Commit c8c55bcb authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge git://git.infradead.org/mtd-2.6 

* git://git.infradead.org/mtd-2.6: (91 commits)
  [MTD] [NAND] Blackfin on-chip NAND Flash Controller driver
  [MTD] [NOR] fix ctrl-alt-del can't reboot for intel flash bug
  [MTD] [NAND] Fix compiler warning in Alauda driver
  [JFFS2] Remove stray debugging printk
  [JFFS2] Handle dirents on the flash with embedded zero bytes in names.
  [JFFS2] Check for creation of dirents with embedded zero bytes in name.
  [JFFS2] Don't count all 'very dirty' blocks except in debug mode
  [JFFS2] Check whether garbage-collection actually obsoleted its victim.
  [JFFS2] Relax threshold for triggering GC due to dirty blocks.
  [MTD] [OneNAND] Fix typo related with recent commit
  [JFFS2] Trigger garbage collection when very_dirty_list size becomes excessive
  [MTD] [NAND] Avoid deadlock in erase callback; release chip lock first.
  [MTD] [NAND] Resume method for CAFÉ NAND controller
  [MTD] [NAND] Fix PCI ident table for CAFÉ NAND controller.
  [MTD] [NAND] s3c2410: fix arch moves
  [MTD] [OneNAND] fix numerous races
  [MTD] map driver for NOR flash on the Intel Vermilion Range chipset
  [JFFS2] Fix unpoint length
  [MTD] fix CFI point method for discontiguous maps
  [MTD] MAPS: Merge Lubbock and Mainstone drivers into common PXA2xx driver
  ...
parents 3749c66c ebf8889b

Documentation/DocBook/mtdnand.tmpl

+1 −4
Original line number Diff line number Diff line
@@ -275,16 +275,13 @@ int __init board_init (void) 
	int err = 0;



	/* Allocate memory for MTD device structure and private data */

	board_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip), GFP_KERNEL);

	board_mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);

	if (!board_mtd) {

		printk ("Unable to allocate NAND MTD device structure.\n");

		err = -ENOMEM;

		goto out;

	}



	/* Initialize structures */

	memset ((char *) board_mtd, 0, sizeof(struct mtd_info) + sizeof(struct nand_chip));



	/* map physical adress */

	baseaddr = (unsigned long)ioremap(CHIP_PHYSICAL_ADDRESS, 1024);

	if(!baseaddr){

drivers/mtd/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -278,6 +278,14 @@ config SSFDC 
	  This enables read only access to SmartMedia formatted NAND

	  flash. You can mount it with FAT file system.



config MTD_OOPS

	tristate "Log panic/oops to an MTD buffer"

	depends on MTD

	help

	  This enables panic and oops messages to be logged to a circular

	  buffer in a flash partition where it can be read back at some

	  later point.



source "drivers/mtd/chips/Kconfig"



source "drivers/mtd/maps/Kconfig"

drivers/mtd/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ obj-$(CONFIG_NFTL) += nftl.o 
obj-$(CONFIG_INFTL)		+= inftl.o

obj-$(CONFIG_RFD_FTL)		+= rfd_ftl.o

obj-$(CONFIG_SSFDC)		+= ssfdc.o

obj-$(CONFIG_MTD_OOPS)		+= mtdoops.o



nftl-objs		:= nftlcore.o nftlmount.o

inftl-objs		:= inftlcore.o inftlmount.o

drivers/mtd/chips/cfi_cmdset_0001.c

+24 −14
Original line number Diff line number Diff line
@@ -526,7 +526,7 @@ static int cfi_intelext_partition_fixup(struct mtd_info *mtd, 
	struct cfi_pri_intelext *extp = cfi->cmdset_priv;



	/*

	 * Probing of multi-partition flash ships.

	 * Probing of multi-partition flash chips.

	 *

	 * To support multiple partitions when available, we simply arrange

	 * for each of them to have their own flchip structure even if they
@@ -653,7 +653,7 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr 
 resettime:

	timeo = jiffies + HZ;

 retry:

	if (chip->priv && (mode == FL_WRITING || mode == FL_ERASING || mode == FL_OTP_WRITE)) {

	if (chip->priv && (mode == FL_WRITING || mode == FL_ERASING || mode == FL_OTP_WRITE || mode == FL_SHUTDOWN)) {

		/*

		 * OK. We have possibility for contension on the write/erase

		 * operations which are global to the real chip and not per
@@ -798,6 +798,9 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr 
		if (mode == FL_READY && chip->oldstate == FL_READY)

			return 0;



	case FL_SHUTDOWN:

