Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (112 commits)
  sh: Move SH-4 CPU headers down one more level.
  sh: Only build in gpio.o when CONFIG_GENERIC_GPIO is selected.
  sh: Migrate common board headers to mach-common/.
  sh: Move the CPU definition headers from asm/ to cpu/.
  serial: sh-sci: Add support SCIF of SH7723
  video: add sh_mobile_lcdc platform flags
  video: remove unused sh_mobile_lcdc platform data
  sh: remove consistent alloc cruft
  sh: add dynamic crash base address support
  sh: reduce Migo-R smc91x overruns
  sh: Fix up some merge damage.
  Fix debugfs_create_file's error checking method for arch/sh/mm/
  Fix debugfs_create_dir's error checking method for arch/sh/kernel/
  sh: ap325rxa: Add support RTC RX-8564LC in AP325RXA board
  sh: Use sh7720 GPIO on magicpanelr2 board
  sh: Add sh7720 pinmux code
  sh: Use sh7203 GPIO on rsk7203 board
  sh: Add sh7203 pinmux code
  sh: Use sh7723 GPIO on AP325RXA board
  sh: Add sh7723 pinmux code
  ...

2 files changed, 62 insertions, 51 deletions

diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 3df2aae..3b9d2d8 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -3,7 +3,7 @@
  *
  * SuperH on-chip serial module support.  (SCI with no FIFO / with FIFO)
  *
- *  Copyright (C) 2002 - 2006  Paul Mundt
+ *  Copyright (C) 2002 - 2008  Paul Mundt
  *  Modified to support SH7720 SCIF. Markus Brunner, Mark Jonas (Jul 2007).
  *
  * based off of the old drivers/char/sh-sci.c by:
@@ -46,6 +46,7 @@
 #include <linux/cpufreq.h>
 #include <linux/clk.h>
 #include <linux/ctype.h>
+#include <linux/err.h>
 
 #ifdef CONFIG_SUPERH
 #include <asm/clock.h>
@@ -78,7 +79,7 @@ struct sci_port {
 	struct timer_list	break_timer;
 	int			break_flag;
 
-#ifdef CONFIG_SUPERH
+#ifdef CONFIG_HAVE_CLK
 	/* Port clock */
 	struct clk		*clk;
 #endif
@@ -831,7 +832,7 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
 	return IRQ_HANDLED;
 }
 
-#ifdef CONFIG_CPU_FREQ
+#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_HAVE_CLK)
 /*
  * Here we define a transistion notifier so that we can update all of our
  * ports' baud rate when the peripheral clock changes.
@@ -860,7 +861,7 @@ static int sci_notifier(struct notifier_block *self,
 			 * Clean this up later..
 			 */
 			clk = clk_get(NULL, "module_clk");
-			port->uartclk = clk_get_rate(clk) * 16;
+			port->uartclk = clk_get_rate(clk);
 			clk_put(clk);
 		}
 
@@ -873,7 +874,7 @@ static int sci_notifier(struct notifier_block *self,
 }
 
 static struct notifier_block sci_nb = { &sci_notifier, NULL, 0 };
-#endif /* CONFIG_CPU_FREQ */
+#endif /* CONFIG_CPU_FREQ && CONFIG_HAVE_CLK */
 
 static int sci_request_irq(struct sci_port *port)
 {
@@ -1008,7 +1009,7 @@ static int sci_startup(struct uart_port *port)
 	if (s->enable)
 		s->enable(port);
 
-#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
+#ifdef CONFIG_HAVE_CLK
 	s->clk = clk_get(NULL, "module_clk");
 #endif
 
@@ -1030,7 +1031,7 @@ static void sci_shutdown(struct uart_port *port)
 	if (s->disable)
 		s->disable(port);
 
-#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
+#ifdef CONFIG_HAVE_CLK
 	clk_put(s->clk);
 	s->clk = NULL;
 #endif
@@ -1041,24 +1042,11 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 {
 	struct sci_port *s = &sci_ports[port->line];
 	unsigned int status, baud, smr_val;
-	int t;
+	int t = -1;
 
 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
-
-	switch (baud) {
-		case 0:
-			t = -1;
-			break;
-		default:
-		{
-#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
-			t = SCBRR_VALUE(baud, clk_get_rate(s->clk));
-#else
-			t = SCBRR_VALUE(baud);
-#endif
-			break;
-		}
-	}
+	if (likely(baud))
+		t = SCBRR_VALUE(baud, port->uartclk);
 
 	do {
 		status = sci_in(port, SCxSR);
@@ -1113,7 +1101,7 @@ static const char *sci_type(struct uart_port *port)
 		case PORT_IRDA: return "irda";
 	}
 
-	return 0;
+	return NULL;
 }
 
 static void sci_release_port(struct uart_port *port)
@@ -1145,12 +1133,16 @@ static void sci_config_port(struct uart_port *port, int flags)
 		break;
 	}
 
