Merge branch 'misc/mtd/sharpsl-nand' of git://git.kernel.org/pub/scm/linux/kernel/git/lumag/tosa-2.6

arch/arm/mach-pxa/corgi.c

@@ -26,6 +26,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
 #include <linux/spi/corgi_lcd.h>
+#include <linux/mtd/sharpsl.h>
 #include <video/w100fb.h>
 
 #include <asm/setup.h>
@@ -541,11 +542,61 @@ err_free_1:
 static inline void corgi_init_spi(void) {}
 #endif
 
+static struct mtd_partition sharpsl_nand_partitions[] = {
+	{
+		.name = "System Area",
+		.offset = 0,
+		.size = 7 * 1024 * 1024,
+	},
+	{
+		.name = "Root Filesystem",
+		.offset = 7 * 1024 * 1024,
+		.size = 25 * 1024 * 1024,
+	},
+	{
+		.name = "Home Filesystem",
+		.offset = MTDPART_OFS_APPEND,
+		.size = MTDPART_SIZ_FULL,
+	},
+};
+
+static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
+
+static struct nand_bbt_descr sharpsl_bbt = {
+	.options = 0,
+	.offs = 4,
+	.len = 2,
+	.pattern = scan_ff_pattern
+};
+
+static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
+	.badblock_pattern	= &sharpsl_bbt,
+	.partitions		= sharpsl_nand_partitions,
+	.nr_partitions		= ARRAY_SIZE(sharpsl_nand_partitions),
+};
+
+static struct resource sharpsl_nand_resources[] = {
+	{
+		.start	= 0x0C000000,
+		.end	= 0x0C000FFF,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device sharpsl_nand_device = {
+	.name		= "sharpsl-nand",
+	.id		= -1,
+	.resource	= sharpsl_nand_resources,
+	.num_resources	= ARRAY_SIZE(sharpsl_nand_resources),
+	.dev.platform_data	= &sharpsl_nand_platform_data,
+};
+
 static struct platform_device *devices[] __initdata = {
 	&corgiscoop_device,
 	&corgifb_device,
 	&corgikbd_device,
 	&corgiled_device,
+	&sharpsl_nand_device,
 };
 
 static void corgi_poweroff(void)
@@ -585,6 +636,9 @@ static void __init corgi_init(void)
 
 	platform_scoop_config = &corgi_pcmcia_config;
 
+	if (machine_is_husky())
+		sharpsl_nand_partitions[1].size = 53 * 1024 * 1024;
+
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 }
 

arch/arm/mach-pxa/poodle.c

@@ -23,6 +23,7 @@
 #include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
+#include <linux/mtd/sharpsl.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -413,9 +414,59 @@ static struct pxafb_mach_info poodle_fb_info = {
 	.lcd_conn	= LCD_COLOR_TFT_16BPP,
 };
 
+static struct mtd_partition sharpsl_nand_partitions[] = {
+	{
+		.name = "System Area",
+		.offset = 0,
+		.size = 7 * 1024 * 1024,
+	},
+	{
+		.name = "Root Filesystem",
+		.offset = 7 * 1024 * 1024,
+		.size = 22 * 1024 * 1024,
+	},
+	{
+		.name = "Home Filesystem",
+		.offset = MTDPART_OFS_APPEND,
+		.size = MTDPART_SIZ_FULL,
+	},
+};
+
+static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
+
+static struct nand_bbt_descr sharpsl_bbt = {
+	.options = 0,
+	.offs = 4,
+	.len = 2,
+	.pattern = scan_ff_pattern
+};
+
+static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
+	.badblock_pattern	= &sharpsl_bbt,
+	.partitions		= sharpsl_nand_partitions,
+	.nr_partitions		= ARRAY_SIZE(sharpsl_nand_partitions),
+};
+
+static struct resource sharpsl_nand_resources[] = {
+	{
+		.start	= 0x0C000000,
+		.end	= 0x0C000FFF,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device sharpsl_nand_device = {
+	.name		= "sharpsl-nand",
+	.id		= -1,
+	.resource	= sharpsl_nand_resources,
+	.num_resources	= ARRAY_SIZE(sharpsl_nand_resources),
+	.dev.platform_data	= &sharpsl_nand_platform_data,
+};
+
 static struct platform_device *devices[] __initdata = {
 	&poodle_locomo_device,
 	&poodle_scoop_device,
+	&sharpsl_nand_device,
 };
 
 static void poodle_poweroff(void)

arch/arm/mach-pxa/spitz.c

@@ -30,6 +30,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
 #include <linux/spi/corgi_lcd.h>
+#include <linux/mtd/sharpsl.h>
 
