| Message ID | 20190430100250.28083-1-xiaolei.li@mediatek.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | MTK NAND driver improvements and fixes | expand |
Hi Xiaolei, Xiaolei Li <xiaolei.li@mediatek.com> wrote on Tue, 30 Apr 2019 18:02:45 +0800: > 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 and empty page threshold setting. > > Changes on v2 relative to: > -------------------- > > tree : git://git.infradead.org/linux-mtd.git > branch : master We just switched to a repository hosted on kernel.org: https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git/ nand/next is the branch for this kind of series. Thanks, Miquèl
Hi Miquel, On Tue, 2019-04-30 at 14:08 +0200, Miquel Raynal wrote: > Hi Xiaolei, > > Xiaolei Li <xiaolei.li@mediatek.com> wrote on Tue, 30 Apr 2019 18:02:45 > +0800: > > > 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 and empty page threshold setting. > > > > Changes on v2 relative to: > > -------------------- > > > > tree : git://git.infradead.org/linux-mtd.git > > branch : master > > We just switched to a repository hosted on kernel.org: > https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git/ > nand/next is the branch for this kind of series. OK. Good. Thanks for your sharing. > > Thanks, > Miquèl Thanks, Xiaolei
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 and empty page threshold setting. Changes on v2 relative to: -------------------- tree : git://git.infradead.org/linux-mtd.git branch : master commit : 'commit 3e35730dd754 ("mtd: powernv_flash: Fix device registration error") 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 (5): 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 mtd: rawnand: mtk: Setup empty page threshold correctly drivers/mtd/nand/raw/mtk_nand.c | 93 ++++++++++++++++++++++++++++----- 1 file changed, 79 insertions(+), 14 deletions(-)