Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Handle ISA devices with no 'regs' property.
  [SPARC64]: Update defconfig.
  [SPARC64]: Fix of_iounmap() region release.
  [SPARC64]: Fix "mem=xxx" handling.

19 files changed, 313 insertions, 155 deletions

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 00a39760877..987ec6782f9 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -153,7 +153,7 @@ void __iomem *of_ioremap(struct resource *res, unsigned long offset,
 }
 EXPORT_SYMBOL(of_ioremap);
 
-void of_iounmap(void __iomem *base, unsigned long size)
+void of_iounmap(struct resource *res, void __iomem *base, unsigned long size)
 {
 	iounmap(base);
 }
diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig
index bda1436aced..5a9e68b13e6 100644
--- a/arch/sparc64/defconfig
+++ b/arch/sparc64/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.19
-# Sat Dec  9 15:41:30 2006
+# Linux kernel version: 2.6.20-rc2
+# Thu Dec 28 15:09:49 2006
 #
 CONFIG_SPARC=y
 CONFIG_SPARC64=y
@@ -334,7 +334,7 @@ CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m
 # CONFIG_BLK_DEV_SX8 is not set
-CONFIG_BLK_DEV_UB=m
+# CONFIG_BLK_DEV_UB is not set
 # CONFIG_BLK_DEV_RAM is not set
 # CONFIG_BLK_DEV_INITRD is not set
 CONFIG_CDROM_PKTCDVD=m
@@ -840,6 +840,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_LM92 is not set
 # CONFIG_SENSORS_MAX1619 is not set
 # CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_PC87427 is not set
 # CONFIG_SENSORS_SIS5595 is not set
 # CONFIG_SENSORS_SMSC47M1 is not set
 # CONFIG_SENSORS_SMSC47M192 is not set
@@ -850,6 +851,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_W83781D is not set
 # CONFIG_SENSORS_W83791D is not set
 # CONFIG_SENSORS_W83792D is not set
+# CONFIG_SENSORS_W83793 is not set
 # CONFIG_SENSORS_W83L785TS is not set
 # CONFIG_SENSORS_W83627HF is not set
 # CONFIG_SENSORS_W83627EHF is not set
@@ -962,7 +964,6 @@ CONFIG_SND_VERBOSE_PROCFS=y
 #
 CONFIG_SND_MPU401_UART=m
 CONFIG_SND_AC97_CODEC=m
-CONFIG_SND_AC97_BUS=m
 CONFIG_SND_DUMMY=m
 CONFIG_SND_VIRMIDI=m
 CONFIG_SND_MTPAV=m
@@ -1045,6 +1046,7 @@ CONFIG_SND_SUN_CS4231=m
 # Open Sound System
 #
 # CONFIG_SOUND_PRIME is not set
+CONFIG_AC97_BUS=m
 
 #
 # HID Devices
@@ -1096,7 +1098,19 @@ CONFIG_USB_UHCI_HCD=m
 #
 # may also be needed; see USB_STORAGE Help for more information
 #
-# CONFIG_USB_STORAGE is not set
+CONFIG_USB_STORAGE=m
+# CONFIG_USB_STORAGE_DEBUG is not set
+# CONFIG_USB_STORAGE_DATAFAB is not set
+# CONFIG_USB_STORAGE_FREECOM is not set
+# CONFIG_USB_STORAGE_ISD200 is not set
+# CONFIG_USB_STORAGE_DPCM is not set
+# CONFIG_USB_STORAGE_USBAT is not set
+# CONFIG_USB_STORAGE_SDDR09 is not set
+# CONFIG_USB_STORAGE_SDDR55 is not set
+# CONFIG_USB_STORAGE_JUMPSHOT is not set
+# CONFIG_USB_STORAGE_ALAUDA is not set
+# CONFIG_USB_STORAGE_ONETOUCH is not set
+# CONFIG_USB_STORAGE_KARMA is not set
 # CONFIG_USB_LIBUSUAL is not set
 
 #
@@ -1222,6 +1236,10 @@ CONFIG_USB_HIDDEV=y
 #
 
 #
+# Virtualization
+#
+
+#
 # Misc Linux/SPARC drivers
 #
 CONFIG_SUN_OPENPROMIO=m
@@ -1397,6 +1415,8 @@ CONFIG_PRINTK_TIME=y
 CONFIG_ENABLE_MUST_CHECK=y
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
 CONFIG_DEBUG_KERNEL=y
 CONFIG_LOG_BUF_SHIFT=18
 CONFIG_DETECT_SOFTLOCKUP=y
@@ -1414,12 +1434,9 @@ CONFIG_SCHEDSTATS=y
 # CONFIG_DEBUG_KOBJECT is not set
 CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
-CONFIG_DEBUG_FS=y
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_LIST is not set
-# CONFIG_UNWIND_INFO is not set
 CONFIG_FORCED_INLINING=y
-# CONFIG_HEADERS_CHECK is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_LKDTM is not set
 # CONFIG_DEBUG_STACK_USAGE is not set
@@ -1489,3 +1506,4 @@ CONFIG_LIBCRC32C=m
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZLIB_DEFLATE=y
 CONFIG_PLIST=y
+CONFIG_IOMAP_COPY=y
diff --git a/arch/sparc64/kernel/isa.c b/arch/sparc64/kernel/isa.c
index ad1c4f55420..98721a8f861 100644
--- a/arch/sparc64/kernel/isa.c
+++ b/arch/sparc64/kernel/isa.c
@@ -22,14 +22,15 @@ static void __init report_dev(struct sparc_isa_device *isa_dev, int child)
 		printk(" [%s", isa_dev->prom_node->name);
 }
 
