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Tue, 23 Oct 2018 09:37:00 +0000 Received: from VI1PR04MB1038.eurprd04.prod.outlook.com ([fe80::d887:3c96:479a:4123]) by VI1PR04MB1038.eurprd04.prod.outlook.com ([fe80::d887:3c96:479a:4123%3]) with mapi id 15.20.1228.032; Tue, 23 Oct 2018 09:37:00 +0000 From: Yogesh Narayan Gaur To: "linux-mtd@lists.infradead.org" , "boris.brezillon@bootlin.com" , "broonie@kernel.org" , "marek.vasut@gmail.com" , "vigneshr@ti.com" , "linux-spi@vger.kernel.org" , "devicetree@vger.kernel.org" CC: "robh@kernel.org" , "mark.rutland@arm.com" , "shawnguo@kernel.org" , "linux-arm-kernel@lists.infradead.org" , "computersforpeace@gmail.com" , "frieder.schrempf@exceet.de" , "linux-kernel@vger.kernel.org" , Yogesh Narayan Gaur Subject: [PATCH v3 0/7] spi: add support for octo mode Thread-Topic: [PATCH v3 0/7] spi: add support for octo mode Thread-Index: AQHUarPy2Onn3VDDqEW4evXD57qOxw== Date: Tue, 23 Oct 2018 09:37:00 +0000 Message-ID: <1540287311-1572-1-git-send-email-yogeshnarayan.gaur@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: SG2PR04CA0141.apcprd04.prod.outlook.com (2603:1096:3:16::25) To VI1PR04MB1038.eurprd04.prod.outlook.com (2a01:111:e400:5092::16) authentication-results: spf=none (sender IP is ) smtp.mailfrom=yogeshnarayan.gaur@nxp.com; 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received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: G7maPjdzlokfAvxS1ZKmga9qw9iojTx6FdwQ1jbtKe7RYaIuJrrZtfp97WeOZsQIgXxSbxIUYRdmTfXxfUM7//r+Qe+g8jAblxvKvQHoYfrtUBXmd2P/hdy0YICFvAVa4PVH5PNkwKsICkuMyn6o+6pOQM6zXXoM3jwdYh9SNlqg0Cergk929fF1IprSErj5eNzEoS8r6U8slB80jiEDMeEGJxUxY1fskxs98o3rrdJ+BrdgswxbW+zoS/adA+ydnSk1O3yuS7kOABE75N0zaD25e5MtuW9UaXDaiQXR3+BfYo+DIcMXGkrNzDV/lcQtfHR2olZZXzzry0OcyjYONgzJnIOFb45Cb+UyDX79p3w= 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: 87cf1c97-f489-41b3-fddc-08d638cb14b3 X-MS-Exchange-CrossTenant-originalarrivaltime: 23 Oct 2018 09:37:00.4486 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB5022 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for octo 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 octo mode flags and parsing of same in spi driver. * Add parsing logic for spi-mem framework and m25p80.c device file. * Add opcodes for octo I/O commands in spi-nor framework, Read and Write pr= oto 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 octo mode in nxp-fspi driver [2]. * Define binding property 'spi-rx/tx-bus-width' for LX2160ARDB target [2]. Cherry pick below 2 patches (from: https://git.kernel.org/pub/scm/linux/ker= nel/git/broonie/spi.git): c639f871febe6667d9afce28108c634e5636c735 spi: spi-mem: Fix inverted log= ic in op sanity check db122eb8a749a1eff038f9a282c620ab16c4be1d spi: spi-mem: Add extra sanity= checks on the op param 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 [2] https://patchwork.ozlabs.org/project/linux-mtd/list/?series=3D72181 Yogesh Gaur (7): spi: add support for octo mode I/O data transfer spi: spi-mem: add support for octo mode I/O data transfer mtd: spi-nor: add opcodes for octo Read/Write commands mtd: spi-nor: add octo read flag for flash mt35xu512aba mtd: m25p80: add support of octo mode I/O transfer spi: nxp-fspi: add octo mode flag bit for octal support arm64: dts: lx2160a: update fspi node 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. arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts | 4 ++++ drivers/mtd/devices/m25p80.c | 9 ++++++++- drivers/mtd/spi-nor/spi-nor.c | 15 ++++++++++++++- 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 | 2 ++ 8 files changed, 56 insertions(+), 7 deletions(-) --=20 2.7.4