Messages in this thread | | | From | Peter Pan <> | Subject | [PATCH 00/11] mtd: nand_bbt: introduce independent nand BBT | Date | Mon, 14 Mar 2016 02:47:53 +0000 |
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Sorry for send the v3 out late. I went through a busy time in the past two month.
Currently nand_bbt.c is tied with struct nand_chip, and it makes other NAND family chips hard to use nand_bbt.c. Maybe it's the reason why onenand has own bbt(onenand_bbt.c).
Separate struct nand_chip from BBT code can make current BBT shareable. We create struct nand_bbt to take place of nand_chip in nand_bbt.c. Struct nand_bbt contains all the information BBT needed from outside and it should be embedded into NAND family chip struct (such as struct nand_chip).
Below is mtd folder structure we want: drivers/mtd/nand/<all-nand-core-code> drivers/mtd/nand/raw/<raw-nand-controller-drivers> drivers/mtd/nand/spi/<spi-nand-code> drivers/mtd/nand/onenand/<onenand-code> drivers/mtd/nand/chips/<manufacturer-spcific-code>
Most of the patch is borrowed from Brian Norris <computersforpeace@gmail.com>. http://git.infradead.org/users/norris/linux-mtd.git/shortlog/refs/heads/nand-bbt I decided the authorship of each patch by contribution. Please let me know if there is something unproper. Based on Brian's suggestion and Boris's comments, I make 11 independent patches. Previous patch is http://patchwork.ozlabs.org/patch/492066/ After discussion with Boris and Ezequiel, I realized above structure is better, so I drop the patch to move nand_bbt.c to mtd folder.
The patch is tested on Zed board.
v3 changes: introduce struct nand_bbt_ops introduce struct nand_chip_layout_info add nand_bbt_create/destroy() API use mtd_to_nand instead mtd->priv directly remove mark_bad_bbm() due to no user yet keep nand_bbt.c in mtd/nand folder add nand_get_bbt() helper function rebase patch series on 4.5.0-rc1 v2 changes: rebase patch series on master branch of l2-mtd.git
Brian Norris (7): mtd: nand_bbt: new header for nand family BBT mtd: nand_bbt: introduce BBT related data structure mtd: nand_bbt: use struct nand_bbt_ops in BBT mtd: nand: make nand_erase_nand() static mtd: nand_bbt: remove struct nand_chip from nand_bbt.c mtd: nand_bbt: remove NAND_BBT_DYNAMICSTRUCT macro mtd: nand: remove nand_chip.bbt
Peter Pan (4): mtd: nand_bbt: add new API definitions mtd: nand_bbt: add nand_bbt_markbad_factory() interface mtd: nand: use new BBT API instead of old ones mtd: nand_bbt: remove old API definitions
drivers/mtd/nand/docg4.c | 7 +- drivers/mtd/nand/nand_base.c | 156 ++++++++++- drivers/mtd/nand/nand_bbt.c | 604 +++++++++++++++++++++---------------------- include/linux/mtd/bbm.h | 96 +------ include/linux/mtd/nand.h | 22 +- include/linux/mtd/nand_bbt.h | 190 ++++++++++++++ 6 files changed, 644 insertions(+), 431 deletions(-) create mode 100644 include/linux/mtd/nand_bbt.h
-- 1.9.1
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