-static struct linux_prom_registers * __init
-isa_dev_get_resource(struct sparc_isa_device *isa_dev)
+static void __init isa_dev_get_resource(struct sparc_isa_device *isa_dev)
 {
 	struct linux_prom_registers *pregs;
 	unsigned long base, len;
 	int prop_len;
 
 	pregs = of_get_property(isa_dev->prom_node, "reg", &prop_len);
+	if (!pregs)
+		return;
 
 	/* Only the first one is interesting. */
 	len = pregs[0].reg_size;
@@ -44,12 +45,9 @@ isa_dev_get_resource(struct sparc_isa_device *isa_dev)
 
 	request_resource(&isa_dev->bus->parent->io_space,
 			 &isa_dev->resource);
-
-	return pregs;
 }
 
-static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev,
-				   struct linux_prom_registers *pregs)
+static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev)
 {
 	struct of_device *op = of_find_device_by_node(isa_dev->prom_node);
 
@@ -69,7 +67,6 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev)
 
 	printk(" ->");
 	while (dp) {
-		struct linux_prom_registers *regs;
 		struct sparc_isa_device *isa_dev;
 
 		isa_dev = kzalloc(sizeof(*isa_dev), GFP_KERNEL);
@@ -85,8 +82,8 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev)
 		isa_dev->bus = parent_isa_dev->bus;
 		isa_dev->prom_node = dp;
 
-		regs = isa_dev_get_resource(isa_dev);
-		isa_dev_get_irq(isa_dev, regs);
+		isa_dev_get_resource(isa_dev);
+		isa_dev_get_irq(isa_dev);
 
 		report_dev(isa_dev, 1);
 
@@ -99,7 +96,6 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
 	struct device_node *dp = isa_br->prom_node->child;
 
 	while (dp) {
-		struct linux_prom_registers *regs;
 		struct sparc_isa_device *isa_dev;
 
 		isa_dev = kzalloc(sizeof(*isa_dev), GFP_KERNEL);
@@ -137,8 +133,8 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
 		isa_dev->bus = isa_br;
 		isa_dev->prom_node = dp;
 
-		regs = isa_dev_get_resource(isa_dev);
-		isa_dev_get_irq(isa_dev, regs);
+		isa_dev_get_resource(isa_dev);
+		isa_dev_get_irq(isa_dev);
 
 		report_dev(isa_dev, 0);
 
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index cec0eceae55..b0f3e0082a0 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -144,9 +144,12 @@ void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned lo
 }
 EXPORT_SYMBOL(of_ioremap);
 
-void of_iounmap(void __iomem *base, unsigned long size)
+void of_iounmap(struct resource *res, void __iomem *base, unsigned long size)
 {
-	release_region((unsigned long) base, size);
+	if (res->flags & IORESOURCE_MEM)
+		release_mem_region((unsigned long) base, size);
+	else
+		release_region((unsigned long) base, size);
 }
 EXPORT_SYMBOL(of_iounmap);
 
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index a8e8802eed4..054822a3e05 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -872,6 +872,115 @@ static unsigned long __init choose_bootmap_pfn(unsigned long start_pfn,
 	prom_halt();
 }
 
+static void __init trim_pavail(unsigned long *cur_size_p,
+			       unsigned long *end_of_phys_p)
+{
+	unsigned long to_trim = *cur_size_p - cmdline_memory_size;
+	unsigned long avoid_start, avoid_end;
+	int i;
+
+	to_trim = PAGE_ALIGN(to_trim);
+
+	avoid_start = avoid_end = 0;
+#ifdef CONFIG_BLK_DEV_INITRD
+	avoid_start = initrd_start;
+	avoid_end = PAGE_ALIGN(initrd_end);
+#endif
+
+	/* Trim some pavail[] entries in order to satisfy the
+	 * requested "mem=xxx" kernel command line specification.
+	 *
+	 * We must not trim off the kernel image area nor the
+	 * initial ramdisk range (if any).  Also, we must not trim
+	 * any pavail[] entry down to zero in order to preserve
+	 * the invariant that all pavail[] entries have a non-zero
+	 * size which is assumed by all of the code in here.
+	 */
+	for (i = 0; i < pavail_ents; i++) {
+		unsigned long start, end, kern_end;
+		unsigned long trim_low, trim_high, n;
+
+		kern_end = PAGE_ALIGN(kern_base + kern_size);
+
+		trim_low = start = pavail[i].phys_addr;
+		trim_high = end = start + pavail[i].reg_size;
+
+		if (kern_base >= start &&
+		    kern_base < end) {
+			trim_low = kern_base;
+			if (kern_end >= end)
+				continue;
+		}
+		if (kern_end >= start &&
+		    kern_end < end) {
+			trim_high = kern_end;
+		}
+		if (avoid_start &&
+		    avoid_start >= start &&
+		    avoid_start < end) {
+			if (trim_low > avoid_start)
+				trim_low = avoid_start;
+			if (avoid_end >= end)
+				continue;
+		}
+		if (avoid_end &&
+		    avoid_end >= start &&
+		    avoid_end < end) {
+			if (trim_high < avoid_end)
+				trim_high = avoid_end;
+		}
+
+		if (trim_high <= trim_low)
+			continue;
+
+		if (trim_low == start && trim_high == end) {
+			/* Whole chunk is available for trimming.
+			 * Trim all except one page, in order to keep
+			 * entry non-empty.
+			 */
+			n = (end - start) - PAGE_SIZE;
+			if (n > to_trim)
+				n = to_trim;
+
+			if (n) {
+				pavail[i].phys_addr += n;
+				pavail[i].reg_size -= n;
+				to_trim -= n;
+			}
+		} else {
+			n = (trim_low - start);
+			if (n > to_trim)
+				n = to_trim;
+
+			if (n) {
+				pavail[i].phys_addr += n;
+				pavail[i].reg_size -= n;
+				to_trim -= n;
+			}
+			if (to_trim) {
+				n = end - trim_high;
+				if (n > to_trim)
+					n = to_trim;
+				if (n) {
+					pavail[i].reg_size -= n;
+					to_trim -= n;
+				}
+			}
+		}
+
+		if (!to_trim)
+			break;
+	}
+
+	/* Recalculate.  */
+	*cur_size_p = 0UL;
+	for (i = 0; i < pavail_ents; i++) {
+		*end_of_phys_p = pavail[i].phys_addr +
+			pavail[i].reg_size;
+		*cur_size_p += pavail[i].reg_size;
+	}
+}
+
 static unsigned long __init bootmem_init(unsigned long *pages_avail,
 					 unsigned long phys_base)
 {
@@ -889,31 +998,13 @@ static unsigned long __init bootmem_init(unsigned long *pages_avail,
 		end_of_phys_memory = pavail[i].phys_addr +
 			pavail[i].reg_size;
 		bytes_avail += pavail[i].reg_size;
-		if (cmdline_memory_size) {
-			if (bytes_avail > cmdline_memory_size) {
-				unsigned long slack = bytes_avail - cmdline_memory_size;
-
-				bytes_avail -= slack;
-				end_of_phys_memory -= slack;
-
-				pavail[i].reg_size -= slack;
-				if ((long)pavail[i].reg_size <= 0L) {
-					pavail[i].phys_addr = 0xdeadbeefUL;
-					pavail[i].reg_size = 0UL;
-					pavail_ents = i;
-				} else {
-					pavail[i+1].reg_size = 0Ul;
-					pavail[i+1].phys_addr = 0xdeadbeefUL;
-					pavail_ents = i + 1;
-				}
-				break;
-			}
-		}
 	}
 
