Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932149AbaAHOaL (ORCPT ); Wed, 8 Jan 2014 09:30:11 -0500 Received: from 15.mo3.mail-out.ovh.net ([87.98.150.177]:53622 "EHLO mo3.mail-out.ovh.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756867AbaAHOaF (ORCPT ); Wed, 8 Jan 2014 09:30:05 -0500 From: Boris BREZILLON To: Maxime Ripard , Rob Landley , Russell King , David Woodhouse , Grant Likely Cc: 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, Boris BREZILLON Subject: [RFC PATCH 2/9] mtd: nand: define struct nand_timings Date: Wed, 8 Jan 2014 15:21:57 +0100 Message-Id: <1389190924-26226-3-git-send-email-b.brezillon@overkiz.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1389190924-26226-1-git-send-email-b.brezillon@overkiz.com> References: <1389190924-26226-1-git-send-email-b.brezillon@overkiz.com> X-Ovh-Tracer-Id: 6882063181093959871 X-Ovh-Remote: 80.245.18.66 () X-Ovh-Local: 213.186.33.20 (ns0.ovh.net) X-OVH-SPAMSTATE: OK X-OVH-SPAMSCORE: -100 X-OVH-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeejtddrfedtucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd X-Spam-Check: DONE|U 0.5/N X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeejtddrfedtucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd 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 | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 9e6c8f9..3dda312 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -805,4 +805,48 @@ static inline bool nand_is_slc(struct nand_chip *chip) { return chip->bits_per_cell == 1; } + +/** + * struct nand_timings - NAND chip timing definitions + * + * This struct defines the timing requirements of a NAND chip. + * These informations can be found in every NAND datasheets. + * + * All fields are optional and depend on the hardware driver requirements + */ +struct nand_timings { + u32 tCLS_min; + u32 tCLH_min; + u32 tCS_min; + u32 tCH_min; + u32 tWP_min; + u32 tALS_min; + u32 tALH_min; + u32 tDS_min; + u32 tDH_min; + u32 tWC_min; + u32 tWH_min; + u32 tR_max; + u32 tAR_min; + u32 tCLR_min; + u32 tRR_min; + u32 tRP_min; + u32 tWB_max; + u32 tRC_min; + u32 tREA_max; + u32 tRHZ_max; + u32 tCHZ_max; + u32 tRHOH_min; + u32 tRLOH_min; + u32 tCOH_min; + u32 tREH_min; + u32 tWHR_min; + u32 tRHW_min; + u32 tIR_min; + u32 tCR_min; + u32 tADL_min; + u32 tRST_max; + 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/