| Commit message (Collapse) | Author | Age | Files | Lines |
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Fix two compile warnings that occur because of treating two
'unsigned long's as 'void *'s.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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The assignement of a "const char *" to a "char *" variable
is emitting a warning with gcc 4.0. We cannot change
mtd->name to "const char *" as we have dynamic assignements
of the name. So casting is the correct solution here
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Nathan Roberts noticed the nand_write_ecc index into oobbuf goes out of
bounds when crossing an erase block boundary, causing incorrect OOB data
to be written and corrupting memory. Reset the index to zero after
re-preparing oobbuf for a new erase block.
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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In case of an odd offset, the result was shifted by 1 instead of 8
Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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This reverts 405c829f98d216925de00af2ee52f969f2c2891c commit.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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While we are at it, reorder the includes and
remove the silly /* TASK */ comment
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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- Use map.virt instead of map.map_priv_1 since it has the correct type.
- Use readw/writew instead of dereferencing an ioremap'd cookie.
- Remove an unused variable.
Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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The Sharp Zaurus akita and borzoi models are large page flash devices.
This patch adds support for them to the sharpsl MTD NAND driver but
keeps the oob layout and bad block positions compatible with the Sharp
Zaurus 2.4 kernel and ROM bootloader.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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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>
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Spotted by basprog@mail.ru
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Added .owner initialisation to allow the
tracking of the device_driver owners when
built as a module
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Added owner to device driver field for tracking
when loaded as a module.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Added owner fields to the device_driver for tracking
ownership when built as a module
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Don't assume eraseblock size is power of 2.
Dataflash can have aligned eraseblock size.
From: Peter Menzebach <pm-mtd@mw-itcon.de>
Acked-by: Artem B. Bityutskiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Add density mask for better support of DDP chips.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Add suspend/resume
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Simple bad block table source and header files
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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- cleaned up the partitions and include files
- added more flexible CS and address detection and setup
Regression tested on db1200 and db1550.
Signed-off-by: Pete Popov <ppopov@pacbell.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Add support for "4G Systems MTX-1 Flash device", better known as meshcube.
From: Bruno Randolf <bruno.randolf@4g-systems.biz>
Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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The changes introduced allow to suspend/resume NAND flash.
A new state (FL_PM_SUSPENDED) is introduced, as well as
routines for mtd->suspend and mtd->resume to put the flash in
suspended state from software pov.
Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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From: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Now we can use the generic platform driver
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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- Intel chip driver has a reboot notifier so no need to reset the chip here.
- Don't play with chip selects (platform code should do this if necessary).
Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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- Remove unused block, page parameters
- Add constant instead of runtime value
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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- Update OMAP OneNAND mapping file using device driver model
- Remove board specific macro and values.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Based on NAND memory bad block table code
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Add OneNAND Sync. Burst Read support
Tested with OMAP platform
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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OneNAND is a new flash technology from Samsung with integrated SRAM
buffers and logic interface.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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The bit mask used for oob size calculation was using 2 bits instead
of one. Fortunately the next bit has been 0 all the time.
Thanks to Nathan H. for pointing this out
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Youssef Hmamouche <hyoussef@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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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>
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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>
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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>
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This type of flash translation layer (FTL) is used by the Embedded BIOS
by General Software. It is known as the Resident Flash Disk (RFD), see:
http://www.gensw.com/pages/prod/bios/rfd.htm
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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mtdchar return -EINVAL for seek prior to offset 0 or to beyond the last
byte in the device/partition, similar to various other seek methods,
instead of fixing up to first or last byte.
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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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>
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mtdblock (and other mtd modules that use the mtd_blkdevs interface
between the mtd translation layers and the linux block layer) handles
incorrectly more than 10 devices or 26 partitions in the names passed to
the generic disk layer. This causes the device file names and other
info kept by the generic disk/block layers to have names such as
"mtdblock<". Use integer formatting for device numbers; use "aa-az"
for partitions 27-52, "ba-bz" for 53-78...
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Remove mtd_blkdevs refs to the no longer functional DEVFS filesystem.
Verified mtdblock continues to work fine via udev with these calls
removed.
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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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>
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