Merge commit 'v2.6.34-rc1' into for-2.6.35

5 files changed, 337 insertions, 371 deletions

diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 4c364d44ad5..aa2807d0ce7 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -251,12 +251,6 @@ config MTD_NETtel
 	help
 	  Support for flash chips on NETtel/SecureEdge/SnapGear boards.
 
-config MTD_ALCHEMY
-	tristate "AMD Alchemy Pb1xxx/Db1xxx/RDK MTD support"
-	depends on SOC_AU1X00 && MTD_PARTITIONS && MTD_CFI
-	help
-	  Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards
-
 config MTD_DILNETPC
 	tristate "CFI Flash device mapped on DIL/Net PC"
 	depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN
@@ -428,15 +422,6 @@ config MTD_H720X
 	  This enables access to the flash chips on the Hynix evaluation boards.
 	  If you have such a board, say 'Y'.
 
-config MTD_OMAP_NOR
-	tristate "TI OMAP board mappings"
-	depends on MTD_CFI && ARCH_OMAP
-	help
-	  This enables access to the NOR flash chips on TI OMAP-based
-	  boards defining flash platform devices and flash platform data.
-	  These boards include the Innovator, H2, H3, OSK, Perseus2, and
-	  more.  If you have such a board, say 'Y'.
-
 # This needs CFI or JEDEC, depending on the cards found.
 config MTD_PCI
 	tristate "PCI MTD driver"
@@ -549,4 +534,21 @@ config MTD_VMU
 	  To build this as a module select M here, the module will be called
 	  vmu-flash.
 
+config MTD_PISMO
+	tristate "MTD discovery driver for PISMO modules"
+	depends on I2C
+	depends on ARCH_VERSATILE
+	help
+	  This driver allows for discovery of PISMO modules - see
+	  <http://www.pismoworld.org/>.  These are small modules containing
+	  up to five memory devices (eg, SRAM, flash, DOC) described by an
+	  I2C EEPROM.
+
+	  This driver does not create any MTD maps itself; instead it
+	  creates MTD physmap and MTD SRAM platform devices.  If you
+	  enable this option, you should consider enabling MTD_PHYSMAP
+	  and/or MTD_PLATRAM according to the devices on your module.
+
+	  When built as a module, it will be called pismo.ko
+
 endmenu
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index ce315214ff2..bb035cd54c7 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -40,7 +40,6 @@ obj-$(CONFIG_MTD_SCx200_DOCFLASH)+= scx200_docflash.o
 obj-$(CONFIG_MTD_DBOX2)		+= dbox2-flash.o
 obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o
 obj-$(CONFIG_MTD_PCI)		+= pci.o
-obj-$(CONFIG_MTD_ALCHEMY)       += alchemy-flash.o
 obj-$(CONFIG_MTD_AUTCPU12)	+= autcpu12-nvram.o
 obj-$(CONFIG_MTD_EDB7312)	+= edb7312.o
 obj-$(CONFIG_MTD_IMPA7)		+= impa7.o
@@ -55,7 +54,6 @@ obj-$(CONFIG_MTD_IXP2000)	+= ixp2000.o
 obj-$(CONFIG_MTD_WRSBC8260)	+= wr_sbc82xx_flash.o
 obj-$(CONFIG_MTD_DMV182)	+= dmv182.o
 obj-$(CONFIG_MTD_PLATRAM)	+= plat-ram.o
-obj-$(CONFIG_MTD_OMAP_NOR)	+= omap_nor.o
 obj-$(CONFIG_MTD_INTEL_VR_NOR)	+= intel_vr_nor.o
 obj-$(CONFIG_MTD_BFIN_ASYNC)	+= bfin-async-flash.o
 obj-$(CONFIG_MTD_RBTX4939)	+= rbtx4939-flash.o
diff --git a/drivers/mtd/maps/alchemy-flash.c b/drivers/mtd/maps/alchemy-flash.c
deleted file mode 100644
index 845ad4f2a54..00000000000
--- a/drivers/mtd/maps/alchemy-flash.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Flash memory access on AMD Alchemy evaluation boards
- *
- * (C) 2003, 2004 Pete Popov <ppopov@embeddedalley.com>
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-
-#ifdef CONFIG_MIPS_PB1000
-#define BOARD_MAP_NAME "Pb1000 Flash"
-#define BOARD_FLASH_SIZE 0x00800000 /* 8MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_PB1500
-#define BOARD_MAP_NAME "Pb1500 Flash"
-#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_PB1100
