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* [MTD] [MAPS] Support for BIOS flash chips on the nvidia ck804 southbridgeDave Olsen2006-11-283-0/+366
| | | | | | | Add support for accessing BIOS flash chips connected to the NVIDIA ck804 southbridge. Signed-off-by: Ryan Jackson <rjackson@lnxi.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] [NAND] Fix endianess bug in ndfc.cStefan Roese2006-11-281-1/+1
| | | | | | | | | | The writel() call accidentally clears all bits in the NDFC_CCR register (endianess problem). Now __raw_writel() is used instead. Tested on Bamboo with NAND on chip select 0 and chip select 1. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] make drivers/mtd/cmdlinepart.c:mtdpart_setup() staticAdrian Bunk2006-11-281-1/+1
| | | | | | | This patch makes the needlessly global mtdpart_setup() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] [NAND] rtc_from4.c: use lib/bitrev.cAdrian Bunk2006-11-282-42/+3
| | | | | | | | This patch converts drivers/mtd/nand/rtc_from4.c to use the new lib/bitrev.c Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] NAND: Fix nand_default_mark_blockbad() when flash-based BBT disabledRicard Wanderlöf2006-10-261-1/+1
| | | | | | | | | | | | | | | | | When a flash-based BBT is not used, nand_default_mark_blockbad() is supposed to mark the block bad in the oob. However, it sets the wrong length variable so that no bad block marker is in fact written. This patch attempts to rectify that. (As note, it seems to be that logically, it shouldn't be necessary to set both length variables, as one appears to be for the main buffer, and one for the oob buffer, but this is how it is done in several places, including the code for the mtd character device MEMWRITEOOB and MEMREADOOB ioctls. I'm not sure if this is a temporary solution during some rework of the mtd infrastructure, or whether there is a deeper thought here.) Signed-off-by: Ricard Wanderlöf <ricardw@axis.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] NAND: Correct setting of chip->oob_poi OOB bufferDavid Woodhouse2006-10-221-1/+1
| | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] NAND: Combined oob buffer so it's contiguous with dataDavid Woodhouse2006-10-211-10/+5
| | | | | | | | | | Ditch the separate oobrbuf and oobwbuf fields from the chip buffers, and use only a single buffer immediately after the data. This accommodates NAND controllers such as the OLPC CAFÉ chip, which can't do scatter/gather DMA so needs the OOB buffer to be contiguous with the data, for both read and write. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* Merge branch 'master' of ↵David Woodhouse2006-10-212-2/+2
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * [PATCH] mtd: remove several bogus casts to void * in iounmap() argumentAl Viro2006-10-102-2/+2
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [MTD] NAND: nandsim: support subpage writeArtem Bityutskiy2006-10-211-1/+3
| | | | | | | | | | | | | | | | As flash cannot do 0->1 bit transitions when programming, do not do this in the simulator too. This makes nandsim able to accept subpage writes. Signed-off-by: Artem Bityutskiy <dedekind@infradead.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] NOR: leave Intel chips in read-array mode on suspendDavid Anders2006-10-211-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | During some testing with several samsung s3c24xx based devices it was discovered that often the cfi_cmdset_0001.c would not leave the chip in read-array mode on suspend. this is an issue if the same flash chip is used for the bootloader that needs to be read on resume. Signed-off-by: David Anders <danders@amltd.com> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] core: trivial comments fixArtem Bityutskiy2006-10-211-6/+6
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <dedekind@infradead.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] NAND: nandsim coding style fixVijay Kumar2006-10-211-38/+19
| | | | | | | | | | | | | | | | Removes line break after return type in function definitions, to be consistent with the Linux coding style. Signed-off-by: Vijay Kumar <vijaykumar@bravegnu.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] NAND: nandsim page-wise allocation (2/2)Vijay Kumar2006-10-211-24/+138
| | | | | | | | | | | | | | | | | | | | For page wise allocation, an array of flash page pointers is allocated during initialization. The flash pages are themselves allocated when a write occurs to the page. The flash pages are deallocated when they are erased. Signed-off-by: Vijay Kumar <vijaykumar@bravegnu.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] NAND: nandsim page-wise allocation (1/2)Vijay Kumar2006-10-211-22/+0
| | | | | | | | | | | | | | | | This patch removes code that does chip mapping. The chip mapping code is no longer used. Signed-off-by: Vijay Kumar <vijaykumar@bravegnu.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] MAPS: Remove ITE 8172G and Globespan IVR MTD supportYoichi Yuasa2006-10-211-120/+1
