- 09 Jun, 2009 1 commit
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Atsushi Nemoto authored
Commit 81933046 ('mtd: Fix handling of mtdname in txx9ndfmc.c') introduced a potential memory leak. The 'mtdname' member of the private data structure is now allocated separately, but was not freed on certain error paths. Fix that, and make things simpler by _always_ allocating it separately so that we don't need 'if (mtdname != dev_name()) kfree(mtdname);'... which gets ugly now that we're doing it more than once, and more likely that we'll get it wrong some time. Signed-off-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by:
David Woodhouse <David.Woodhouse@intel.com>
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- 08 Jun, 2009 7 commits
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Nicolas Pitre authored
This is not 8 times faster than byte access, but still around 60% faster. Signed-off-by:
Nicolas Pitre <nico@marvell.com> Signed-off-by:
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Peter Korsgaard authored
Add s3c6400 support to the s3c2410 driver. The nand controller in the s3c64xx devices is compatible with the one in the s3c2412, so simply reuse that code. Signed-off-by:
Peter Korsgaard <jacmet@sunsite.dk> Acked-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Ben Dooks authored
Change to using DIV_ROUND_UP() in the timing calculation instead of blindly doing result++ Signed-off-by: -
Ben Dooks authored
Add code to deal with fractional lengths, as reported by Werner Almesberger. Re-work of his original patch. Signed-off-by: -
Michel Pollet authored
Added a flag to allow the machine code to tell the NAND subsystem that it should try to pickup a BBT from the flash, and also skip the NAND full scan at startup. Signed-off-by:
Michel Pollet <buserror@gmail.com> Signed-off-by:
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Michel Pollet authored
Converted the old comnent to kerneldoc. Signed-off-by:
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- 06 Jun, 2009 1 commit
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Stefan Roese authored
This patch adds support to handle multiple non-identical chips in one flash device tree node. It also adds concat support to physmap_of. This makes it possible to support e.g. the Intel P30 48F4400 chips which internally consists of 2 non-identical NOR chips on one die. Additionally partitions now can span over multiple chips. To describe such a chip's, multiple "reg" tuples are now supported in one flash device tree node. Here an dts example: flash@f0000000,0 { #address-cells = <1>; #size-cells = <1>; compatible = "cfi-flash"; reg = <0 0x00000000 0x02000000 0 0x02000000 0x02000000>; bank-width = <2>; partition@0 { label = "test-part1"; reg = <0 0x04000000>; }; }; Signed-off-by:Stefan Roese <sr@denx.de> Reviewed-by:
Grant Likely <grant.likely@secretlab.ca> Signed-off-by:
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- 05 Jun, 2009 31 commits
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Roel Kluin authored
with `while (max_retries-- > 0)' max_retries reaches -1 after the loop. Signed-off-by:
Roel Kluin <roel.kluin@gmail.com> Signed-off-by:
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Peter Korsgaard authored
Use the correct S3C2440_NFCONF_* macros for the mask for the 2412/2440 variants instead of the 2410 ones which use wrong bit positions. Signed-off-by:
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Kyungmin Park authored
Add bbt_wait & unlock_all as replaceable for some platform such as s3c64xx s3c64xx has its own OneNAND controller and another interface Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Rohit Hagargundgi authored
Add support for Samsung Flex-OneNAND devices. Flex-OneNAND combines SLC and MLC technologies into a single device. SLC area provides increased reliability and speed, suitable for storing code such as bootloader, kernel and root file system. MLC area provides high density and is suitable for storing user data. SLC and MLC regions can be configured through kernel parameter. [akpm@linux-foundation.org: export flexoand_region and onenand_addr] Signed-off-by:
Rohit Hagargundgi <h.rohit@samsung.com> Signed-off-by:
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Vimal Singh authored
This driver is present in the OMAP tree, now pushing it to MTD. Original author(s): Jian Zhang <jzhang@ti.com> Signed-off-by:Vimal Singh <vimalsingh@ti.com> Cc: Jian Zhang <jzhang@ti.com> Cc: Artem Bityutskiy <dedekind@infradead.org> Signed-off-by:
