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path: root/drivers/mtd/devices/m25p80.c
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* mtd: m25p80 timeout too short for worst-case m25p16 devicesSteven A. Falco2009-06-26
| | | | | | | | The m25p16 data sheet from numonyx lists the worst-case bulk erase time (tBE) as 40 seconds. Signed-off-by: Steven A. Falco <sfalco@harris.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: m25p80: add support for Macronix MX25L12805DLennert Buytenhek2009-06-05
| | | | | | Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: m25p80 nand: add m45pe10 idsMatthieu CASTET2009-06-05
| | | | | | | | | | this patch add m45pe10 [1] chip support to the m25p80 driver. [1] http://www.numonyx.com/Documents/Datasheets/M45PE10.pdf Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: fix timeout in M25P80 driverPeter Horton2009-05-08
| | | | | | | | | | | | | Extend erase timeout in M25P80 SPI Flash driver. The M25P80 drivers fails erasing sectors on a M25P128 because the ready wait timeout is too short. Change the timeout from a simple loop count to a suitable number of seconds. Signed-off-by: Peter Horton <zero@colonel-panic.org> Tested-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: Bug in m25p80.c during whole-chip eraseSteven A. Falco2009-04-29
| | | | | | | | | | | | | | There is a logic error in "whole chip erase" for the m25p80 family. If the whole device is successfully erased, erase_chip() will return 0, and the code will fall through to the "else" clause, and do sector-by-sector erase in addition to the whole-chip erase. This patch corrects that. Also, the MAX_READY_WAIT_COUNT is insufficient for an m25p16 connected to a 400 MHz powerpc. Increasing it allows me to successfully program the device on my board. Signed-off-by: Steven A. Falco <sfalco@harris.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] support driver model updatesDavid Brownell2009-04-04
| | | | | | | | | | | | Follow-on patch to the previous driver model patch for the MTD framework. This one makes various MTD drivers connect to the driver model tree, so /sys/devices/virtual/mtd/* nodes are no longer present ... mostly drivers used on boards I have handy. Based on a patch from Kay Sievers. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] partitioning utility predicatesDavid Brownell2009-03-20
| | | | | | | | | | | | | | | Move mtd_has_partitions() and mtd_has_cmdlinepart() inlines from a DaVinci-specific driver to the <linux/mtd/partitions.h> header. Use those to eliminate #ifdefs in two drivers which had their own definitions of mtd_has_partitions(). Quite a lot of other MTD drivers could benefit from using use one or both of these to remove #ifdeffery. Maybe some Janitors would like to help. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers2008-12-23
| | | | | | Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] fix m25p80 64-bit divisionsArtem Bityutskiy2008-12-19
| | | | | | | | | | | | | | | | | | | | | | | MTD has recently been upgraded for 64-bit support, see commit number 69423d99fc182a81f3c5db3eb5c140acc6fc64be in the mtd-2.6.git tree (git://git.infradead.org/mtd-2.6.git) or see this URL: http://git.infradead.org/mtd-2.6.git?a=commit;h=69423d99fc182a81f3c5db3eb5c140acc6fc64be Some variables in MTD data structures which were 32-bit became 64-bit. Namely, the 'size' field in 'struct mtd_info' and the 'addr'/'len' fields in 'struct erase_info'. This means we have to use 'do_div' to divide them. This patch fixes the following linking error: ERROR: "__umoddi3" [drivers/mtd/devices/m25p80.ko] undefined! This patch changes divisions of 64-bit variable so that they use 'do_div'. This patch also change some print placeholders to get rid of gcc warnings. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] m25p80: chip erase != block erase != sector eraseChen Gong2008-11-26
| | | | | | | | | | | | | | | | | This fixes broken terminology added in the "m25p80.c erase enhance" patch, which added a chip erase command but called it "block erase". There are already two block erase commands; blocks are 4KiB or 32KiB. There's also a sector erase (usually 64 KiB). Chip erase typically covers Megabytes. OPCODE_BE ==> OPCODE_CHIP_ERASE erase_block ==> erase_chip [dbrownell@users.sourceforge.net: update sector erase comments too ] Signed-off-by: Chen Gong <clumsycg@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] m25p80: fix detection of m25p16 flashesMike Frysinger2008-11-26
| | | | | | | | | | | | Commit d0e8c47c58575b9131e786edb488fd029eba443e ("m25p80.c extended jedec support") added support for extended ids but seems to break on flashes which don't have an extended id defined. If the table does not have an extid defined, then we should ignore it. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Michael Hennerich <Michael.Hennerich@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] m25p80: fix detection of SPI partsMike Frysinger2008-11-26
| | | | | | | | | | | | | | Commit d0e8c47c58575b9131e786edb488fd029eba443e ("m25p80.c extended jedec support") added support for extended ids but in the process managed to break detection of all flashes. The ext jedec id check was inserted into an if statement that lacked braces, and it did not add the required braces. As such, the detection routine always returns the first entry in the SPI flash list. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Revert "[MTD] m25p80.c code cleanup"David Woodhouse2008-10-20
| | | | | | | | | | | | | This reverts commit 75d0ee2202b5740e94e913d8a52f91c6557c4c81. Although it seems ObviouslyCorrect™, the spi_write() call uses DMA, while spi_write_then_read() does not. Since our buffer is on the stack, we must use the latter even though we don't actually want to read anything back. Pointed out by David Brownell <david-b@pacbell.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] m25p80.c extended jedec support (v2)Chen Gong2008-10-14
| | | | | | | Include missing parts of previous patch. Signed-off-by: Chen Gong <g.chen@freescale.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] m25p80.c extended jedec supportChen Gong2008-08-11