-#define BOARD_MAP_NAME "Pb1100 Flash"
-#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_PB1550
-#define BOARD_MAP_NAME "Pb1550 Flash"
-#define BOARD_FLASH_SIZE 0x08000000 /* 128MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_PB1200
-#define BOARD_MAP_NAME "Pb1200 Flash"
-#define BOARD_FLASH_SIZE 0x08000000 /* 128MB */
-#define BOARD_FLASH_WIDTH 2 /* 16-bits */
-#endif
-
-#ifdef CONFIG_MIPS_DB1000
-#define BOARD_MAP_NAME "Db1000 Flash"
-#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_DB1500
-#define BOARD_MAP_NAME "Db1500 Flash"
-#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_DB1100
-#define BOARD_MAP_NAME "Db1100 Flash"
-#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_DB1550
-#define BOARD_MAP_NAME "Db1550 Flash"
-#define BOARD_FLASH_SIZE 0x08000000 /* 128MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_DB1200
-#define BOARD_MAP_NAME "Db1200 Flash"
-#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
-#define BOARD_FLASH_WIDTH 2 /* 16-bits */
-#endif
-
-#ifdef CONFIG_MIPS_BOSPORUS
-#define BOARD_MAP_NAME "Bosporus Flash"
-#define BOARD_FLASH_SIZE 0x01000000 /* 16MB */
-#define BOARD_FLASH_WIDTH 2 /* 16-bits */
-#endif
-
-#ifdef CONFIG_MIPS_MIRAGE
-#define BOARD_MAP_NAME "Mirage Flash"
-#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#define USE_LOCAL_ACCESSORS /* why? */
-#endif
-
-static struct map_info alchemy_map = {
-	.name =	BOARD_MAP_NAME,
-};
-
-static struct mtd_partition alchemy_partitions[] = {
-        {
-                .name = "User FS",
-                .size = BOARD_FLASH_SIZE - 0x00400000,
-                .offset = 0x0000000
-        },{
-                .name = "YAMON",
-                .size = 0x0100000,
-		.offset = MTDPART_OFS_APPEND,
-                .mask_flags = MTD_WRITEABLE
-        },{
-                .name = "raw kernel",
-		.size = (0x300000 - 0x40000), /* last 256KB is yamon env */
-		.offset = MTDPART_OFS_APPEND,
-        }
-};
-
-static struct mtd_info *mymtd;
-
-static int __init alchemy_mtd_init(void)
-{
-	struct mtd_partition *parts;
-	int nb_parts = 0;
-	unsigned long window_addr;
-	unsigned long window_size;
-
-	/* Default flash buswidth */
-	alchemy_map.bankwidth = BOARD_FLASH_WIDTH;
-
-	window_addr = 0x20000000 - BOARD_FLASH_SIZE;
-	window_size = BOARD_FLASH_SIZE;
-
-	/*
-	 * Static partition definition selection
-	 */
-	parts = alchemy_partitions;
-	nb_parts = ARRAY_SIZE(alchemy_partitions);
-	alchemy_map.size = window_size;
-
-	/*
-	 * Now let's probe for the actual flash.  Do it here since
-	 * specific machine settings might have been set above.
-	 */
-	printk(KERN_NOTICE BOARD_MAP_NAME ": probing %d-bit flash bus\n",
-			alchemy_map.bankwidth*8);
-	alchemy_map.virt = ioremap(window_addr, window_size);
-	mymtd = do_map_probe("cfi_probe", &alchemy_map);
-	if (!mymtd) {
-		iounmap(alchemy_map.virt);
-		return -ENXIO;
-	}
-	mymtd->owner = THIS_MODULE;
-
-	add_mtd_partitions(mymtd, parts, nb_parts);
-	return 0;
-}
-
-static void __exit alchemy_mtd_cleanup(void)
-{
-	if (mymtd) {
-		del_mtd_partitions(mymtd);
-		map_destroy(mymtd);
-		iounmap(alchemy_map.virt);
-	}
-}
-
-module_init(alchemy_mtd_init);
-module_exit(alchemy_mtd_cleanup);
-
-MODULE_AUTHOR("Embedded Alley Solutions, Inc");
-MODULE_DESCRIPTION(BOARD_MAP_NAME " MTD driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/mtd/maps/omap_nor.c b/drivers/mtd/maps/omap_nor.c
index ead0b2fab67..e69de29bb2d 100644
--- a/drivers/mtd/maps/omap_nor.c
+++ b/drivers/mtd/maps/omap_nor.c
@@ -1,188 +0,0 @@
-/*
- * Flash memory support for various TI OMAP boards
- *
- * Copyright (C) 2001-2002 MontaVista Software Inc.
