Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
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:     "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 v5 0/7] spi: add support for octal mode
Thread-Topic: [PATCH v5 0/7] spi: add support for octal mode
Thread-Index: AQHUiuOjeSgB/5zRPUqi536teiWNPA==
Date:   Mon, 3 Dec 2018 08:39:00 +0000
Message-ID: <1543826226-30898-1-git-send-email-yogeshnarayan.gaur@nxp.com>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-messagesentrepresentingtype: 1
x-originating-ip: [14.143.30.134]
x-ms-publictraffictype: Email
x-microsoft-exchange-diagnostics: 1;VI1PR04MB4718;6:gCilAnZ9PJcZ9g7HN5N+0WbphrR1hT3R84tkdzTdXFGc1hsaVWh9WfrAn6A+MLOawTO/SDPuyXX7Vz6BoGo8O3oL3EqRncuD6EeuAlG/A30ovkdcTZM0WhDrJp509fJQyhsk1fLl5SluqzAA4Vq6Xl2oc5zMrtQ4XOgurvsZ+g+WPyG6c6plSf1mVXFpO4GpgJmO49Dkz+KEOIs8SHcCBLtRScoP5LQ8HXTP3CBKm0BF3UJn0ypbyx3W1S7OyGEwQUqMya4ApKl2c/od61F9KgkDVHMqUsr6aHgp3ogbMJCjfvZ0TVwcNP/fcbNOgyTv8oh2yx/LuboRIItSAdUiyzuCmK3t2euqdMqSZ7COlo7VUQe8hiF2qVF9lLaDhAO4rQpBykaej2ZaIT/z1qdNeDweyZaJmp89fMciMt/R2ZCp4kUO5F/JEGeR/KiIQCW3kEmTaUoRgLHxO6bDhIkLLA==;5:X8OoObgnkqUosnA4POEPWy53gWNfFvmPaqZMnV1qAe04P+IwOVQIqe8s5YVDw62c2LRsYyLZonuX1s2AVdboxmqmNJNspONPI6yI0IZS8RvnzWfVNG//T1b2A1Fn41/ZuTEhWpJSeiDOilzHXBeNOVraxy0b0jwdCO44+mmjA0s=;7:DLr30goRMgozu54zEdpyUuem2VTzHbywMmjuRWw28B495KfKTiB/V0jZPYQ2ZS0Ahb/CatgWQv/dGgoFVuESBGvH34yfzjX9PgBJcc2mzAfNkM1omwP1GIrfstsBZxlJiunYDe/kEpIZacTj8+oR9A==
x-ms-office365-filtering-correlation-id: b61a3a52-c4db-4ab3-0b01-08d658fac583
x-ms-office365-filtering-ht: Tenant
x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390098)(7020095)(4652040)(8989299)(5600074)(711020)(4618075)(4534185)(7168020)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7153060)(7193020);SRVR:VI1PR04MB4718;
x-ms-traffictypediagnostic: VI1PR04MB4718:
x-microsoft-antispam-prvs: <VI1PR04MB4718A8F81A6EC4640B21155699AE0@VI1PR04MB4718.eurprd04.prod.outlook.com>
x-ms-exchange-senderadcheck: 1
x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(6040522)(2401047)(8121501046)(5005006)(93006095)(93001095)(3231455)(999002)(944501493)(52105112)(3002001)(10201501046)(6055026)(148016)(149066)(150057)(6041310)(20161123562045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123564045)(20161123560045)(20161123558120)(201708071742011)(7699051)(76991095);SRVR:VI1PR04MB4718;BCL:0;PCL:0;RULEID:;SRVR:VI1PR04MB4718;
x-forefront-prvs: 08756AC3C8
x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(346002)(376002)(396003)(136003)(366004)(39860400002)(199004)(189003)(7736002)(99286004)(6486002)(305945005)(6306002)(6512007)(6506007)(53936002)(66066001)(386003)(105586002)(106356001)(68736007)(256004)(71190400001)(71200400001)(5660300001)(110136005)(55236004)(14444005)(54906003)(7416002)(14454004)(86362001)(478600001)(6116002)(3846002)(966005)(25786009)(186003)(2201001)(2501003)(97736004)(2906002)(81156014)(81166006)(6436002)(8676002)(4326008)(486006)(78486014)(36756003)(102836004)(52116002)(26005)(39060400002)(2616005)(8936002)(316002)(476003);DIR:OUT;SFP:1101;SCL:1;SRVR:VI1PR04MB4718;H:VI1PR04MB5726.eurprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1;
received-spf: None (protection.outlook.com: nxp.com does not designate
 permitted sender hosts)
x-microsoft-antispam-message-info: 8PWkg90hBL2XILyrvQ1IXgpz1XvUw/nxUS/6sSRxIiXpmDWebiGUO69peK4KpB04iyhE4Bzs0kJDWmtwLk5zhd3dYg5oUFy+YcNAfBX0ZJYHlFPKJncXJSJOfaOz0MWlVNiOlUiS2nw/vD/rE108UuAaLYnsR6f6GcGb4HIOKM+orZ0hPhNw6vUN7ksZPn0NNoCu8XlSnj0Yl/HtOTGn1vVDcKyzS2F1wCDr/LLl9duSYLXsAlrFSxcZjpDzu+qvePyAoGWjMfLVLmG4liAc7qVFo92+XF4ADfGIMQguknIUA2ZSUyZfKF195ir4eSulR6SXd5x/mkF7aii98dl26udl5oNDsaCI++Jd7wrjh/w=
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-OriginatorOrg: nxp.com
X-MS-Exchange-CrossTenant-Network-Message-Id: b61a3a52-c4db-4ab3-0b01-08d658fac583
X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Dec 2018 08:39:00.4105
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635
X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB4718
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

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 support for octal mode flags and parsing of same in spi driver.
* Add parsing logic for spi-mem framework and m25p80.c device file.
* Add opcodes for octal I/O commands in spi-nor framework, Read and Write p=
roto for (1-1-8/1-8-8) mode.
  Opcodes are added as per octal data IO commands required for mt35xu512aba=
 [1] flash.
* Add mode bit required for octal mode in nxp-fspi driver [2].
* Define binding property 'spi-rx/tx-bus-width' for LX2160ARDB target [2].

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=3D70384&sta=
te=3D*
[2] https://patchwork.ozlabs.org/project/linux-mtd/list/?series=3D76402

Yogesh Gaur (7):
  spi: add support for octal mode I/O data transfer
  spi: spi-mem: add support for octal mode I/O data transfer
  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

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.

 drivers/mtd/devices/m25p80.c                      |  9 ++++++++-
 drivers/mtd/spi-nor/spi-nor.c                     | 19 ++++++++++++++++---
 drivers/spi/spi-mem.c                             |  9 ++++++++-
 drivers/spi/spi-nxp-fspi.c                        |  4 ++--
 drivers/spi/spi.c                                 | 12 ++++++++++--
 include/linux/mtd/spi-nor.h                       |  8 ++++++++
 include/linux/spi/spi.h                           |  4 +++-
 8 files changed, 59 insertions(+), 10 deletions(-)

--=20
2.7.4