-	*pages_avail = bytes_avail >> PAGE_SHIFT;
-
-	end_pfn = end_of_phys_memory >> PAGE_SHIFT;
+	/* Determine the location of the initial ramdisk before trying
+	 * to honor the "mem=xxx" command line argument.  We must know
+	 * where the kernel image and the ramdisk image are so that we
+	 * do not trim those two areas from the physical memory map.
+	 */
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	/* Now have to check initial ramdisk, so that bootmap does not overwrite it */
@@ -932,6 +1023,16 @@ static unsigned long __init bootmem_init(unsigned long *pages_avail,
 		}
 	}
 #endif	
+
+	if (cmdline_memory_size &&
+	    bytes_avail > cmdline_memory_size)
+		trim_pavail(&bytes_avail,
+			    &end_of_phys_memory);
+
+	*pages_avail = bytes_avail >> PAGE_SHIFT;
+
+	end_pfn = end_of_phys_memory >> PAGE_SHIFT;
+
 	/* Initialize the boot-time allocator. */
 	max_pfn = max_low_pfn = end_pfn;
 	min_low_pfn = (phys_base >> PAGE_SHIFT);
diff --git a/drivers/input/serio/i8042-sparcio.h b/drivers/input/serio/i8042-sparcio.h
index 54adba2d8ed..d9ca55891cd 100644
--- a/drivers/input/serio/i8042-sparcio.h
+++ b/drivers/input/serio/i8042-sparcio.h
@@ -16,6 +16,7 @@ static int i8042_aux_irq = -1;
 #define I8042_MUX_PHYS_DESC "sparcps2/serio%d"
 
 static void __iomem *kbd_iobase;
+static struct resource *kbd_res;
 
 #define I8042_COMMAND_REG	(kbd_iobase + 0x64UL)
 #define I8042_DATA_REG		(kbd_iobase + 0x60UL)
@@ -60,6 +61,7 @@ static int __devinit sparc_i8042_probe(struct of_device *op, const struct of_dev
 			i8042_kbd_irq = irq;
 			kbd_iobase = of_ioremap(&kbd->resource[0],
 						0, 8, "kbd");
+			kbd_res = &kbd->resource[0];
 		} else if (!strcmp(dp->name, OBP_PS2MS_NAME1) ||
 			   !strcmp(dp->name, OBP_PS2MS_NAME2)) {
 			struct of_device *ms = of_find_device_by_node(dp);
@@ -77,7 +79,7 @@ static int __devinit sparc_i8042_probe(struct of_device *op, const struct of_dev
 
 static int __devexit sparc_i8042_remove(struct of_device *op)
 {
-	of_iounmap(kbd_iobase, 8);
+	of_iounmap(kbd_res, kbd_iobase, 8);
 
 	return 0;
 }
@@ -119,7 +121,7 @@ static int __init i8042_platform_init(void)
 		if (i8042_kbd_irq == -1 ||
 		    i8042_aux_irq == -1) {
 			if (kbd_iobase) {
-				of_iounmap(kbd_iobase, 8);
+				of_iounmap(kbd_res, kbd_iobase, 8);
 				kbd_iobase = (void __iomem *) NULL;
 			}
 			return -ENODEV;
diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c
index 493d5bbb661..145d6236954 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -1037,7 +1037,8 @@ static int __devinit sunsab_init_one(struct uart_sunsab_port *up,
 		err = request_irq(up->port.irq, sunsab_interrupt,
 				  IRQF_SHARED, "sab", up);
 		if (err) {
-			of_iounmap(up->port.membase,
+			of_iounmap(&op->resource[0],
+				   up->port.membase,
 				   sizeof(union sab82532_async_regs));
 			return err;
 		}
@@ -1064,7 +1065,8 @@ static int __devinit sab_probe(struct of_device *op, const struct of_device_id *
 			      sizeof(union sab82532_async_regs),
 			      (inst * 2) + 1);
 	if (err) {
-		of_iounmap(up[0].port.membase,
+		of_iounmap(&op->resource[0],
+			   up[0].port.membase,
 			   sizeof(union sab82532_async_regs));
 		free_irq(up[0].port.irq, &up[0]);
 		return err;
@@ -1082,10 +1084,13 @@ static int __devinit sab_probe(struct of_device *op, const struct of_device_id *
 