 #include <asm/setup.h>
 #include <asm/memory.h>
@@ -608,11 +609,60 @@ static struct pxafb_mach_info spitz_pxafb_info = {
 	.lcd_conn	= LCD_COLOR_TFT_16BPP | LCD_ALTERNATE_MAPPING,
 };
 
+static struct mtd_partition sharpsl_nand_partitions[] = {
+	{
+		.name = "System Area",
+		.offset = 0,
+		.size = 7 * 1024 * 1024,
+	},
+	{
+		.name = "Root Filesystem",
+		.offset = 7 * 1024 * 1024,
+	},
+	{
+		.name = "Home Filesystem",
+		.offset = MTDPART_OFS_APPEND,
+		.size = MTDPART_SIZ_FULL,
+	},
+};
+
+static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
+
+static struct nand_bbt_descr sharpsl_bbt = {
+	.options = 0,
+	.offs = 4,
+	.len = 2,
+	.pattern = scan_ff_pattern
+};
+
+static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
+	.badblock_pattern	= &sharpsl_bbt,
+	.partitions		= sharpsl_nand_partitions,
+	.nr_partitions		= ARRAY_SIZE(sharpsl_nand_partitions),
+};
+
+static struct resource sharpsl_nand_resources[] = {
+	{
+		.start	= 0x0C000000,
+		.end	= 0x0C000FFF,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device sharpsl_nand_device = {
+	.name		= "sharpsl-nand",
+	.id		= -1,
+	.resource	= sharpsl_nand_resources,
+	.num_resources	= ARRAY_SIZE(sharpsl_nand_resources),
+	.dev.platform_data	= &sharpsl_nand_platform_data,
+};
+
 
 static struct platform_device *devices[] __initdata = {
 	&spitzscoop_device,
 	&spitzkbd_device,
 	&spitzled_device,
+	&sharpsl_nand_device,
 };
 
 static void spitz_poweroff(void)
@@ -635,6 +685,14 @@ static void __init common_init(void)
 	pm_power_off = spitz_poweroff;
 	arm_pm_restart = spitz_restart;
 
+	if (machine_is_spitz()) {
+		sharpsl_nand_partitions[1].size = 5 * 1024 * 1024;
+	} else if (machine_is_akita()) {
+		sharpsl_nand_partitions[1].size = 58 * 1024 * 1024;
+	} else if (machine_is_borzoi()) {
+		sharpsl_nand_partitions[1].size = 32 * 1024 * 1024;
+	}
+
 	PMCR = 0x00;
 
 	/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
@@ -679,10 +737,29 @@ static struct i2c_board_info akita_i2c_board_info[] = {
 	},
 };
 
+static struct nand_bbt_descr sharpsl_akita_bbt = {
+	.options = 0,
+	.offs = 4,
+	.len = 1,
+	.pattern = scan_ff_pattern
+};
+
+static struct nand_ecclayout akita_oobinfo = {
+	.eccbytes = 24,
+	.eccpos = {
+		   0x5, 0x1, 0x2, 0x3, 0x6, 0x7, 0x15, 0x11,
+		   0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23,
+		   0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37},
+	.oobfree = {{0x08, 0x09}}
+};
+
 static void __init akita_init(void)
 {
 	spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
 
+	sharpsl_nand_platform_data.badblock_pattern = &sharpsl_akita_bbt;
+	sharpsl_nand_platform_data.ecc_layout = &akita_oobinfo;
+
 	/* We just pretend the second element of the array doesn't exist */
 	spitz_pcmcia_config.num_devs = 1;
 	platform_scoop_config = &spitz_pcmcia_config;

drivers/mtd/nand/sharpsl.c

@@ -2,6 +2,7 @@
  * drivers/mtd/nand/sharpsl.c
  *
  *  Copyright (C) 2004 Richard Purdie
+ *  Copyright (C) 2008 Dmitry Baryshkov
  *
  *  Based on Sharp's NAND driver sharp_sl.c
  *
@@ -19,22 +20,31 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/nand_ecc.h>
 #include <linux/mtd/partitions.h>
+#include <linux/mtd/sharpsl.h>
 #include <linux/interrupt.h>
+#include <linux/platform_device.h>
+
 #include <asm/io.h>
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
 
-static void __iomem *sharpsl_io_base;
-static int sharpsl_phys_base = 0x0C000000;
+struct sharpsl_nand {
+	struct mtd_info		mtd;
+	struct nand_chip	chip;
+
+	void __iomem		*io;
+};
+
+#define mtd_to_sharpsl(_mtd)	container_of(_mtd, struct sharpsl_nand, mtd)
 
