Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752715AbaA2Oem (ORCPT ); Wed, 29 Jan 2014 09:34:42 -0500 Received: from mail-ea0-f179.google.com ([209.85.215.179]:36809 "EHLO mail-ea0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752645AbaA2Oej (ORCPT ); Wed, 29 Jan 2014 09:34:39 -0500 From: Boris BREZILLON To: Maxime Ripard , Rob Landley , Russell King , David Woodhouse , Grant Likely , Brian Norris , Jason Gunthorpe , Arnd Bergmann Cc: Boris BREZILLON , devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mtd@lists.infradead.org, dev@linux-sunxi.org 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 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.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 */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/