 static void __devexit sab_remove_one(struct uart_sunsab_port *up)
 {
+	struct of_device *op = to_of_device(up->port.dev);
+
 	uart_remove_one_port(&sunsab_reg, &up->port);
 	if (!(up->port.line & 1))
 		free_irq(up->port.irq, up);
-	of_iounmap(up->port.membase,
+	of_iounmap(&op->resource[0],
+		   up->port.membase,
 		   sizeof(union sab82532_async_regs));
 }
 
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index 564592b2b2b..3ec3df21816 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -1480,13 +1480,13 @@ static int __devinit su_probe(struct of_device *op, const struct of_device_id *m
 	return 0;
 
 out_unmap:
-	of_iounmap(up->port.membase, up->reg_size);
+	of_iounmap(&op->resource[0], up->port.membase, up->reg_size);
 	return err;
 }
 
-static int __devexit su_remove(struct of_device *dev)
+static int __devexit su_remove(struct of_device *op)
 {
-	struct uart_sunsu_port *up = dev_get_drvdata(&dev->dev);;
+	struct uart_sunsu_port *up = dev_get_drvdata(&op->dev);
 
 	if (up->su_type == SU_PORT_MS ||
 	    up->su_type == SU_PORT_KBD) {
@@ -1499,9 +1499,9 @@ static int __devexit su_remove(struct of_device *dev)
 	}
 
 	if (up->port.membase)
-		of_iounmap(up->port.membase, up->reg_size);
+		of_iounmap(&op->resource[0], up->port.membase, up->reg_size);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	return 0;
 }
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index 75de919a947..244f796dc62 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -1379,13 +1379,15 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m
 	if (!keyboard_mouse) {
 		err = uart_add_one_port(&sunzilog_reg, &up[0].port);
 		if (err) {
-			of_iounmap(rp, sizeof(struct zilog_layout));
+			of_iounmap(&op->resource[0],
+				   rp, sizeof(struct zilog_layout));
 			return err;
 		}
 		err = uart_add_one_port(&sunzilog_reg, &up[1].port);
 		if (err) {
 			uart_remove_one_port(&sunzilog_reg, &up[0].port);
-			of_iounmap(rp, sizeof(struct zilog_layout));
+			of_iounmap(&op->resource[0],
+				   rp, sizeof(struct zilog_layout));
 			return err;
 		}
 	} else {
@@ -1414,18 +1416,18 @@ static void __devexit zs_remove_one(struct uart_sunzilog_port *up)
 		uart_remove_one_port(&sunzilog_reg, &up->port);
 }
 
-static int __devexit zs_remove(struct of_device *dev)
+static int __devexit zs_remove(struct of_device *op)
 {
-	struct uart_sunzilog_port *up = dev_get_drvdata(&dev->dev);
+	struct uart_sunzilog_port *up = dev_get_drvdata(&op->dev);
 	struct zilog_layout __iomem *regs;
 
 	zs_remove_one(&up[0]);
 	zs_remove_one(&up[1]);
 
 	regs = sunzilog_chip_regs[up[0].port.line / 2];
-	of_iounmap(regs, sizeof(struct zilog_layout));
+	of_iounmap(&op->resource[0], regs, sizeof(struct zilog_layout));
 
-	dev_set_drvdata(&dev->dev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	return 0;
 }
diff --git a/drivers/video/bw2.c b/drivers/video/bw2.c
index c66e3d52cbf..9bb6257d691 100644
--- a/drivers/video/bw2.c
+++ b/drivers/video/bw2.c
@@ -320,7 +320,7 @@ static int __devinit bw2_init_one(struct of_device *op)
 	all->info.fbops = &bw2_ops;
 
 	all->info.screen_base =
-		sbus_ioremap(&op->resource[0], 0, all->par.fbsize, "bw2 ram");
+		of_ioremap(&op->resource[0], 0, all->par.fbsize, "bw2 ram");
 	all->info.par = &all->par;
 
 	bw2_blank(0, &all->info);
@@ -329,8 +329,10 @@ static int __devinit bw2_init_one(struct of_device *op)
 
 	err= register_framebuffer(&all->info);
 	if (err < 0) {
-		of_iounmap(all->par.regs, sizeof(struct bw2_regs));
-		of_iounmap(all->info.screen_base, all->par.fbsize);
+		of_iounmap(&op->resource[0],
+			   all->par.regs, sizeof(struct bw2_regs));
+		of_iounmap(&op->resource[0],
+			   all->info.screen_base, all->par.fbsize);
 		kfree(all);
 		return err;
 	}
@@ -351,18 +353,18 @@ static int __devinit bw2_probe(struct of_device *dev, const struct of_device_id
 	return bw2_init_one(op);
 }
 
-static int __devexit bw2_remove(struct of_device *dev)
+static int __devexit bw2_remove(struct of_device *op)
 {
-	struct all_info *all = dev_get_drvdata(&dev->dev);
+	struct all_info *all = dev_get_drvdata(&op->dev);
 
 	unregister_framebuffer(&all->info);
 
