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2009-01-05[MTD] LPDDR qinfo probing.Alexey Korolev
LPDDR flash chips are based on completely new kind of chips probing. Device capabilities are available via special request. We sent field request command which contains Major and Minor numbers - and recieve corresponend value. All requests are performed within PFOW window. Detailed information about qinfo records can be found here: http://www.numonyx.com/Documents/Datasheets/DS-315768_Velocity-Discrete.pdf Signed-off-by: Alexey Korolev <akorolev@infradead.org> Acked-by: Jared Hulbert <jaredeh@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05[MTD] [NAND] pxa3xx: convert from ns to clock ticks more accuratelyMatt Reimer
The various fields in NDTR{01} are in units of clock ticks minus one, but the ns2cycle macro mistakenly adds one, inflating the number of clock ticks and making it impossible to set any of these fields to zero. Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05[MTD] [NAND] pxa3xx: fix non-page-aligned readsMatt Reimer
Reads from non-page-aligned addresses were broken because while the address to read from was correctly written to NDCB*, a full page was always read. Fix this by ignoring the column and only using the page address. I suspect this whole-page behavior is due to the controller's need to read the entire page in order to generate correct ECC. In the non-ECC case this could be optimized to use the column address, and to set the read length to what is being requested rather than the length of an entire page. Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05[MTD] [NAND] fix nandsim sched.h referencesRandy Dunlap
Fix sched.h references: build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1326: error: dereferencing pointer to incomplete type build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1326: error: 'PF_MEMALLOC' undeclared (first use in this function) build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1328: error: dereferencing pointer to incomplete type build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1335: error: dereferencing pointer to incomplete type build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1335: error: 'PF_MEMALLOC' undeclared (first use in this function) build-r7149.out:make[4]: *** [drivers/mtd/nand/nandsim.o] Error 1 Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05[MTD] [NAND] alauda: use USB API functions rather than constantsJulia Lawall
This set of patches introduces calls to the following set of functions: usb_endpoint_dir_in(epd) usb_endpoint_dir_out(epd) usb_endpoint_is_bulk_in(epd) usb_endpoint_is_bulk_out(epd) usb_endpoint_is_int_in(epd) usb_endpoint_is_int_out(epd) usb_endpoint_num(epd) usb_endpoint_type(epd) usb_endpoint_xfer_bulk(epd) usb_endpoint_xfer_control(epd) usb_endpoint_xfer_int(epd) usb_endpoint_xfer_isoc(epd) In some cases, introducing one of these functions is not possible, and it just replaces an explicit integer value by one of the following constants: USB_ENDPOINT_XFER_BULK USB_ENDPOINT_XFER_CONTROL USB_ENDPOINT_XFER_INT USB_ENDPOINT_XFER_ISOC An extract of the semantic patch that makes these changes is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r1@ struct usb_endpoint_descriptor *epd; @@ - ((epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) == - \(USB_ENDPOINT_XFER_CONTROL\|0\)) + usb_endpoint_xfer_control(epd) @r5@ struct usb_endpoint_descriptor *epd; @@ - ((epd->bEndpointAddress & \(USB_ENDPOINT_DIR_MASK\|0x80\)) == - \(USB_DIR_IN\|0x80\)) + usb_endpoint_dir_in(epd) @inc@ @@ #include <linux/usb.h> @depends on !inc && (r1||r5)@ @@ + #include <linux/usb.h> #include <linux/usb/...> // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-05Merge branch 'master' of ↵David Woodhouse
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: arch/arm/mach-pxa/corgi.c arch/arm/mach-pxa/poodle.c arch/arm/mach-pxa/spitz.c
2009-01-02Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6Linus Torvalds
* 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6: UBI: fix checkpatch.pl warnings UBI: simplify PEB protection code UBI: prepare for protection tree improvements UBI: return -ENOMEM upon failing vmalloc UBI: document UBI ioctls UBI: handle write errors in WL worker UBI: fix error path UBI: some code re-structuring UBI: fix deadlock UBI: fix warnings when debugging is enabled
2008-12-28UBI: fix checkpatch.pl warningsArtem Bityutskiy
Just minor indentation and "over 80 characters" fixes. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-23[MTD] struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers
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>
2008-12-19[MTD] fix m25p80 64-bit divisionsArtem Bityutskiy
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>
2008-12-19[MTD] fix dataflash 64-bit divisionsArtem Bityutskiy
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: "__udivdi3" [drivers/mtd/devices/mtd_dataflash.ko] undefined! ERROR: "__umoddi3" [drivers/mtd/devices/mtd_dataflash.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> Cc: David Brownell <david-b@pacbell.net> Cc: Nicolas Pitre <nico@cam.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-16[ARM] MX3: add NAND supportSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-12-16UBI: simplify PEB protection codeXiaochuan-Xu
