[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CAAyFOR+=xRiL+uJXmsLxGuhayn15-gP1HGZ24SEMqQjTqZdAKA@mail.gmail.com>
Date: Mon, 14 Mar 2016 10:57:49 +0800
From: Peter Pan <peterpansjtu@...il.com>
To: Brian Norris <computersforpeace@...il.com>,
David Woodhouse <dwmw2@...radead.org>,
Boris Brezillon <boris.brezillon@...e-electrons.com>
Cc: linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
karlzhang@...ron.com, beanhuo@...ron.com, xuejiancheng@...wei.com,
Peter Pan <peterpandong@...ron.com>
Subject: Re: [PATCH 00/11] mtd: nand_bbt: introduce independent nand BBT
Sorry I forgot to add subject prefix. Should I re-send it ?
On Mon, Mar 14, 2016 at 10:47 AM, Peter Pan <peterpansjtu@...il.com> wrote:
> 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@...il.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
>
Powered by blists - more mailing lists