- * Copyright (C) 2003-2004 Texas Instruments
- * Copyright (C) 2004 Nokia Corporation
- *
- *	Assembled using driver code copyright the companies above
- *	and written by David Brownell, Jian Zhang <jzhang@ti.com>,
- * 	Tony Lindgren <tony@atomide.com> and others.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the  GNU General Public License along
- * with this program; if not, write  to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/platform_device.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-#include <mach/hardware.h>
-#include <asm/mach/flash.h>
-#include <plat/tc.h>
-
-#ifdef CONFIG_MTD_PARTITIONS
-static const char *part_probes[] = { /* "RedBoot", */ "cmdlinepart", NULL };
-#endif
-
-struct omapflash_info {
-	struct mtd_partition	*parts;
-	struct mtd_info		*mtd;
-	struct map_info		map;
-};
-
-static void omap_set_vpp(struct map_info *map, int enable)
-{
-	static int	count;
-	u32 l;
-
-	if (cpu_class_is_omap1()) {
-		if (enable) {
-			if (count++ == 0) {
-				l = omap_readl(EMIFS_CONFIG);
-				l |= OMAP_EMIFS_CONFIG_WP;
-				omap_writel(l, EMIFS_CONFIG);
-			}
-		} else {
-			if (count && (--count == 0)) {
-				l = omap_readl(EMIFS_CONFIG);
-				l &= ~OMAP_EMIFS_CONFIG_WP;
-				omap_writel(l, EMIFS_CONFIG);
-			}
-		}
-	}
-}
-
-static int __init omapflash_probe(struct platform_device *pdev)
-{
-	int err;
-	struct omapflash_info *info;
-	struct flash_platform_data *pdata = pdev->dev.platform_data;
-	struct resource *res = pdev->resource;
-	unsigned long size = res->end - res->start + 1;
-
-	info = kzalloc(sizeof(struct omapflash_info), GFP_KERNEL);
-	if (!info)
-		return -ENOMEM;
-
-	if (!request_mem_region(res->start, size, "flash")) {
-		err = -EBUSY;
-		goto out_free_info;
-	}
-
-	info->map.virt		= ioremap(res->start, size);
-	if (!info->map.virt) {
-		err = -ENOMEM;
-		goto out_release_mem_region;
-	}
-	info->map.name		= dev_name(&pdev->dev);
-	info->map.phys		= res->start;
-	info->map.size		= size;
-	info->map.bankwidth	= pdata->width;
-	info->map.set_vpp	= omap_set_vpp;
-
-	simple_map_init(&info->map);
-	info->mtd = do_map_probe(pdata->map_name, &info->map);
-	if (!info->mtd) {
-		err = -EIO;
-		goto out_iounmap;
-	}
-	info->mtd->owner = THIS_MODULE;
-
-	info->mtd->dev.parent = &pdev->dev;
-
-#ifdef CONFIG_MTD_PARTITIONS
-	err = parse_mtd_partitions(info->mtd, part_probes, &info->parts, 0);
-	if (err > 0)
-		add_mtd_partitions(info->mtd, info->parts, err);
-	else if (err <= 0 && pdata->parts)
-		add_mtd_partitions(info->mtd, pdata->parts, pdata->nr_parts);
-	else
-#endif
-		add_mtd_device(info->mtd);
-
-	platform_set_drvdata(pdev, info);
-
-	return 0;
-
-out_iounmap:
-	iounmap(info->map.virt);
-out_release_mem_region:
-	release_mem_region(res->start, size);
-out_free_info:
-	kfree(info);
-
-	return err;
-}
-
-static int __exit omapflash_remove(struct platform_device *pdev)
-{
-	struct omapflash_info *info = platform_get_drvdata(pdev);
-
-	platform_set_drvdata(pdev, NULL);
-
-	if (info) {
-		if (info->parts) {
-			del_mtd_partitions(info->mtd);
-			kfree(info->parts);
-		} else
-			del_mtd_device(info->mtd);
-		map_destroy(info->mtd);
-		release_mem_region(info->map.phys, info->map.size);
-		iounmap((void __iomem *) info->map.virt);
-		kfree(info);
-	}
-
-	return 0;
-}
-
-static struct platform_driver omapflash_driver = {
-	.remove	= __exit_p(omapflash_remove),
-	.driver = {
-		.name	= "omapflash",
-		.owner	= THIS_MODULE,
-	},
-};
-
-static int __init omapflash_init(void)
-{
-	return platform_driver_probe(&omapflash_driver, omapflash_probe);
-}
-
-static void __exit omapflash_exit(void)
-{
-	platform_driver_unregister(&omapflash_driver);
-}
-
-module_init(omapflash_init);
-module_exit(omapflash_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("MTD NOR map driver for TI OMAP boards");
-MODULE_ALIAS("platform:omapflash");
diff --git a/drivers/mtd/maps/pismo.c b/drivers/mtd/maps/pismo.c
new file mode 100644
index 00000000000..c48cad271f5
--- /dev/null
+++ b/drivers/mtd/maps/pismo.c
@@ -0,0 +1,320 @@
+/*
