21 files changed, 210 insertions, 36 deletions

diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index bc82305ebb4c..b28225a7c4f3 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -96,6 +96,17 @@ config MTD_PHYSMAP_GEMINI
 	  platforms, some detection and setting up parallel mode on the
 	  external interface.
 
+config MTD_PHYSMAP_IXP4XX
+	bool "Intel IXP4xx OF-based physical memory map handling"
+	depends on MTD_PHYSMAP_OF
+	depends on ARM
+	select MTD_COMPLEX_MAPPINGS
+	select MTD_CFI_BE_BYTE_SWAP if CPU_BIG_ENDIAN
+	default ARCH_IXP4XX
+	help
+	  This provides some extra DT physmap parsing for the Intel IXP4xx
+	  platforms, some elaborate endianness handling in particular.
+
 config MTD_PHYSMAP_GPIO_ADDR
 	bool "GPIO-assisted Flash Chip Support"
 	depends on MTD_PHYSMAP
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 1146009f41df..c0da86a5d26f 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_MTD_PXA2XX)	+= pxa2xx-flash.o
 physmap-objs-y			+= physmap-core.o
 physmap-objs-$(CONFIG_MTD_PHYSMAP_VERSATILE) += physmap-versatile.o
 physmap-objs-$(CONFIG_MTD_PHYSMAP_GEMINI) += physmap-gemini.o
+physmap-objs-$(CONFIG_MTD_PHYSMAP_IXP4XX) += physmap-ixp4xx.o
 physmap-objs			:= $(physmap-objs-y)
 obj-$(CONFIG_MTD_PHYSMAP)	+= physmap.o
 obj-$(CONFIG_MTD_PISMO)		+= pismo.o
diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c
index 462fadb56bdb..42a95ba40f2c 100644
--- a/drivers/mtd/maps/amd76xrom.c
+++ b/drivers/mtd/maps/amd76xrom.c
@@ -163,7 +163,7 @@ static int amd76xrom_init_one(struct pci_dev *pdev,
 	/* FIXME handle registers 0x80 - 0x8C the bios region locks */
 
 	/* For write accesses caches are useless */
-	window->virt = ioremap_nocache(window->phys, window->size);
+	window->virt = ioremap(window->phys, window->size);
 	if (!window->virt) {
 		printk(KERN_ERR MOD_NAME ": ioremap(%08lx, %08lx) failed\n",
 			window->phys, window->size);
diff --git a/drivers/mtd/maps/ck804xrom.c b/drivers/mtd/maps/ck804xrom.c
index c9b7b4d5a923..460494212f6a 100644
--- a/drivers/mtd/maps/ck804xrom.c
+++ b/drivers/mtd/maps/ck804xrom.c
@@ -191,7 +191,7 @@ static int __init ck804xrom_init_one(struct pci_dev *pdev,
 	/* FIXME handle registers 0x80 - 0x8C the bios region locks */
 
 	/* For write accesses caches are useless */
-	window->virt = ioremap_nocache(window->phys, window->size);
+	window->virt = ioremap(window->phys, window->size);
 	if (!window->virt) {
 		printk(KERN_ERR MOD_NAME ": ioremap(%08lx, %08lx) failed\n",
 			window->phys, window->size);
diff --git a/drivers/mtd/maps/esb2rom.c b/drivers/mtd/maps/esb2rom.c
index 5c27c6994896..85e14150a073 100644
--- a/drivers/mtd/maps/esb2rom.c
+++ b/drivers/mtd/maps/esb2rom.c
@@ -249,7 +249,7 @@ static int __init esb2rom_init_one(struct pci_dev *pdev,
 	}
 
 	/* Map the firmware hub into my address space. */
-	window->virt = ioremap_nocache(window->phys, window->size);
+	window->virt = ioremap(window->phys, window->size);
 	if (!window->virt) {
 		printk(KERN_ERR MOD_NAME ": ioremap(%08lx, %08lx) failed\n",
 			window->phys, window->size);
diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c
index 6b989f391baa..fda72c5fd8f9 100644
--- a/drivers/mtd/maps/ichxrom.c
+++ b/drivers/mtd/maps/ichxrom.c
@@ -184,7 +184,7 @@ static int __init ichxrom_init_one(struct pci_dev *pdev,
 	}
 