UBI has 2 RB-trees to implement PEB protection, which is too much for simply prevent PEB from being moved for some time. This patch implements this using lists. The benefits: 1. No need to allocate protection entry on each PEB get. 2. No need to maintain balanced trees and walk them. Signed-off-by: Xiaochuan-Xu <xiaochuan-xu@cqu.edu.cn> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-15Merge branch 'omap3-upstream' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel
2008-12-15UBI: prepare for protection tree improvementsXiaochuan-Xu
This patch modifies @struct ubi_wl_entry and adds union which contains only one element so far. This is just a preparation for further changes which will kill the protection tree and make UBI use a list instead. Signed-off-by: Xiaochuan-Xu <xiaochuan-xu@cqu.edu.cn> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-13Merge git://git.marvell.com/orion into develRussell King
2008-12-13[ARM] netwinder: clean up GPIO namingRussell King
Netwinder was using gpio_xxx names which could clash with the GPIO layer. Add a 'nw_' prefix to ensure that these remain separate. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-10ARM: OMAP: use gpio_to_irqDavid Brownell
Have most uses of OMAP_GPIO_IRQ() use gpio_to_irq() instead. Calls used for table initialization are left alone, at least this time around. (This patch is for code in both the OMAP tree and mainline.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-10ARM: OMAP: switch to gpio_direction_inputDavid Brownell
More switchover to the cross-platform GPIO interface: use gpio_direction_input(), not an OMAP-specific call. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-10ARM: OMAP: switch to standard gpio get/set callsDavid Brownell
This patch replaces some legacy OMAP GPIO calls with the "new" (not really, any more!) calls that work on most platforms. The calls addressed by this patch are the simple ones to get and set values ... for code that's in mainline, including the implementations of those calls. Except for the declarations and definitions of those calls, all of these changes were performed by a simple SED script. Plus, a few "if() set() else set()" branches were merged by hand. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-10[MTD] [NAND] Set the fsl elbc ECCM according the settings in bootloader.Jason Jin
The ECCM maybe set in bootloader, Get ECCM settings from the bootloader, can avoid the image written by bootloader cannot read out by kernel. But the limitation of doing it this way is that, it could break large page NAND if it is written with NAND disabled in u-boot and read with NAND enabled, or vice versa. Signed-off-by: Jason Jin <Jason.jin@freescale.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] [NAND] remove excess kernel-doc notationRandy Dunlap
Delete extra kernel-doc notation for struct fields and function parameters that don't exist: Warning(include/linux/mtd/nand.h:428): Excess struct/union/enum/typedef member 'wq' description in 'nand_chip' Warning(include/linux/mtd/nand.h:428): Excess struct/union/enum/typedef member 'datbuf' description in 'nand_chip' Warning(include/linux/mtd/nand.h:428): Excess struct/union/enum/typedef member 'oobbuf' description in 'nand_chip' Warning(include/linux/mtd/nand.h:428): Excess struct/union/enum/typedef member 'oobdirty' description in 'nand_chip' Warning(include/linux/mtd/nand.h:428): Excess struct/union/enum/typedef member 'data_poi' description in 'nand_chip' Warning(drivers/mtd/nand/nand_base.c:2527): Excess function parameter 'maxchips' description in 'nand_scan_tail' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] physmap: fix leak of memory returned by parse_mtd_partitionsAtsushi Nemoto
The mtd partition parser returns an allocated pointer array of mtd_partition. The caller must free it. The array is used only for add_mtd_partitions(), so free it just after the call. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] drivers/mtd/maps/nettel.c: use ARRAY_SIZEJulia Lawall
ARRAY_SIZE is more concise to use when the size of an array is divided by the size of its type or the size of its first element. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @i@ @@ #include <linux/kernel.h> @depends on i using "paren.iso"@ type T; T[] E; @@ - (sizeof(E)/sizeof(E[...])) + ARRAY_SIZE(E) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] physmap: make physmap compat explicitMike Frysinger
The current method for always showing physmap compat address, size, and width is a bit confusing. If length is set to 0, then the address and width are still shown but silently unused. The physmap code itself already has logic which sets compat based on length, so just pull that out and into the Kconfig to make everything clear. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Bryan Wu <Bryan.Wu@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10Merge branch 'misc/mtd/sharpsl-nand' of ↵David Woodhouse
git://git.kernel.org/pub/scm/linux/kernel/git/lumag/tosa-2.6
2008-12-10[MTD] remove private wrapper of endian helpers in rfd_ftl.cHarvey Harrison
Base versions handle constant folding just fine. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10MTD: add MTD tests to compilationArtem Bityutskiy
Add MTD tests to Kconfig and Makefiles. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-10MTD: tests: add mtd_torturetestArtem Bityutskiy
This test is designed to work for very long time and it tries to wear few eraseblocks. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-10[MTD] Remove more strange u_intxx_t typesDavid Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Remove strange u_int32_t types from FTLDavid Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] [NAND] Remove strange u_int64_t types from nandsimDavid Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] update internal API to support 64-bit device sizeAdrian Hunter
