[v5,00/11] mtd: cfi_cmdset_0002: Fix flash write issue for OpenWrt Project
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Message ID 20190205140759.2360-1-ikegami_to@yahoo.co.jp
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  • mtd: cfi_cmdset_0002: Fix flash write issue for OpenWrt Project
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Tokunori Ikegami Feb. 5, 2019, 2:07 p.m. UTC
The change is based on the fix for flash erase to use chip_good() done in the past.
And it is fixed as same way in the OpenWrt Project as below.
  <https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=ddc11c3932c7b7b7df7d5fbd48f207e77619eaa7>
Also includes some refactoring changes.

Signed-off-by: Tokunori Ikegami <ikegami_to@yahoo.co.jp>
Cc: Fabio Bettoni <fbettoni@gmail.com>
Co: Hauke Mehrtens <hauke@hauke-m.de>
Co: Koen Vandeputte <koen.vandeputte@ncentric.com>
Cc: Chris Packham <chris.packham@alliedtelesis.co.nz>
Cc: Joakim Tjernlund <Joakim.Tjernlund@infinera.com>
Cc: linux-mtd@lists.infradead.org

Tokunori Ikegami (11):
  mtd: cfi_cmdset_0002: Use chip_good() to retry in do_write_oneword()
  mtd: cfi_cmdset_0002: Remove chip_ready() from do_write_buffer()
  mtd: cfi_cmdset_0002: Remove goto statement from do_write_buffer()
  mtd: cfi_cmdset_0002: Call xip_enable() once only in
    do_write_buffer().
  mtd: cfi_cmdset_0002: Split do_write_oneword() to reduce function size
  mtd: cfi_cmdset_0002: Split do_write_oneword() op_done goto statement
  mtd: cfi_cmdset_0002: Remove op_done goto statement from
    do_write_oneword()
  mtd: cfi_cmdset_0002: Remove retry goto statement from
    do_write_oneword()
  mtd: cfi_cmdset_0002: Split write-to-buffer-reset sequence
  mtd: cfi_cmdset_0002: Split to wait write buffer to check if completed
  mtd: cfi_cmdset_0002: Split do_write_oneword() to reduce exit paths

 drivers/mtd/chips/cfi_cmdset_0002.c | 274 ++++++++++++++++++++++--------------
 1 file changed, 168 insertions(+), 106 deletions(-)
 mode change 100644 => 100755 drivers/mtd/chips/cfi_cmdset_0002.c

Comments

Vignesh Raghavendra May 20, 2019, 9:45 p.m. UTC | #1
Hi,

On 05/02/19 7:37 PM, Tokunori Ikegami wrote:
> The change is based on the fix for flash erase to use chip_good() done in the past.
> And it is fixed as same way in the OpenWrt Project as below.
>   <https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=ddc11c3932c7b7b7df7d5fbd48f207e77619eaa7>
> Also includes some refactoring changes.
> 

This series needs to be rebased on top of Liu Jian's fixes in master.
Please rebase and resend for review. Thanks!

> Signed-off-by: Tokunori Ikegami <ikegami_to@yahoo.co.jp>
> Cc: Fabio Bettoni <fbettoni@gmail.com>
> Co: Hauke Mehrtens <hauke@hauke-m.de>
> Co: Koen Vandeputte <koen.vandeputte@ncentric.com>
> Cc: Chris Packham <chris.packham@alliedtelesis.co.nz>
> Cc: Joakim Tjernlund <Joakim.Tjernlund@infinera.com>
> Cc: linux-mtd@lists.infradead.org
> 
> Tokunori Ikegami (11):
>   mtd: cfi_cmdset_0002: Use chip_good() to retry in do_write_oneword()
>   mtd: cfi_cmdset_0002: Remove chip_ready() from do_write_buffer()
>   mtd: cfi_cmdset_0002: Remove goto statement from do_write_buffer()
>   mtd: cfi_cmdset_0002: Call xip_enable() once only in
>     do_write_buffer().
>   mtd: cfi_cmdset_0002: Split do_write_oneword() to reduce function size
>   mtd: cfi_cmdset_0002: Split do_write_oneword() op_done goto statement
>   mtd: cfi_cmdset_0002: Remove op_done goto statement from
>     do_write_oneword()
>   mtd: cfi_cmdset_0002: Remove retry goto statement from
>     do_write_oneword()
>   mtd: cfi_cmdset_0002: Split write-to-buffer-reset sequence
>   mtd: cfi_cmdset_0002: Split to wait write buffer to check if completed
>   mtd: cfi_cmdset_0002: Split do_write_oneword() to reduce exit paths
> 
>  drivers/mtd/chips/cfi_cmdset_0002.c | 274 ++++++++++++++++++++++--------------
>  1 file changed, 168 insertions(+), 106 deletions(-)
>  mode change 100644 => 100755 drivers/mtd/chips/cfi_cmdset_0002.c
>