 	/* Map the firmware hub into my address space. */
-	window->virt = ioremap_nocache(window->phys, window->size);
+	window->virt = ioremap(window->phys, window->size);
 	if (!window->virt) {
 		printk(KERN_ERR MOD_NAME ": ioremap(%08lx, %08lx) failed\n",
 			window->phys, window->size);
diff --git a/drivers/mtd/maps/intel_vr_nor.c b/drivers/mtd/maps/intel_vr_nor.c
index 69503aef981e..d67b845b0e89 100644
--- a/drivers/mtd/maps/intel_vr_nor.c
+++ b/drivers/mtd/maps/intel_vr_nor.c
@@ -133,7 +133,7 @@ static int vr_nor_init_maps(struct vr_nor_mtd *p)
 	if (win_len < (CS0_START + CS0_SIZE))
 		return -ENXIO;
 
-	p->csr_base = ioremap_nocache(csr_phys, csr_len);
+	p->csr_base = ioremap(csr_phys, csr_len);
 	if (!p->csr_base)
 		return -ENOMEM;
 
@@ -152,7 +152,7 @@ static int vr_nor_init_maps(struct vr_nor_mtd *p)
 	p->map.bankwidth = (exp_timing_cs0 & TIMING_BYTE_EN) ? 1 : 2;
 	p->map.phys = win_phys + CS0_START;
 	p->map.size = CS0_SIZE;
-	p->map.virt = ioremap_nocache(p->map.phys, p->map.size);
+	p->map.virt = ioremap(p->map.phys, p->map.size);
 	if (!p->map.virt) {
 		err = -ENOMEM;
 		goto release;
diff --git a/drivers/mtd/maps/l440gx.c b/drivers/mtd/maps/l440gx.c
index 876f12f40018..832b880d1aaf 100644
--- a/drivers/mtd/maps/l440gx.c
+++ b/drivers/mtd/maps/l440gx.c
@@ -78,7 +78,7 @@ static int __init init_l440gx(void)
 		return -ENODEV;
 	}
 
-	l440gx_map.virt = ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE);
+	l440gx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
 
 	if (!l440gx_map.virt) {
 		printk(KERN_WARNING "Failed to ioremap L440GX flash region\n");
@@ -86,7 +86,7 @@ static int __init init_l440gx(void)
 		return -ENOMEM;
 	}
 	simple_map_init(&l440gx_map);
-	printk(KERN_NOTICE "window_addr = 0x%08lx\n", (unsigned long)l440gx_map.virt);
+	pr_debug("window_addr = %p\n", l440gx_map.virt);
 
 	/* Setup the pm iobase resource
 	 * This code should move into some kind of generic bridge
diff --git a/drivers/mtd/maps/netsc520.c b/drivers/mtd/maps/netsc520.c
index abc52b70bb00..0bb651624f05 100644
--- a/drivers/mtd/maps/netsc520.c
+++ b/drivers/mtd/maps/netsc520.c
@@ -82,10 +82,10 @@ static int __init init_netsc520(void)
 	printk(KERN_NOTICE "NetSc520 flash device: 0x%Lx at 0x%Lx\n",
 			(unsigned long long)netsc520_map.size,
 			(unsigned long long)netsc520_map.phys);
-	netsc520_map.virt = ioremap_nocache(netsc520_map.phys, netsc520_map.size);
+	netsc520_map.virt = ioremap(netsc520_map.phys, netsc520_map.size);
 
 	if (!netsc520_map.virt) {
-		printk("Failed to ioremap_nocache\n");
+		printk("Failed to ioremap\n");
 		return -EIO;
 	}
 
diff --git a/drivers/mtd/maps/nettel.c b/drivers/mtd/maps/nettel.c
index 50046d497398..7d349874ffeb 100644
--- a/drivers/mtd/maps/nettel.c
+++ b/drivers/mtd/maps/nettel.c
@@ -176,7 +176,7 @@ static int __init nettel_init(void)
 #endif
 	int rc = 0;
 