 /* register offset */
-#define ECCLPLB	 	sharpsl_io_base+0x00	/* line parity 7 - 0 bit */
-#define ECCLPUB	 	sharpsl_io_base+0x04	/* line parity 15 - 8 bit */
-#define ECCCP	   	sharpsl_io_base+0x08	/* column parity 5 - 0 bit */
-#define ECCCNTR	 	sharpsl_io_base+0x0C	/* ECC byte counter */
-#define ECCCLRR	 	sharpsl_io_base+0x10	/* cleare ECC */
-#define FLASHIO	 	sharpsl_io_base+0x14	/* Flash I/O */
-#define FLASHCTL	sharpsl_io_base+0x18	/* Flash Control */
+#define ECCLPLB		0x00	/* line parity 7 - 0 bit */
+#define ECCLPUB		0x04	/* line parity 15 - 8 bit */
+#define ECCCP		0x08	/* column parity 5 - 0 bit */
+#define ECCCNTR		0x0C	/* ECC byte counter */
+#define ECCCLRR		0x10	/* cleare ECC */
+#define FLASHIO		0x14	/* Flash I/O */
+#define FLASHCTL	0x18	/* Flash Control */
 
 /* Flash control bit */
 #define FLRYBY		(1 << 5)
@@ -44,35 +54,6 @@ static int sharpsl_phys_base = 0x0C000000;
 #define FLCLE		(1 << 1)
 #define FLCE0		(1 << 0)
 
-/*
- * MTD structure for SharpSL
- */
-static struct mtd_info *sharpsl_mtd = NULL;
-
-/*
- * Define partitions for flash device
- */
-#define DEFAULT_NUM_PARTITIONS 3
-
-static int nr_partitions;
-static struct mtd_partition sharpsl_nand_default_partition_info[] = {
-	{
-	 .name = "System Area",
-	 .offset = 0,
-	 .size = 7 * 1024 * 1024,
-	 },
-	{
-	 .name = "Root Filesystem",
-	 .offset = 7 * 1024 * 1024,
-	 .size = 30 * 1024 * 1024,
-	 },
-	{
-	 .name = "Home Filesystem",
-	 .offset = MTDPART_OFS_APPEND,
-	 .size = MTDPART_SIZ_FULL,
-	 },
-};
-
 /*
  *	hardware specific access to control-lines
  *	ctrl:
@@ -84,6 +65,7 @@ static struct mtd_partition sharpsl_nand_default_partition_info[] = {
 static void sharpsl_nand_hwcontrol(struct mtd_info *mtd, int cmd,
 				   unsigned int ctrl)
 {
+	struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
 	struct nand_chip *chip = mtd->priv;
 
 	if (ctrl & NAND_CTRL_CHANGE) {
@@ -93,103 +75,97 @@ static void sharpsl_nand_hwcontrol(struct mtd_info *mtd, int cmd,
 
 		bits ^= 0x11;
 
-		writeb((readb(FLASHCTL) & ~0x17) | bits, FLASHCTL);
+		writeb((readb(sharpsl->io + FLASHCTL) & ~0x17) | bits, sharpsl->io + FLASHCTL);
 	}
 
 	if (cmd != NAND_CMD_NONE)
 		writeb(cmd, chip->IO_ADDR_W);
 }
 
-static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
-
-static struct nand_bbt_descr sharpsl_bbt = {
-	.options = 0,
-	.offs = 4,
-	.len = 2,
-	.pattern = scan_ff_pattern
-};
-
-static struct nand_bbt_descr sharpsl_akita_bbt = {
-	.options = 0,
-	.offs = 4,
-	.len = 1,
-	.pattern = scan_ff_pattern
-};
-
-static struct nand_ecclayout akita_oobinfo = {
-	.eccbytes = 24,
-	.eccpos = {
-		   0x5, 0x1, 0x2, 0x3, 0x6, 0x7, 0x15, 0x11,
-		   0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23,
-		   0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37},
-	.oobfree = {{0x08, 0x09}}
-};
-
 static int sharpsl_nand_dev_ready(struct mtd_info *mtd)
 {
-	return !((readb(FLASHCTL) & FLRYBY) == 0);
+	struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
+	return !((readb(sharpsl->io + FLASHCTL) & FLRYBY) == 0);
 }
 
 static void sharpsl_nand_enable_hwecc(struct mtd_info *mtd, int mode)
 {
-	writeb(0, ECCCLRR);
+	struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
+	writeb(0, sharpsl->io + ECCCLRR);
 }
 
 static int sharpsl_nand_calculate_ecc(struct mtd_info *mtd, const u_char * dat, u_char * ecc_code)
 {
-	ecc_code[0] = ~readb(ECCLPUB);
-	ecc_code[1] = ~readb(ECCLPLB);
-	ecc_code[2] = (~readb(ECCCP) << 2) | 0x03;
-	return readb(ECCCNTR) != 0;
+	struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
+	ecc_code[0] = ~readb(sharpsl->io + ECCLPUB);
+	ecc_code[1] = ~readb(sharpsl->io + ECCLPLB);
+	ecc_code[2] = (~readb(sharpsl->io + ECCCP) << 2) | 0x03;
+	return readb(sharpsl->io + ECCCNTR) != 0;
 }
 
 #ifdef CONFIG_MTD_PARTITIONS
-const char *part_probes[] = { "cmdlinepart", NULL };
+static const char *part_probes[] = { "cmdlinepart", NULL };
 #endif
 
 /*
  * Main initialization routine
  */
-static int __init sharpsl_nand_init(void)
+static int __devinit sharpsl_nand_probe(struct platform_device *pdev)
 {
 	struct nand_chip *this;
+#ifdef CONFIG_MTD_PARTITIONS
 	struct mtd_partition *sharpsl_partition_info;
+	int nr_partitions;
+#endif
+	struct resource *r;
 	int err = 0;
+	struct sharpsl_nand *sharpsl;
+	struct sharpsl_nand_platform_data *data = pdev->dev.platform_data;
+
+	if (!data) {
+		dev_err(&pdev->dev, "no platform data!\n");
+		return -EINVAL;
+	}
 
 	/* Allocate memory for MTD device structure and private data */
-	sharpsl_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
-	if (!sharpsl_mtd) {
+	sharpsl = kzalloc(sizeof(struct sharpsl_nand), GFP_KERNEL);
+	if (!sharpsl) {
 		printk("Unable to allocate SharpSL NAND MTD device structure.\n");
 		return -ENOMEM;
 	}
 
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!r) {
+		dev_err(&pdev->dev, "no io memory resource defined!\n");
+		err = -ENODEV;
+		goto err_get_res;
+	}
+
 	/* map physical address */
-	sharpsl_io_base = ioremap(sharpsl_phys_base, 0x1000);
-	if (!sharpsl_io_base) {
+	sharpsl->io = ioremap(r->start, resource_size(r));
+	if (!sharpsl->io) {
 		printk("ioremap to access Sharp SL NAND chip failed\n");
-		kfree(sharpsl_mtd);
-		return -EIO;
+		err = -EIO;
+		goto err_ioremap;
 	}
 
 	/* Get pointer to private data */
-	this = (struct nand_chip *)(&sharpsl_mtd[1]);
-
-	/* Initialize structures */
-	memset(sharpsl_mtd, 0, sizeof(struct mtd_info));
-	memset(this, 0, sizeof(struct nand_chip));
+	this = (struct nand_chip *)(&sharpsl->chip);
 
 	/* Link the private data with the MTD structure */
-	sharpsl_mtd->priv = this;
-	sharpsl_mtd->owner = THIS_MODULE;
+	sharpsl->mtd.priv = this;
+	sharpsl->mtd.owner = THIS_MODULE;
+
+	platform_set_drvdata(pdev, sharpsl);
 
 	/*
 	 * PXA initialize
 	 */
-	writeb(readb(FLASHCTL) | FLWP, FLASHCTL);
+	writeb(readb(sharpsl->io + FLASHCTL) | FLWP, sharpsl->io + FLASHCTL);
 
 	/* Set address of NAND IO lines */
-	this->IO_ADDR_R = FLASHIO;
-	this->IO_ADDR_W = FLASHIO;
+	this->IO_ADDR_R = sharpsl->io + FLASHIO;
+	this->IO_ADDR_W = sharpsl->io + FLASHIO;
 	/* Set address of hardware control function */
 	this->cmd_ctrl = sharpsl_nand_hwcontrol;
 	this->dev_ready = sharpsl_nand_dev_ready;
@@ -199,68 +175,89 @@ static int __init sharpsl_nand_init(void)
 	this->ecc.mode = NAND_ECC_HW;
 	this->ecc.size = 256;
 	this->ecc.bytes = 3;
-	this->badblock_pattern = &sharpsl_bbt;
-	if (machine_is_akita() || machine_is_borzoi()) {
-		this->badblock_pattern = &sharpsl_akita_bbt;
-		this->ecc.layout = &akita_oobinfo;
-	}
+	this->badblock_pattern = data->badblock_pattern;
+	this->ecc.layout = data->ecc_layout;
 	this->ecc.hwctl = sharpsl_nand_enable_hwecc;
 	this->ecc.calculate = sharpsl_nand_calculate_ecc;
 	this->ecc.correct = nand_correct_data;
 
 	/* Scan to find existence of the device */
-	err = nand_scan(sharpsl_mtd, 1);
-	if (err) {
-		iounmap(sharpsl_io_base);
-		kfree(sharpsl_mtd);
-		return err;
-	}
+	err = nand_scan(&sharpsl->mtd, 1);
+	if (err)
+		goto err_scan;
 
 	/* Register the partitions */
-	sharpsl_mtd->name = "sharpsl-nand";
-	nr_partitions = parse_mtd_partitions(sharpsl_mtd, part_probes, &sharpsl_partition_info, 0);
-
+	sharpsl->mtd.name = "sharpsl-nand";
+#ifdef CONFIG_MTD_PARTITIONS
+	nr_partitions = parse_mtd_partitions(&sharpsl->mtd, part_probes, &sharpsl_partition_info, 0);
 	if (nr_partitions <= 0) {
-		nr_partitions = DEFAULT_NUM_PARTITIONS;
-		sharpsl_partition_info = sharpsl_nand_default_partition_info;
-		if (machine_is_poodle()) {
-			sharpsl_partition_info[1].size = 22 * 1024 * 1024;
-		} else if (machine_is_corgi() || machine_is_shepherd()) {
-			sharpsl_partition_info[1].size = 25 * 1024 * 1024;
-		} else if (machine_is_husky()) {
-			sharpsl_partition_info[1].size = 53 * 1024 * 1024;
-		} else if (machine_is_spitz()) {
-			sharpsl_partition_info[1].size = 5 * 1024 * 1024;
-		} else if (machine_is_akita()) {
-			sharpsl_partition_info[1].size = 58 * 1024 * 1024;
-		} else if (machine_is_borzoi()) {
-			sharpsl_partition_info[1].size = 32 * 1024 * 1024;
-		}
+		nr_partitions = data->nr_partitions;
+		sharpsl_partition_info = data->partitions;
 	}
 
-	add_mtd_partitions(sharpsl_mtd, sharpsl_partition_info, nr_partitions);
+	if (nr_partitions > 0)
+		err = add_mtd_partitions(&sharpsl->mtd, sharpsl_partition_info, nr_partitions);
+	else
+#endif
+	err = add_mtd_device(&sharpsl->mtd);
+	if (err)
+		goto err_add;
 
 	/* Return happy */
 	return 0;
-}
 
-module_init(sharpsl_nand_init);
+err_add:
+	nand_release(&sharpsl->mtd);
+
+err_scan:
+	platform_set_drvdata(pdev, NULL);
+	iounmap(sharpsl->io);
+err_ioremap:
+err_get_res:
+	kfree(sharpsl);
+	return err;
+}
 
 /*
  * Clean up routine
  */
-static void __exit sharpsl_nand_cleanup(void)
+static int __devexit sharpsl_nand_remove(struct platform_device *pdev)
 {
+	struct sharpsl_nand *sharpsl = platform_get_drvdata(pdev);
+
 	/* Release resources, unregister device */
-	nand_release(sharpsl_mtd);
+	nand_release(&sharpsl->mtd);
 
-	iounmap(sharpsl_io_base);
+	platform_set_drvdata(pdev, NULL);
+
+	iounmap(sharpsl->io);
 
 	/* Free the MTD device structure */
-	kfree(sharpsl_mtd);
+	kfree(sharpsl);
+
+	return 0;
+}
+
+static struct platform_driver sharpsl_nand_driver = {
+	.driver = {
+		.name	= "sharpsl-nand",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= sharpsl_nand_probe,
+	.remove		= __devexit_p(sharpsl_nand_remove),
+};
+
+static int __init sharpsl_nand_init(void)
+{
+	return platform_driver_register(&sharpsl_nand_driver);
 }
+module_init(sharpsl_nand_init);
 
-module_exit(sharpsl_nand_cleanup);
+static void __exit sharpsl_nand_exit(void)
+{
+	platform_driver_unregister(&sharpsl_nand_driver);
+}
+module_exit(sharpsl_nand_exit);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");

include/linux/mtd/sharpsl.h

@@ -0,0 +1,20 @@
+/*
+ * SharpSL NAND support
+ *
+ * Copyright (C) 2008 Dmitry Baryshkov
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/partitions.h>
+
+struct sharpsl_nand_platform_data {
+	struct nand_bbt_descr	*badblock_pattern;
+	struct nand_ecclayout	*ecc_layout;
+	struct mtd_partition	*partitions;
+	unsigned int		nr_partitions;
+};