sci_request_irq(struct sci_port *port)
@@ -912,22 +909,26 @@ static void sci_dma_tx_complete(void *arg)
 
         spin_lock_irqsave(&port->lock, flags);
 
-        xmit->tail += s->sg_tx.length;
+        xmit->tail += sg_dma_len(&s->sg_tx);
         xmit->tail &= UART_XMIT_SIZE - 1;
 
-        port->icount.tx += s->sg_tx.length;
+        port->icount.tx += sg_dma_len(&s->sg_tx);
 
         async_tx_ack(s->desc_tx);
         s->cookie_tx = -EINVAL;
         s->desc_tx = NULL;
 
-        spin_unlock_irqrestore(&port->lock, flags);
-
         if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
                 uart_write_wakeup(port);
 
-        if (uart_circ_chars_pending(xmit))
+        if (!uart_circ_empty(xmit)) {
                 schedule_work(&s->work_tx);
+        } else if (port->type == PORT_SCIFA) {
+                u16 ctrl = sci_in(port, SCSCR);
+                sci_out(port, SCSCR, ctrl & ~SCI_CTRL_FLAGS_TIE);
+        }
+
+        spin_unlock_irqrestore(&port->lock, flags);
 }
 
 /* Locking: called with port lock held */
@@ -971,13 +972,13 @@ static void sci_dma_rx_complete(void *arg)
         unsigned long flags;
         int count;
 
-        dev_dbg(port->dev, "%s(%d)\n", __func__, port->line);
+        dev_dbg(port->dev, "%s(%d) active #%d\n", __func__, port->line, s->active_rx);
 
         spin_lock_irqsave(&port->lock, flags);
 
         count = sci_dma_rx_push(s, tty, s->buf_len_rx);
 
-        mod_timer(&s->rx_timer, jiffies + msecs_to_jiffies(5));
+        mod_timer(&s->rx_timer, jiffies + s->rx_timeout);
 
         spin_unlock_irqrestore(&port->lock, flags);
 
@@ -1049,6 +1050,8 @@ static void sci_submit_rx(struct sci_port *s)
                         sci_rx_dma_release(s, true);
                         return;
                 }
+                dev_dbg(s->port.dev, "%s(): cookie %d to #%d\n", __func__,
+                        s->cookie_rx[i], i);
         }
 
         s->active_rx = s->cookie_rx[0];
@@ -1106,10 +1109,10 @@ static void work_fn_rx(struct work_struct *work)
                 return;
         }
 
-        dev_dbg(port->dev, "%s: cookie %d #%d\n", __func__,
-                s->cookie_rx[new], new);
-
         s->active_rx = s->cookie_rx[!new];
+
+        dev_dbg(port->dev, "%s: cookie %d #%d, new active #%d\n", __func__,
+                s->cookie_rx[new], new, s->active_rx);
 }
 
 static void work_fn_tx(struct work_struct *work)
@@ -1130,14 +1133,13 @@ static void work_fn_tx(struct work_struct *work)
          */
         spin_lock_irq(&port->lock);
         sg->offset = xmit->tail & (UART_XMIT_SIZE - 1);
-        sg->dma_address = (sg_dma_address(sg) & ~(UART_XMIT_SIZE - 1)) +
+        sg_dma_address(sg) = (sg_dma_address(sg) & ~(UART_XMIT_SIZE - 1)) +
                 sg->offset;
-        sg->length = min((int)CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE),
+        sg_dma_len(sg) = min((int)CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE),
                 CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE));
-        sg->dma_length = sg->length;
         spin_unlock_irq(&port->lock);
 
-        BUG_ON(!sg->length);
+        BUG_ON(!sg_dma_len(sg));
 
         desc = chan->device->device_prep_slave_sg(chan,
                         sg, s->sg_len_tx, DMA_TO_DEVICE,
@@ -1172,23 +1174,28 @@ static void work_fn_tx(struct work_struct *work)
 
 static void sci_start_tx(struct uart_port *port)
 {
+        struct sci_port *s = to_sci_port(port);
         unsigned short ctrl;
 
