From patchwork Fri May 29 07:36:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mason Yang X-Patchwork-Id: 1300493 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=mxic.com.tw Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20170209 header.b=KJ/YSlrb; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 49YGcQ34hqz9sSn for ; Fri, 29 May 2020 17:37:26 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=lycSq5/ipeMR+awR6h6X1Ey3mhHvA0PSatzbG0rv6Xs=; b=KJ/ YSlrb7A1KwiWFzxAHv6hhQvamRe11t5QN5jO0CMLGZryzZDiSSnbStmYchjgtLrWCcphhnKX/uGnC Qa7TyJECoF+vYDg15WAYbcYmznSFYj6BKO0nyPaVLNI1uqrbHJdIIhsOBqDO4HI2whFQ6tdVviIir 6P+SXHkHEu0EMCZ0mWcoGf1nIYmMTHhRB8niE+IKi/5YJSOUf4PO1nWONcLrVygODUgSRU42SANOI dFwNxwWRhm71QDjD2mZ9TpMPmahGTB9qJqS2b4JkaOj8qn6YHYlO4hkBbmECoiE4jWMxoii5bmQHx ouGLxCaNgQvvN570lRCub9qXyGbuiBA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jeZZl-0001Eg-Kb; Fri, 29 May 2020 07:37:09 +0000 Received: from twhmllg4.macronix.com ([122.147.135.202]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jeZZW-0000qp-Ev for linux-mtd@lists.infradead.org; Fri, 29 May 2020 07:36:56 +0000 Received: from localhost.localdomain ([172.17.195.96]) by TWHMLLG4.macronix.com with ESMTP id 04T7aHpu067318; Fri, 29 May 2020 15:36:17 +0800 (GMT-8) (envelope-from masonccyang@mxic.com.tw) From: Mason Yang To: broonie@kernel.org, tudor.ambarus@microchip.com, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, boris.brezillon@collabora.com, matthias.bgg@gmail.com Subject: [PATCH v4 0/7] mtd: spi-nor: add xSPI Octal DTR support Date: Fri, 29 May 2020 15:36:08 +0800 Message-Id: <1590737775-4798-1-git-send-email-masonccyang@mxic.com.tw> X-Mailer: git-send-email 1.9.1 X-MAIL: TWHMLLG4.macronix.com 04T7aHpu067318 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200529_003654_797398_D403BFB8 X-CRM114-Status: UNSURE ( 5.84 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [122.147.135.202 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: juliensu@mxic.com.tw, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org, Mason Yang , p.yadav@ti.com MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Hello, JESD216C has defined specification for Octal 8S-8S-8S and 8D-8D-8D. Based on JEDEC216C Basic Flash Parameter Table (BFPT) driver extract DWORD-18: command and command extension type. DWORD-20: Maximum operation speed of device in Octal mode. xSPI profile 1.0 table: DWORD-1: Read Fast command, the number of dummy cycles and address nbytes for Read Status Register command. DWORD-2: Read/Write volatile Register command for CFG Reg2. DWORD-4 and DWORD-5: dummy cycles used for various frequencies based on maximum speed of device from BFPT 20th DWORD. Ccommand sequences to change to octal DTR mode: The length of each command sequence is 8 per byte for single SPI mode and patching driver to parse and execute these sequences for octal DTR mode. By Vignesh's comments, this patches set is dependency on Pratyush's [1][2][5][7][8] and [10][12]. Tested on Macronix's Zynq PicoZed board with Macronix's SPI controller (spi-mxic.c) driver patched on mx25uw51245g Octal flash. [1] https://patchwork.ozlabs.org/project/linux-mtd/patch/20200525091544.17270-2-p.yadav@ti.com/ [2] https://patchwork.ozlabs.org/project/linux-mtd/patch/20200525091544.17270-3-p.yadav@ti.com/ [5] https://patchwork.ozlabs.org/project/linux-mtd/patch/20200525091544.17270-6-p.yadav@ti.com/ [7] https://patchwork.ozlabs.org/project/linux-mtd/patch/20200525091544.17270-8-p.yadav@ti.com/ [8] https://patchwork.ozlabs.org/project/linux-mtd/patch/20200525091544.17270-9-p.yadav@ti.com/ [10] https://patchwork.ozlabs.org/project/linux-mtd/patch/20200525091544.17270-11-p.yadav@ti.com/ [12] https://patchwork.ozlabs.org/project/linux-mtd/patch/20200525091544.17270-13-p.yadav@ti.com/ Summary of change log v4: Removed Pratyush's patches set part. v3: Add support command sequences to change octal DTR mode and based on part of Pratyush's patches set. v2: Parse BFPT & xSPI table for Octal 8D-8D-8D mode parameters and enable Octal mode in spi_nor_late_init_params(). Using Macros in spi_nor_spimem_read_data, spi_nor_spimem_write_data and so on by Vignesh comments. v1: Without parsing BFPT & xSPI profile 1.0 table and enter Octal 8D-8D-8D mode directly in spi_nor_fixups hooks. thnaks for your time and review. best regards, Mason Mason Yang (7): mtd: spi-nor: sfdp: get octal mode maximum speed from BFPT mtd: spi-nor: sfdp: parse xSPI Profile 1.0 table mtd: spi-nor: sfdp: parse command sequences to change octal DTR mode mtd: spi-nor: core: add configuration register 2 read & write support mtd: spi-nor: core: execute command sequences to change octal DTR mode spi: mxic: patch for octal DTR mode support mtd: spi-nor: macronix: Add Octal 8D-8D-8D supports for Macronix mx25uw51245g drivers/mtd/spi-nor/core.c | 151 ++++++++++++++++++++++++- drivers/mtd/spi-nor/core.h | 41 +++++++ drivers/mtd/spi-nor/macronix.c | 55 +++++++++ drivers/mtd/spi-nor/sfdp.c | 246 +++++++++++++++++++++++++++++++++++++++++ drivers/mtd/spi-nor/sfdp.h | 4 + drivers/spi/spi-mxic.c | 98 ++++++++++------ 6 files changed, 562 insertions(+), 33 deletions(-)