linux-toradex.git/drivers/mtd/nand, branch v2.6.32.51

mtd: add "platform:" prefix for platform modalias

2011-03-23T20:16:37+00:00

commit c804c733846572ca85c2bba60c7fe6fa024dff18 upstream.

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf (platform: prefix MODALIAS
with "platform:"), the platform modalias is prefixed with "platform:".

Signed-off-by: Axel Lin 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse 
Signed-off-by: Greg Kroah-Hartman

pxa3xx: fix ns2cycle equation

2010-08-26T23:41:42+00:00

commit 93b352fce679945845664b56b0c3afbd655a7a12 upstream.

Test on a PXA310 platform with Samsung K9F2G08X0B NAND flash,
with tCH=5 and clk is 156MHz, ns2cycle(5, 156000000) returns -1.

ns2cycle returns negtive value will break NDTR0_tXX macros.

After checking the commit log, I found the problem is introduced by
commit 5b0d4d7c8a67c5ba3d35e6ceb0c5530cc6846db7
"[MTD] [NAND] pxa3xx: convert from ns to clock ticks more accurately"

To get num of clock cycles, we use below equation:
num of clock cycles = time (ns) / one clock cycle (ns) + 1
We need to add 1 cycle here because integer division will truncate the result.
It is possible the developers set the Min values in SPEC for timing settings.
Thus the truncate may cause problem, and it is safe to add an extra cycle here.

The various fields in NDTR{01} are in units of clock ticks minus one,
thus we should subtract 1 cycle then.

Thus the correct equation should be:
num of clock cycles = time (ns) / one clock cycle (ns) + 1 - 1
                    = time (ns) / one clock cycle (ns)

Signed-off-by: Axel Lin 
Signed-off-by: Lei Wen 
Acked-by: Eric Miao 
Signed-off-by: David Woodhouse 
Signed-off-by: Greg Kroah-Hartman

mtd: nand: fix htmldocs warnings

2009-09-24T14:46:25+00:00

Fixed following htmldocs warnings:

  DOCPROC Documentation/DocBook/mtdnand.xml
  Warning(drivers/mtd/nand/nand_base.c:769): No description found for parameter 'page'
  Warning(drivers/mtd/nand/nand_base.c:785): No description found for parameter 'page'
  Warning(drivers/mtd/nand/nand_base.c:824): No description found for parameter 'page'
  Warning(drivers/mtd/nand/nand_base.c:947): No description found for parameter 'page'
  Warning(drivers/mtd/nand/nand_base.c:996): No description found for parameter 'page'
  Warning(drivers/mtd/nand/nand_base.c:1040): No description found for parameter 'page'

Signed-off-by: Jaswinder Singh Rajput 
Signed-off-by: David Woodhouse

Merge git://git.infradead.org/mtd-2.6

2009-09-23T17:07:49+00:00

* git://git.infradead.org/mtd-2.6: (58 commits)
  mtd: jedec_probe: add PSD4256G6V id
  mtd: OneNand support for Nomadik 8815 SoC (on NHK8815 board)
  mtd: nand: driver for Nomadik 8815 SoC (on NHK8815 board)
  m25p80: Add Spansion S25FL129P serial flashes
  jffs2: Use SLAB_HWCACHE_ALIGN for jffs2_raw_{dirent,inode} slabs
  mtd: sh_flctl: register sh_flctl using platform_driver_probe()
  mtd: nand: txx9ndfmc: transfer 512 byte at a time if possible
  mtd: nand: fix tmio_nand ecc correction
  mtd: nand: add __nand_correct_data helper function
  mtd: cfi_cmdset_0002: add 0xFF intolerance for M29W128G
  mtd: inftl: fix fold chain block number
  mtd: jedec: fix compilation problem with I28F640C3B definition
  mtd: nand: fix ECC Correction bug for SMC ordering for NDFC driver
  mtd: ofpart: Check availability of reg property instead of name property
  driver/Makefile: Initialize "mtd" and "spi" before "net"
  mtd: omap: adding DMA mode support in nand prefetch/post-write
  mtd: omap: add support for nand prefetch-read and post-write
  mtd: add nand support for w90p910 (v2)
  mtd: maps: add mtd-ram support to physmap_of
  mtd: pxa3xx_nand: add single-bit error corrections reporting
  ...

trivial: mtd: add init/exit macros to init/exitfunctions

2009-09-21T13:14:53+00:00

Trivial patch which adds the __init and __exit macros to the module_init /
module_exit functions to the following modules from drivers/mtd/
 devices/m25p80.c
 devices/slram.c
 linux version 2.6.30
 ftl.c
 nand/cafe_nand.c
 nand/cmx270_nand.c

Signed-off-by: Peter Huewe 
Signed-off-by: Jiri Kosina

mtd: nand: driver for Nomadik 8815 SoC (on NHK8815 board)

2009-09-20T12:59:42+00:00

Signed-off-by: Alessandro Rubini 
Acked-by: Andrea Gallo 
Acked-by: Russell King 
Signed-off-by: David Woodhouse

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

2009-09-20T12:55:36+00:00

Conflicts:
	drivers/mtd/mtdcore.c

Merged in order that I can apply the Nomadik nand/onenand support patches.

mtd: sh_flctl: register sh_flctl using platform_driver_probe()

2009-09-19T23:07:34+00:00

As with orion_nand in commit f33dabbe79fdf7a8568c65faa1db7794c87ac4d3
("register orion_nand using platform_driver_probe()"), avoid .init.text
problems by using platform_device_probe(). This isn't going to be
hotplugged anyway.

Reported-by: Uwe Kleine-König 
Signed-off-by: David Woodhouse

mtd: nand: txx9ndfmc: transfer 512 byte at a time if possible

2009-09-19T21:20:58+00:00

Using __nand_correct_data() helper function, this driver can read 512
byte (with 6 byte ECC) at a time.  This results minor performance
improvement.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: David Woodhouse

mtd: nand: fix tmio_nand ecc correction

2009-09-19T21:20:33+00:00

This driver may be reading 512 bytes at a times, but still calculates
256-byte sector ECC.  So the nand_correct_data() is not appropriate
for this driver.  Implement its ecc.correct function calling
__nand_correct_data() twice.

Signed-off-by: Atsushi Nemoto 
Acked-by: Dmitry Eremin-Solenikov 
Acked-by: Vimal Singh 
Signed-off-by: David Woodhouse