The uClinux map driver doesn't even use partitions, so we shouldn't require
it in order to work properly.
Signed-off-by: NTimofei Bondarenko <tim@ipi.ac.ru>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
CC: Greg Ungerer <gerg@uclinux.org>
CC: uclinux-dev@uclinux.org
CC: linux-mtd@lists.infradead.org
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

linux v2.6.31-rc6 can not detect NEC uPD29F064115.

uPD29F064115 is a 16 bit device.
datasheet:
  http://www.cn.necel.com/memory/cn/download/M16062EJ2V0DS00.pdf

This applies the same fix as used for SST chips in commit 
ca6f12c6 ("jedec_probe: Fix SST 16-bit 
chip detection").
Signed-off-by: NHiroshi Ito <ito@mlb.co.jp>
Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

If the erase region was found in the first iteration we read from
regions[-1]
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

If the erase region was found in the first iteration we read from
eraseregions[-1]
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

This patch adds 4-bit ECC support for large page NAND chips using the new
ECC mode NAND_ECC_HW_OOB_FIRST.  The platform data from board-dm355-evm
has been adjusted to use this mode.

The patches have been verified on DM355 device with 2KiB-page Micron
devices using mtd-tests and JFFS2.  Error correction up to 4 bits has
also been verified using nandwrite/nanddump utilities.
Reviewed-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NSneha Narnakaje <nsnehaprabha@ti.com>
Signed-off-by: NSandeep Paulraj <s-paulraj@ti.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

This patch adds the new mode NAND_ECC_HW_OOB_FIRST in the nand code to
support 4-bit ECC on TI DaVinci devices with large page (up to 2KiB) NAND
chips.  This ECC mode is similar to NAND_ECC_HW, with the exception of
read_page API that first reads the OOB area, reads the data in chunks,
feeds the ECC from OOB area to the ECC hw engine and perform any
correction on the data as per the ECC status reported by the engine.

"ECC_HW_OOB_FIRST" name suggested by Thomas Gleixner
Reviewed-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NSneha Narnakaje <nsnehaprabha@ti.com>
Signed-off-by: NSandeep Paulraj <s-paulraj@ti.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

This patch adds a new "page" parameter to all NAND read_page/read_page_raw
APIs.  The read_page API for the new mode ECC_HW_OOB_FIRST requires the
page information to send the READOOB command and read the OOB area before
the data area.
Reviewed-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NSneha Narnakaje <nsnehaprabha@ti.com>
Signed-off-by: NSandeep Paulraj <s-paulraj@ti.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Remove the ARM dependency from the generic "onenand" platform device
driver.  This change makes the driver useful for other architectures as
well.  Needed for the SuperH kfr2r09 board.

Apart from the obvious Kconfig bits, the most important change is the move
away from ARM specific includes and platform data.  Together with this
change the only in-tree board code gets an update, and the driver name is
also changed gracefully break potential out of tree drivers.

The driver is also updated to allow NULL as platform data together with a
few changes to make use of resource_size() and dev_name().
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Kyungmin Park <kmpark@infradead.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

orion_nand_probe lives in .init.text, so using platform_driver_register to
register it is wrong because binding a device after the init memory is
discarded (e.g.  via sysfs) results in an oops.

As requested by Nicolas Pitre platform_driver_probe is used instead of
moving the probe function to .devinit.text as proposed initially.  This
saves some memory, but devices registered after the driver is probed are
not bound (probably there are none) and binding via sysfs isn't possible.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Lennert Buytenhek <buytenh@marvell.com>
Cc: Saeed Bishara <saeed@marvell.com>
Cc: Joern Engel <joern@logfs.org>
Acked-by: NNicolas Pitre <nico@marvell.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Add an omitted unlock to one sst25l_erase fail path.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Add support for the non JEDEC SST25L SPI Flash devices.

[dwmw2: Some cleanups]
Signed-off-by: NAndre Renaud <andre@bluewatersys.com>
Signed-off-by: NRyan Mallon <ryan@bluewatersys.com>
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: "H Hartley Sweeten" <hartleys@visionengravers.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Move the jffs2 garbage collecting thread to the new kthread API.
Signed-off-by: NGerard Lledo <gerard.lledo@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Cleanin up after errors in init_msp_flash().

