From patchwork Thu Feb 28 08:02:21 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Shiyan X-Patchwork-Id: 223804 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 947722C008C for ; Thu, 28 Feb 2013 19:03:39 +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 1UAyS1-0005AU-Nd; Thu, 28 Feb 2013 08:02:49 +0000 Received: from smtp17.mail.ru ([94.100.176.154]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UAyRm-00052v-HH for linux-mtd@lists.infradead.org; Thu, 28 Feb 2013 08:02:37 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mail.ru; s=mail; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=LTPOFgMVR/5SOIZPxtVoS/Vi4h9ssTgk8oT85TtpXWk=; b=QAhiwhDHv4IA48ILFG8dwyGap5lSvWPkKBZBx9iJHjoTZBty6c7IOP/MaW77f5XFJxFbXPYLvrcN8vjrMyM7umDC+4GUHiif7NCILtZgmqiI5EEPWur9iwtzjaIm2hHc; Received: from [217.119.30.118] (port=63100 helo=localhost.localdomain) by smtp17.mail.ru with esmtpa (envelope-from ) id 1UAyRh-000690-NF; Thu, 28 Feb 2013 12:02:29 +0400 From: Alexander Shiyan To: linux-mtd@lists.infradead.org Subject: [PATCH 3/3] mtd: nand_base: Use readsb/readsw/writesb/writesw if possible Date: Thu, 28 Feb 2013 12:02:21 +0400 Message-Id: <1362038541-22406-3-git-send-email-shc_work@mail.ru> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: <1362038541-22406-1-git-send-email-shc_work@mail.ru> References: <1362038541-22406-1-git-send-email-shc_work@mail.ru> X-Spam: Not detected X-Mras: Ok X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130228_030235_076197_398D2435 X-CRM114-Status: UNSURE ( 7.76 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.2 (-) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-1.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.8 RCVD_IN_SORBS_WEB RBL: SORBS: sender is an abusable web server [217.119.30.118 listed in dnsbl.sorbs.net] -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [94.100.176.154 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (shc_work[at]mail.ru) -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: Artem Bityutskiy , Brian Norris , David Woodhouse , Alexander Shiyan 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: , MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org This patch provide using readsb/readsw/writesb/writesw functions if it possible for particular platform. Signed-off-by: Alexander Shiyan --- drivers/mtd/nand/nand_base.c | 29 ++++++++++++++++++++++++----- 1 files changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 382b857..4efde01 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -214,11 +214,16 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr) */ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - int i; struct nand_chip *chip = mtd->priv; +#ifndef writesb + int i; + for (i = 0; i < len; i++) writeb(buf[i], chip->IO_ADDR_W); +#else + writesb(chip->IO_ADDR_W, buf, len); +#endif } /** @@ -231,11 +236,16 @@ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) */ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - int i; struct nand_chip *chip = mtd->priv; +#ifndef readsb + int i; + for (i = 0; i < len; i++) buf[i] = readb(chip->IO_ADDR_R); +#else + readsb(chip->IO_ADDR_R, buf, len); +#endif } /** @@ -248,14 +258,18 @@ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) */ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) { - int i; struct nand_chip *chip = mtd->priv; u16 *p = (u16 *) buf; len >>= 1; +#ifndef writesw + int i; + for (i = 0; i < len; i++) writew(p[i], chip->IO_ADDR_W); - +#else + writesw(chip->IO_ADDR_W, p, len); +#endif } /** @@ -268,13 +282,18 @@ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) */ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len) { - int i; struct nand_chip *chip = mtd->priv; u16 *p = (u16 *) buf; len >>= 1; +#ifndef readsw + int i; + for (i = 0; i < len; i++) p[i] = readw(chip->IO_ADDR_R); +#else + readsw(chip->IO_ADDR_R, p, len); +#endif } /**