| | | | | | | | | | | | | | | | | | This patch has removed ITE 8172G and Globespan IVR MTD support. These boards support have already been removed. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: Ralf Bächle <ralf@linux-mips.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] mtdchar: Fix MEMGETOOBSEL and ECCGETLAYOUT ioctlsRicard Wanderlöf2006-10-211-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | 1. The ECCGETLAYOUT ioctl copy_to_user() call has a superfluous '&' causing the resulting information to be garbage rather than the intended mtd->ecclayout. 2. The MEMGETOOBSEL misses copying mtd->ecclayout->eccbytes so the resulting field of the returned structure contains garbage. Signed-off-by: Ricard Wanderlöf <ricardw@axis.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] NAND: AT91 NAND driverAndrew Victor2006-10-213-0/+228
| | | | | | | | | | | | | | | | | | | | This version only differs from version posted by Savin Zlobec (20 Jun 2006) in that the AT91RM9200-specific chip-select / bus setup code has been moved from the at91_nand.c driver into the processor-specific file. From: Savin Zlobec <savin@epico.si> Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] MAPS: esb2rom: use hotplug safe interfacesAlan Cox2006-10-211-3/+4
| | | | | | | | | | | | | | | | | | Fairly self explanatory. Keep a reference initially, drop it when we free up the driver resources. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] JEDEC probe: fix comment typo (devic)Alexey Dobriyan2006-10-211-1/+1
| | | | | | | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] MAPS: Support for BIOS flash chips on Intel ESB2 southbridgeLew Glendenning2006-10-213-0/+459
| | | | | | | | | | | | | | | | | | | | Add MTD map driver for BIOS flash chips connected to the Intel ESB2 southbridge. [akpm@osdl.org: coding-style fixes, build fix] Signed-off-by: Ryan Jackson <rjackson@lnxi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] CHIPS: Support for SST 49LF040B flash chipRyan Jackson2006-10-212-2/+21
| | | | | | | | | | | | | | | | Add chip driver and JEDEC probe support for the SST 49LF040B flash chip. Signed-off-by: Ryan Jackson <rjackson@lnxi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] MAPS: Add parameter to amd76xrom to override rom window sizeRyan Jackson2006-10-211-6/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 2 bits controlling the window size are often set to allow reading the BIOS, but too small to allow writing, since the lock registers are 4MiB lower in the address space than the data. This is intended to prevent flashing the bios, perhaps accidentally. The bits are 6 and 7. If both bits are set, it is a 5MiB window. If only the 7 Bit is set, it is a 4MiB window. Otherwise, it is a 64KiB window. This parameter allows the driver to override the BIOS settings. Signed-off-by: Ryan Jackson <rjackson@lnxi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] SSFDC must depend on BLOCKAdrian Bunk2006-10-091-2/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following compile error with CONFIG_SSFDC=m, CONFIG_BLOCK=n: <-- snip --> ... CC [M] drivers/mtd/mtd_blkdevs.o /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/mtd/mtd_blkdevs.c:40: warning: ‘struct request’ declared inside parameter list /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/mtd/mtd_blkdevs.c:40: warning: its scope is only this definition or declaration, which is probably not what you want /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/mtd/mtd_blkdevs.c: In function ‘do_blktrans_request’: /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/mtd/mtd_blkdevs.c:45: error: dereferencing pointer to incomplete type ... make[3]: *** [drivers/mtd/mtd_blkdevs.o] Error 1 <-- snip --> Bug report by Jesper Juhl. This patch also removes a pointless "default n" from the SSFDC option. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* fix file specification in commentsUwe Zeisberger2006-10-032-2/+2
| | | | | | | Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Fix several typos in drivers/Matt LaPlante2006-10-033-3/+3
| | | | Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [MTD] Cleanup of 'ioremap balanced with iounmap for drivers/mtd subsystem'Amol Lad2006-10-026-13/+13
| | | | | | | | | | Updated version of patch, in response to comments from Francois Romieu <romieu@fr.zoreil.com> Remove gratuitous casts from iounmap and initialisation of variables. Signed-off-by: Amol Lad <amol@verismonetworks.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] fix nftl_write warningFrederik Deweerdt2006-10-021-2/+2
| | | | | | | | | | | | Building 2.6.18-mm2 issues the following warning if CONFIG_NFTL_RW is not set: CC [M] drivers/mtd/nftlcore.o drivers/mtd/nftlcore.c:183: warning: 'nftl_write' defined but not used The following patch only compiles nftl_write if CONFIG_NFTL_RW is set. Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] fix printk warningJeff Garzik2006-10-011-1/+1
| | | | | | | | | | | | | | gcc spits out this warning: drivers/mtd/mtd_blkdevs.c: In function ‘do_blktrans_request’: drivers/mtd/mtd_blkdevs.c:72: warning: format ‘%ld’ expects type ‘long int’, but argument 2 has type ‘unsigned int’ This could be fixed any number of ways, including use of BUG(). rq_data_dir() only returns 0 or 1, so this entire case is superfluous. I did the most simple fix. Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* Merge branch 'master' of ↵David Woodhouse2006-10-013-8/+8
