- 13 3月, 2009 1 次提交
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由 Geert Uytterhoeven 提交于
Convert the PS3 Video RAM Storage Driver from an MTD driver to a plain block device driver. The ps3vram driver exposes unused video RAM on the PS3 as a block device suitable for storage or swap. Fast data transfer is achieved using a local cache in system RAM and DMA transfers via the GPU. The new driver is ca. 50% faster for reading, and ca. 10% for writing. Signed-off-by: NGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: NGeoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 08 1月, 2009 1 次提交
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由 Jim Paris 提交于
Add ps3vram driver, which exposes unused video RAM on the PS3 as a MTD device suitable for storage or swap. Fast data transfer is achieved using a local cache in system RAM and DMA transfers via the GPU. Signed-off-by: NVivien Chappelier <vivien.chappelier@free.fr> Signed-off-by: NJim Paris <jim@jtan.com> Acked-by: NGeoff Levand <geoffrey.levand@am.sony.com> Acked-by: NDavid Woodhouse <David.Woodhouse@intel.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 07 8月, 2008 1 次提交
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由 David Brownell 提交于
This adds a WRITE_VERIFY Kconfig option to the DataFlash driver, closely mirroring the similar NAND and ONENAND options, giving an option to disable some code that's currently always enabled. Removing this step probably saves a millisecond or so per page when writing data, which will add up quickly since these pages are small (the largest is 1 KiB). It doesn't seem to add a lot in terms of reliability, and wouldn't detect errors which crop up when transferring data to the on-chip SRAM buffer. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Acked-by: NHaavard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: NAndrew Victor <linux@maxim.org.za> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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- 02 8月, 2008 1 次提交
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由 David Brownell 提交于
Now that we can tell when we have one of the newer DataFlash chips, optionally expose the 128 bytes of OTP memory they provide. Tested on at45db642 revision B and D chips. Switch mtdchar over to a generic HAVE_MTD_OTP flag instead of adding another #ifdef for each type of chip whose driver has OTP support. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Cc: Bryan Wu <cooloney@kernel.org> Cc: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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- 05 6月, 2008 1 次提交
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由 Adrian Bunk 提交于
Once upon a time, the MTD repository was using CVS. This patch therefore removes all usages of the no longer updated CVS keywords from the MTD code. This also includes code that printed them to the user. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 25 4月, 2008 1 次提交
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由 Bryan Wu 提交于
Signed-off-by: NBryan Wu <cooloney@kernel.org> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 04 8月, 2007 1 次提交
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由 David Woodhouse 提交于
This reverts commit 340ea370. It's not needed given the other m25p80 patch (which now handles at26 "dataflash" as well as most other standard SPI flash chips), and requires a controller driver that won't be merged upstream (supplanted by drivers/spi/atmel_spi.c) ... the submitter of that at91_dataflash26.c driver concurred. Requested by David Brownell <david-b@pacbell.net> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 29 6月, 2007 1 次提交
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由 David Brownell 提交于
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: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 03 5月, 2007 1 次提交
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由 Alexander E. Patrakov 提交于
Documentation/modules.txt doesn't exist, but Documentation/kbuild/modules.txt does. Signed-off-by: Alexander E. Patrakov Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
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- 20 4月, 2007 1 次提交
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由 Jan Engelhardt 提交于
Use menuconfigs instead of menus, so the whole menu can be disabled at once instead of going through all options. Signed-off-by: NJan Engelhardt <jengelh@gmx.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 18 4月, 2007 1 次提交
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由 Hans-Jürgen Koch 提交于
Add support for AT26Fxxx dataflash devices. These devices have a quite different commandset than the AT45xxx chips, which are handled by at91_dataflash.c, so a combined driver turned out to be more ugly than useful. Tested only on AT26F004. Signed-off-by: NHans-Jürgen Koch <hjk@linutronix.de> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 01 10月, 2006 1 次提交
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由 David Howells 提交于