-#if defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
-	if (port->mapbase == 0)
+	if (port->flags & UPF_IOREMAP && !port->membase) {
+#if defined(CONFIG_SUPERH64)
 		port->mapbase = onchip_remap(SCIF_ADDR_SH5, 1024, "SCIF");
-
-	port->membase = (void __iomem *)port->mapbase;
+		port->membase = (void __iomem *)port->mapbase;
+#else
+		port->membase = ioremap_nocache(port->mapbase, 0x40);
 #endif
+
+		printk(KERN_ERR "sci: can't remap port#%d\n", port->line);
+	}
 }
 
 static int sci_verify_port(struct uart_port *port, struct serial_struct *ser)
@@ -1207,17 +1199,17 @@ static void __init sci_init_ports(void)
 		sci_ports[i].disable	= h8300_sci_disable;
 #endif
 		sci_ports[i].port.uartclk = CONFIG_CPU_CLOCK;
-#elif defined(CONFIG_SUPERH64)
-		sci_ports[i].port.uartclk = current_cpu_data.module_clock * 16;
-#else
+#elif defined(CONFIG_HAVE_CLK)
 		/*
 		 * XXX: We should use a proper SCI/SCIF clock
 		 */
 		{
 			struct clk *clk = clk_get(NULL, "module_clk");
-			sci_ports[i].port.uartclk = clk_get_rate(clk) * 16;
+			sci_ports[i].port.uartclk = clk_get_rate(clk);
 			clk_put(clk);
 		}
+#else
+#error "Need a valid uartclk"
 #endif
 
 		sci_ports[i].break_timer.data = (unsigned long)&sci_ports[i];
@@ -1285,7 +1277,7 @@ static int __init serial_console_setup(struct console *co, char *options)
 
 	port->type = serial_console_port->type;
 
-#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
+#ifdef CONFIG_HAVE_CLK
 	if (!serial_console_port->clk)
 		serial_console_port->clk = clk_get(NULL, "module_clk");
 #endif
@@ -1436,7 +1428,7 @@ static struct uart_driver sci_uart_driver = {
 static int __devinit sci_probe(struct platform_device *dev)
 {
 	struct plat_sci_port *p = dev->dev.platform_data;
-	int i;
+	int i, ret = -EINVAL;
 
 	for (i = 0; p && p->flags != 0; p++, i++) {
 		struct sci_port *sciport = &sci_ports[i];
@@ -1453,12 +1445,22 @@ static int __devinit sci_probe(struct platform_device *dev)
 
 		sciport->port.mapbase	= p->mapbase;
 
-		/*
-		 * For the simple (and majority of) cases where we don't need
-		 * to do any remapping, just cast the cookie directly.
-		 */
-		if (p->mapbase && !p->membase && !(p->flags & UPF_IOREMAP))
-			p->membase = (void __iomem *)p->mapbase;
+		if (p->mapbase && !p->membase) {
+			if (p->flags & UPF_IOREMAP) {
+				p->membase = ioremap_nocache(p->mapbase, 0x40);
+				if (IS_ERR(p->membase)) {
+					ret = PTR_ERR(p->membase);
+					goto err_unreg;
+				}
+			} else {
+				/*
+				 * For the simple (and majority of) cases
+				 * where we don't need to do any remapping,
+				 * just cast the cookie directly.
+				 */
+				p->membase = (void __iomem *)p->mapbase;
+			}
+		}
 
 		sciport->port.membase	= p->membase;
 
@@ -1479,7 +1481,7 @@ static int __devinit sci_probe(struct platform_device *dev)
 	kgdb_putchar	= kgdb_sci_putchar;
 #endif
 
-#ifdef CONFIG_CPU_FREQ
+#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_HAVE_CLK)
 	cpufreq_register_notifier(&sci_nb, CPUFREQ_TRANSITION_NOTIFIER);
 	dev_info(&dev->dev, "CPU frequency notifier registered\n");
 #endif
@@ -1489,6 +1491,12 @@ static int __devinit sci_probe(struct platform_device *dev)
 #endif
 
 	return 0;
+
+err_unreg:
+	for (i = i - 1; i >= 0; i--)
+		uart_remove_one_port(&sci_uart_driver, &sci_ports[i].port);
+
+	return ret;
 }
 
 static int __devexit sci_remove(struct platform_device *dev)
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 8a0749e..7cd28b2 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -320,18 +320,16 @@
 #define SCI_EVENT_WRITE_WAKEUP	0
 
 #define SCI_IN(size, offset)					\
-  unsigned int addr = port->mapbase + (offset);			\
   if ((size) == 8) {						\
-    return ctrl_inb(addr);					\
+    return ioread8(port->membase + (offset));			\
   } else {							\
-    return ctrl_inw(addr);					\
+    return ioread16(port->membase + (offset));			\
   }
 #define SCI_OUT(size, offset, value)				\
-  unsigned int addr = port->mapbase + (offset);			\
   if ((size) == 8) {						\
-    ctrl_outb(value, addr);					\
+    iowrite8(value, port->membase + (offset));			\
   } else if ((size) == 16) {					\
-    ctrl_outw(value, addr);					\
+    iowrite16(value, port->membase + (offset));			\
   }
 
 #define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\
@@ -791,11 +789,16 @@ static inline int sci_rxd_in(struct uart_port *port)
       defined(CONFIG_CPU_SUBTYPE_SH7721)
 #define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
 #elif defined(CONFIG_CPU_SUBTYPE_SH7723)
-#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(16*bps)-1)
+static inline int scbrr_calc(struct uart_port *port, int bps, int clk)
+{
+	if (port->type == PORT_SCIF)
+		return (clk+16*bps)/(32*bps)-1;
+	else
+		return ((clk*2)+16*bps)/(16*bps)-1;
+}
+#define SCBRR_VALUE(bps, clk) scbrr_calc(port, bps, clk)
 #elif defined(__H8300H__) || defined(__H8300S__)
-#define SCBRR_VALUE(bps) (((CONFIG_CPU_CLOCK*1000/32)/bps)-1)
-#elif defined(CONFIG_SUPERH64)
-#define SCBRR_VALUE(bps) ((current_cpu_data.module_clock+16*bps)/(32*bps)-1)
+#define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)
 #else /* Generic SH */
 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)
 #endif