Merge branch 'mtd-2.6.24' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc

config MTD_WALNUT

	tristate "Flash device mapped on IBM 405GP Walnut"

	depends on MTD_JEDECPROBE && WALNUT

	depends on MTD_JEDECPROBE && WALNUT && !PPC_MERGE

	help

	  This enables access routines for the flash chips on the IBM 405GP

	  Walnut board. If you have one of these boards and would like to

config MTD_OCOTEA

	tristate "Flash devices mapped on IBM 440GX Ocotea"

	depends on MTD_CFI && OCOTEA

	depends on MTD_CFI && OCOTEA && !PPC_MERGE

	help

	  This enables access routines for the flash chips on the IBM 440GX

	  Ocotea board. If you have one of these boards and would like to

	  Redwood board. If you have one of these boards and would like to

	  use the flash chips on it, say 'Y'.

config MTD_TQM834x

	tristate "Flash device mapped on TQ Components TQM834x Boards"

	depends on MTD_CFI && TQM834x

	help

	  This enables access routines for the flash chips on the

	  TQ Components TQM834x boards. If you have one of these boards

	  and would like to use the flash chips on it, say 'Y'.

config MTD_OCELOT

	tristate "Momenco Ocelot boot flash device"

	depends on MOMENCO_OCELOT

obj-$(CONFIG_MTD_PLATRAM)	+= plat-ram.o

obj-$(CONFIG_MTD_OMAP_NOR)	+= omap_nor.o

obj-$(CONFIG_MTD_MTX1)		+= mtx-1_flash.o

obj-$(CONFIG_MTD_TQM834x)	+= tqm834x.o

/*

 * drivers/mtd/maps/pq2fads.c

 *

 * Mapping for the flash SIMM on 8272ADS and PQ2FADS board

 *

 * Author: Vitaly Bordug <vbordug@ru.mvista.com>

 *

 * 2005 (c) MontaVista Software, Inc. This file is licensed under

 * the terms of the GNU General Public License version 2. This program

 * is licensed "as is" without any warranty of any kind, whether express

 * or implied.

 */

#include <linux/module.h>

#include <linux/types.h>

#include <linux/kernel.h>

#include <linux/init.h>

#include <asm/io.h>

#include <asm/ppcboot.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/map.h>

#include <linux/mtd/partitions.h>

#include <linux/mtd/physmap.h>

/*

  NOTE: bank width and interleave relative to the installed flash

  should have been chosen within MTD_CFI_GEOMETRY options.

  */

#define PQ2FADS_BANK_WIDTH 4

static struct mtd_partition pq2fads_partitions[] = {

	{

#ifdef CONFIG_ADS8272

		.name		= "HRCW",

		.size		= 0x40000,

		.offset 	= 0,

		.mask_flags	= MTD_WRITEABLE,  /* force read-only */

	}, {

		.name		= "User FS",

		.size		= 0x5c0000,

		.offset 	= 0x40000,

#else

		.name		= "User FS",

		.size		= 0x600000,

		.offset 	= 0,

#endif

	}, {

		.name		= "uImage",

		.size		= 0x100000,

		.offset 	= 0x600000,

		.mask_flags	= MTD_WRITEABLE,  /* force read-only */

	}, {

		.name		= "bootloader",

		.size		= 0x40000,

		.offset		= 0x700000,

		.mask_flags	= MTD_WRITEABLE,  /* force read-only */

	}, {

		.name		= "bootloader env",

		.size		= 0x40000,

		.offset		= 0x740000,

		.mask_flags	= MTD_WRITEABLE,  /* force read-only */

	}

};

/* pointer to MPC885ADS board info data */

extern unsigned char __res[];

static int __init init_pq2fads_mtd(void)

{

	bd_t *bd = (bd_t *)__res;

	physmap_configure(bd->bi_flashstart, bd->bi_flashsize, PQ2FADS_BANK_WIDTH, NULL);

	physmap_set_partitions(pq2fads_partitions,

				sizeof (pq2fads_partitions) /

				sizeof (pq2fads_partitions[0]));

	return 0;

}

static void __exit cleanup_pq2fads_mtd(void)

{

}

module_init(init_pq2fads_mtd);

module_exit(cleanup_pq2fads_mtd);

MODULE_LICENSE("GPL");

MODULE_DESCRIPTION("MTD map and partitions for MPC8272ADS boards");

/*

 * drivers/mtd/maps/tqm834x.c

 *

 * MTD mapping driver for TQM834x boards

 *

 * Copyright 2005 Wolfgang Denk, DENX Software Engineering, <wd@denx.de>.

 *

 * This file is licensed under the terms of the GNU General Public License

 * version 2.  This program is licensed "as is" without any warranty of any

 * kind, whether express or implied.

