From patchwork Mon Mar 18 11:18:48 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huang Shijie X-Patchwork-Id: 228474 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:4978:20e::2]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 3A74E2C0145 for ; Mon, 18 Mar 2013 23:28:26 +1100 (EST) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UHZ9i-0006Yz-Pi; Mon, 18 Mar 2013 12:27:10 +0000 Received: from ch1ehsobe005.messaging.microsoft.com ([216.32.181.185] helo=ch1outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UHY9B-0008Qd-66 for linux-mtd@lists.infradead.org; Mon, 18 Mar 2013 11:22:34 +0000 Received: from mail232-ch1-R.bigfish.com (10.43.68.230) by CH1EHSOBE018.bigfish.com (10.43.70.68) with Microsoft SMTP Server id 14.1.225.23; Mon, 18 Mar 2013 11:22:30 +0000 Received: from mail232-ch1 (localhost [127.0.0.1]) by mail232-ch1-R.bigfish.com (Postfix) with ESMTP id 44B493E01C1; Mon, 18 Mar 2013 11:22:30 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 5 X-BigFish: VS5(z616jzzz1f42h1ee6h1de0h1202h1e76h1d1ah1d2ah1082kzz8275bhz2dh2a8h668h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1155h) Received: from mail232-ch1 (localhost.localdomain [127.0.0.1]) by mail232-ch1 (MessageSwitch) id 1363605748338725_21898; Mon, 18 Mar 2013 11:22:28 +0000 (UTC) Received: from CH1EHSMHS021.bigfish.com (snatpool1.int.messaging.microsoft.com [10.43.68.251]) by mail232-ch1.bigfish.com (Postfix) with ESMTP id 504F3A8004B; Mon, 18 Mar 2013 11:22:28 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CH1EHSMHS021.bigfish.com (10.43.70.21) with Microsoft SMTP Server (TLS) id 14.1.225.23; Mon, 18 Mar 2013 11:22:28 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-001.039d.mgd.msft.net (10.84.1.13) with Microsoft SMTP Server (TLS) id 14.2.328.11; Mon, 18 Mar 2013 11:22:27 +0000 Received: from shlinux2.ap.freescale.net (shlinux2.ap.freescale.net [10.192.224.44]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id r2IBM63A021313; Mon, 18 Mar 2013 04:22:24 -0700 From: Huang Shijie To: Subject: [PATCH 05/11] mtd: add a helper to get the supported features for ONFI nand Date: Mon, 18 Mar 2013 19:18:48 +0800 Message-ID: <1363605534-24776-6-git-send-email-b32955@freescale.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1363605534-24776-1-git-send-email-b32955@freescale.com> References: <1363605534-24776-1-git-send-email-b32955@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130318_072233_920848_9DC012C3 X-CRM114-Status: GOOD ( 10.75 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [216.32.181.185 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: dedekind1@gmail.com, matthieu.castet@parrot.com, Huang Shijie , linux-mtd@lists.infradead.org, computersforpeace@gmail.com, Huang Shijie 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 From: Huang Shijie add a helper to get the supported features for ONFI nand. Also add the neccessary macros. Signed-off-by: Huang Shijie --- include/linux/mtd/nand.h | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 94ae957..2c5a2e0 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -195,6 +195,11 @@ typedef enum { /* Keep gcc happy */ struct nand_chip; +/* ONFI features */ +#define ONFI_FEATURE_16_BIT_BUS (1 << 0) +#define ONFI_FEATURE_EXT_PARAM_PAGE (1 << 7) +#define ONFI_FEATURE_UNKNOWN (1 << 15) + /* ONFI timing mode, used in both asynchronous and synchronous mode */ #define ONFI_TIMING_MODE_0 (1 << 0) #define ONFI_TIMING_MODE_1 (1 << 1) @@ -743,6 +748,14 @@ struct platform_nand_chip *get_platform_nandchip(struct mtd_info *mtd) return chip->priv; } +/* return the supported features. */ +static inline int onfi_get_feature(struct nand_chip *chip) +{ + if (!chip->onfi_version) + return ONFI_FEATURE_UNKNOWN; + return le16_to_cpu(chip->onfi_params.features); +} + /* return the supported asynchronous timing mode. */ static inline int onfi_get_async_timing_mode(struct nand_chip *chip) {