 #ifdef CONFIG_SERIAL_SH_SCI_DMA
-        struct sci_port *s = to_sci_port(port);
-
-        if (s->chan_tx) {
-                if (!uart_circ_empty(&s->port.state->xmit) && s->cookie_tx < 0)
-                        schedule_work(&s->work_tx);
-
-                return;
+        if (port->type == PORT_SCIFA) {
+                u16 new, scr = sci_in(port, SCSCR);
+                if (s->chan_tx)
+                        new = scr | 0x8000;
+                else
+                        new = scr & ~0x8000;
+                if (new != scr)
+                        sci_out(port, SCSCR, new);
         }
+        if (s->chan_tx && !uart_circ_empty(&s->port.state->xmit) &&
+            s->cookie_tx < 0)
+                schedule_work(&s->work_tx);
 #endif
-
-        /* Set TIE (Transmit Interrupt Enable) bit in SCSCR */
-        ctrl = sci_in(port, SCSCR);
-        ctrl |= SCI_CTRL_FLAGS_TIE;
-        sci_out(port, SCSCR, ctrl);
+        if (!s->chan_tx || port->type == PORT_SCIFA) {
+                /* Set TIE (Transmit Interrupt Enable) bit in SCSCR */
+                ctrl = sci_in(port, SCSCR);
+                sci_out(port, SCSCR, ctrl | SCI_CTRL_FLAGS_TIE);
+        }
 }
 
 static void sci_stop_tx(struct uart_port *port)
@@ -1197,6 +1204,8 @@ static void sci_stop_tx(struct uart_port *port)
 
         /* Clear TIE (Transmit Interrupt Enable) bit in SCSCR */
         ctrl = sci_in(port, SCSCR);
+        if (port->type == PORT_SCIFA)
+                ctrl &= ~0x8000;
         ctrl &= ~SCI_CTRL_FLAGS_TIE;
         sci_out(port, SCSCR, ctrl);
 }
@@ -1207,6 +1216,8 @@ static void sci_start_rx(struct uart_port *port)
 
         /* Set RIE (Receive Interrupt Enable) bit in SCSCR */
         ctrl |= sci_in(port, SCSCR);
+        if (port->type == PORT_SCIFA)
+                ctrl &= ~0x4000;
         sci_out(port, SCSCR, ctrl);
 }
 
@@ -1216,6 +1227,8 @@ static void sci_stop_rx(struct uart_port *port)
 
         /* Clear RIE (Receive Interrupt Enable) bit in SCSCR */
         ctrl = sci_in(port, SCSCR);
+        if (port->type == PORT_SCIFA)
+                ctrl &= ~0x4000;
         ctrl &= ~(SCI_CTRL_FLAGS_RIE | SCI_CTRL_FLAGS_REIE);
         sci_out(port, SCSCR, ctrl);
 }
@@ -1250,8 +1263,12 @@ static void rx_timer_fn(unsigned long arg)
 {
         struct sci_port *s = (struct sci_port *)arg;
         struct uart_port *port = &s->port;
-
         u16 scr = sci_in(port, SCSCR);
+
+        if (port->type == PORT_SCIFA) {
+                scr &= ~0x4000;
+                enable_irq(s->irqs[1]);
+        }
         sci_out(port, SCSCR, scr | SCI_CTRL_FLAGS_RIE);
         dev_dbg(port->dev, "DMA Rx timed out\n");
         schedule_work(&s->work_rx);
@@ -1338,8 +1355,7 @@ static void sci_request_dma(struct uart_port *port)
                         sg_init_table(sg, 1);
                         sg_set_page(sg, virt_to_page(buf[i]), s->buf_len_rx,
                                     (int)buf[i] & ~PAGE_MASK);
-                        sg->dma_address = dma[i];
-                        sg->dma_length = sg->length;
+                        sg_dma_address(sg) = dma[i];
                 }
 