-	nettel_mmcrp = (void *) ioremap_nocache(0xfffef000, 4096);
+	nettel_mmcrp = (void *) ioremap(0xfffef000, 4096);
 	if (nettel_mmcrp == NULL) {
 		printk("SNAPGEAR: failed to disable MMCR cache??\n");
 		return(-EIO);
@@ -217,7 +217,7 @@ static int __init nettel_init(void)
 	__asm__ ("wbinvd");
 
 	nettel_amd_map.phys = amdaddr;
-	nettel_amd_map.virt = ioremap_nocache(amdaddr, maxsize);
+	nettel_amd_map.virt = ioremap(amdaddr, maxsize);
 	if (!nettel_amd_map.virt) {
 		printk("SNAPGEAR: failed to ioremap() BOOTCS\n");
 		iounmap(nettel_mmcrp);
@@ -303,7 +303,7 @@ static int __init nettel_init(void)
 	/* Probe for the size of the first Intel flash */
 	nettel_intel_map.size = maxsize;
 	nettel_intel_map.phys = intel0addr;
-	nettel_intel_map.virt = ioremap_nocache(intel0addr, maxsize);
+	nettel_intel_map.virt = ioremap(intel0addr, maxsize);
 	if (!nettel_intel_map.virt) {
 		printk("SNAPGEAR: failed to ioremap() ROMCS1\n");
 		rc = -EIO;
@@ -337,7 +337,7 @@ static int __init nettel_init(void)
 	iounmap(nettel_intel_map.virt);
 
 	nettel_intel_map.size = maxsize;
-	nettel_intel_map.virt = ioremap_nocache(intel0addr, maxsize);
+	nettel_intel_map.virt = ioremap(intel0addr, maxsize);
 	if (!nettel_intel_map.virt) {
 		printk("SNAPGEAR: failed to ioremap() ROMCS1/2\n");
 		rc = -EIO;
diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c
index 9a49f8a06fb8..377ef0fc4e3e 100644
--- a/drivers/mtd/maps/pci.c
+++ b/drivers/mtd/maps/pci.c
@@ -94,7 +94,7 @@ intel_iq80310_init(struct pci_dev *dev, struct map_pci_info *map)
 	map->map.write = mtd_pci_write8,
 
 	map->map.size     = 0x00800000;
-	map->base         = ioremap_nocache(pci_resource_start(dev, 0),
+	map->base         = ioremap(pci_resource_start(dev, 0),
 					    pci_resource_len(dev, 0));
 
 	if (!map->base)
@@ -188,7 +188,7 @@ intel_dc21285_init(struct pci_dev *dev, struct map_pci_info *map)
 	map->map.read = mtd_pci_read32,
 	map->map.write = mtd_pci_write32,
 	map->map.size     = len;
-	map->base         = ioremap_nocache(base, len);
+	map->base         = ioremap(base, len);
 
 	if (!map->base)
 		return -ENOMEM;
diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c
index 70bb403f69f7..2ac79e1cedd9 100644
--- a/drivers/mtd/maps/pcmciamtd.c
+++ b/drivers/mtd/maps/pcmciamtd.c
@@ -294,16 +294,15 @@ static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *f
 }
 
 
-static DEFINE_SPINLOCK(pcmcia_vpp_lock);
+static DEFINE_MUTEX(pcmcia_vpp_lock);
 static int pcmcia_vpp_refcnt;
 static void pcmciamtd_set_vpp(struct map_info *map, int on)
 {
 	struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 	struct pcmcia_device *link = dev->p_dev;
-	unsigned long flags;
 
 	pr_debug("dev = %p on = %d vpp = %d\n\n", dev, on, dev->vpp);
-	spin_lock_irqsave(&pcmcia_vpp_lock, flags);
+	mutex_lock(&pcmcia_vpp_lock);
 	if (on) {
 		if (++pcmcia_vpp_refcnt == 1)   /* first nested 'on' */
 			pcmcia_fixup_vpp(link, dev->vpp);
@@ -311,7 +310,7 @@ static void pcmciamtd_set_vpp(struct map_info *map, int on)
 		if (--pcmcia_vpp_refcnt == 0)   /* last nested 'off' */
 			pcmcia_fixup_vpp(link, 0);
 	}
-	spin_unlock_irqrestore(&pcmcia_vpp_lock, flags);
+	mutex_unlock(&pcmcia_vpp_lock);
 }
 
 
diff --git a/drivers/mtd/maps/physmap-core.c b/drivers/mtd/maps/physmap-core.c
index 21b556afc305..8f7f966fa9a7 100644
--- a/drivers/mtd/maps/physmap-core.c
+++ b/drivers/mtd/maps/physmap-core.c
@@ -38,9 +38,11 @@
 #include <linux/mtd/cfi_endian.h>
 #include <linux/io.h>
 #include <linux/of_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/gpio/consumer.h>
 
