[U-Boot] [PATCH v2 0/4] Add NAND support to DFU

[Tom Rini]

Hey all,

This is a v2 of Pantelis' DFU for NAND patches.  Based on Scott's
feedback on the list as well as some further discussion, things have
been reworked so that we are not using the command interface but instead
calling nand_(read|write)_skip_bad directly.  This needed some changes
to that code so that we can find out how much space was used for our
buffer (as we write in chunks).  The NAND changes have been
compile-tested on all ARM and PowerPC targets and run-time tested on
ARM.  A pleasant side-effect of these changes is that we can now, when
writing to mtdparts defined partitions at least, check for and prevent
cases when badblocks would cause us to previously silently overwrite
part of the next partition.

For practical reasons, this series depends on Pantelis' previous series
of generic DFU changes.

Changes since v1:
- NAND skip_check_len changes reworked to allow
  nand_(read|write)_skip_bad to return this information to the caller.
- dfu_nand calls nand_(read|write)_skip_bad directly.
- Bugfix in dfu_nand to make sure we set dfu->skip_bad to 0 on each
  iteration.
- Define mtdparts for am335x_evm
- Set both dfu_alt_info_mmc and dfu_alt_info_nand on am335x_evm so that
  there working examples for both by default.

-- 
Tom