Also cleanup_msp_flash() attempts to determine the size of
msp_flash with `sizeof(msp_flash) / sizeof(struct mtd_info **)'
This will not work since msp_flash is not an array.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Make mtd_group and mtd_groups static since they are only used in this
file.

[Amended by Artem Bityutskiy]
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

All of the onenand drivers depend on mtd partition support being compiled
in, so just select it. Fixes up build breakage:

drivers/built-in.o: In function `generic_onenand_remove':
generic.c:(.devexit.text+0x80): undefined reference to `del_mtd_partitions'
Reported-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Signed-off-by: NSiddarth Gore <gores@marvell.com>
Signed-off-by: NNicolas Pitre <nico@marvell.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Check whether index is within bounds before testing the element.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

map[count] is checked before count < SLRAM_MAX_DEVICES_PARAMS
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

This patch fixes a spelling error that has resulted from copy and
pasting. The location of the error was found using a semantic patch
but the semantic patch was not trying to find these errors. After
looking things over it seemed logical that this change was needed.

The patch also makes sure mtd_list is not being freed if it has not
been allocated
Signed-off-by: NStoyan Gaydarov <sgayda2@uiuc.edu>
Signed-off-by: NVimal Singh <vimalsingh@ti.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

This patch allows core driver to choose ECC block size in
sw ecc case.
Signed-off-by: NVimal Singh <vimalsingh@ti.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Fix the misspelling to match the actual config variable defined in
drivers/mtd/devi ces/Kconfig:

config MTD_DATAFLASH_WRITE_VERIFY
        bool "Verify DataFlash page writes"
        depends on MTD_DATAFLASH
Signed-off-by: NRobert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

drivers/mtd/afs.c:244: warning: format ‘%5d’ expects type ‘int’, but argument 4 has type ‘uint64_t’

[dwmw2: fix incorrect 'KB' too]
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

1. <linux/io.h> should be included not <asm/io.h>
2. add platform specific header <mach/ts72xx.h>
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

mtdblock erase_write(): fix typo in comment
Signed-off-by: NMatthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Correcting debug prints by removing function names from print messages
and using '__func__' macro instead.

Function names were wrong in few places.
Signed-off-by: NVimal Singh <vimalsingh@ti.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Singed-off-by: NVimal Singh <vimalsingh@ti.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Define ECC status for 4-bit ECC status
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Signed-off-by: NMika Korhonen <mika.j.korhonen@gmail.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

The function jffs2_nor_wbuf_flash_setup() doesn't allocate the verify buffer
if CONFIG_JFFS2_FS_WBUF_VERIFY is defined, so causing a kernel panic when
that macro is enabled and the verify function is called. Similarly the
jffs2_nor_wbuf_flash_cleanup() must free the buffer if
CONFIG_JFFS2_FS_WBUF_VERIFY is enabled.
The following patch fixes the problem.
The following patch applies to 2.6.30 kernel.
Signed-off-by: NMassimo Cirillo <maxcir@gmail.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
Cc: stable@kernel.org

Arithmetic conversion in the mask computation makes the upper word
of the second argument passed down to mtd->read_oob(), be always 0
(assuming 'offs' being a 64-bit signed long long type, and
'mtd->writesize' being a 32-bit unsigned int type).

This patch applies over the other one adding masking in nftl_write,
"nftl: write support is broken".
Signed-off-by: NDimitri Gorokhovik <dimitri.gorokhovik@free.fr>
Cc: Tim Gardner <tim.gardner@canonical.com>
Cc: Scott James Remnant <scott@canonical.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Write support is broken in NFTL. Fix it.

Signed-off-by: <dimitri.gorokhovik@free.fr>
Cc: Tim Gardner <tim.gardner@canonical.com>
Cc: Scott James Remnant <scott@canonical.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

