Commit graph

409 commits

Author SHA1 Message Date
Sergei Poselenov
248ae5cfc8 NAND: Added support for 128-bit OOB, adapted
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
2008-06-11 00:30:22 -05:00
Wolfgang Grandegger
a75a57ef6e NAND FSL UPM: driver re-write using the hwcontrol callback
This is a re-write of the NAND FSL UPM driver using the more universal
hwcontrol callback (instead of the cmdfunc callback). Here is a brief
list of furher modifications:

- For the time being, the UPM setup writing the UPM array has been
  removed from the driver and must now be done by the board specific
  code.

- The bus width definition in "struct fsl_upm_nand" is now in bits to
  comply with the corresponding Linux driver and 8, 16 and 32 bit
  accesses are supported.

- chip->dev_read is only set if fun->dev_ready != NULL, which is
  required for boards not connecting the R/B pin.

- A few issue have been fixed with MxMR bit manipulation like in the
  corresponding Linux driver.

Note: I think the "io_addr" field of "struct fsl_upm" could be removed
      as well, because the address is already determined by
      "nand->IO_ADDR_[RW]", but I'm not 100% sure.

This patch has been tested on a TQM8548 modules with the NAND chip
Micron MT29F8G08FABWP.

This patch is based on the following patches posted to this list a few
minutes ago:

  PPC: add accessor macros to clear and set bits in one shot
  83xx/85xx/86xx: add more MxMR local bus definitions

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com>
2008-06-10 18:22:26 -05:00
Dirk Behme
9723bbb46a nand: Correct NAND erase percentage output
For NAND erase sizes smaller than one NAND erase block, erase
percentage output becomes grater than 100% e.g.

-- cut --
  > nand info
Device 0: NAND 64MiB 1,8V 8-bit, sector size 16 KiB
  > nand erase 0x100000 0x2000
NAND erase: device 0 offset 0x100000, size 0x2000
Erasing at 0x100000 -- 200% complete.
OK
  >
-- cut --

Correct this and give user a warning that more is erased than specified:

-- cut --
  > nand erase 0x100000 0x2000
NAND erase: device 0 offset 0x100000, size 0x2000
Warning: Erase size 0x00002000 smaller than one erase block 0x00004000
           Erasing 0x00004000 instead
Erasing at 0x100000 -- 100% complete.
OK
  >
-- cut --

Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
2008-05-28 11:06:27 -05:00
Wolfgang Denk
53677ef18e Big white-space cleanup.
This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).

Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-05-21 00:14:08 +02:00
Troy Kisky
84c01d3a05 PATCH - Fix oob data copied into supplied buffer
This patch correctly sets the oobavail variable
and fixes a bug where the oob data was not valid when
there where multiple groups in oobfree.

First segment fixes a typo
Second segment fixes a bug where oob data may be copied incorrectly.
Third segment adds an error message when exiting due to write protect.
Forth segment fixes a bug where oobavail may be set incorrectly.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
2008-04-21 08:43:46 +02:00
Mike Frysinger
e25cb8d3f4 Remove conflicting NAND ID
There are two NAND entries with ID 0xDC and this obviously causes problems.
In the kernel, they punted the first entry, so we should do the same.

See this upstream e-mail for more info:
http://lists.infradead.org/pipermail/linux-mtd/2007-July/018795.html

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-04-17 14:56:56 -07:00
Anton Vorontsov
cd9d23053d nand: FSL UPM NAND driver
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
2008-01-16 14:14:40 +01:00
Marcel Ziswiler
7817cb2083 fix comments with new drivers organization
Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
2008-01-09 21:48:49 +01:00
Jean-Christophe PLAGNIOL-VILLARD
59829cc189 drivers/mtd : move mtd drivers to drivers/mtd
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2007-11-25 23:28:52 +01:00