 #include "physmap-gemini.h"
+#include "physmap-ixp4xx.h"
 #include "physmap-versatile.h"
 
 struct physmap_flash_info {
@@ -63,16 +65,16 @@ static int physmap_flash_remove(struct platform_device *dev)
 {
 	struct physmap_flash_info *info;
 	struct physmap_flash_data *physmap_data;
-	int i, err;
+	int i, err = 0;
 
 	info = platform_get_drvdata(dev);
 	if (!info)
-		return 0;
+		goto out;
 
 	if (info->cmtd) {
 		err = mtd_device_unregister(info->cmtd);
 		if (err)
-			return err;
+			goto out;
 
 		if (info->cmtd != info->mtds[0])
 			mtd_concat_destroy(info->cmtd);
@@ -87,7 +89,10 @@ static int physmap_flash_remove(struct platform_device *dev)
 	if (physmap_data && physmap_data->exit)
 		physmap_data->exit(dev);
 
-	return 0;
+out:
+	pm_runtime_put(&dev->dev);
+	pm_runtime_disable(&dev->dev);
+	return err;
 }
 
 static void physmap_set_vpp(struct map_info *map, int state)
@@ -370,6 +375,10 @@ static int physmap_flash_of_init(struct platform_device *dev)
 		if (err)
 			return err;
 
+		err = of_flash_probe_ixp4xx(dev, dp, &info->maps[i]);
+		if (err)
+			return err;
+
 		err = of_flash_probe_versatile(dev, dp, &info->maps[i]);
 		if (err)
 			return err;
@@ -479,13 +488,19 @@ static int physmap_flash_probe(struct platform_device *dev)
 		return -EINVAL;
 	}
 
+	pm_runtime_enable(&dev->dev);
+	pm_runtime_get_sync(&dev->dev);
+
 	if (dev->dev.of_node)
 		err = physmap_flash_of_init(dev);
 	else
 		err = physmap_flash_pdata_init(dev);
 
-	if (err)
+	if (err) {
+		pm_runtime_put(&dev->dev);
+		pm_runtime_disable(&dev->dev);
 		return err;
+	}
 
