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* [MTD] chips: Clean up trailing white spacesThomas Gleixner2005-11-07
| | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] chips cfi_cmdset_0002: Prevent timeout raceKonstantin Baidarov2005-11-07
| | | | | | | | | | | | | | | | | | 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>
* [MTD] chips/cfi_cmdset_0001: fix for P30 cfi parsingNicolas Pitre2005-11-06
| | | | | | | | | | 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>
* [MTD] writev support for cfi-cmdset-0001Nicolas Pitre2005-11-06
| | | | | | | | 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>
* {MTD] add support for Intel's "Sibley" flashNicolas Pitre2005-11-06
| | | | | | | | | | | | | 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>
* [MTD] cleanups to cfi_cmdset_0001Nicolas Pitre2005-11-06
| | | | | | | | 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>
* Merge branch 'master' of /home/tglx/work/mtd/git/linux-2.6.git/Thomas Gleixner2005-11-06
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| * [PATCH] fix missing includesTim Schmielau2005-10-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | [MTD] Pre-CFI Sharp chip driver: Some speedups and cleanupsTodd Poynor2005-08-04
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | [MTD] CHIPS: Recognize Spansion CFI 1.4 chipsTodd Poynor2005-08-04
|/ | | | | | | | | | | | | | | | 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>
* [MTD] cfi_cmdset_0002: Plugged a mem leak.Joern Engel2005-07-13
| | | | | Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Make XIP support depend on CONFIG_ARMThomas Gleixner2005-07-12
| | | | | | | 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>
* [MTD] XIP cleanupThomas Gleixner2005-07-07
| | | | | | Move the architecture dependend code into include/asm/mtd-xip.h Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] cfi_cmdset_0002: Remove bogus includeThomas Gleixner2005-07-04
| | | | | | | 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>
* [MTD] XIP for AMD CFI flash.Todd Poynor2005-06-29
| | | | | | Author: Vitaly Wool <vwool@ru.mvista.com> Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] cfi_cmdset_0002: Fix broken status checkThomas Gleixner2005-05-24
| | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] CFI-0002 - Improve error checkingEric W. Biedermann2005-05-23
| | | | | | | 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>
* [MTD] CFI flash locking reorg for XIPNicolas Pitre2005-05-23
| | | | | | | | | | | 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>
* [MTD] CFI DEBUG_LOCK_BITS fixes for Intel NOR flash:Todd Poynor2005-05-23
| | | | | | | | 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>
* [MTD] Fix OTP for top-parameter devicesNicolas Pitre2005-05-23
| | | | | Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Add reboot notifier to Intel NOR flash driverNicolas Pitre2005-05-23
| | | | | | | | | 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>
* [MTD] Avoid compile warnings for Intel CFI flash without OTP support.Todd Poynor2005-05-23
| | | | | Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] cfi_cmdset_0001: Skip delay if Instant Block Locking is setTodd Poynor2005-05-23
| | | | | | | | 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>
* [MTD] cfi_cmdset_0001: Fix compiler warningsThomas Gleixner2005-05-23
| | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] cfi_cmdset_0001: Fix state after syncNicolas Pitre2005-05-23
| | | | | | | 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>
* [MTD] cfi_cmdset_0001: Fix the buggy status check. Thomas Gleixner2005-05-23
| | | | | | | 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>
* [MTD] Make OTP actually work.Nicolas Pitre2005-05-23
| | | | | | | The OTP code is rather broken without this. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Add SST 39VF1601 (MPF+) IDBen Dooks2005-05-23
| | | | | Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Fixup probing logic for single 16bit devicesBen Dooks2005-05-23
| | | | | | | | | | | | | | | | | | | 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>
* [MTD] Support for protection register support on Intel FLASH chipsNicolas Pitre2005-05-23
| | | | | | | | | | 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>
* [MTD] Add OTP basiscNicolas Pitre2005-05-23
| | | | | | | add structure definition for OTP region info Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] amd_flash: Fix chip ID clashJonas Holmberg2005-05-23
| | | | | | | | * 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>
* [MTD] Fix MTD device probingRussell King2005-05-23
| | | | | | | | | | | Try larger numbers of chips before smaller numbers of chips across the bus width. This means we'll avoid misdetecting a 2 x16 array as 1 x32 if the high 16-bits happen to read as zeros in the QRY area. Signed-off-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
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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