 *

 */

#include <linux/init.h>

#include <linux/module.h>

#include <linux/types.h>

#include <linux/kernel.h>

#include <linux/slab.h>

#include <asm/io.h>

#include <asm/ppcboot.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/map.h>

#include <linux/mtd/partitions.h>

#define FLASH_BANK_MAX	2

extern unsigned char __res[];

/* trivial struct to describe partition information */

struct mtd_part_def

{

	int nums;

	unsigned char *type;

	struct mtd_partition* mtd_part;

};

static struct mtd_info* mtd_banks[FLASH_BANK_MAX];

static struct map_info* map_banks[FLASH_BANK_MAX];

static struct mtd_part_def part_banks[FLASH_BANK_MAX];

static unsigned long num_banks;

static unsigned long start_scan_addr;

#ifdef CONFIG_MTD_PARTITIONS

/*

 * The following defines the partition layout of TQM834x boards.

 *

 * See include/linux/mtd/partitions.h for definition of the

 * mtd_partition structure.

 *

 * Assume minimal initial size of 4 MiB per bank, will be updated

 * later in init_tqm834x_mtd() routine.

 */

/* Partition definition for the first flash bank which is always present. */

static struct mtd_partition tqm834x_partitions_bank1[] = {

	{

		.name	= "u-boot",		/* u-boot firmware	*/

		.offset	= 0x00000000,

		.size	= 0x00040000,		/* 256 KiB		*/

		/*mask_flags: MTD_WRITEABLE,	 * force read-only	*/

	},

	{

		.name	= "env",		/* u-boot environment	*/

		.offset	= 0x00040000,

		.size	= 0x00020000,		/* 128 KiB		*/

		/*mask_flags: MTD_WRITEABLE,	 * force read-only	*/

	},

	{

		.name	= "kernel",		/* linux kernel image	*/

		.offset	= 0x00060000,

		.size	= 0x00100000,		/* 1 MiB		*/

		/*mask_flags: MTD_WRITEABLE,	 * force read-only	*/

	},

	{

		.name	= "initrd",		/* ramdisk image	*/

		.offset	= 0x00160000,

		.size	= 0x00200000,		/* 2 MiB		*/

	},

	{

		.name	= "user",		/* user data		*/

		.offset	= 0x00360000,

		.size	= 0x000a0000,		/* remaining space	*/

		/* NOTE: this parttion size is re-calcated in		*/

		/* init_tqm834x_mtd() to cover actual remaining space.	*/

	},

};

/* Partition definition for the second flash bank which may be present on some

 * TQM834x boards.

 */

static struct mtd_partition tqm834x_partitions_bank2[] = {

	{

		.name	= "jffs2",		/* jffs2 filesystem	*/

		.offset	= 0x00000000,

		.size	= 0x00400000,		/* whole device		*/

		/* NOTE: this parttion size is re-calcated in		*/

		/* init_tqm834x_mtd() to cover actual device size.	*/

	},

};

#endif	/* CONFIG_MTD_PARTITIONS */

static int __init init_tqm834x_mtd(void)

{

	int idx = 0, ret = 0;

	unsigned long flash_addr, flash_size, mtd_size = 0;

	/* pointer to TQM834x board info data */

	bd_t *bd = (bd_t *)__res;

#ifdef CONFIG_MTD_CMDLINE_PARTS

	int n;

	char mtdid[4];

	const char *part_probes[] = { "cmdlinepart", NULL };

#endif

	flash_addr = bd->bi_flashstart;

	flash_size = bd->bi_flashsize;

	/* request maximum flash size address space */

	start_scan_addr = (unsigned long)ioremap(flash_addr, flash_size);

	if (!start_scan_addr) {

		printk("%s: Failed to ioremap address: 0x%lx\n",

		       __FUNCTION__, flash_addr);

		return -EIO;

	}

	for(idx = 0 ; idx < FLASH_BANK_MAX ; idx++) {

		if (mtd_size >= flash_size)

			break;

		pr_debug("%s: chip probing count %d\n", __FUNCTION__, idx);

		map_banks[idx] = kzalloc(sizeof(struct map_info), GFP_KERNEL);

		if (map_banks[idx] == NULL) {

			ret = -ENOMEM;

			goto error_mem;

		}

		map_banks[idx]->name = kzalloc(16, GFP_KERNEL);

		if (map_banks[idx]->name == NULL) {

			ret = -ENOMEM;

			goto error_mem;

		}

		sprintf(map_banks[idx]->name, "TQM834x-%d", idx);

		map_banks[idx]->size = flash_size;

		map_banks[idx]->bankwidth = 4;

		simple_map_init(map_banks[idx]);

		map_banks[idx]->virt = (void __iomem *)

			(start_scan_addr + ((idx > 0) ?

			(mtd_banks[idx-1] ? mtd_banks[idx-1]->size : 0) : 0));

		map_banks[idx]->phys =

			flash_addr + ((idx > 0) ?