-	of_iounmap(all->par.regs, sizeof(struct bw2_regs));
-	of_iounmap(all->info.screen_base, all->par.fbsize);
+	of_iounmap(&op->resource[0], all->par.regs, sizeof(struct bw2_regs));
+	of_iounmap(&op->resource[0], all->info.screen_base, all->par.fbsize);
 
 	kfree(all);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	return 0;
 }
diff --git a/drivers/video/cg14.c b/drivers/video/cg14.c
index 7f926c619b6..ec6a51a5822 100644
--- a/drivers/video/cg14.c
+++ b/drivers/video/cg14.c
@@ -452,16 +452,20 @@ struct all_info {
 	struct cg14_par par;
 };
 
-static void cg14_unmap_regs(struct all_info *all)
+static void cg14_unmap_regs(struct of_device *op, struct all_info *all)
 {
 	if (all->par.regs)
-		of_iounmap(all->par.regs, sizeof(struct cg14_regs));
+		of_iounmap(&op->resource[0],
+			   all->par.regs, sizeof(struct cg14_regs));
 	if (all->par.clut)
-		of_iounmap(all->par.clut, sizeof(struct cg14_clut));
+		of_iounmap(&op->resource[0],
+			   all->par.clut, sizeof(struct cg14_clut));
 	if (all->par.cursor)
-		of_iounmap(all->par.cursor, sizeof(struct cg14_cursor));
+		of_iounmap(&op->resource[0],
+			   all->par.cursor, sizeof(struct cg14_cursor));
 	if (all->info.screen_base)
-		of_iounmap(all->info.screen_base, all->par.fbsize);
+		of_iounmap(&op->resource[1],
+			   all->info.screen_base, all->par.fbsize);
 }
 
 static int __devinit cg14_init_one(struct of_device *op)
@@ -506,7 +510,7 @@ static int __devinit cg14_init_one(struct of_device *op)
 
 	if (!all->par.regs || !all->par.clut || !all->par.cursor ||
 	    !all->info.screen_base)
-		cg14_unmap_regs(all);
+		cg14_unmap_regs(op, all);
 
 	is_8mb = (((op->resource[1].end - op->resource[1].start) + 1) ==
 		  (8 * 1024 * 1024));
@@ -541,7 +545,7 @@ static int __devinit cg14_init_one(struct of_device *op)
 	__cg14_reset(&all->par);
 
 	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
-		cg14_unmap_regs(all);
+		cg14_unmap_regs(op, all);
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -552,7 +556,7 @@ static int __devinit cg14_init_one(struct of_device *op)
 	err = register_framebuffer(&all->info);
 	if (err < 0) {
 		fb_dealloc_cmap(&all->info.cmap);
-		cg14_unmap_regs(all);
+		cg14_unmap_regs(op, all);
 		kfree(all);
 		return err;
 	}
@@ -574,18 +578,18 @@ static int __devinit cg14_probe(struct of_device *dev, const struct of_device_id
 	return cg14_init_one(op);
 }
 
-static int __devexit cg14_remove(struct of_device *dev)
+static int __devexit cg14_remove(struct of_device *op)
 {
-	struct all_info *all = dev_get_drvdata(&dev->dev);
+	struct all_info *all = dev_get_drvdata(&op->dev);
 
 	unregister_framebuffer(&all->info);
 	fb_dealloc_cmap(&all->info.cmap);
 
-	cg14_unmap_regs(all);
+	cg14_unmap_regs(op, all);
 
 	kfree(all);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	return 0;
 }
diff --git a/drivers/video/cg3.c b/drivers/video/cg3.c
index 9c8c753ef45..ada6f7e3a89 100644
--- a/drivers/video/cg3.c
+++ b/drivers/video/cg3.c
@@ -403,8 +403,10 @@ static int __devinit cg3_init_one(struct of_device *op)
 		cg3_do_default_mode(&all->par);
 
 	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
-		of_iounmap(all->par.regs, sizeof(struct cg3_regs));
-		of_iounmap(all->info.screen_base, all->par.fbsize);
+		of_iounmap(&op->resource[0],
+			   all->par.regs, sizeof(struct cg3_regs));
+		of_iounmap(&op->resource[0],
+			   all->info.screen_base, all->par.fbsize);
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -415,8 +417,10 @@ static int __devinit cg3_init_one(struct of_device *op)
 	err = register_framebuffer(&all->info);
 	if (err < 0) {
 		fb_dealloc_cmap(&all->info.cmap);
-		of_iounmap(all->par.regs, sizeof(struct cg3_regs));
-		of_iounmap(all->info.screen_base, all->par.fbsize);
+		of_iounmap(&op->resource[0],
+			   all->par.regs, sizeof(struct cg3_regs));
+		of_iounmap(&op->resource[0],
+			   all->info.screen_base, all->par.fbsize);
 		kfree(all);
 		return err;
 	}
@@ -436,19 +440,19 @@ static int __devinit cg3_probe(struct of_device *dev, const struct of_device_id
 	return cg3_init_one(op);
 }
 
-static int __devexit cg3_remove(struct of_device *dev)
+static int __devexit cg3_remove(struct of_device *op)
 {
-	struct all_info *all = dev_get_drvdata(&dev->dev);
+	struct all_info *all = dev_get_drvdata(&op->dev);
 
 	unregister_framebuffer(&all->info);
 	fb_dealloc_cmap(&all->info.cmap);
 
-	of_iounmap(all->par.regs, sizeof(struct cg3_regs));
-	of_iounmap(all->info.screen_base, all->par.fbsize);
+	of_iounmap(&op->resource[0], all->par.regs, sizeof(struct cg3_regs));
+	of_iounmap(&op->resource[0], all->info.screen_base, all->par.fbsize);
 
 	kfree(all);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	return 0;
 }
diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c
index 64146be2eeb..4dad23a28f5 100644
--- a/drivers/video/cg6.c
+++ b/drivers/video/cg6.c
@@ -658,21 +658,26 @@ struct all_info {
 	struct cg6_par par;
 };
 
-static void cg6_unmap_regs(struct all_info *all)
+static void cg6_unmap_regs(struct of_device *op, struct all_info *all)
 {
 	if (all->par.fbc)
-		of_iounmap(all->par.fbc, 4096);
+		of_iounmap(&op->resource[0], all->par.fbc, 4096);
 	if (all->par.tec)
-		of_iounmap(all->par.tec, sizeof(struct cg6_tec));
+		of_iounmap(&op->resource[0],
+			   all->par.tec, sizeof(struct cg6_tec));
 	if (all->par.thc)
-		of_iounmap(all->par.thc, sizeof(struct cg6_thc));
+		of_iounmap(&op->resource[0],
+			   all->par.thc, sizeof(struct cg6_thc));
 	if (all->par.bt)
-		of_iounmap(all->par.bt, sizeof(struct bt_regs));
+		of_iounmap(&op->resource[0],
+			   all->par.bt, sizeof(struct bt_regs));
 	if (all->par.fhc)
-		of_iounmap(all->par.fhc, sizeof(u32));
+		of_iounmap(&op->resource[0],
+			   all->par.fhc, sizeof(u32));
 
 	if (all->info.screen_base)
-		of_iounmap(all->info.screen_base, all->par.fbsize);
+		of_iounmap(&op->resource[0],
+			   all->info.screen_base, all->par.fbsize);
 }
 
 static int __devinit cg6_init_one(struct of_device *op)
@@ -720,7 +725,7 @@ static int __devinit cg6_init_one(struct of_device *op)
 					    all->par.fbsize, "cgsix ram");
 	if (!all->par.fbc || !all->par.tec || !all->par.thc ||
 	    !all->par.bt || !all->par.fhc || !all->info.screen_base) {
-		cg6_unmap_regs(all);
+		cg6_unmap_regs(op, all);
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -734,7 +739,7 @@ static int __devinit cg6_init_one(struct of_device *op)
 	cg6_blank(0, &all->info);
 
 	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
-		cg6_unmap_regs(all);
+		cg6_unmap_regs(op, all);
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -744,7 +749,7 @@ static int __devinit cg6_init_one(struct of_device *op)
 
 	err = register_framebuffer(&all->info);
 	if (err < 0) {
-		cg6_unmap_regs(all);
+		cg6_unmap_regs(op, all);
 		fb_dealloc_cmap(&all->info.cmap);
 		kfree(all);
 		return err;
@@ -767,18 +772,18 @@ static int __devinit cg6_probe(struct of_device *dev, const struct of_device_id
 	return cg6_init_one(op);
 }
 
-static int __devexit cg6_remove(struct of_device *dev)
+static int __devexit cg6_remove(struct of_device *op)
 {
-	struct all_info *all = dev_get_drvdata(&dev->dev);
+	struct all_info *all = dev_get_drvdata(&op->dev);
 
 	unregister_framebuffer(&all->info);
 	fb_dealloc_cmap(&all->info.cmap);
 
-	cg6_unmap_regs(all);
+	cg6_unmap_regs(op, all);
 
 	kfree(all);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	return 0;
 }
diff --git a/drivers/video/ffb.c b/drivers/video/ffb.c
index 949141bd44d..15854aec318 100644
--- a/drivers/video/ffb.c
+++ b/drivers/video/ffb.c
@@ -910,7 +910,8 @@ static int ffb_init_one(struct of_device *op)
 	all->par.dac = of_ioremap(&op->resource[1], 0,
 				  sizeof(struct ffb_dac), "ffb dac");
 	if (!all->par.dac) {
-		of_iounmap(all->par.fbc, sizeof(struct ffb_fbc));
+		of_iounmap(&op->resource[2],
+			   all->par.fbc, sizeof(struct ffb_fbc));
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -968,8 +969,10 @@ static int ffb_init_one(struct of_device *op)
 
 	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
 		printk(KERN_ERR "ffb: Could not allocate color map.\n");
-		of_iounmap(all->par.fbc, sizeof(struct ffb_fbc));
-		of_iounmap(all->par.dac, sizeof(struct ffb_dac));
+		of_iounmap(&op->resource[2],
+			   all->par.fbc, sizeof(struct ffb_fbc));
+		of_iounmap(&op->resource[1],
+			   all->par.dac, sizeof(struct ffb_dac));
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -980,8 +983,10 @@ static int ffb_init_one(struct of_device *op)
 	if (err < 0) {
 		printk(KERN_ERR "ffb: Could not register framebuffer.\n");
 		fb_dealloc_cmap(&all->info.cmap);
-		of_iounmap(all->par.fbc, sizeof(struct ffb_fbc));
-		of_iounmap(all->par.dac, sizeof(struct ffb_dac));
+		of_iounmap(&op->resource[2],
+			   all->par.fbc, sizeof(struct ffb_fbc));
+		of_iounmap(&op->resource[1],
+			   all->par.dac, sizeof(struct ffb_dac));
 		kfree(all);
 		return err;
 	}
@@ -1003,19 +1008,19 @@ static int __devinit ffb_probe(struct of_device *dev, const struct of_device_id
 	return ffb_init_one(op);
 }
 
-static int __devexit ffb_remove(struct of_device *dev)
+static int __devexit ffb_remove(struct of_device *op)
 {
-	struct all_info *all = dev_get_drvdata(&dev->dev);
+	struct all_info *all = dev_get_drvdata(&op->dev);
 
 	unregister_framebuffer(&all->info);
 	fb_dealloc_cmap(&all->info.cmap);
 
