Re: [PATCH v3 0/4] MTK NAND driver improvements and fixes

[xiaolei li <xiaolei.li@xxxxxxxxxxxx>]

Hi Miquel,

Sorry to bother you, but may I ask if it is fine to accept this patch
set now, patches all with your review.

Thanks,
Xiaolei

On Tue, 2019-05-07 at 18:25 +0800, Xiaolei Li wrote:
> The following patch set mainly contains:
> * Fix low level time calculation of read/write cycle to meet tRC_min
>   and tWC_min requirements.
> * Refine RE# pulse width calculation and data sampling to improve read
>   performance.
> * Add CS validity check.
> * Fix oob buffer pointer wrongly setting.
> 
> Changes on v3 relative to:
> --------------------
> 
> tree    : https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git/
> branch  : nand/next
> commit  :
>         'commit 1c14fe2167ef ("mtd: nandsim: switch to exec_op interface")
> 
> Patch v3:
> ---------
> - Fix some comment style.
> - Format patch base branch: nand/next
> - Pend to sent patch "mtd: rawnand: mtk: Setup empty page threshold
>   correctly", because it seems that we should confirm this change has no
>   side effect and need more test.
> 
> Patch v2:
> ---------
> - Fix type
> - Reference correct faulty patch
> - Refine code to do calculation and condition in separate steps
> - Fix empty threshold calculation
> 
> Tests:
> ------
> 
> * ubifs and jffs2 are validated on NAND device MT29F16G08ADBCA by
>   'dd' command.
> * all drivers/mtd/tests/* pass.
> * speed test:
>   eraseblock write speed is 11087 KiB/s
>   eraseblock read speed is 19986 KiB/s
>   page write speed is 10689 KiB/s
>   page read speed is 18724 KiB/s
>   2 page write speed is 10611 KiB/s
>   2 page read speed is 18713 KiB/s
>   erase speed is 103696 KiB/s
>   2x multi-block erase speed is 354248 KiB/s
>   4x multi-block erase speed is 350459 KiB/s
>   8x multi-block erase speed is 356173 KiB/s
>   16x multi-block erase speed is 356173 KiB/s
>   32x multi-block erase speed is 358120 KiB/s
>   64x multi-block erase speed is 356173 KiB/s
> 
> Xiaolei Li (4):
>   mtd: rawnand: mtk: Correct low level time calculation of r/w cycle
>   mtd: rawnand: mtk: Improve data sampling timing for read cycle
>   mtd: rawnand: mtk: Add validity check for CE# pin setting
>   mtd: rawnand: mtk: Fix wrongly assigned OOB buffer pointer issue
> 
>  drivers/mtd/nand/raw/mtk_nand.c | 84 +++++++++++++++++++++++++++------
>  1 file changed, 70 insertions(+), 14 deletions(-)
> 



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