u-boot.git/include/linux/mtd/fsl_upm.h, branch master

mtd: Drop unused fsl_upm driver

2023-02-07T19:33:48+00:00

This is not used since this commit:

   8d1e3cb1400 powerpc: mpc83xx: remove MPC8360ERDK, EMPC8360EMDS support

Drop the driver and Kconfig option.

Signed-off-by: Simon Glass 
Reviewed-By: Michael Trimarchi

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12+00:00

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini

mtd: nand: Rename nand.h into rawnand.h

2017-12-04T13:00:00+00:00

This header was renamed to rawnand.h in Linux.

The following is the corresponding commit in Linux.

  commit d4092d76a4a4e57b65910899948a83cc8646c5a5
  Author: Boris Brezillon 
  Date:   Fri Aug 4 17:29:10 2017 +0200

      mtd: nand: Rename nand.h into rawnand.h

      We are planning to share more code between different NAND based
      devices (SPI NAND, OneNAND and raw NANDs), but before doing that
      we need to move the existing include/linux/mtd/nand.h file into
      include/linux/mtd/rawnand.h so we can later create a nand.h header
      containing all common structure and function prototypes.

Signed-off-by: Masahiro Yamada

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38+00:00

Signed-off-by: Wolfgang Denk 
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini

Add wait flags to support board/chip specific delays

2009-03-23T20:53:40+00:00

The NAND flash on the TQM8548_BE modules requires a short delay after
running the UPM pattern like the MPC8360ERDK board does. The TQM8548_BE
requires a further short delay after writing out a buffer. Normally the
R/B pin should be checked, but it's not connected on the TQM8548_BE.
The corresponding Linux FSL UPM driver uses similar delay points at the
same locations. To manage these extra delays in a more general way, I
introduced the "wait_flags" field allowing the board-specific driver to
specify various types of extra delay.

Signed-off-by: Wolfgang Grandegger 
Signed-off-by: Scott Wood

Add support for TQM-specific chip select logic to FSL-UPM

2009-03-23T20:53:39+00:00

For the NAND chips on the TQM8548 modules, a special chip-select logic is
used. It uses dedicated address lines to be set via UPM machine address
register (mar). This patch adds such support to the FSL-UPM driver.

Signed-off-by: Wolfgang Grandegger 
Signed-off-by: Scott Wood

Add multi chip support to the FSL-UPM driver

2009-03-23T20:53:38+00:00

This patch adds support for multi-chip NAND devices to the FSL-UPM
driver. The "dev_ready" callback of the "struct fsl_upm_nand" is now
called with the argument "chip_nr" to allow testing the proper chip
select line. The NAND support of the MPC8360ERDK is updated as well.
No other boards are currently using the FSL UPM driver.

Signed-off-by: Wolfgang Grandegger 
Signed-off-by: Scott Wood

nand: fsl_upm: convert to updated MTD NAND infrastructure

2008-08-12T16:31:27+00:00

Signed-off-by: Anton Vorontsov 
Signed-off-by: Scott Wood

NAND FSL UPM: driver re-write using the hwcontrol callback

2008-06-10T23:22:26+00:00

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 
Acked-by: Anton Vorontsov

nand: FSL UPM NAND driver

2008-01-16T13:14:40+00:00

Signed-off-by: Anton Vorontsov