This patch fixes the following oops, observed with MTD_PARTITIONS=n:

m25p80 spi32766.0: m25p80 (1024 Kbytes)
Unable to handle kernel paging request for data at address 0x00000008
Faulting instruction address: 0xc03a54b0
Oops: Kernel access of bad area, sig: 11 [#1]
Modules linked in:
NIP: c03a54b0 LR: c03a5494 CTR: c01e98b8
REGS: ef82bb60 TRAP: 0300   Not tainted  (2.6.31-rc4-00167-g4733fd32)
MSR: 00029000 <EE,ME,CE>  CR: 24022022  XER: 20000000
DEAR: 00000008, ESR: 00000000
TASK = ef82c000[1] 'swapper' THREAD: ef82a000
GPR00: 00000000 ef82bc10 ef82c000 0000002e 00001eb8 ffffffff c01e9824 00000036
GPR08: c054ed40 c0542a08 00001eb8 00004000 22022022 1001a1a0 3ff8fd00 00000000
GPR16: 00000000 00000001 00000000 00000000 ef82bddc c0530000 efbef500 ef8356d0
GPR24: 00000000 ef8356d0 00000000 efbf7a00 c0530ec4 ffffffed efbf5300 c0541f98
NIP [c03a54b0] m25p_probe+0x22c/0x354
LR [c03a5494] m25p_probe+0x210/0x354
Call Trace:
[ef82bc10] [c03a5494] m25p_probe+0x210/0x354 (unreliable)
[ef82bca0] [c024e37c] spi_drv_probe+0x2c/0x3c
[ef82bcb0] [c01f1afc] driver_probe_device+0xa4/0x178
[ef82bcd0] [c01f06e8] bus_for_each_drv+0x6c/0xa8
[ef82bd00] [c01f1a34] device_attach+0x84/0xa8
...
Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

In the recent change by Al Viro that changes verious subsystems
to use "struct path" one case was missed in the autofs4 module
which causes mounts to no longer expire.
Signed-off-by: NIan Kent <raven@themaw.net>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Fix MacBookPro 3,1/4,1 quirk with ALC889A
  ALSA: hda - Add missing mux check for VT1708

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
  V4L/DVB (12564a): MAINTAINERS: Update gspca sn9c20x name style
  V4L/DVB (12502): gspca - sn9c20x: Fix gscpa sn9c20x build errors.
  V4L/DVB (12495): em28xx: Don't call em28xx_ir_init when disable_ir is true
  V4L/DVB (12457): zr364: wrong indexes
  V4L/DVB (12451): Update KConfig File to enable SDIO and USB interfaces
  V4L/DVB (12450): Siano: Fixed SDIO compilation bugs
  V4L/DVB (12449): adds webcam for Micron device MT9M111 0x143A to em28xx
  V4L/DVB (12446): sms1xxx: restore GPIO functionality for all Hauppauge devices

My previous patch (commit 4f8ee2c9: "lmb: Remove __init from
lmb_end_of_DRAM()") removed __init in lmb.c but missed the fact that it
was also marked as such in the .h
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Commit log for commit 517d3cc1
("[libata] ata_piix: Enable parallel scan") says:

    This patch turns on parallel scanning for the ata_piix driver.
    This driver is used on most netbooks (no AHCI for cheap storage it seems).
    The scan is the dominating time factor in the kernel boot for these
    devices; with this flag it gets cut in half for the device I used
    for testing (eeepc).
    Alan took a look at the driver source and concluded that it ought to be safe
    to do for this driver.  Alan has also checked with the hardware team.

and it is all true but once we put all things together additional
constraints for PATA controllers show up (some hardware registers
have per-host not per-port atomicity) and we risk misprogramming
the controller.

I used the following test to check whether the issue is real:

  @@ -736,8 +736,20 @@ static void piix_set_piomode(struct ata_
   			(timings[pio][1] << 8);
   	}
   	pci_write_config_word(dev, master_port, master_data);
  -	if (is_slave)
  +	if (is_slave) {
  +		if (ap->port_no == 0) {
  +			u8 tmp = slave_data;
  +
  +			while (slave_data == tmp) {
  +				pci_read_config_byte(dev, slave_port, &tmp);
  +				msleep(50);
  +			}
  +
  +			dev_printk(KERN_ERR, &dev->dev, "PATA parallel scan "
  +				   "race detected\n");
  +		}
   		pci_write_config_byte(dev, slave_port, slave_data);
  +	}

   	/* Ensure the UDMA bit is off - it will be turned back on if
   	   UDMA is selected */

and it indeed triggered the error message.

Lets fix all such races by adding an extra locking to ->set_piomode
and ->set_dmamode methods for PATA controllers.

[ Alan: would be better to take the host lock in libata-core for these
  cases so that we fix all the adapters in one swoop.  "Looks fine as a
  temproary quickfix tho" ]

Cc: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: NAlan Cox <alan@linux.intel.com>
Cc: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>