-	of_iounmap(all->par.fbc, sizeof(struct ffb_fbc));
-	of_iounmap(all->par.dac, sizeof(struct ffb_dac));
+	of_iounmap(&op->resource[2], all->par.fbc, sizeof(struct ffb_fbc));
+	of_iounmap(&op->resource[1], all->par.dac, sizeof(struct ffb_dac));
 
 	kfree(all);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	return 0;
 }
diff --git a/drivers/video/leo.c b/drivers/video/leo.c
index f3a24338d9a..a038aa5a9e1 100644
--- a/drivers/video/leo.c
+++ b/drivers/video/leo.c
@@ -530,20 +530,21 @@ struct all_info {
 	struct leo_par par;
 };
 
-static void leo_unmap_regs(struct all_info *all)
+static void leo_unmap_regs(struct of_device *op, struct all_info *all)
 {
 	if (all->par.lc_ss0_usr)
-		of_iounmap(all->par.lc_ss0_usr, 0x1000);
+		of_iounmap(&op->resource[0], all->par.lc_ss0_usr, 0x1000);
 	if (all->par.ld_ss0)
-		of_iounmap(all->par.ld_ss0, 0x1000);
+		of_iounmap(&op->resource[0], all->par.ld_ss0, 0x1000);
 	if (all->par.ld_ss1)
-		of_iounmap(all->par.ld_ss1, 0x1000);
+		of_iounmap(&op->resource[0], all->par.ld_ss1, 0x1000);
 	if (all->par.lx_krn)
-		of_iounmap(all->par.lx_krn, 0x1000);
+		of_iounmap(&op->resource[0], all->par.lx_krn, 0x1000);
 	if (all->par.cursor)
-		of_iounmap(all->par.cursor, sizeof(struct leo_cursor));
+		of_iounmap(&op->resource[0],
+			   all->par.cursor, sizeof(struct leo_cursor));
 	if (all->info.screen_base)
-		of_iounmap(all->info.screen_base, 0x800000);
+		of_iounmap(&op->resource[0], all->info.screen_base, 0x800000);
 }
 
 static int __devinit leo_init_one(struct of_device *op)
@@ -592,7 +593,7 @@ static int __devinit leo_init_one(struct of_device *op)
 	    !all->par.lx_krn ||
 	    !all->par.cursor ||
 	    !all->info.screen_base) {
-		leo_unmap_regs(all);
+		leo_unmap_regs(op, all);
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -607,7 +608,7 @@ static int __devinit leo_init_one(struct of_device *op)
 	leo_blank(0, &all->info);
 
 	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
-		leo_unmap_regs(all);
+		leo_unmap_regs(op, all);
 		kfree(all);
 		return -ENOMEM;;
 	}
@@ -617,7 +618,7 @@ static int __devinit leo_init_one(struct of_device *op)
 	err = register_framebuffer(&all->info);
 	if (err < 0) {
 		fb_dealloc_cmap(&all->info.cmap);
-		leo_unmap_regs(all);
+		leo_unmap_regs(op, all);
 		kfree(all);
 		return err;
 	}
@@ -638,18 +639,18 @@ static int __devinit leo_probe(struct of_device *dev, const struct of_device_id
 	return leo_init_one(op);
 }
 
-static int __devexit leo_remove(struct of_device *dev)
+static int __devexit leo_remove(struct of_device *op)
 {
-	struct all_info *all = dev_get_drvdata(&dev->dev);
+	struct all_info *all = dev_get_drvdata(&op->dev);
 
 	unregister_framebuffer(&all->info);
 	fb_dealloc_cmap(&all->info.cmap);
 
-	leo_unmap_regs(all);
+	leo_unmap_regs(op, all);
 
 	kfree(all);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	return 0;
 }
diff --git a/drivers/video/p9100.c b/drivers/video/p9100.c
index 56ac51d6a7f..637b78bb4bf 100644
--- a/drivers/video/p9100.c
+++ b/drivers/video/p9100.c
@@ -297,7 +297,8 @@ static int __devinit p9100_init_one(struct of_device *op)
 	all->info.screen_base = of_ioremap(&op->resource[2], 0,
 					   all->par.fbsize, "p9100 ram");
 	if (!all->info.screen_base) {
-		of_iounmap(all->par.regs, sizeof(struct p9100_regs));
+		of_iounmap(&op->resource[0],
+			   all->par.regs, sizeof(struct p9100_regs));
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -306,8 +307,10 @@ static int __devinit p9100_init_one(struct of_device *op)
 	p9100_blank(0, &all->info);
 
 	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
-		of_iounmap(all->par.regs, sizeof(struct p9100_regs));
-		of_iounmap(all->info.screen_base, all->par.fbsize);
+		of_iounmap(&op->resource[0],
+			   all->par.regs, sizeof(struct p9100_regs));
+		of_iounmap(&op->resource[2],
+			   all->info.screen_base, all->par.fbsize);
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -317,8 +320,10 @@ static int __devinit p9100_init_one(struct of_device *op)
 	err = register_framebuffer(&all->info);
 	if (err < 0) {
 		fb_dealloc_cmap(&all->info.cmap);
-		of_iounmap(all->par.regs, sizeof(struct p9100_regs));
-		of_iounmap(all->info.screen_base, all->par.fbsize);
+		of_iounmap(&op->resource[0],
+			   all->par.regs, sizeof(struct p9100_regs));
+		of_iounmap(&op->resource[2],
+			   all->info.screen_base, all->par.fbsize);
 		kfree(all);
 		return err;
 	}
@@ -340,19 +345,19 @@ static int __devinit p9100_probe(struct of_device *dev, const struct of_device_i
 	return p9100_init_one(op);
 }
 
