- 14 6月, 2006 1 次提交
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由 Artem B. Bityutskiy 提交于
Signed-off-by: Artem B. Bityitskiy
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- 10 6月, 2006 1 次提交
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由 David Woodhouse 提交于
Fix the control bit handling so it even looks like it might work, too. Bad tglx. No biscuit. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 09 6月, 2006 2 次提交
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由 Andrew Morton 提交于
Fallout from the incoming 64-bit-resource stuff: drivers/mtd/maps/physmap.c: In function 'physmap_flash_probe': drivers/mtd/maps/physmap.c:94: warning: format '%.8lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t' drivers/mtd/maps/physmap.c:94: warning: format '%.8lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t' Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
jffs2_zlib_exit() and free_workspaces() shouldn't be marked __exit because they get called in the error case from the init functions. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 03 6月, 2006 1 次提交
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由 David Woodhouse 提交于
It's used from the initfunc in case of failure too. We could actually do with an '__initexit' for this kind of thing -- when built in to the kernel, it could do with being dropped with the init text. We _could_ actually just use __init for it, but that would break if/when we start dropping init text from modules. So let's just leave it as it was for now, and mutter a little more about random 'janitorial' fixes from people who aren't paying attention to what they're doing. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 30 5月, 2006 9 次提交
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由 Joern Engel 提交于
With this patch, "root=mtd3" and "root=mtd:foo" work for a JFFS2 rootfs. Signed-off-by: NJoern Engel <joern@wh.fh-wedel.de>
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由 Joern Engel 提交于
mtdchar.c direcly copied part of struct mtd_info to userspace, thereby implicitly making it part of the ABI. With this patch, struct mtd_info is independent of the ABI and can have its fields removed, reordered, etc. Signed-off-by: NJoern Engel <joern@wh.fh-wedel.de>
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由 Joern Engel 提交于
Ram devices get the extra capability of MTD_NO_ERASE - not requiring an explicit erase before writing to it. Currently only mtdblock uses this capability. Rest of the patch is a simple text replacement. Signed-off-by: NJoern Engel <joern@wh.fh-wedel.de>
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由 Joern Engel 提交于
No mtd user should ever check for the device type. Instead, device features should be checked by the flags - if at all. As a first step towards type removal, change MTD_ROM into MTD_GENERIC_TYPE. Signed-off-by: NJoern Engel <joern@wh.fh-wedel.de>
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由 Joern Engel 提交于
MTD_XIP definition was removed in an earlier patch. This invocation was left by mistake. Signed-off-by: NJoern Engel <joern@wh.fh-wedel.de>
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由 Andrew Morton 提交于
drivers/mtd/nand/nand_base.c: In function 'nand_transfer_oob': drivers/mtd/nand/nand_base.c:909: warning: comparison of distinct pointer types lacks a cast drivers/mtd/nand/nand_base.c: In function 'nand_do_read_oob': drivers/mtd/nand/nand_base.c:1097: error: 'len' undeclared (first use in this function) drivers/mtd/nand/nand_base.c:1097: error: (Each undeclared identifier is reported only once drivers/mtd/nand/nand_base.c:1097: error: for each function it appears in.) drivers/mtd/nand/nand_base.c: In function 'nand_fill_oob': drivers/mtd/nand/nand_base.c:1411: warning: comparison of distinct pointer types lacks a cast Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
Helps if we look _inside_ the buffer, rather than adding jeb->offset to it. Doh. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 Thomas Gleixner 提交于
The raw read/write access to NAND (without ECC) has been changed in the NAND rework. Expose the new way - setting the file mode via ioctl - to userspace. Also allow to read out the ecc statistics information so userspace tools can see that bitflips happened and whether errors where correctable or not. Also expose the number of bad blocks for the partition, so nandwrite can check if the data fits into the parition before writing to it. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 29 5月, 2006 10 次提交
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由 Thomas Gleixner 提交于
Return -EUCLEAN on read when a bitflip was detected and corrected, so the clients can react and eventually copy the affected block to a spare one. Make all in kernel users aware of the change. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Hopefully the last iteration on this! The handling of out of band data on NAND was accompanied by tons of fruitless discussions and halfarsed patches to make it work for a particular problem. Sufficiently annoyed by I all those "I know it better" mails and the resonable amount of discarded "it solves my problem" patches, I finally decided to go for the big rework. After removing the _ecc variants of mtd read/write functions the solution to satisfy the various requirements was to refactor the read/write _oob functions in mtd. The major change is that read/write_oob now takes a pointer to an operation descriptor structure "struct mtd_oob_ops".instead of having a function with at least seven arguments. read/write_oob which should probably renamed to a more descriptive name, can do the following tasks: - read/write out of band data - read/write data content and out of band data - read/write raw data content and out of band data (ecc disabled) struct mtd_oob_ops has a mode field, which determines the oob handling mode. Aside of the MTD_OOB_RAW mode, which is intended to be especially for diagnostic purposes and some internal functions e.g. bad block table creation, the