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2006-04-01MTD: remove obsolete Kconfig optionsAnders Larsen
Remove the obsolete Kconfig options MTD_CFI_AMDSTD_RETRY and MTD_CFI_AMDSTD_RETRY_MAX The code that depended on these was removed in early 2004, but Kconfig was not updated accordingly. Signed-off-by: Anders Larsen <al@alarsen.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-31[PATCH] Add chip used in collie to jedec_probePavel Machek
This adds flash chip used in Sharp Zaurus sl5500 (collie) to jedec_probe. Values work for read-only access, but I have not figured out how to do read-write. Signed-off-by: Pavel Machek <pavel@suse.cz> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31[PATCH] drivers/mtd: Use ARRAY_SIZE macroTobias Klauser
Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove duplicates of the macro. Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31[PATCH] drivers/mtd/: small cleanupsAdrian Bunk
- chips/sharp.c: make two needlessly global functions static - move some declarations to a header file where they belong to Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26Kconfig help: MTD_JEDECPROBE already supports IntelAdrian Bunk
Intel chips are already supported. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: David Woodhouse <dwmw2@infradead.org>
2006-02-24[PATCH] cfi: init wait queue in chip structSimon Vogl
Fix a kernel oops for Intel P30 flashes, where the wait queue head was not initialized for the flchip struct, which in turn caused a crash at the first read operation. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-20[PATCH] cfi_cmdset_0001: fix range for cache invalidationAlexey Korolev
I found an issue in cfi_cmdset0001.c. It is related to cache region invalidation in the buffered write procedure. The code performs cache invalidation from "cmd_addr" to "cmd_adr + len" in do_write_buffer() while we modify region from "adr" to "adr+len". This issue affects writes + reads of data by small chunks. Signed-off-by: Nicolas Pitre <nico@cam.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-08[PATCH] arm: fix dependencies for MTD_XIPAl Viro
MTD_XIP depends on having working asm/mtd-xip.h; it's not just per-architecture (arm-only, as current Kconfig would have it), but actually per-subarch as well. Introduced a new symbol (ARCH_MTD_XIP) set by arch Kconfig; MTD_XIP depends on it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-01-16[PATCH] build kernel/intermodule.c only when requiredAdrian Bunk
Build kernel/intermodule.c only when required. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-16[PATCH] no longer mark MTD_OBSOLETE_CHIPS as BROKENAdrian Bunk
This patch removes the wrong dependency of MTD_OBSOLETE_CHIPS on BROKEN and marks the non-compiling MTD_AMDSTD and MTD_JEDEC drivers as BROKEN. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-29[MTD] Make functions static, include header files with prototypesAdrian Bunk
This patch contains the following possible cleanups: - every file should #include the headers containing the prototypes for it's global functions - make needlessly global functions static Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29[MTD] chips: make sharps driver usable againRichard Purdie
Update the pre-CFI Sharp driver sharps.c so it compiles. map_read32 / map_write32 no longer exist in the kernel so the driver is totally broken as it stands. The replacement functions use different parameters resulting in the other changes. Change collie to use this driver until someone works out why the cfi driver fails on that machine. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Tested-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29[MTD] cfi_cmdset_0001: relax locking rules for multi hardware partition supportNicolas Pitre
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29[MTD] CFI: Use 16-bit access to autoselect/read device id dataTodd Poynor
Recent models of Intel/Sharp and Spansion CFI flash now have significant bits in the upper byte of device ID codes, read via what Spansion calls "autoselect" and Intel calls "read device identifier". Currently these values are truncated to the low 8 bits in the mtd data structures, as all CFI read query info has previously been read one byte at a time. Add a new method for reading 16-bit info, currently just manufacturer and device codes; datasheets hint at future uses for upper bytes in other fields. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-09[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reasonOlaf Hering
This patch removes almost all inclusions of linux/version.h. The 3 #defines are unused in most of the touched files. A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is unfortunatly in linux/version.h. There are also lots of #ifdef for long obsolete kernels, this was not touched. In a few places, the linux/version.h include was move to where the LINUX_VERSION_CODE was used. quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'` search pattern: /UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07Merge master.kernel.org:/pub/scm/linux/kernel/git/tglx/mtd-2.6Linus Torvalds
Some manual fixups for clashing kfree() cleanups etc.