MTD internal API presently uses 32-bit values to represent device size. This patch updates them to 64-bits but leaves the external API unchanged. Extending the external API is a separate issue for several reasons. First, no one needs it at the moment. Secondly, whether the implementation is done with IOCTLs, sysfs or both is still debated. Thirdly external API changes require the internal API to be accepted first. Note that although the MTD API will be able to support 64-bit device sizes, existing drivers do not and are not required to do so, although NAND base has been updated. In general, changing from 32-bit to 64-bit values cause little or no changes to the majority of the code with the following exceptions: - printk message formats - division and modulus of 64-bit values - NAND base support - 32-bit local variables used by mtdpart and mtdconcat - naughtily assuming one structure maps to another in MEMERASE ioctl Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10MTD: nandsim: use less RAMAlexey Korolev
Nandsim consumes ~2x more RAM than the density of simulated device. It becomes critical if we need to simulate 256MB NAND and run stress tests on it. We investigated the reasons. nandsim allocates space for pages using kmalloc function. The size of LP nand page is 2112 bytes. kmalloc gets space from slab pools by chunks 2^n. So if we need to kmalloc 2112 bytes, 4096 bytes will be consumed by system. The best way to avoid this issue would be using kmem_cache allocations. AFAIK this mechanism specially designed to handle cases when arrays of allocations are used. Signed-off-by: Alexey Korolev <akorolev@infradead.org> Tested-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10MTD: nandsim: add option to use a file to cache pagesAdrian Hunter
Add a new module parameter 'cache_file' which causes nandsim to use that file instead of memory to cache nand data. Using a file allows the simulation of NAND that is bigger than the available memory. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10MTD: nandsim: suppress unnecessary warningAdrian Hunter
nand_base sometimes reads only 2 bytes of a 4 byte id. It is OK. Do not print a warning in that case. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make init_impa7 staticDmitri Vorobiev
The function init_impa7 does not need to be global, and this patch makes it static by adding the needed keyword to drivers/mtd/maps/impa7.c. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make init_redwood_flash function staticDmitri Vorobiev
The function init_redwood_flash is needlessly defined global, make it static by this patch. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make init_msp_flash function staticDmitri Vorobiev
The function init_msp_flash, which is not used outside of drivers/mtd/maps/pmcmsp-flash.c, can become static. This patch adds the needed keyword. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make h720x_mtd_init function staticDmitri Vorobiev
The function h720x_mtd_init is not used outside of the file drivers/mtd/maps/h720x-flash.c and can therefore become static. This patch adds the necessary keyword. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make init_mbx function staticDmitri Vorobiev
The function init_mbx can become static, because it is not used outside the file drivers/mtd/maps/mbx860.c. This patch adds the needed keyword. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make the function init_vmax301 staticDmitri Vorobiev
The function init_vmax301 is needlessly defined global in drivers/mtd/maps/vmax301.c, and this patch makes it static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make init_fortunet function staticDmitri Vorobiev
The symbol init_fortunet is needlessly defined global in drivers/mtd/maps/fortunet.c. Make it static and clean up the kernel global namespace. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make alchemy_mtd_init function staticDmitri Vorobiev
The symbol alchemy_mtd_init does not need to be global, so make it static in drivers/mtd/maps/alchemy-flash.c. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make ipaq_mtd_init function staticDmitri Vorobiev
The symbol ipaq_mtd_init is not used anywhere outside of drivers/mtd/maps/ipaq-flash.c, so make it static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make init_dbox2_flash staticDmitri Vorobiev
The symbol init_dbox2_flash is not used outside of the file drivers/mtd/maps/dbox2-flash.c, so make it static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make init_flagadm function staticDmitri Vorobiev
The module init function init_flagadm does not need to be global, so add the needed keyword to drivers/mtd/maps/cfi_flagadm.c. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make init_oct5066 function staticDmitri Vorobiev
The function init_oct5066 is needlessly defined global in drivers/mtd/maps/octagon-5066.c. Make it static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make the init_edb7312nor function staticDmitri Vorobiev
The init_edb7312nor function is needlessly defined global in drivers/mtd/maps/edb7312.c, and this patch makes it static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10[MTD] Make init_sbc82xx_flash function staticDmitri Vorobiev
The function init_sbc82xx_flash is needlessly defined global in drivers/mtd/maps/wr_sbc82xx_flash.c, and this patch makes it static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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