Make it possible to disable the block layer. Not all embedded devices require it, some can make do with just JFFS2, NFS, ramfs, etc - none of which require the block layer to be present. This patch does the following: (*) Introduces CONFIG_BLOCK to disable the block layer, buffering and blockdev support. (*) Adds dependencies on CONFIG_BLOCK to any configuration item that controls an item that uses the block layer. This includes: (*) Block I/O tracing. (*) Disk partition code. (*) All filesystems that are block based, eg: Ext3, ReiserFS, ISOFS. (*) The SCSI layer. As far as I can tell, even SCSI chardevs use the block layer to do scheduling. Some drivers that use SCSI facilities - such as USB storage - end up disabled indirectly from this. (*) Various block-based device drivers, such as IDE and the old CDROM drivers. (*) MTD blockdev handling and FTL. (*) JFFS - which uses set_bdev_super(), something it could avoid doing by taking a leaf out of JFFS2's book. (*) Makes most of the contents of linux/blkdev.h, linux/buffer_head.h and linux/elevator.h contingent on CONFIG_BLOCK being set. sector_div() is, however, still used in places, and so is still available. (*) Also made contingent are the contents of linux/mpage.h, linux/genhd.h and parts of linux/fs.h. (*) Makes a number of files in fs/ contingent on CONFIG_BLOCK. (*) Makes mm/bounce.c (bounce buffering) contingent on CONFIG_BLOCK. (*) set_page_dirty() doesn't call __set_page_dirty_buffers() if CONFIG_BLOCK is not enabled. (*) fs/no-block.c is created to hold out-of-line stubs and things that are required when CONFIG_BLOCK is not set: (*) Default blockdev file operations (to give error ENODEV on opening). (*) Makes some /proc changes: (*) /proc/devices does not list any blockdevs. (*) /proc/diskstats and /proc/partitions are contingent on CONFIG_BLOCK. (*) Makes some compat ioctl handling contingent on CONFIG_BLOCK. (*) If CONFIG_BLOCK is not defined, makes sys_quotactl() return -ENODEV if given command other than Q_SYNC or if a special device is specified. (*) In init/do_mounts.c, no reference is made to the blockdev routines if CONFIG_BLOCK is not defined. This does not prohibit NFS roots or JFFS2. (*) The bdflush, ioprio_set and ioprio_get syscalls can now be absent (return error ENOSYS by way of cond_syscall if so). (*) The seclvl_bd_claim() and seclvl_bd_release() security calls do nothing if CONFIG_BLOCK is not set, since they can't then happen. Signed-Off-By: NDavid Howells <dhowells@redhat.com> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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- 17 5月, 2006 1 次提交
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由 Martin Michlmayr 提交于
In an unrelated MTD commit, a description about the ms02-nv module got removed from Kconfig. While I personally agree with this removal, the module maintainer (Maciej W. Rozycki) would like to see it added back. In the absense of any consistency regarding Kconfig descriptions his wish should be followed. Signed-off-by: NMartin Michlmayr <tbm@cyrius.com> Acked-by: NMaciej W. Rozycki <macro@linux-mips.org> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 08 5月, 2006 1 次提交
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由 David Woodhouse 提交于
Finally putting it back how it was before Keith got at it -- yay :) Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 11 4月, 2006 1 次提交
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由 Joern Engel 提交于
Remove the blkmtd driver. - An alternative exists (block2mtd) that hasn't had bug report for > 1 year. - Most embedded people tend to use ancient kernels with custom patches from mtd cvs and elsewhere, so the 1 year warning period neither helps nor hurts them too much. - It's in the way of klibc. The problems caused by pulling blkmtd support are fairly low, while the problems caused by delaying klibc can be fairly substantial. At best, this would be a severe burden on hpa's time. Signed-off-by: NJoern Engel <joern@wohnheim.fh-wedel.de> Acked-by: NThomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 1月, 2006 1 次提交
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由 Adrian Bunk 提交于
Build kernel/intermodule.c only when required. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 14 1月, 2006 2 次提交
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由 Mike Lavender 提交于
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: NDavid Brownell <dbrownell@users.sourceforge.net> Cc: Mike Lavender <mike@steroidmicros.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 David Brownell 提交于
This is a conversion of the AT91rm9200 DataFlash MTD driver to use the lightweight SPI framework, and no longer be AT91-specific. It compiles down to less than 3KBytes on ARM. The driver allows board-specific init code to provide platform_data with the relevant MTD partitioning information, and hotplugs. This version has been lightly tested. Its parent at91_dataflash driver has been pretty well banged on, although kernel.org JFFS2 dataflash support was acting broken the last time I tried it. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 07 11月, 2005 1 次提交
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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