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Mike Frysinger authored
Signed-off-by:
Mike Frysinger <vapier@gentoo.org> Signed-off-by:
Bryan Wu <cooloney@kernel.org> Signed-off-by:
Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by:
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Mike Frysinger authored
The uclinux_ram_mtdinfo, uclinux_romfs, and uclinux_point symbols do not need to be visible outside of this module, so mark them static. Signed-off-by:
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Mike Frysinger authored
There isn't any benefit to building the uClinux MTD map as a module as the rootfs it requires in order to actually be usable is appended to the kernel image, not the module. No known system builds it this way either, so change the option to "bool". Signed-off-by:
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Mike Frysinger authored
Due to a processor anomaly (05000263 to be exact), most Blackfin parts cannot keep the embedded filesystem image directly after the kernel in RAM. Instead, the filesystem needs to be relocated to the end of memory. As such, we need to tweak the map addr/size during boot for Blackfin systems. This can be done in any early arch/board init code. Signed-off-by:
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Cliff Cai authored
The DMAs have different bit sizes on BF52x and BF54x. From the PHRM: "The 16-bit DMA Access Bus (DAB) connects the DMA controller to the on-chip peripherals, PPI, SPI, Ethernet MAC, the SPORTs, NFC, HOSTDP and the UARTs." 32-bit DMA won't work for BF52x. Signed-off-by:
Cliff Cai <cliff.cai@analog.com> Signed-off-by:
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Mike Frysinger authored
Signed-off-by:
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Simon Polette authored
Just add a new on-flash-bbt module parameter. Signed-off-by:
Simon Polette <spolette@adetelgroup.com> Signed-off-by:
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Vladimir Barinov authored
- Add support for 2KiB page size flashes - Fix page address access for large pages - Detect oob layout at runtime - handle pagesize_2k variable - Fix oob16 layout: reserve location 5 of oob area since it's used for bbt Signed-off-by:
Vladimir Barinov <vova.barinov@gmail.com> Signed-off-by:
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H Hartley Sweeten authored
Add optional callback to allow platform to initialize partitions. Static partitions on a nand device could vary depending on the size of the device. This patch allows an optional platform callback to be used to setup this partition information at runtime. Scan order is: 1) chip.part_probe_types 2) chip.set_parts 3) chip.partitions 4) full mtd device (fallback for no partitions) Some of the existing nand drivers could possibly be replaced by the plat_nand driver by using this patch. These include autcpu12.c and ts7250.c drivers. Signed-off-by:
H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by:
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H Hartley Sweeten authored
Add optional probe and remove callbacks to the plat_nand driver. Some platforms may require additional setup, such as configuring the memory controller, before the nand device can be accessed. This patch provides an optional callback to handle this setup as well as a callback to teardown the setup. Signed-off-by:
Alexander Clouter <alex@digriz.org.uk> Signed-off-by:
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Shane McDonald authored
The RAMROOT function was a successful but non-portable attempt to append the root filesystem to the end of the kernel image. The preferred and portable solution is to use an initramfs instead. The only user of this function was the msp71xx configuration in the MIPS architecture; as the use of the RAMROOT has been removed from that configuration, there are no more users, so this code can be removed. Signed-off-by:
Shane McDonald <mcdonald.shane@gmail.com> Signed-off-by:
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Mika Korhonen authored
Add missing __devexit_p wrapper and no more mark shutdown with __devexit. Fixes build in configurations where devexit functions get discarded. Signed-off-by:
Mika Korhonen <mika.j.korhonen@gmail.com> Signed-off-by:
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Lennert Buytenhek authored
Signed-off-by:
Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by:
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Daniel Ribeiro authored
