[U-Boot] [PATCH v4 0/3] introduce nand write.trimffs

[Ben Gardiner]

This series adds a nand write variant which implements the procedure
reccomended in the UBI FAQ [1] of dropping trailing pages of eraseblocks
containing entirely 0xff's.

[1] http://www.linux-mtd.infradead.org/doc/ubi.html#L_flasher_algo

Changes since v3:
 * rebased to nand-flash/next where patches 1/4 and 2/4 [v3] were already
   applied
 * added patch 1/3 [v4] to treat WITH_YAFFS_OOB as a mode
 * renumbered 3/4 and 4/4 [v3] to 1/3 and 3/3 [v4], respectively
 * remove uneccessary cast
 * wrapped README at 80 columns
 * prevent access past input buffer end

Changes since v2:
 * dropped WITH_DEFAULTS in favour of '0'
 * moved copyright header to nand_util patch
 * added write.trimffs variant to README.nand

Changes since v1:
 * renamed to 'trimffs' from 'ubi'
 * wrapped the new feature in #ifdefs
 * don't make it default for jffs -- patch dropped
 * attribution of the drop_ffs() function from mtd-utils to Artem

Ben Gardiner (3):
  [v4] nand_util: treat WITH_YAFFS_OOB as a mode
  [v4] nand_util: drop trailing all-0xff pages if requested
  [v4] cmd_nand: add nand write.trimffs command

 common/cmd_nand.c            |   16 +++++++++++++++
 doc/README.nand              |   10 +++++++++
 drivers/mtd/nand/nand_util.c |   43 +++++++++++++++++++++++++++++++++++++++--
 include/nand.h               |    5 +++-
 4 files changed, 70 insertions(+), 4 deletions(-)

-- 
1.7.4.1