| | | | | | | | - add extended device information support - add s25sl128 device support Signed-off-by: Chen Gong <g.chen@freescale.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] m25p80.c code cleanupChen Gong2008-08-11
| | | | | | | code cleanup for m25p80.c Signed-off-by: Chen Gong <g.chen@freescale.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] m25p80.c erase enhanceChen Gong2008-08-11
| | | | | | | This patch adds an erase_block command to enhance erase operation Signed-off-by: Chen Gong <g.chen@freescale.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] m25p80: fix bug - ATmel spi flash fails to be copied toMichael Hennerich2008-07-11
| | | | | | | | | | | Atmel serial flash tends to power up with the protection status bits set. http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=4089 [michael.hennerich@analog.com: remove duplicate code] Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] m25p80.c mutex unlock fixChen Gong2008-06-06
| | | | | | | fix a mutex release bug in function m25p80_write. Signed-off-by: Chen Gong <g.chen@freescale.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] m25p80: Add Support for ATMEL AT25DF641 64-Megabit SPI FlashMichael Hennerich2008-04-25
| | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] m25p80: add FAST_READ access support to M25PxxBryan Wu2008-04-25
| | | | | Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] replace remaining __FUNCTION__ occurrencesHarvey Harrison2008-04-22
| | | | | | | | __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] m25p80: Use correct units for binary multiplesDavid Woodhouse2007-06-28
| | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] m25p80 handles more chips, uses JEDEC ids and small eraseblocksDavid Brownell2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | Update chip ID tables in m25p80 to handle more SPI flash chips, matching datasheets. All of these can use the same core operations and are newer chips that support the JEDEC "read id" instruction: - Atmel AT25 and AT26 (seven chips) - Spansion S25SL (five chips) - SST 25VF (four chips) - ST M25, M45 (five more chips) - Winbond W25X series (seven chips) That JEDEC instruction is now used, either to support a sanity check on the platform data holding board configuration data, or to determine chip type when it's not included in platform data. In fact, boards that don't need a standard partition table may not need that platform data any more. For chips that support 4KiB erase units, use that smaller block size instead of the larger size (usually 64KiB); it's less wasteful. (Tested on W25X80.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] m25p80 converted to mutexDavid Brownell2007-06-28
| | | | | | | | Convert semaphore usage in m25p80 driver to mutex; mention another kind of SPI flash chip that should be able to use this driver (given minor tweaks). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] m25p80 build fixes (with MTD debug)David Brownell2006-12-30
| | | | | | | | | | Fix build issues that show up with the m25p80 SPI flash driver when building with MTD debug enabled. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] slab: remove SLAB_KERNELChristoph Lameter2006-12-07
| | | | | | | | SLAB_KERNEL is an alias of GFP_KERNEL. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] [MTD] DEVICES: Fill more device IDs in the structure of m25p80Aubrey Lee2006-09-05
| | | | | | | | The flash_info structure has a bunch of missing fields which causes problems when actually tryin to use some ST parts as it gets detected incorrectly. Signed-off-by: Aubrey L1 <aubreylee@gmail.com> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
* [MTD] assume mtd->writesize is 1 for NOR flashesArtem B. Bityutskiy2006-06-14
| | | | Signed-off-by: Artem B. Bityitskiy
* [MTD] Fix debug printk format warning in m25p80 SPI chip driver, again.Andrew Morton2006-05-29
| | | | | Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] MTD: m25p80: fix printk format warningRandy Dunlap2006-04-11
| | | | | | | | | Fix printk format warning: drivers/mtd/devices/m25p80.c:189: warning: format '%zd' expects type 'signed size_t', but argument 6 has type 'u_int32_t' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] m25p80: printk warning fixAndrew Morton2006-03-31
| | | | | | | | | drivers/mtd/devices/m25p80.c: In function `m25p80_erase': drivers/mtd/devices/m25p80.c:189: warning: signed size_t format, different type arg (arg 6) Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] spi: misc fixesDavid Brownell2006-01-13
| | | | | | | | | | | | | This collects some small SPI patches that seem to be missing from the MM tree: - spi_butterfly kbuild hooks got dropped somehow; this restores them - quick fix for a (theoretical?) m25p80_write() oops noted by Andrew - quick fix for a potential config-specific oops for mtd_dataflash() - minor doc tweaks Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] spi: use linked lists rather than an arrayVitaly Wool2006-01-13
| | | | | | | | | | | | | | | | | | This makes the SPI core and its users access transfers in the SPI message structure as linked list not as an array, as discussed on LKML. From: David Brownell <dbrownell@users.sourceforge.net> Updates including doc, bugfixes to the list code, add spi_message_add_tail(). Plus, initialize things _before_ grabbing the locks in some cases (in case it grows more expensive). This also merges some bitbang updates of mine that didn't yet make it into the mm tree. Signed-off-by: Vitaly Wool <vwool@ru.mvista.com> Signed-off-by: Dmitry Pervushin <dpervushin@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] spi: M25 series SPI flashMike Lavender2006-01-13
This was originally a driver for the ST M25P80 SPI flash. It's been updated slightly to handle other M25P series chips. For many of these chips, the specific type could be probed, but for now this just requires static setup with flash_platform_data that lists the chip type (size, format) and any default partitioning to use. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Mike Lavender <mike@steroidmicros.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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