                 INIT_WORK(&s->work_rx, work_fn_rx);
@@ -1402,8 +1418,12 @@ static void sci_shutdown(struct uart_port *port)
 static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
                             struct ktermios *old)
 {
+#ifdef CONFIG_SERIAL_SH_SCI_DMA
+        struct sci_port *s = to_sci_port(port);
+#endif
         unsigned int status, baud, smr_val, max_baud;
         int t = -1;
+        u16 scfcr = 0;
 
         /*
          * earlyprintk comes here early on with port->uartclk set to zero.
@@ -1426,7 +1446,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
         sci_out(port, SCSCR, 0x00);     /* TE=0, RE=0, CKE1=0 */
 
         if (port->type != PORT_SCI)
-                sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST);
+                sci_out(port, SCFCR, scfcr | SCFCR_RFRST | SCFCR_TFRST);
 
         smr_val = sci_in(port, SCSMR) & 3;
         if ((termios->c_cflag & CSIZE) == CS7)
@@ -1457,10 +1477,32 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
         }
 
         sci_init_pins(port, termios->c_cflag);
-        sci_out(port, SCFCR, (termios->c_cflag & CRTSCTS) ? SCFCR_MCE : 0);
+        sci_out(port, SCFCR, scfcr | ((termios->c_cflag & CRTSCTS) ? SCFCR_MCE : 0));
 
         sci_out(port, SCSCR, SCSCR_INIT(port));
 
+#ifdef CONFIG_SERIAL_SH_SCI_DMA
+        /*
+         * Calculate delay for 1.5 DMA buffers: see
+         * drivers/serial/serial_core.c::uart_update_timeout(). With 10 bits
+         * (CS8), 250Hz, 115200 baud and 64 bytes FIFO, the above function
+         * calculates 1 jiffie for the data plus 5 jiffies for the "slop(e)."
+         * Then below we calculate 3 jiffies (12ms) for 1.5 DMA buffers (3 FIFO
+         * sizes), but it has been found out experimentally, that this is not
+         * enough: the driver too often needlessly runs on a DMA timeout. 20ms
+         * as a minimum seem to work perfectly.
+         */
+        if (s->chan_rx) {
+                s->rx_timeout = (port->timeout - HZ / 50) * s->buf_len_rx * 3 /
+                        port->fifosize / 2;
+                dev_dbg(port->dev,
+                        "DMA Rx t-out %ums, tty t-out %u jiffies\n",
+                        s->rx_timeout * 1000 / HZ, port->timeout);
+                if (s->rx_timeout < msecs_to_jiffies(20))
+                        s->rx_timeout = msecs_to_jiffies(20);
+        }
+#endif
+
         if ((termios->c_cflag & CREAD) != 0)
                 sci_start_rx(port);
 }
@@ -1552,10 +1594,10 @@ static struct uart_ops sci_uart_ops = {
 #endif
 };
 
-static void __devinit sci_init_single(struct platform_device *dev,
-                                      struct sci_port *sci_port,
-                                      unsigned int index,
-                                      struct plat_sci_port *p)
+static int __devinit sci_init_single(struct platform_device *dev,
+                                     struct sci_port *sci_port,
+                                     unsigned int index,
+                                     struct plat_sci_port *p)
 {
         struct uart_port *port = &sci_port->port;
 