+ * PISMO memory driver - http://www.pismoworld.org/
+ *
+ * For ARM Realview and Versatile platforms
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/plat-ram.h>
+#include <linux/mtd/pismo.h>
+
+#define PISMO_NUM_CS	5
+
+struct pismo_cs_block {
+	u8	type;
+	u8	width;
+	__le16	access;
+	__le32	size;
+	u32	reserved[2];
+	char	device[32];
+} __packed;
+
+struct pismo_eeprom {
+	struct pismo_cs_block cs[PISMO_NUM_CS];
+	char	board[15];
+	u8	sum;
+} __packed;
+
+struct pismo_mem {
+	phys_addr_t base;
+	u32	size;
+	u16	access;
+	u8	width;
+	u8	type;
+};
+
+struct pismo_data {
+	struct i2c_client	*client;
+	void			(*vpp)(void *, int);
+	void			*vpp_data;
+	struct platform_device	*dev[PISMO_NUM_CS];
+};
+
+/* FIXME: set_vpp could do with a better calling convention */
+static struct pismo_data *vpp_pismo;
+static DEFINE_MUTEX(pismo_mutex);
+
+static int pismo_setvpp_probe_fix(struct pismo_data *pismo)
+{
+	mutex_lock(&pismo_mutex);
+	if (vpp_pismo) {
+		mutex_unlock(&pismo_mutex);
+		kfree(pismo);
+		return -EBUSY;
+	}
+	vpp_pismo = pismo;
+	mutex_unlock(&pismo_mutex);
+	return 0;
+}
+
+static void pismo_setvpp_remove_fix(struct pismo_data *pismo)
+{
+	mutex_lock(&pismo_mutex);
+	if (vpp_pismo == pismo)
+		vpp_pismo = NULL;
+	mutex_unlock(&pismo_mutex);
+}
+
+static void pismo_set_vpp(struct map_info *map, int on)
+{
+	struct pismo_data *pismo = vpp_pismo;
+
+	pismo->vpp(pismo->vpp_data, on);
+}
+/* end of hack */
+
+
+static unsigned int __devinit pismo_width_to_bytes(unsigned int width)
+{
+	width &= 15;
+	if (width > 2)
+		return 0;
+	return 1 << width;
+}
+
+static int __devinit pismo_eeprom_read(struct i2c_client *client, void *buf,
+	u8 addr, size_t size)
+{
+	int ret;
+	struct i2c_msg msg[] = {
+		{
+			.addr = client->addr,
+			.len = sizeof(addr),
+			.buf = &addr,
+		}, {
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = size,
+			.buf = buf,
+		},
+	};
+
+	ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
+
+	return ret == ARRAY_SIZE(msg) ? size : -EIO;
+}
+
+static int __devinit pismo_add_device(struct pismo_data *pismo, int i,
+	struct pismo_mem *region, const char *name, void *pdata, size_t psize)
+{
+	struct platform_device *dev;
+	struct resource res = { };
+	phys_addr_t base = region.base;
+	int ret;
+
+	if (base == ~0)
+		return -ENXIO;
+
+	res.start = base;
+	res.end = base + region->size - 1;
+	res.flags = IORESOURCE_MEM;
+
+	dev = platform_device_alloc(name, i);
+	if (!dev)
+		return -ENOMEM;
+	dev->dev.parent = &pismo->client->dev;
+
+	do {
+		ret = platform_device_add_resources(dev, &res, 1);
+		if (ret)
+			break;
+
+		ret = platform_device_add_data(dev, pdata, psize);
+		if (ret)
+			break;
+
+		ret = platform_device_add(dev);
+		if (ret)
+			break;
+
+		pismo->dev[i] = dev;
+		return 0;
+	} while (0);
+
+	platform_device_put(dev);
+	return ret;
+}
+
+static int __devinit pismo_add_nor(struct pismo_data *pismo, int i,
+	struct pismo_mem *region)
+{
+	struct physmap_flash_data data = {
+		.width = region->width,
+	};
+
+	if (pismo->vpp)
+		data.set_vpp = pismo_set_vpp;
+
+	return pismo_add_device(pismo, i, region, "physmap-flash",
+		&data, sizeof(data));
+}
+
+static int __devinit pismo_add_sram(struct pismo_data *pismo, int i,
+	struct pismo_mem *region)
+{
+	struct platdata_mtd_ram data = {
+		.bankwidth = region->width,
+	};
+
+	return pismo_add_device(pismo, i, region, "mtd-ram",
+		&data, sizeof(data));
+}
+
+static void __devinit pismo_add_one(struct pismo_data *pismo, int i,
+	const struct pismo_cs_block *cs, phys_addr_t base)
+{
+	struct device *dev = &pismo->client->dev;
+	struct pismo_mem region;
+
+	region.base = base;
+	region.type = cs->type;
+	region.width = pismo_width_to_bytes(cs->width);
+	region.access = le16_to_cpu(cs->access);
+	region.size = le32_to_cpu(cs->size);
+
+	if (region.width == 0) {
+		dev_err(dev, "cs%u: bad width: %02x, ignoring\n", i, cs->width);
+		return;
+	}
+
+	/*
+	 * FIXME: may need to the platforms memory controller here, but at
+	 * the moment we assume that it has already been correctly setup.