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Manually resolve conflict in include/mtd/Kbuild Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * [PATCH] BLOCK: Make it possible to disable the block layer [try #6]David Howells2006-09-302-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: David Howells <dhowells@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
| * [PATCH] Split struct request ->flags into two partsJens Axboe2006-09-301-1/+1
| | | | | | | | | | | | | | | | | | | | Right now ->flags is a bit of a mess: some are request types, and others are just modifiers. Clean this up by splitting it into ->cmd_type and ->cmd_flags. This allows introduction of generic Linux block message types, useful for sending generic Linux commands to block devices. Signed-off-by: Jens Axboe <axboe@suse.de>
* | [MTD ONENAND] Check OneNAND lock scheme & all block unlock command supportKyungmin Park2006-09-261-19/+118
| | | | | | | | | | | | | | | | OneNAND lock scheme depends on density and process of chip. Some OneNAND chips support all block unlock Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD ONENAND] Remove unused MTD_ONENAND_SYNC_READ configurationKyungmin Park2006-09-261-6/+0
| | | | | | | | | | | | | | | | Now the bootloader configures the OneNAND sync. burst mode. So we don't access Sync. burst mode related registers in kernel. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD ONENAND] Fix OneNAND probeKyungmin Park2006-09-261-3/+14
| | | | | | | | | | | | | | | | - fix OneNAND probe whether OneNAND Sync. Burst read mode or not - fix OneNAND reset wait problem Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD NAND] Allow override of page read and write functions.David Woodhouse2006-09-251-23/+21
| | | | | | | | | | | | | | | | - allow high-level nand_write_page() function to be overridden - likewise low-level write_page_raw() and read_page_raw() functions - Clean up the abuse of chip->ecc.{write,read}_page() with MTD_OOB_RAW Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD NAND] Allocate chip->buffers separately to allow it to be overriddenDavid Woodhouse2006-09-252-15/+22
| | | | | | | | | | | | In particular, the board driver might need it to be DMAable. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD NAND] Split nand_scan() into two parts; allow board driver to interveneDavid Woodhouse2006-09-251-25/+65
| | | | | | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD NAND] Export nand_wait_ready() for use by board driversDavid Woodhouse2006-09-251-1/+2
|/ | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] Whitespace cleanup in SSFDC driver.David Woodhouse2006-09-231-11/+11
| | | | | | Says akpm: ' - search for "( " and " )", fix.' Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] SSFDC translation layer minor cleanupDavid Woodhouse2006-09-231-15/+21
| | | | | | | | Don't include <linux/config.h>. Don't say 'MB' where you mean 'MiB'. Don't allocate 512 bytes on the stack. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] Fix dependencies with CONFIG_MTD=mDavid Woodhouse2006-09-231-2/+2
| | | | | | | CMDLINEPARTS shouldn't be selectable, and neither should SSFDC, which can be a tristate anyway. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* Revert "[MTD] blkdev helper code: fix printk format warning"David Woodhouse2006-09-221-1/+1
| | | | | | | | | | This reverts commit 668040fcd1e06fc3e68a92708cbdfa5a52c37d3c. The 'flags' field of the struct request is 'unsigned long'. Quite how Randy came to see 'long int format, different type arg' I don't know, but it doesn't seem to be the case any more. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] Add SSFDC (SmartMedia) read-only translation layerClaudio Lanconelli2006-09-223-0/+477
| | | | | Signed-off-by: Claudio Lanconelli <lanconelli.claudio@eptar.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] pmc551 pci cleanupJiri Slaby2006-09-221-8/+5
| | | | | | | | Use pci_resource_start for getting start of regions and pci_iomap to not doing this directly by using dev->resource... (Thanks to Rolf Eike Beer) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] pmc551 use kzallocJiri Slaby2006-09-221-5/+2
| | | | | | | Use kzalloc instad of kmalloc+memset(0). Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] pmc551 whitespace cleanupJiri Slaby2006-09-221-567/+596
| | | | | | | | Spaces were used for indent, there was more than 80 columns per line. Get rid of that stuff. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] Remove iq80310 map driverLennert Buytenhek2006-09-223-127/+0
| | | | | | | | | | The iq80310 mtd map driver depends on ARCH_IQ80310, which isn't defined anywhere in the tree (as we don't have 80310 support), and furthermore, everything the driver does can be done with physmap instead. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD NAND] Fix in typo ndfc.c causing wrong ECC layoutFrank Haverkamp2006-09-221-1/+1
| | | | | | | Due to this typo, a wrong ECC layout table is chosen. Signed-off-by: Frank Haverkamp <haver@vnet.ibm.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] physmap: add power management supportLennert Buytenhek2006-09-221-0/+33
| | | | | | | | Implement PM handling for physmap. Idea from Steven Scholz, patch by David Anders. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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