From: Yogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com>
To: "linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
"boris.brezillon@bootlin.com" <boris.brezillon@bootlin.com>,
"broonie@kernel.org" <broonie@kernel.org>,
"marek.vasut@gmail.com" <marek.vasut@gmail.com>,
"vigneshr@ti.com" <vigneshr@ti.com>,
"linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Cc: "tudor.ambarus@microchip.com" <tudor.ambarus@microchip.com>,
"robh@kernel.org" <robh@kernel.org>,
"mark.rutland@arm.com" <mark.rutland@arm.com>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"computersforpeace@gmail.com" <computersforpeace@gmail.com>,
"frieder.schrempf@exceet.de" <frieder.schrempf@exceet.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Yogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com>
Subject: [PATCH v7 0/5] spi: add support for octal mode
Date: Tue, 15 Jan 2019 10:05:04 +0000 [thread overview]
Message-ID: <1547546584-5254-1-git-send-email-yogeshnarayan.gaur@nxp.com> (raw)
Add support for octal mode IO data transfer.
Micron flash, mt35xu512aba, supports octal mode data transfer and
NXP FlexSPI controller supports 8 data lines for data transfer (Rx/Tx).
Patch series
* Add parsing logic for m25p80.c device file.
* Add opcodes for octal I/O commands in spi-nor framework, Read and Write proto for (1-1-8/1-8-8) mode.
Opcodes are added as per octal data IO commands required for mt35xu512aba flash.
* Add mode bit required for octal mode in nxp-fspi driver [1].
* Define binding property 'spi-rx/tx-bus-width' for LX2160ARDB target [1].
Tested on LX2160ARDB target with nxp-fspi driver, below are
Read performance number of 1-1-1 and 1-1-8 read protocol.
root@lxxx:~# cat /proc/mtd
dev: size erasesize name
mtd0: 04000000 00001000 "spi0.0"
mtd1: 04000000 00001000 "spi0.1"
root@lxxx:~# time mtd_debug read /dev/mtd0 0x0 0x1000000 0read
Copied 16777216 bytes from address 0x00000000 in flash to 0read
real 0m2.792s
user 0m0.000s
sys 0m2.790s
root@lxxx:~# time mtd_debug read /dev/mtd1 0x0 0x1000000 0read
Copied 16777216 bytes from address 0x00000000 in flash to 0read
real 0m0.441s
user 0m0.000s
sys 0m0.440s
root@ls1012ardb:~#
Flash device MTD0 configured in 1-1-1 protocol.
Flash device MTD1 configured in 1-1-8 protocol.
[1] https://patchwork.ozlabs.org/project/linux-mtd/list/?series=86130
Changes for v7:
- Rebase on top of SPI tree
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git/
branch: for-next
- Drop below patches from series as these have already been applied.
'spi-add-support-for-octal-mode-I-O-data-transfer.patch' and
'spi-spi-mem-add-support-for-octal-mode-I-O-data-tran.patch'
- Add r-o-b tag of Tudor Ambarus for
patch 'mtd-spi-nor-add-opcodes-for-octal-Read-Write-command.patch'
Changes for v6:
- Correct S-o-b tag with full author name as 'Yogesh Narayan Gaur'.
- Rebase on top of v4.20-rc5.
Changes for v5:
- Modified string 'octo' as 'octal' in all patches.
Changes for v4:
- Rebase on top of v4.20-rc2.
- Modify octo entries enum value in spi.h.
Changes for v3:
- Add octo mode support in spi_setup().
- Rename all patches with 'octal' string modified as 'octo'.
Changes for v2:
- Incorporated review comments of Boris and Vignesh.
Yogesh Narayan Gaur (5):
mtd: spi-nor: add opcodes for octal Read/Write commands
mtd: spi-nor: add octal read flag for flash mt35xu512aba
mtd: m25p80: add support of octal mode I/O transfer
spi: nxp-fspi: add octal mode flag bit for octal support
arm64: dts: lx2160a: update fspi node
.../boot/dts/freescale/fsl-lx2160a-rdb.dts | 4 ++++
drivers/mtd/devices/m25p80.c | 9 ++++++++-
drivers/mtd/spi-nor/spi-nor.c | 19 ++++++++++++++++---
drivers/spi/spi-nxp-fspi.c | 4 ++--
include/linux/mtd/spi-nor.h | 16 ++++++++++++----
5 files changed, 42 insertions(+), 10 deletions(-)
--
2.17.1
next reply other threads:[~2019-01-15 10:05 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-15 10:05 Yogesh Narayan Gaur [this message]
2019-01-15 10:05 ` [PATCH v7 1/5] mtd: spi-nor: add opcodes for octal Read/Write commands Yogesh Narayan Gaur
2019-01-19 15:42 ` [v7,1/5] " Boris Brezillon
2019-01-15 10:05 ` [PATCH v7 2/5] mtd: spi-nor: add octal read flag for flash mt35xu512aba Yogesh Narayan Gaur
2019-01-16 6:19 ` Tudor.Ambarus
2019-01-19 15:42 ` [v7,2/5] " Boris Brezillon
2019-01-15 10:05 ` [PATCH v7 3/5] mtd: m25p80: add support of octal mode I/O transfer Yogesh Narayan Gaur
2019-01-17 7:16 ` Tudor.Ambarus
2019-01-19 15:41 ` [v7,3/5] " Boris Brezillon
2019-01-15 10:05 ` [PATCH v7 4/5] spi: nxp-fspi: add octal mode flag bit for octal support Yogesh Narayan Gaur
2019-01-28 12:26 ` Mark Brown
2019-01-28 12:30 ` Mark Brown
2019-01-15 10:05 ` [PATCH v7 5/5] arm64: dts: lx2160a: update fspi node Yogesh Narayan Gaur
2019-02-01 3:51 ` Shawn Guo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1547546584-5254-1-git-send-email-yogeshnarayan.gaur@nxp.com \
--to=yogeshnarayan.gaur@nxp.com \
--cc=boris.brezillon@bootlin.com \
--cc=broonie@kernel.org \
--cc=computersforpeace@gmail.com \
--cc=devicetree@vger.kernel.org \
--cc=frieder.schrempf@exceet.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=linux-spi@vger.kernel.org \
--cc=marek.vasut@gmail.com \
--cc=mark.rutland@arm.com \
--cc=robh@kernel.org \
--cc=shawnguo@kernel.org \
--cc=tudor.ambarus@microchip.com \
--cc=vigneshr@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).