u-boot.git/include/linux/mtd/fsl_upm.h, branch v2011.03

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