[U-Boot] [PATCH v3 0/6] i.MX31: Add NAND support and new PDK board.

[Magnus Lilja]

Hi again

This series of patches adds support for the NAND flash controller in the
i.MX31 device and also introduces the Freescale i.MX31 PDK board.

Changes since v2:

- Added doc/README.mx31 (contains MC13783 SPI config documentation)
- Split the PDK patch into two patches, the first introduces the
board without NAND support, the second adds NAND support.
- Re-ordered the series so the NAND patches are placed last
- mx31_nand.c has been updated w.r.t. coding style.
- There are still issues with the NAND driver (i.e. not all comments from
Scott Wood have been taken care of yet). Therefore I suspect that the
NAND driver is not ready for inclusion yet, the other patches should be
OK.

The patches are based on the current main U-boot git repo (as of 
Friday morning).

Changes since v1:

- Moved PDK board to boards/freescale/mx31pdk
- Moved mxc_nd.c to driver/mtd/nand/mx31_nand.c
- Moved contents of mxc_nd.h to mx31-regs.h
- Cleaned up the mx31pdk.h config file after comments from this list
- CONFIG_CMD_IMLS is still #undef'd but a comment is added in the config
  file about that.
- A new patch has been inserted into the series, it makes the MC13783 SPI
  bus and chip select configurable.

The patches are based on the current main U-boot git repo.

Original intro for this series of patches:

At the moment, the patch series does not add support for booting from
NAND. This means that the PDK board support assumes that some other entity
configures the SDRAM and loads U-boot into RAM (e.g. another bootloader or a
JTAG debugger). Support for NAND boot is in progress and will be submitted
later.

The NAND driver is based on Freescale's Linux driver from their BSP. I've
cleaned it up a bit and made the (minor) modifications necessary for
U-boot. Perhaps the driver should be cleaned up even more, there are some
CONFIG_MTD_MXC_* leftovers in the driver.

I have tested the driver on the Litekit (small page NAND) and on the PDK
(large page NAND) by having the U-boot environment placed in NAND.



Regards, Magnus