 	for (i = 0; i < info->nmaps; i++) {
 		struct resource *res;
diff --git a/drivers/mtd/maps/physmap-ixp4xx.c b/drivers/mtd/maps/physmap-ixp4xx.c
new file mode 100644
index 000000000000..6a054229a8a0
--- /dev/null
+++ b/drivers/mtd/maps/physmap-ixp4xx.c
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Intel IXP4xx OF physmap add-on
+ * Copyright (C) 2019 Linus Walleij <linus.walleij@linaro.org>
+ *
+ * Based on the ixp4xx.c map driver, originally written by:
+ * Intel Corporation
+ * Deepak Saxena <dsaxena@mvista.com>
+ * Copyright (C) 2002 Intel Corporation
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ */
+#include <linux/export.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/xip.h>
+#include "physmap-ixp4xx.h"
+
+/*
+ * Read/write a 16 bit word from flash address 'addr'.
+ *
+ * When the cpu is in little-endian mode it swizzles the address lines
+ * ('address coherency') so we need to undo the swizzling to ensure commands
+ * and the like end up on the correct flash address.
+ *
+ * To further complicate matters, due to the way the expansion bus controller
+ * handles 32 bit reads, the byte stream ABCD is stored on the flash as:
+ *     D15    D0
+ *     +---+---+
+ *     | A | B | 0
+ *     +---+---+
+ *     | C | D | 2
+ *     +---+---+
+ * This means that on LE systems each 16 bit word must be swapped. Note that
+ * this requires CONFIG_MTD_CFI_BE_BYTE_SWAP to be enabled to 'unswap' the CFI
+ * data and other flash commands which are always in D7-D0.
+ */
+#ifndef CONFIG_CPU_BIG_ENDIAN
+
+static inline u16 flash_read16(void __iomem *addr)
+{
+	return be16_to_cpu(__raw_readw((void __iomem *)((unsigned long)addr ^ 0x2)));
+}
+
+static inline void flash_write16(u16 d, void __iomem *addr)
+{
+	__raw_writew(cpu_to_be16(d), (void __iomem *)((unsigned long)addr ^ 0x2));
+}
+
+#define	BYTE0(h)	((h) & 0xFF)
+#define	BYTE1(h)	(((h) >> 8) & 0xFF)
+
+#else
+
+static inline u16 flash_read16(const void __iomem *addr)
+{
+	return __raw_readw(addr);
+}
+
+static inline void flash_write16(u16 d, void __iomem *addr)
+{
+	__raw_writew(d, addr);
+}
+
+#define	BYTE0(h)	(((h) >> 8) & 0xFF)
+#define	BYTE1(h)	((h) & 0xFF)
+#endif
+
+static map_word ixp4xx_read16(struct map_info *map, unsigned long ofs)
+{
+	map_word val;
+
+	val.x[0] = flash_read16(map->virt + ofs);
+	return val;
+}
+
+/*
+ * The IXP4xx expansion bus only allows 16-bit wide acceses
+ * when attached to a 16-bit wide device (such as the 28F128J3A),
+ * so we can't just memcpy_fromio().
+ */
+static void ixp4xx_copy_from(struct map_info *map, void *to,
+			     unsigned long from, ssize_t len)
+{
+	u8 *dest = (u8 *) to;
+	void __iomem *src = map->virt + from;
+
+	if (len <= 0)
+		return;
+
+	if (from & 1) {
+		*dest++ = BYTE1(flash_read16(src-1));
+		src++;
+		--len;
+	}
+
+	while (len >= 2) {
+		u16 data = flash_read16(src);
+		*dest++ = BYTE0(data);
+		*dest++ = BYTE1(data);
+		src += 2;
+		len -= 2;
+	}
+
+	if (len > 0)
+		*dest++ = BYTE0(flash_read16(src));
+}
+
+static void ixp4xx_write16(struct map_info *map, map_word d, unsigned long adr)
+{
+	flash_write16(d.x[0], map->virt + adr);
+}
+
+int of_flash_probe_ixp4xx(struct platform_device *pdev,
+			  struct device_node *np,
+			  struct map_info *map)
+{
+	struct device *dev = &pdev->dev;
+
+	/* Multiplatform guard */
+	if (!of_device_is_compatible(np, "intel,ixp4xx-flash"))
+		return 0;
+
+	map->read = ixp4xx_read16;
+	map->write = ixp4xx_write16;
+	map->copy_from = ixp4xx_copy_from;
+	map->copy_to = NULL;
+
+	dev_info(dev, "initialized Intel IXP4xx-specific physmap control\n");
+
+	return 0;
+}
diff --git a/drivers/mtd/maps/physmap-ixp4xx.h b/drivers/mtd/maps/physmap-ixp4xx.h
new file mode 100644
index 000000000000..b0fc49b7f3ed
--- /dev/null
+++ b/drivers/mtd/maps/physmap-ixp4xx.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/of.h>
+#include <linux/mtd/map.h>
+
+#ifdef CONFIG_MTD_PHYSMAP_IXP4XX
+int of_flash_probe_ixp4xx(struct platform_device *pdev,
+			  struct device_node *np,
+			  struct map_info *map);
+#else
+static inline
+int of_flash_probe_ixp4xx(struct platform_device *pdev,
+			  struct device_node *np,
+			  struct map_info *map)
+{
+	return 0;
+}
+#endif
diff --git a/drivers/mtd/maps/pismo.c b/drivers/mtd/maps/pismo.c
index 788d4996e2c1..946ba80f9758 100644
--- a/drivers/mtd/maps/pismo.c
+++ b/drivers/mtd/maps/pismo.c
@@ -211,13 +211,12 @@ static int pismo_remove(struct i2c_client *client)
 static int pismo_probe(struct i2c_client *client,
 		       const struct i2c_device_id *id)
 {
-	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
 	struct pismo_pdata *pdata = client->dev.platform_data;
 	struct pismo_eeprom eeprom;
 	struct pismo_data *pismo;
 	int ret, i;
 