other two modes are for mtd clients: MTD_OOB_PLACE puts/gets the given oob data exactly to/from the place which is described by the ooboffs and ooblen fields of the mtd_oob_ops strcuture. It's up to the caller to make sure that the byte positions are not used by the ECC placement algorithms. MTD_OOB_AUTO puts/gets the given oob data automaticaly to/from the places in the out of band area which are described by the oobfree tuples in the ecclayout data structre which is associated to the devicee. The decision whether data plus oob or oob only handling is done depends on the setting of the datbuf member of the data structure. When datbuf == NULL then the internal read/write_oob functions are selected, otherwise the read/write data routines are invoked. Tested on a few platforms with all variants. Please be aware of possible regressions for your particular device / application scenario Disclaimer: Any whining will be ignored from those who just contributed "hot air blurb" and never sat down to tackle the underlying problem of the mess in the NAND driver grown over time and the big chunk of work to fix up the existing users. The problem was not the holiness of the existing MTD interfaces. The problems was the lack of time to go for the big overhaul. It's easy to add more mess to the existing one, but it takes alot of effort to go for a real solution. Improvements and bugfixes are welcome! Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Most of those macros are unused and the used ones just obfuscate the code. Remove them and fixup all users. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
The nand_oobinfo structure is not fitting the newer error correction demands anymore. Replace it by struct nand_ecclayout and fixup the users all over the place. Keep the nand_oobinfo based ioctl for user space compability reasons. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
The info structure for out of band data was copied into the mtd structure. Make it a pointer and remove the ability to set it from userspace. The position of ecc bytes is defined by the hardware and should not be changed by software. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
The platform structure was lacking an oobinfo field. The NDFC driver had some remains from another tree. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Andrew Morton 提交于
Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 27 5月, 2006 6 次提交
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由 David Woodhouse 提交于
A data node might not be in the fraglist; it could be f->metadata. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 Thomas Gleixner 提交于
We have a type pointer. Make use of it instead of the error prone nand_ids[i] reference. The NAND driver used to set default name settings from the chip ID string for the device. The feature got lost during the rework. Add it back. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
nCE setting can be done when the first command is issued to the device. We keep the deselect functionality as it makes sense to deassert nCE when the device becomes idle. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 David Woodhouse 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
This allows us to drop another pointer from the struct jffs2_raw_node_ref, shrinking it to 8 bytes on 32-bit machines (if the TEST_TOTLEN) paranoia check is turned off, which will be committed soon). Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 Thomas Gleixner 提交于
Modularize the write function and reorganaize the internal buffer management. Remove obsolete chip options and fixup all affected users. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 26 5月, 2006 1 次提交
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由 David Woodhouse 提交于
PCI is faked on these devices by SMM traps. Don't depend on that -- check for the chipset directly instead. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 25 5月, 2006 9 次提交
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由 David Woodhouse 提交于
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
Bad tglx. No biscuit. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 Thomas Gleixner 提交于
Removing readv from struct mtd_info broke block2mtd. Remove the reference and the useless default implementation. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Split the core of the read function out and implement seperate handling functions for software and hardware ECC. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Add read/write function pointers to struct nand_ecc_ctrl to prepare the modulaization of nand_read/write functions. The current implementation handles every type of ecc mode software/hardware and all kinds of strange ecc placement schemes in one switch/if construct. Thats too complex to maintain and too inflexible to expand. Modularization will also shorten the code pathes of the read/write functions. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
FLASH - especially NAND FLASH - will become less reliable and bit flips more likely. Add an ECC statistics struct to struct mtd_info to keep track of this. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Cleanup the code in the oob related functions and make use of the new NO_READRDY flag. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
The nand driver has a superflous read ready / command delay in the read functions. This was added to handle chips which have an automatic read forward. Newer chips do not have this functionality anymore. Add this option to avoid the delay / I/O operation. Mark all large page chips with the new option flag. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
The lock simplifying patch did not move the lock and waitqueue initialization into the controller allocation patch. This reinitializes waitqueue and spinlocks also for driver supplied controller stuctures. Move it into the allocation path. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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