+	 * The memory controller can also tell us the base address as well.
+	 */
+
+	dev_info(dev, "cs%u: %.32s: type %02x access %u00ps size %uK\n",
+		i, cs->device, region.type, region.access, region.size / 1024);
+
+	switch (region.type) {
+	case 0:
+		break;
+	case 1:
+		/* static DOC */
+		break;
+	case 2:
+		/* static NOR */
+		pismo_add_nor(pismo, i, &region);
+		break;
+	case 3:
+		/* static RAM */
+		pismo_add_sram(pismo, i, &region);
+		break;
+	}
+}
+
+static int __devexit pismo_remove(struct i2c_client *client)
+{
+	struct pismo_data *pismo = i2c_get_clientdata(client);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(pismo->dev); i++)
+		platform_device_unregister(pismo->dev[i]);
+
+	/* FIXME: set_vpp needs saner arguments */
+	pismo_setvpp_remove_fix(pismo);
+
+	kfree(pismo);
+
+	return 0;
+}
+
+static int __devinit 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)) {
+		dev_err(&client->dev, "functionality mismatch\n");
+		return -EIO;
+	}
+
+	pismo = kzalloc(sizeof(*pismo), GFP_KERNEL);
+	if (!pismo)
+		return -ENOMEM;
+
+	/* FIXME: set_vpp needs saner arguments */
+	ret = pismo_setvpp_probe_fix(pismo);
+	if (ret)
+		return ret;
+
+	pismo->client = client;
+	if (pdata) {
+		pismo->vpp = pdata->set_vpp;
+		pismo->vpp_data = pdata->vpp_data;
+	}
+	i2c_set_clientdata(client, pismo);
+
+	ret = pismo_eeprom_read(client, &eeprom, 0, sizeof(eeprom));
+	if (ret < 0) {
+		dev_err(&client->dev, "error reading EEPROM: %d\n", ret);
+		return ret;
+	}
+
+	dev_info(&client->dev, "%.15s board found\n", eeprom.board);
+
+	for (i = 0; i < ARRAY_SIZE(eeprom.cs); i++)
+		if (eeprom.cs[i].type != 0xff)
+			pismo_add_one(pismo, i, &eeprom.cs[i],
+				      pdata->cs_addrs[i]);
+
+	return 0;
+}
+
+static const struct i2c_device_id pismo_id[] = {
+	{ "pismo" },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, pismo_id);
+
+static struct i2c_driver pismo_driver = {
+	.driver	= {
+		.name	= "pismo",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= pismo_probe,
+	.remove		= __devexit_p(pismo_remove),
+	.id_table	= pismo_id,
+};
+
+static int __init pismo_init(void)
+{
+	BUILD_BUG_ON(sizeof(struct pismo_cs_block) != 48);
+	BUILD_BUG_ON(sizeof(struct pismo_eeprom) != 256);
+
+	return i2c_add_driver(&pismo_driver);
+}
+module_init(pismo_init);
+
+static void __exit pismo_exit(void)
+{
+	i2c_del_driver(&pismo_driver);
+}
+module_exit(pismo_exit);
+
+MODULE_AUTHOR("Russell King <linux@arm.linux.org.uk>");
+MODULE_DESCRIPTION("PISMO memory driver");
+MODULE_LICENSE("GPL");