From patchwork Wed Jan 29 14:34:14 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Boris Brezillon X-Patchwork-Id: 315067 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:770:15f::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 19EBB2C00B9 for ; Thu, 30 Jan 2014 01:42:48 +1100 (EST) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1W8WJ3-0005CV-F2; Wed, 29 Jan 2014 14:40:05 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1W8WH9-0005Rt-KC; Wed, 29 Jan 2014 14:37:59 +0000 Received: from mail-ea0-f179.google.com ([209.85.215.179]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1W8WEn-000551-M1; Wed, 29 Jan 2014 14:35:35 +0000 Received: by mail-ea0-f179.google.com with SMTP id q10so798637ead.24 for ; Wed, 29 Jan 2014 06:34:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; bh=BRV02NogC2LKgvep3O3lk0aNuaJP28AMia2VGi2+ejM=; b=hduzzrGJLZYd0Q342kp3lCvk+0RX5vF1hbF+pfHOtO2ifXfF2y0I6AQ3behhTErR6K m71WNq7xjwwb7uG/J0qCMULILATgafETeRvgBqyEsUoMTd0N+OGesoXHjlNhf5iTDHVi pSDBgsCSzMFtUcejK5Ko8vHfWV4rhwyeGUFh3TuKXEaAOIY2jyL91eIXsxcrmncnLz96 vP579FkvRQM5XyHGTMS37P8/D9tr/74Q8klkhQJFHGhpp4vFSBhGifLTTHa/FiJ8XCDi XgLhXTpuON4KTkI0m5AnmQvny0K73FQAfWeXtu+m+fl7h8dMDNKpLpgFeqaQlnCuz9M/ q4dQ== X-Received: by 10.14.69.200 with SMTP id n48mr4118854eed.54.1391006077838; Wed, 29 Jan 2014 06:34:37 -0800 (PST) Received: from bbrezillon-laptop.int.overkiz.com ([80.245.18.66]) by mx.google.com with ESMTPSA id o43sm9435426eef.12.2014.01.29.06.34.36 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 29 Jan 2014 06:34:37 -0800 (PST) From: Boris BREZILLON To: Maxime Ripard , Rob Landley , Russell King , David Woodhouse , Grant Likely , Brian Norris , Jason Gunthorpe , Arnd Bergmann Subject: =?UTF-8?q?=5BRFC=20PATCH=20v2=2004/14=5D=20mtd=3A=20nand=3A=20define=20struct=20nand=5Ftimings?= Date: Wed, 29 Jan 2014 15:34:14 +0100 Message-Id: <1391006064-28890-5-git-send-email-b.brezillon.dev@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1391006064-28890-1-git-send-email-b.brezillon.dev@gmail.com> References: <1391006064-28890-1-git-send-email-b.brezillon.dev@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140129_093534_004698_6AB3BD66 X-CRM114-Status: GOOD ( 10.16 ) X-Spam-Score: -2.7 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.215.179 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (b.brezillon.dev[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature Cc: devicetree@vger.kernel.org, Boris BREZILLON , linux-doc@vger.kernel.org, dev@linux-sunxi.org, linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Define a struct containing the standard NAND timings as described in NAND datasheets. Signed-off-by: Boris BREZILLON --- include/linux/mtd/nand.h | 49 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 9e6c8f9..67f0829 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -805,4 +805,53 @@ static inline bool nand_is_slc(struct nand_chip *chip) { return chip->bits_per_cell == 1; } + +/** + * struct nand_sdr_timings - SDR NAND chip timings + * + * This struct defines the timing requirements of a SDR NAND chip. + * These informations can be found in every NAND datasheets and the timings + * meaning are described in the ONFI specifications: + * www.onfi.org/~/media/ONFI/specs/onfi_3_1_spec.pdf‎ (chapter 4.15 Timing + * Parameters) + * + */ + +struct nand_sdr_timings { + u32 tALH_min; + u32 tADL_min; + u32 tALS_min; + u32 tAR_min; + u32 tCEA_max; + u32 tCEH_min; + u32 tCH_min; + u32 tCHZ_max; + u32 tCLH_min; + u32 tCLR_min; + u32 tCLS_min; + u32 tCOH_min; + u32 tCS_min; + u32 tDH_min; + u32 tDS_min; + u32 tFEAT_max; + u32 tIR_min; + u32 tITC_max; + u32 tRC_min; + u32 tREA_max; + u32 tREH_min; + u32 tRHOH_min; + u32 tRHW_min; + u32 tRHZ_max; + u32 tRLOH_min; + u32 tRP_min; + u32 tRR_min; + u64 tRST_max; + u32 tWB_max; + u32 tWC_min; + u32 tWH_min; + u32 tWHR_min; + u32 tWP_min; + u32 tWW_min; +}; + #endif /* __LINUX_MTD_NAND_H */