- 25 5月, 2011 40 次提交
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由 Jamie Iles 提交于
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
MTD is now always build with partitioning support so this can be removed. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Cc: Cc: David Woodhouse <dwmw2@infradead.org> Cc: Artem Bityutskiy <dedekind1@gmail.com> Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com> Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
If we don't have OpenFirmware enabled then provide a stub of_mtd_parse_partitions that returns no partitions so drivers don't need ifdeffery inside. Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
To prepare for the removal of add_mtd_device and add_mtd_partitions(), introduce mtd_device_register(). This will create partitions if they are supplied or register the whole device if there are no partitions. Once all drivers are converted to use mtd_device_register(), add_mtd_device() and add_mtd_partitions() will be made internal only. v2: move kerneldoc to implementation file and fixup some kerneldoc warnings. Artem: tweak comments: remove junk tabs, use dots consistently. Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
There are very few situations where MTD partitioning is not required, and the benefit in code size reduction by making this configurable does not warrant the level of ifdeffery needed. Artem: this patch is not final - we just make sure that mtd partitions are always compiled in, and at the end of the series we'll kill MTD_PARTITIONS altogether. Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Wanlong Gao 提交于
Remove the spare spaces in the head of the lines. Signed-off-by: NWanlong Gao <wanlong.gao@gmail.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Maxin B. John 提交于
This patch fixes the possible null dereference of the variable "oinfo" Thanks to Coverity for spotting this. Signed-off-by: NMaxin B. John <john.maxin@nokia.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Tadashi Abe 提交于
This is a trivial patch which removes unnecessary assignment of chip->state in put_chip(). It's duplicated. Signed-off-by: NTadashi Abe <tabe@mvista.com> Acked-by: NJoakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Tadashi Abe 提交于
cfi erase command hangs up when erase and read contention occurs. If read runs at the same address as erase operation, read issues Erase-Suspend via get_chip() and the erase goes into sleep in wait queue. But in this case, read operation exits by time-out without waking it up. I think the other variants (0001, 0020 and lpddr) have the same problem too. Tested and verified the patch only on CFI-0002 flash, though. Signed-off-by: NTadashi Abe <tabe@mvista.com> Acked-by: NJoakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Wanlong Gao 提交于
'get_mtd_device_nm()' has a piece of code which equivalent to what '__get_mtd_device()' does - remove this duplicated code and use ''__get_mtd_device()' instead. Artem: changed commit message. Artem: while on it, remove an unnecessary extra empty line Signed-off-by: NWanlong Gao <wanlong.gao@gmail.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Artem Bityutskiy 提交于
Currently when we register partitions in 'parse_mtd_partitions()' we accept the list of parsers we should try. And if one of the parsers was not found we print a message. Well, first of all this whole idea is bad - look at how many 'part_probes' and 'part_probe_types' variables we have - nearly every driver defines one. Instead, we should just go through all registered parsers all the time. But this needs to be worked on separately. This patch makes life of MTD partitions' users a bit simpler and allows them to safely request parsers which have not been registered - 'parse_mtd_partitions()' will not print a "not available" message in this case. The point is that drivers do not have to do things like this any longer: static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", "afs", NULL }; but can simply do like this: static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", "afs", NULL }; Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Alexey Dobriyan 提交于
->read_proc interface is going away, switch to seq_file. Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Acked-by: NMike Frysinger <vapier@gentoo.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Kishore Kadiyala 提交于