@@ -1576,8 +1618,23 @@ static void __devinit sci_init_single(struct platform_device *dev,
         }
 
         if (dev) {
-                sci_port->iclk = p->clk ? clk_get(&dev->dev, p->clk) : NULL;
-                sci_port->dclk = clk_get(&dev->dev, "peripheral_clk");
+                sci_port->iclk = clk_get(&dev->dev, "sci_ick");
+                if (IS_ERR(sci_port->iclk)) {
+                        sci_port->iclk = clk_get(&dev->dev, "peripheral_clk");
+                        if (IS_ERR(sci_port->iclk)) {
+                                dev_err(&dev->dev, "can't get iclk\n");
+                                return PTR_ERR(sci_port->iclk);
+                        }
+                }
+
+                /*
+                 * The function clock is optional, ignore it if we can't
+                 * find it.
+                 */
+                sci_port->fclk = clk_get(&dev->dev, "sci_fck");
+                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;
@@ -1604,6 +1661,7 @@ static void __devinit sci_init_single(struct platform_device *dev,
 #endif
 
         memcpy(&sci_port->irqs, &p->irqs, sizeof(p->irqs));
+        return 0;
 }
 
 #ifdef CONFIG_SERIAL_SH_SCI_CONSOLE
@@ -1753,8 +1811,11 @@ static int sci_remove(struct platform_device *dev)
         cpufreq_unregister_notifier(&priv->clk_nb, CPUFREQ_TRANSITION_NOTIFIER);
 
         spin_lock_irqsave(&priv->lock, flags);
-        list_for_each_entry(p, &priv->ports, node)
+        list_for_each_entry(p, &priv->ports, node) {
                 uart_remove_one_port(&sci_uart_driver, &p->port);
+                clk_put(p->iclk);
+                clk_put(p->fclk);
+        }
         spin_unlock_irqrestore(&priv->lock, flags);
 
         kfree(priv);
@@ -1780,7 +1841,9 @@ static int __devinit sci_probe_single(struct platform_device *dev,
                 return 0;
         }
 
-        sci_init_single(dev, sciport, index, p);
+        ret = sci_init_single(dev, sciport, index, p);
+        if (ret)
+                return ret;
 
         ret = uart_add_one_port(&sci_uart_driver, &sciport->port);
         if (ret)
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index a3d8677af6a5..f43850527645 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -44,6 +44,12 @@ struct intc_handle_int {
         unsigned long handle;
 };
 
+struct intc_window {
+        phys_addr_t phys;
+        void __iomem *virt;
+        unsigned long size;
+};
+
 struct intc_desc_int {
         struct list_head list;
         struct sys_device sysdev;
@@ -57,6 +63,8 @@ struct intc_desc_int {
         unsigned int nr_prio;
         struct intc_handle_int *sense;
         unsigned int nr_sense;
+        struct intc_window *window;
+        unsigned int nr_windows;
         struct irq_chip chip;
 };
 
@@ -446,11 +454,39 @@ static int intc_set_sense(unsigned int irq, unsigned int type)
         return 0;
 }
 
+static unsigned long intc_phys_to_virt(struct intc_desc_int *d,
+                                       unsigned long address)
+{
+        struct intc_window *window;
+        int k;
+
+        /* scan through physical windows and convert address */
+        for (k = 0; k < d->nr_windows; k++) {
+                window = d->window + k;
+
+                if (address < window->phys)
+                        continue;
+
+                if (address >= (window->phys + window->size))
+                        continue;
+
+                address -= window->phys;
+                address += (unsigned long)window->virt;
+
+                return address;
+        }
+
+        /* no windows defined, register must be 1:1 mapped virt:phys */
+        return address;
+}
+
 static unsigned int __init intc_get_reg(struct intc_desc_int *d,
-                                 unsigned long address)
+                                        unsigned long address)
 {
         unsigned int k;
 
+        address = intc_phys_to_virt(d, address);
+
         for (k = 0; k < d->nr_reg; k++) {
                 if (d->reg[k] == address)
                         return k;
@@ -800,6 +836,8 @@ static unsigned int __init save_reg(struct intc_desc_int *d,
                                     unsigned int smp)
 {
         if (value) {
+                value = intc_phys_to_virt(d, value);
+
                 d->reg[cnt] = value;
 #ifdef CONFIG_SMP
                 d->smp[cnt] = smp;
@@ -815,25 +853,52 @@ static void intc_redirect_irq(unsigned int irq, struct irq_desc *desc)
         generic_handle_irq((unsigned int)get_irq_data(irq));
 }
 