		/* The machine is rebooting now,so no one can get chip anymore */

		return -EIO;

	default:

	sleep:

		set_current_state(TASK_UNINTERRUPTIBLE);
@@ -1166,28 +1169,34 @@ static int cfi_intelext_point (struct mtd_info *mtd, loff_t from, size_t len, si 
{

	struct map_info *map = mtd->priv;

	struct cfi_private *cfi = map->fldrv_priv;

	unsigned long ofs;

	unsigned long ofs, last_end = 0;

	int chipnum;

	int ret = 0;



	if (!map->virt || (from + len > mtd->size))

		return -EINVAL;



	*mtdbuf = (void *)map->virt + from;

	*retlen = 0;



	/* Now lock the chip(s) to POINT state */



	/* ofs: offset within the first chip that the first read should start */

	chipnum = (from >> cfi->chipshift);

	ofs = from - (chipnum << cfi->chipshift);



	*mtdbuf = (void *)map->virt + cfi->chips[chipnum].start + ofs;

	*retlen = 0;



	while (len) {

		unsigned long thislen;



		if (chipnum >= cfi->numchips)

			break;



		/* We cannot point across chips that are virtually disjoint */

		if (!last_end)

			last_end = cfi->chips[chipnum].start;

		else if (cfi->chips[chipnum].start != last_end)

			break;



		if ((len + ofs -1) >> cfi->chipshift)

			thislen = (1<<cfi->chipshift) - ofs;

		else
@@ -1201,6 +1210,7 @@ static int cfi_intelext_point (struct mtd_info *mtd, loff_t from, size_t len, si 
		len -= thislen;



		ofs = 0;

		last_end += 1 << cfi->chipshift;

		chipnum++;

	}

	return 0;
@@ -1780,7 +1790,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip, 
	return ret;

}



int cfi_intelext_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)

static int cfi_intelext_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)

{

	unsigned long ofs, len;

	int ret;
@@ -1930,7 +1940,7 @@ static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, size_t len) 
	printk(KERN_DEBUG "%s: lock status before, ofs=0x%08llx, len=0x%08X\n",

	       __FUNCTION__, ofs, len);

	cfi_varsize_frob(mtd, do_printlockstatus_oneblock,

		ofs, len, 0);

		ofs, len, NULL);

#endif



	ret = cfi_varsize_frob(mtd, do_xxlock_oneblock,
@@ -1940,7 +1950,7 @@ static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, size_t len) 
	printk(KERN_DEBUG "%s: lock status after, ret=%d\n",

	       __FUNCTION__, ret);

	cfi_varsize_frob(mtd, do_printlockstatus_oneblock,

		ofs, len, 0);

		ofs, len, NULL);

#endif



	return ret;
@@ -1954,7 +1964,7 @@ static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len) 
	printk(KERN_DEBUG "%s: lock status before, ofs=0x%08llx, len=0x%08X\n",

	       __FUNCTION__, ofs, len);

	cfi_varsize_frob(mtd, do_printlockstatus_oneblock,

		ofs, len, 0);

		ofs, len, NULL);

#endif



	ret = cfi_varsize_frob(mtd, do_xxlock_oneblock,
@@ -1964,7 +1974,7 @@ static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len) 
	printk(KERN_DEBUG "%s: lock status after, ret=%d\n",

	       __FUNCTION__, ret);

	cfi_varsize_frob(mtd, do_printlockstatus_oneblock,

		ofs, len, 0);

		ofs, len, NULL);

#endif



	return ret;
@@ -2255,7 +2265,7 @@ static void cfi_intelext_save_locks(struct mtd_info *mtd) 
			adr = region->offset + block * len;



			status = cfi_varsize_frob(mtd,

					do_getlockstatus_oneblock, adr, len, 0);

					do_getlockstatus_oneblock, adr, len, NULL);

			if (status)

				set_bit(block, region->lockmap);

			else
@@ -2402,10 +2412,10 @@ static int cfi_intelext_reset(struct mtd_info *mtd) 
		   and switch to array mode so any bootloader in

		   flash is accessible for soft reboot. */

		spin_lock(chip->mutex);

		ret = get_chip(map, chip, chip->start, FL_SYNCING);

		ret = get_chip(map, chip, chip->start, FL_SHUTDOWN);

		if (!ret) {

			map_write(map, CMD(0xff), chip->start);

			chip->state = FL_READY;

			chip->state = FL_SHUTDOWN;

		}

		spin_unlock(chip->mutex);

	}

drivers/mtd/chips/cfi_cmdset_0002.c

+1 −1
Original line number Diff line number Diff line
@@ -1609,7 +1609,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip, 
}





int cfi_amdstd_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)

static int cfi_amdstd_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)

{

	unsigned long ofs, len;

	int ret;

CRA Git | Maintained and supported by SUSTech CRA and CCSE