			(mtd_banks[idx-1] ? mtd_banks[idx-1]->size : 0) : 0);

		/* start to probe flash chips */

		mtd_banks[idx] = do_map_probe("cfi_probe", map_banks[idx]);

		if (mtd_banks[idx]) {

			mtd_banks[idx]->owner = THIS_MODULE;

			mtd_size += mtd_banks[idx]->size;

			num_banks++;

			pr_debug("%s: bank %ld, name: %s, size: %d bytes \n",

				 __FUNCTION__, num_banks,

				 mtd_banks[idx]->name, mtd_banks[idx]->size);

		}

	}

	/* no supported flash chips found */

	if (!num_banks) {

		printk("TQM834x: No supported flash chips found!\n");

		ret = -ENXIO;

		goto error_mem;

	}

#ifdef CONFIG_MTD_PARTITIONS

	/*

	 * Select static partition definitions

	 */

	n = ARRAY_SIZE(tqm834x_partitions_bank1);

	part_banks[0].mtd_part	= tqm834x_partitions_bank1;

	part_banks[0].type	= "static image bank1";

	part_banks[0].nums	= n;

	/* update last partition size to cover actual remaining space */

	tqm834x_partitions_bank1[n - 1].size =

		mtd_banks[0]->size -

		tqm834x_partitions_bank1[n - 1].offset;

	/* check if we have second bank? */

	if (num_banks == 2) {

		n = ARRAY_SIZE(tqm834x_partitions_bank2);

		part_banks[1].mtd_part	= tqm834x_partitions_bank2;

		part_banks[1].type	= "static image bank2";

		part_banks[1].nums	= n;

		/* update last partition size to cover actual remaining space */

		tqm834x_partitions_bank2[n - 1].size =

			mtd_banks[1]->size -

			tqm834x_partitions_bank2[n - 1].offset;

	}

	for(idx = 0; idx < num_banks ; idx++) {

#ifdef CONFIG_MTD_CMDLINE_PARTS

		sprintf(mtdid, "%d", idx);

		n = parse_mtd_partitions(mtd_banks[idx],

					 part_probes,

					 &part_banks[idx].mtd_part,

					 0);

		pr_debug("%s: %d command line partitions on bank %s\n",

			 __FUNCTION__, n, mtdid);

		if (n > 0) {

			part_banks[idx].type = "command line";

			part_banks[idx].nums = n;

		}

#endif	/* CONFIG_MTD_CMDLINE_PARTS */

		if (part_banks[idx].nums == 0) {

			printk(KERN_NOTICE

			       "TQM834x flash bank %d: no partition info "

			       "available, registering whole device\n", idx);

			add_mtd_device(mtd_banks[idx]);

		} else {

			printk(KERN_NOTICE

			       "TQM834x flash bank %d: Using %s partition "

			       "definition\n", idx, part_banks[idx].type);

			add_mtd_partitions(mtd_banks[idx],

					   part_banks[idx].mtd_part,

					   part_banks[idx].nums);

		}

	}

#else	/* ! CONFIG_MTD_PARTITIONS */

	printk(KERN_NOTICE "TQM834x flash: registering %d flash banks "

			"at once\n", num_banks);

	for(idx = 0 ; idx < num_banks ; idx++)

		add_mtd_device(mtd_banks[idx]);

#endif	/* CONFIG_MTD_PARTITIONS */

	return 0;

error_mem:

	for (idx = 0 ; idx < FLASH_BANK_MAX ; idx++) {

		if (map_banks[idx] != NULL) {

			if (map_banks[idx]->name != NULL) {

				kfree(map_banks[idx]->name);

				map_banks[idx]->name = NULL;

			}

			kfree(map_banks[idx]);

			map_banks[idx] = NULL;

		}

	}

	iounmap((void *)start_scan_addr);

	return ret;

}

static void __exit cleanup_tqm834x_mtd(void)

{

	unsigned int idx = 0;

	for(idx = 0 ; idx < num_banks ; idx++) {

		/* destroy mtd_info previously allocated */

		if (mtd_banks[idx]) {

			del_mtd_partitions(mtd_banks[idx]);

			map_destroy(mtd_banks[idx]);

		}

		/* release map_info not used anymore */

		kfree(map_banks[idx]->name);

		kfree(map_banks[idx]);

	}

	if (start_scan_addr) {

		iounmap((void *)start_scan_addr);

		start_scan_addr = 0;

	}

}

module_init(init_tqm834x_mtd);

module_exit(cleanup_tqm834x_mtd);

MODULE_LICENSE("GPL");

MODULE_AUTHOR("Wolfgang Denk <wd@denx.de>");

MODULE_DESCRIPTION("MTD map driver for TQM834x boards");

config MTD_NAND_NDFC

	tristate "NDFC NanD Flash Controller"

	depends on 4xx

	depends on 4xx && !PPC_MERGE

	select MTD_NAND_ECC_SMC

	help

	 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs