[PATCH 0/2] Revised: MTD: OneNAND: multiblock erase support

Mika Korhonen ext-mika.2.korhonen at nokia.com
Tue Oct 6 04:55:58 EDT 2009

This patch series is a reworked version of


based on comments by Adrian Hunter and Kyungmin Park. This version should
address the issues pointed out by them and apply on the current mtd tree.

The original patch is:

I split the original patch in two for readability: the first part extracts
the execution of erase command to a separate function for easier integration
of different erase method. The second part implements the multiblock erase
function in case multiple blocks are requested to be erased and the chip is
not Flex.

This is useful for flashing applications that need to do their work as
fast as possible. For full 64 eraseblock case the erase speed is up to 30x
faster. (Samsung: 64 MB/s vs 2.1 GB/s, I got 1.4 GB/s on Linux kernel)

Mika Korhonen (2):
  MTD: OneNAND: move erase method to a separate function
  MTD: OneNAND: multiblock erase support

 drivers/mtd/onenand/omap2.c        |   22 +++-
 drivers/mtd/onenand/onenand_base.c |  298 +++++++++++++++++++++++++++++------
 include/linux/mtd/flashchip.h      |    4 +-
 include/linux/mtd/onenand_regs.h   |    2 +
 4 files changed, 270 insertions(+), 56 deletions(-)

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