When reading/writing a subpage (When HW ECC is not available/enabled) for number of bytes not aligned to 4, the mis-aligned bytes are handled first (by cpu copy method) before enabling the Prefetch engine to/from 'p'(start of buffer 'buf'). Then it reads/writes rest of the bytes with the help of Prefetch engine, if available, or again using cpu copy method. Currently, reading/writing of rest of bytes, is not done correctly since its trying to read/write again to/from begining of buffer 'buf', overwriting the mis-aligned bytes. Read & write using prefetch engine got broken in commit '2c01946c'. We never hit a scenario of not getting 'gpmc_prefetch_enable' call success. So, problem did not get caught up. Signed-off-by: NKishore Kadiyala <kishore.kadiyala@ti.com> Signed-off-by: NVimal Singh <vimal.newwork@gmail.com> Reported-by: NBryan DE FARIA <bdefaria@adeneo-embedded.com> Cc: stable@kernel.org [2.6.35+] Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Mike Frysinger 提交于
The previous section mismatch fix for this driver wasn't entirely correct. The sst25l_flash_info array is now used in the devinit probe func, but is marked as initdata, so building results in the warning: WARNING: drivers/mtd/devices/sst25l.o(.devinit.text): Section mismatch in reference from the function sst25l_probe() to the variable .init.data:sst25l_flash_info Further, the remove func should be devexit rather than exit to match the probe func. Signed-off-by: NMike Frysinger <vapier@gentoo.org> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Kevin Cernekee 提交于
S25FL512S = 64MiB single die, same family as S25FL256S S70FL01GS = 2x S25FL512S dies in one package (separate chip selects) These devices are not sampling yet, but they are expected to be very similar to S25FL256S, which has been tested. Signed-off-by: NKevin Cernekee <cernekee@gmail.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Kevin Cernekee 提交于
These are 32MiB parts which use a slightly different 4-byte enable sequence from Macronix. Default to the Spansion 4-byte scheme in set_4byte(), as it is more likely to be copied by other vendors. Signed-off-by: NKevin Cernekee <cernekee@gmail.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Kevin Cernekee 提交于
Use the manufacturer ID names from cfi.h instead of hard-coding hex constants. Introduce a JEDEC_MFR macro for clarity. Signed-off-by: NKevin Cernekee <cernekee@gmail.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Kevin Cernekee 提交于
Signed-off-by: NKevin Cernekee <cernekee@gmail.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
Not all configurations of the Denali controller support 4 banks. The controller can support between 1 and 16 banks. Detect this from the design features register. Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
The controller has interrupt enable/status register pairs for each bank (along with ECC and status registers) that differ only in address offset. Rather than providing definitions for each register, make the address a macro so that it scales for devices with different numbers of banks. Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jamie Iles 提交于
Rather than using the PCI specific DMA API, convert to the generic DMA API so that we can use the Denali NAND controller on other bus types. Signed-off-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 john.maxin@nokia.com 提交于
Coverity has reported that inside the function "onenand_block_by_block_erase()" in onenand_base.c, we should add a check to prevent the incrementing of possible NULL value for "region" Signed-off-by: NMaxin B. John <john.maxin@nokia.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Artem Bityutskiy 提交于
In commit c7b28e25 the initialization of the backblockbits was accidentally removed. This patch returns it back, because otherwise some NAND drivers are broken. This problem was reported by "Saxena, Parth <parth.saxena@ti.com>" here: http://lists.infradead.org/pipermail/linux-mtd/2011-April/035221.htmlReported-by: NSaxena, Parth <parth.saxena@ti.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Tested-by: NSaxena, Parth <parth.saxena@ti.com> Acked-by: NSaxena, Parth <parth.saxena@ti.com> Acked-by: NBrian Norris <computersforpeace@gmail.com> Cc: stable@kernel.org [2.6.36+] Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Felix Radensky 提交于
This patch extends NDFC driver to support all 4 chip selects available in NDFC NAND controller. Tested on custom 460EX board with 2 chip select NAND device. Artem: white-space cleanups Signed-off-by: NFelix Radensky <felix@embedded-sol.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Grant Erickson 提交于
Replace direct call to kmalloc for a potentially large, contiguous buffer allocation with one to mtd_kmalloc_up_to which helps ensure the operation can succeed under low-memory, highly- fragmented situations albeit somewhat more slowly. Signed-off-by: NGrant Erickson <marathon96@gmail.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Grant Erickson 提交于