-static int __devexit p9100_remove(struct of_device *dev)
+static int __devexit p9100_remove(struct of_device *op)
 {
-	struct all_info *all = dev_get_drvdata(&dev->dev);
+	struct all_info *all = dev_get_drvdata(&op->dev);
 
 	unregister_framebuffer(&all->info);
 	fb_dealloc_cmap(&all->info.cmap);
 
-	of_iounmap(all->par.regs, sizeof(struct p9100_regs));
-	of_iounmap(all->info.screen_base, all->par.fbsize);
+	of_iounmap(&op->resource[0], all->par.regs, sizeof(struct p9100_regs));
+	of_iounmap(&op->resource[2], all->info.screen_base, all->par.fbsize);
 
 	kfree(all);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	return 0;
 }
diff --git a/drivers/video/tcx.c b/drivers/video/tcx.c
index 6990ab11cd0..5a99669232c 100644
--- a/drivers/video/tcx.c
+++ b/drivers/video/tcx.c
@@ -350,18 +350,23 @@ struct all_info {
 	struct tcx_par par;
 };
 
-static void tcx_unmap_regs(struct all_info *all)
+static void tcx_unmap_regs(struct of_device *op, struct all_info *all)
 {
 	if (all->par.tec)
-		of_iounmap(all->par.tec, sizeof(struct tcx_tec));
+		of_iounmap(&op->resource[7],
+			   all->par.tec, sizeof(struct tcx_tec));
 	if (all->par.thc)
-		of_iounmap(all->par.thc, sizeof(struct tcx_thc));
+		of_iounmap(&op->resource[9],
+			   all->par.thc, sizeof(struct tcx_thc));
 	if (all->par.bt)
-		of_iounmap(all->par.bt, sizeof(struct bt_regs));
+		of_iounmap(&op->resource[8],
+			   all->par.bt, sizeof(struct bt_regs));
 	if (all->par.cplane)
-		of_iounmap(all->par.cplane, all->par.fbsize * sizeof(u32));
+		of_iounmap(&op->resource[4],
+			   all->par.cplane, all->par.fbsize * sizeof(u32));
 	if (all->info.screen_base)
-		of_iounmap(all->info.screen_base, all->par.fbsize);
+		of_iounmap(&op->resource[0],
+			   all->info.screen_base, all->par.fbsize);
 }
 
 static int __devinit tcx_init_one(struct of_device *op)
@@ -398,7 +403,7 @@ static int __devinit tcx_init_one(struct of_device *op)
 					   all->par.fbsize, "tcx ram");
 	if (!all->par.tec || !all->par.thc ||
 	    !all->par.bt || !all->info.screen_base) {
-		tcx_unmap_regs(all);
+		tcx_unmap_regs(op, all);
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -409,7 +414,7 @@ static int __devinit tcx_init_one(struct of_device *op)
 					     all->par.fbsize * sizeof(u32),
 					     "tcx cplane");
 		if (!all->par.cplane) {
-			tcx_unmap_regs(all);
+			tcx_unmap_regs(op, all);
 			kfree(all);
 			return -ENOMEM;
 		}
@@ -461,7 +466,7 @@ static int __devinit tcx_init_one(struct of_device *op)
 	tcx_blank(FB_BLANK_UNBLANK, &all->info);
 
 	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
-		tcx_unmap_regs(all);
+		tcx_unmap_regs(op, all);
 		kfree(all);
 		return -ENOMEM;
 	}
@@ -472,7 +477,7 @@ static int __devinit tcx_init_one(struct of_device *op)
 	err = register_framebuffer(&all->info);
 	if (err < 0) {
 		fb_dealloc_cmap(&all->info.cmap);
-		tcx_unmap_regs(all);
+		tcx_unmap_regs(op, all);
 		kfree(all);
 		return err;
 	}
@@ -495,18 +500,18 @@ static int __devinit tcx_probe(struct of_device *dev, const struct of_device_id
 	return tcx_init_one(op);
 }
 
-static int __devexit tcx_remove(struct of_device *dev)
+static int __devexit tcx_remove(struct of_device *op)
 {
-	struct all_info *all = dev_get_drvdata(&dev->dev);
+	struct all_info *all = dev_get_drvdata(&op->dev);
 
 	unregister_framebuffer(&all->info);
 	fb_dealloc_cmap(&all->info.cmap);
 
-	tcx_unmap_regs(all);
+	tcx_unmap_regs(op, all);
 
 	kfree(all);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	return 0;
 }
diff --git a/include/asm-sparc/of_device.h b/include/asm-sparc/of_device.h
index 80ea31f6e17..7cb00c1b09c 100644
--- a/include/asm-sparc/of_device.h
+++ b/include/asm-sparc/of_device.h
@@ -33,7 +33,7 @@ struct of_device
 #define	to_of_device(d) container_of(d, struct of_device, dev)
 
 extern void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name);
-extern void of_iounmap(void __iomem *base, unsigned long size);
+extern void of_iounmap(struct resource *res, void __iomem *base, unsigned long size);
 
 extern struct of_device *of_find_device_by_node(struct device_node *);
 
diff --git a/include/asm-sparc64/of_device.h b/include/asm-sparc64/of_device.h
index a62c7b997d6..60e9173c9ac 100644
--- a/include/asm-sparc64/of_device.h
+++ b/include/asm-sparc64/of_device.h
@@ -34,7 +34,7 @@ struct of_device
 #define	to_of_device(d) container_of(d, struct of_device, dev)
 
 extern void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name);
-extern void of_iounmap(void __iomem *base, unsigned long size);
+extern void of_iounmap(struct resource *res, void __iomem *base, unsigned long size);
 
 extern struct of_device *of_find_device_by_node(struct device_node *);