-void __init register_intc_controller(struct intc_desc *desc)
+int __init register_intc_controller(struct intc_desc *desc)
 {
         unsigned int i, k, smp;
         struct intc_hw_desc *hw = &desc->hw;
         struct intc_desc_int *d;
+        struct resource *res;
 
         d = kzalloc(sizeof(*d), GFP_NOWAIT);
+        if (!d)
+                goto err0;
 
         INIT_LIST_HEAD(&d->list);
         list_add(&d->list, &intc_list);
 
+        if (desc->num_resources) {
+                d->nr_windows = desc->num_resources;
+                d->window = kzalloc(d->nr_windows * sizeof(*d->window),
+                                    GFP_NOWAIT);
+                if (!d->window)
+                        goto err1;
+
+                for (k = 0; k < d->nr_windows; k++) {
+                        res = desc->resource + k;
+                        WARN_ON(resource_type(res) != IORESOURCE_MEM);
+                        d->window[k].phys = res->start;
+                        d->window[k].size = resource_size(res);
+                        d->window[k].virt = ioremap_nocache(res->start,
+                                                         resource_size(res));
+                        if (!d->window[k].virt)
+                                goto err2;
+                }
+        }
+
         d->nr_reg = hw->mask_regs ? hw->nr_mask_regs * 2 : 0;
         d->nr_reg += hw->prio_regs ? hw->nr_prio_regs * 2 : 0;
         d->nr_reg += hw->sense_regs ? hw->nr_sense_regs : 0;
         d->nr_reg += hw->ack_regs ? hw->nr_ack_regs : 0;
 
         d->reg = kzalloc(d->nr_reg * sizeof(*d->reg), GFP_NOWAIT);
+        if (!d->reg)
+                goto err2;
+
 #ifdef CONFIG_SMP
         d->smp = kzalloc(d->nr_reg * sizeof(*d->smp), GFP_NOWAIT);
+        if (!d->smp)
+                goto err3;
 #endif
         k = 0;
 
@@ -848,6 +913,8 @@ void __init register_intc_controller(struct intc_desc *desc)
         if (hw->prio_regs) {
                 d->prio = kzalloc(hw->nr_vectors * sizeof(*d->prio),
                                   GFP_NOWAIT);
+                if (!d->prio)
+                        goto err4;
 
                 for (i = 0; i < hw->nr_prio_regs; i++) {
                         smp = IS_SMP(hw->prio_regs[i]);
@@ -859,6 +926,8 @@ void __init register_intc_controller(struct intc_desc *desc)
         if (hw->sense_regs) {
                 d->sense = kzalloc(hw->nr_vectors * sizeof(*d->sense),
                                    GFP_NOWAIT);
+                if (!d->sense)
+                        goto err5;
 
                 for (i = 0; i < hw->nr_sense_regs; i++)
                         k += save_reg(d, k, hw->sense_regs[i].reg, 0);
@@ -941,6 +1010,28 @@ void __init register_intc_controller(struct intc_desc *desc)
         /* enable bits matching force_enable after registering irqs */
         if (desc->force_enable)
                 intc_enable_disable_enum(desc, d, desc->force_enable, 1);
+
+        return 0;
+err5:
+        kfree(d->prio);
+err4:
+#ifdef CONFIG_SMP
+        kfree(d->smp);
+err3:
+#endif
+        kfree(d->reg);
+err2:
+        for (k = 0; k < d->nr_windows; k++)
+                if (d->window[k].virt)
+                        iounmap(d->window[k].virt);
+
+        kfree(d->window);
+err1:
+        kfree(d);
+err0:
+        pr_err("unable to allocate INTC memory\n");
+
+        return -ENOMEM;
 }
 
 static int intc_suspend(struct sys_device *dev, pm_message_t state)