-	if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
 		dev_err(&client->dev, "functionality mismatch\n");
 		return -EIO;
 	}
diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
index cebb346877a9..7d96758a8f04 100644
--- a/drivers/mtd/maps/pxa2xx-flash.c
+++ b/drivers/mtd/maps/pxa2xx-flash.c
@@ -68,8 +68,7 @@ static int pxa2xx_flash_probe(struct platform_device *pdev)
 		       info->map.name);
 		return -ENOMEM;
 	}
-	info->map.cached =
-		ioremap_cached(info->map.phys, info->map.size);
+	info->map.cached = ioremap_cache(info->map.phys, info->map.size);
 	if (!info->map.cached)
 		printk(KERN_WARNING "Failed to ioremap cached %s\n",
 		       info->map.name);
diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index 895510d40ce4..47602af4ee34 100644
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -81,6 +81,7 @@ static int sa1100_probe_subdev(struct sa_subdev_info *subdev, struct resource *r
 	default:
 		printk(KERN_WARNING "SA1100 flash: unknown base address "
 		       "0x%08lx, assuming CS0\n", phys);
+		/* Fall through */
 
 	case SA1100_CS0_PHYS:
 		subdev->map.bankwidth = (MSC0 & MSC_RBW) ? 2 : 4;
diff --git a/drivers/mtd/maps/sc520cdp.c b/drivers/mtd/maps/sc520cdp.c
index 03af2df90d47..9902b37e18b4 100644
--- a/drivers/mtd/maps/sc520cdp.c
+++ b/drivers/mtd/maps/sc520cdp.c
@@ -174,8 +174,8 @@ static void sc520cdp_setup_par(void)
 	int i, j;
 
 	/* map in SC520's MMCR area */
-	mmcr = ioremap_nocache(SC520_MMCR_BASE, SC520_MMCR_EXTENT);
-	if(!mmcr) { /* ioremap_nocache failed: skip the PAR reprogramming */
+	mmcr = ioremap(SC520_MMCR_BASE, SC520_MMCR_EXTENT);
+	if(!mmcr) { /* ioremap failed: skip the PAR reprogramming */
 		/* force physical address fields to BIOS defaults: */
 		for(i = 0; i < NUM_FLASH_BANKS; i++)
 			sc520cdp_map[i].phys = par_table[i].default_address;
@@ -225,10 +225,10 @@ static int __init init_sc520cdp(void)
 			(unsigned long long)sc520cdp_map[i].size,
 			(unsigned long long)sc520cdp_map[i].phys);
 
-		sc520cdp_map[i].virt = ioremap_nocache(sc520cdp_map[i].phys, sc520cdp_map[i].size);
+		sc520cdp_map[i].virt = ioremap(sc520cdp_map[i].phys, sc520cdp_map[i].size);
 
 		if (!sc520cdp_map[i].virt) {
-			printk("Failed to ioremap_nocache\n");
+			printk("Failed to ioremap\n");
 			for (j = 0; j < i; j++) {
 				if (mymtd[j]) {
 					map_destroy(mymtd[j]);
diff --git a/drivers/mtd/maps/scb2_flash.c b/drivers/mtd/maps/scb2_flash.c
index 2afb253bf456..57303f904bc1 100644
--- a/drivers/mtd/maps/scb2_flash.c
+++ b/drivers/mtd/maps/scb2_flash.c
@@ -152,7 +152,7 @@ static int scb2_flash_probe(struct pci_dev *dev,
 	}
 
 	/* remap the IO window (w/o caching) */
-	scb2_ioaddr = ioremap_nocache(SCB2_ADDR, SCB2_WINDOW);
+	scb2_ioaddr = ioremap(SCB2_ADDR, SCB2_WINDOW);
 	if (!scb2_ioaddr) {
 		printk(KERN_ERR MODNAME ": Failed to ioremap window!\n");
 		if (!region_fail)
diff --git a/drivers/mtd/maps/ts5500_flash.c b/drivers/mtd/maps/ts5500_flash.c
index 6cfc8783c0e5..70d6e865f555 100644
--- a/drivers/mtd/maps/ts5500_flash.c
+++ b/drivers/mtd/maps/ts5500_flash.c
@@ -56,10 +56,10 @@ static int __init init_ts5500_map(void)
 {
 	int rc = 0;
 
-	ts5500_map.virt = ioremap_nocache(ts5500_map.phys, ts5500_map.size);
+	ts5500_map.virt = ioremap(ts5500_map.phys, ts5500_map.size);
 
 	if (!ts5500_map.virt) {
-		printk(KERN_ERR "Failed to ioremap_nocache\n");
+		printk(KERN_ERR "Failed to ioremap\n");
 		rc = -EIO;
 		goto err2;
 	}