This patch allows otpinfo for CFI >= 1.0 and burst read for CFI >= 1.1. references: 1.0: http://www.datasheetcatalog.org/datasheets2/81/816884_1.pdf 1.1: http://milkymist.org/doc/MT28F640J3.pdf http://www.delorie.com/agenda/specs/29066709.pdfSigned-off-by:
Daniel Ribeiro <drwyrm@gmail.com> Acked-by:
Nicolas Pitre <nico@cam.org> Signed-off-by:
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Daniel Ribeiro authored
This chip reports CFI 1.3, but the CFI PRI is like CFI 1.1. Add a quirk to pass probe on this chip. This patch depends on "MTD: CFI 1.0 and CFI 1.1" Signed-off-by:
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Alexander Clouter authored
This patch adds (write|read)_buf callbacks to plat_nand. The NAND on the TS-7800 provisioned by the FPGA allows readw() and readl() to be used which gives a 2.5x speed up. To be able to use this from the plat_nand driver a hook for read_buf (and also write_buf whilst we are in there) need to be made available. This patch adds the hook. Signed-off-by:
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Michał Mirosław authored
Add SST39SF040 chip (like SST39SF020A but bigger - 4Mbit). Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by:
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David Brownell authored
Remove some legacy code from the davinci_nand driver, which made cmdlinepart ignore the the MTD ID passed to it. Boards can have multiple NAND chips, and some do (like the DM357 EVM), so this dated hack is undesirable. Correct labels are like "davinci_nand.0" (for chipselect 0). Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Adrian Hunter authored
In addition to adding the Numonyx manufacturer code, this patch also ensures 'sync. write' is disabled when reading identification data - something that the Numonyx chip objects to, but the Samsung chip seems to ignore. Signed-off-by:
Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by:
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Matthieu CASTET authored
this patch add m45pe10 [1] chip support to the m25p80 driver. [1] http://www.numonyx.com/Documents/Datasheets/M45PE10.pdfSigned-off-by:
Matthieu CASTET <matthieu.castet@parrot.com> Signed-off-by:
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Magnus Lilja authored
Make sure to pass the same dev_id data to free_irq() that was used when calling request_irq(), otherwise we get a warning about freeing an already free IRQ. Signed-off-by:
Magnus Lilja <lilja.magnus@gmail.com> Signed-off-by:
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Vimal Singh authored
Type of 'byte_addr' needes to be 'unsigned int' for 512 byte ECC support. Signed-off-by:
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David Brownell authored
Minimal support for the 4-bit ECC engine found on DM355, DM365, DA830/OMAP-L137, and similar recent DaVinci-family chips. This is limited to small-page flash for now; there are some page layout issues for large page chips. Note that most boards using this engine (like the DM355 EVM) include 2GiB large page chips. Sanity tested on DM355 EVM after swapping the socketed NAND for a small-page one. Signed-off-by:
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David Brownell authored
Make the DaVinci NAND driver require platform_data with board-specific configuration. We can't actually do any kind of sane job of configuring it otherwise. Also fix the comment about picking the "best" ECC mode. We can't do those any more; that relied on knowing what kind of CPU we're using (they don't all support 4-bit ECC), and current policy is that drivers not have cpu_is_*() checks. Signed-off-by:
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David Brownell authored
Resolve issue noted by Sneha: when computing oobavail from the list of free areas in the OOB, don't assume there will always be an unused slot at the end. With ECC_HW_SYNDROME and 4KiB page chips, it's fairly likely there *won't* be one. Signed-off-by:
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Artem Bityutskiy authored
This file does not define any kernel-userspace API, all it does it defines few helpers for userspace. Instead, userspace should have a private copy of this file. The main (if not the only) user is the mtd-utils package, but it already has a private copy of this file. This patch also removes references to 'jffs2-user.h' from 'Kbuild' and MAINTAINERS' files. Signed-off-by:
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