Replace direct call to kmalloc for a potentially large, contiguous buffer allocation with one to mtd_kmalloc_up_to which helps ensure the operation can succeed under low-memory, highly- fragmented situations albeit somewhat more slowly. Signed-off-by: NGrant Erickson <marathon96@gmail.com> Tested-by: NBen Gardiner <bengardiner@nanometrics.ca> Tested-by: NStefano Babic <sbabic@denx.de> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Grant Erickson 提交于
Introduce a common function to handle large, contiguous kmalloc buffer allocations by exponentially backing off on the size of the requested kernel transfer buffer until it succeeds or until the requested transfer buffer size falls below the page size. This helps ensure the operation can succeed under low-memory, highly- fragmented situations albeit somewhat more slowly. Artem: so this patch solves the problem that the kernel tries to kmalloc too large buffers, which (a) may fail and does fail - people complain about this, and (b) slows down the system in case of high memory fragmentation, because the kernel starts dropping caches, writing back, swapping, etc. But we do not really have to allocate a lot of memory to do the I/O, we may do this even with as little as one min. I/O unit (NAND page) of RAM. So the idea of this patch is that if the user asks to read or write a lot, we try to kmalloc a lot, with GFP flags which make the kernel _not_ drop caches, etc. If we can allocate it - good, if not - we try to allocate twice as less, and so on, until we reach the min. I/O unit size, which is our last resort allocation and use the normal GFP_KERNEL flag. Artem: re-write the allocation function so that it makes sure the allocated buffer is aligned to the min. I/O size of the flash. Signed-off-by: NGrant Erickson <marathon96@gmail.com> Tested-by: NBen Gardiner <bengardiner@nanometrics.ca> Tested-by: NStefano Babic <sbabic@denx.de> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Felix Radensky 提交于
Currently mtdconcat is broken for NAND. An attemtpt to create JFFS2 filesystem on concatenation of several NAND devices fails with OOB write errors. This patch fixes that problem. Signed-off-by: NFelix Radensky <felix@embedded-sol.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Cc: stable@kernel.org Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jan Weitzel 提交于
nand_scan calls nand_scan_tail and here we got a ecc.layout and calculate oobavail for this layout. After calling nand_scan, we change the layout pointer if OMAP_ECC_HAMMING_CODE_HW_ROMCODE is set. This results in not calcluated oobavail. Mountig as jffs2 is not possible. To fix that nand_scan has to split up in nand_scan_ident and nand_scan_tail setting ecc.layout between these calls. So nand_scan_tail calculates oobvail for the used layout. This is also done in serveral other platforms. Signed-off-by: NJan Weitzel <j.weitzel@phytec.de> Reviewed-by: NVimal Singh <vimal.newwork@gmail.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Artem Bityutskiy 提交于
The 'blktrans_open()' does not handle possible '__get_mtd_device()' failures because it does not check the error code. Moreover, the 'dev->tr->open()' failures are not handled correctly because in this case the function just goes ahead and gets the mtd device, then returns an error. But Instead, it should _not_ try to get the mtd device, then it should put back the module and the kref. This patch fixes the issue. Note, I only compile-tested it. This patch was inspired by a bug report about a similar issue in 2.6.34 kernels sent by Mike Turner <admin@islandsoftware.co.uk> to the MTD mailing list: http://lists.infradead.org/pipermail/linux-mtd/2011-April/034980.htmlSigned-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Hans-Christian Egtvedt 提交于
Including linux/dmaengine.h fixes the missing definition of the enum dma_ctrl_flags type used in atmel_nand_dma_op function. Signed-off-by: NHans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jiri Pinkava 提交于
Chip deselection is already done in nand_release_device. So only duplicate code. Signed-off-by: NJiri Pinkava <jiri.pinkava@vscht.cz> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Jiri Pinkava 提交于
Current implementation of s3c2410_nand_select_chip call clk_disable every time when chip = -1 (de-select). This happend multiple times even if chip was already de-selected. This causes disabling clock even if they are already disabled and due to nature of clock subsytem implementation this causes nand clock to be disabled and newer enabled again. Signed-off-by: NJiri Pinkava <jiri.pinkava@vscht.cz> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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