2005-11-07[PATCH] kfree cleanup: drivers/mtdJesper Juhl
This is the drivers/mtd part of the big kfree cleanup patch. Remove pointless checks for NULL prior to calling kfree() in drivers/mtd/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Acked-by: Joern Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07[MTD] chips: Clean up trailing white spacesThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07[MTD] chips: Clean up trailing white spacesThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07[MTD] chips cfi_cmdset_0002: Prevent timeout raceKonstantin Baidarov
We've noticed that sometimes "MTD do_write_buffer(): software timeout" message was printed out when writing to a Fujitsu NOR flash. It turned out that this was because of a race in the timeout handling do_write_buffer(). A small timeout of (HZ / 1000) + 1 is used there, and sometimes if the timer interrupt handling takes more than one or even two jiffies (which is 1-2 ms with HZ == 1000) and that interrupt happens just after chip_ready() call, the driver bails out from a ready polling loop despite the chip has actually become ready while all those interrupts were handled. To deal with this issue, extra check for chip ready is neccessary on timeout expiration (and the checks should better be reordered). As do_write_oneword() uses the same approach, it needs to also be changed. Signed-off-by: Konstantin Baidarov <kbaidarov@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06[MTD] chips/cfi_cmdset_0001: fix for P30 cfi parsingNicolas Pitre
Change to the extended cfi table parsing for Intel NOR flash that uses the info in the extended table to 'walk' the table rather than using hard coding for various primary extended query table version numbers. From: Jared Hulbert <jaredeh@gmail.com> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06[MTD] writev support for cfi-cmdset-0001Nicolas Pitre
While this might be useful for all supported flash types, it is mandatory for proper JFFS2 support with Sibley flash. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06{MTD] add support for Intel's "Sibley" flashNicolas Pitre
This updates the Primary Vendor-Specific Extended Query parsing to version 1.4 in order to get the information about the Configurable Programming Mode regions implemented in the Sibley flash, as well as selecting the appropriate write command code. This flash does not behave like traditional NOR flash when writing data. While mtdblock should just work, further changes are needed for JFFS2 use. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06[MTD] cleanups to cfi_cmdset_0001Nicolas Pitre
This includes improved error handling/reporting plus some other message cleanups. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06Merge branch 'master' of /home/tglx/work/mtd/git/linux-2.6.git/Thomas Gleixner
2005-10-30[PATCH] fix missing includesTim Schmielau
I recently picked up my older work to remove unnecessary #includes of sched.h, starting from a patch by Dave Jones to not include sched.h from module.h. This reduces the number of indirect includes of sched.h by ~300. Another ~400 pointless direct includes can be removed after this disentangling (patch to follow later). However, quite a few indirect includes need to be fixed up for this. In order to feed the patches through -mm with as little disturbance as possible, I've split out the fixes I accumulated up to now (complete for i386 and x86_64, more archs to follow later) and post them before the real patch. This way this large part of the patch is kept simple with only adding #includes, and all hunks are independent of each other. So if any hunk rejects or gets in the way of other patches, just drop it. My scripts will pick it up again in the next round. Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-04[MTD] Pre-CFI Sharp chip driver: Some speedups and cleanupsTodd Poynor
Remove useless udelay(100) after status value already read. Poll for status OK with reduced udelay if not immediate OK status return. Fix read and compare of 32-bit status value using 16-bit variable. Include slab.h since kmalloc/kfree are called. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-08-04[MTD] CHIPS: Recognize Spansion CFI 1.4 chipsTodd Poynor
Modify Amd/Fujitsu CFI NOR flash primary vendor extension table revision check to recognize version 1.4. Verified the existing driver can handle version 1.4 chips without additional info from 1.4 extended table. Move the primary vendor extension table revision check from common file to the 3 CFI chip driver files, since the data structures and revisions handled by those data structures are specific to the chip driver. Modify the error message printed when the revision is unknown to be a KERN_ERR instead of WARNING since this will cause mtd to ignore the chip. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-07-13[MTD] cfi_cmdset_0002: Plugged a mem leak.Joern Engel
Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-07-12[MTD] Make XIP support depend on CONFIG_ARMThomas Gleixner
ARM is the only known user of this at the moment. Prevent allyes builds for other archs from failing Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-07-07[MTD] XIP cleanupThomas Gleixner
Move the architecture dependend code into include/asm/mtd-xip.h Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-07-05[MTD] cfi_cmdset_0002: Remove bogus includeThomas Gleixner
Including asm/hardware.h has to be done in linux/mtd/xip.h. Otherwise it breaks allyes compiles. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-06-29[MTD] XIP for AMD CFI flash.Todd Poynor
Author: Vitaly Wool <vwool@ru.mvista.com> Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-24[MTD] cfi_cmdset_0002: Fix broken status checkThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] CFI-0002 - Improve error checkingEric W. Biedermann
Check for errors besides infinite loops when writing and erasing. Signed-off-by: Eric W. Biederman <ebiederman@lnxi.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] CFI flash locking reorg for XIPNicolas Pitre
This reworks the XIP locking to make sure no lock primitive is ever called from XIP disabled paths even if in theory they should not cause any reschedule. Relying on the current spinlock implementation is rather fragile and not especially clean from an abstraction pov. The recent RT work makes it even more obvious. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] CFI DEBUG_LOCK_BITS fixes for Intel NOR flash:Todd Poynor
adjust chip-relative offsets to block address, write to block address + 2 per recent datasheets. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] Fix OTP for top-parameter devicesNicolas Pitre
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] Add reboot notifier to Intel NOR flash driverNicolas Pitre
to make sure the flash is in array mode whenever we're about to reboot. This is especially useful to allow "soft" reboot to work which consists of branching back into the bootloader. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] Avoid compile warnings for Intel CFI flash without OTP support.Todd Poynor
Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] cfi_cmdset_0001: Skip delay if Instant Block Locking is setTodd Poynor
Skip jiffy delay after each block lock/unlock for Intel CFI flash with the "Instant Individual Block Locking" feature bit set. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] cfi_cmdset_0001: Fix compiler warningsThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] cfi_cmdset_0001: Fix state after syncNicolas Pitre
oldstate has to be reset to FL_READY after sync completion. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] cfi_cmdset_0001: Fix the buggy status check. Thomas Gleixner
The change makes the code endianess aware and replaces the bogus nested loop to or the status flags together. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] Make OTP actually work.Nicolas Pitre
The OTP code is rather broken without this. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] Add SST 39VF1601 (MPF+) IDBen Dooks
Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] Fixup probing logic for single 16bit devicesBen Dooks
The change to the generic probe to look for the smallest width of chip first is causing some problems on boards with a single 16bit device. The problem seems to be the jedec_match() is truncating the device-id read from the table to match against the one read from the hardware, causing a match against the partial id of some chips with 16bit IDs (such as the SST39LF160) This fixes things for my own board, but something may need to be done if the same problem is exhibited for chips with an 8bit ID Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] Support for protection register support on Intel FLASH chipsNicolas Pitre
This enables support for reading, writing and locking so called "Protection Registers" present on some flash chips. A subset of them are pre-programmed at the factory with a unique set of values. The rest is user-programmable. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] Add OTP basiscNicolas Pitre
add structure definition for OTP region info Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] amd_flash: Fix chip ID clashJonas Holmberg
* Removed table entry for AM29BDS643D, since device ID clashes with AM29DL640G and both chips support CFI. Signed-off-by: Jonas Holmberg <jonas.holmberg@axis.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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