From patchwork Sat Nov 26 18:06:18 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 699544 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2001:1868:205::9]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3tR2rc6Xmlz9s65 for ; Sun, 27 Nov 2016 06:22:24 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=nifty.com header.i=@nifty.com header.b="w6smGdK+"; dkim-atps=neutral Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1cAiX4-0003j2-Aj; Sat, 26 Nov 2016 19:21:06 +0000 Received: from merlin.infradead.org ([2001:4978:20e::2]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1cAiVm-0001lu-AK for linux-mtd@bombadil.infradead.org; Sat, 26 Nov 2016 19:19:46 +0000 Received: from conuserg-11.nifty.com ([210.131.2.78]) by merlin.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1cAhOB-0006Oa-St for linux-mtd@lists.infradead.org; Sat, 26 Nov 2016 18:07:54 +0000 Received: from grover.sesame (FL1-111-169-71-157.osk.mesh.ad.jp [111.169.71.157]) (authenticated) by conuserg-11.nifty.com with ESMTP id uAQI6Uf4018512; Sun, 27 Nov 2016 03:06:58 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-11.nifty.com uAQI6Uf4018512 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1480183619; bh=ZP6zHyl1Dlq2YP3RcOslIVtsbtitZm5uyLKci9r65Zg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=w6smGdK+0Cz6TUIhxX0VmAzhAZEYeDXf/Ax4pTZiPOjcfZ4TVpyp5GQinkmoEq5ys z/9YZNNWnFzVAiP/hRVoKbBuE8ovRpULfwfM6/UMIJCOQpWSFO/7w1qMewIsiMhd3u zycRfsGB5pWmE4MxjTApA4QxeqYIgx5bluaSetaC50SKK6xMK9ouYfAM3WdO4DD98+ UAx/1BxsXpcfpkQM+EGkDkizv0wYyTBM1Y19Lbg1ALFSHz5Dj3ClPfYNflPtvMskew N9r28DOW3cr78KWLuf2t2w5eAi6gpgRKOH7Q+eu3PqAQUh/sHcbfY9kr7M4WPxOwX9 j7h0MofAuSWgQ== X-Nifty-SrcIP: [111.169.71.157] From: Masahiro Yamada To: linux-mtd@lists.infradead.org Subject: [PATCH 32/39] mtd: nand: denali: remove unnecessary writes to ECC_CORRECTION Date: Sun, 27 Nov 2016 03:06:18 +0900 Message-Id: <1480183585-592-33-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1480183585-592-1-git-send-email-yamada.masahiro@socionext.com> References: <1480183585-592-1-git-send-email-yamada.masahiro@socionext.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20161126_130752_498485_0A31EE41 X-CRM114-Status: GOOD ( 13.80 ) X-Spam-Score: -1.2 (-) X-Spam-Report: SpamAssassin version 3.4.1 on merlin.infradead.org summary: Content analysis details: (-1.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_MSPIKE_L4 RBL: Bad reputation (-4) [210.131.2.78 listed in bl.mailspike.net] 0.7 SPF_SOFTFAIL SPF: sender does not match SPF record (softfail) -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 0.0 RCVD_IN_MSPIKE_BL Mailspike blacklisted X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Boris Brezillon , Marek Vasut , Richard Weinberger , linux-kernel@vger.kernel.org, Masahiro Yamada , Cyrille Pitchen , Brian Norris , David Woodhouse MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Because SUPPORT_15BITECC is defined, the following is dead code: #elif SUPPORT_8BITECC iowrite32(8, denali->flash_reg + ECC_CORRECTION); #endif Such ifdefs are useless and unacceptable coding style. These writes are not needed in the first place since ECC_CORRECTION is set up by the nand_init() function. Signed-off-by: Masahiro Yamada --- drivers/mtd/nand/denali.c | 15 +-------------- drivers/mtd/nand/denali.h | 3 --- 2 files changed, 1 insertion(+), 17 deletions(-) diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index 9193331..63f7500 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -62,8 +62,6 @@ MODULE_PARM_DESC(onfi_timing_mode, */ #define CHIP_SELECT_INVALID -1 -#define SUPPORT_8BITECC 1 - /* * This macro divides two integers and rounds fractional values up * to the nearest integer value. @@ -347,14 +345,8 @@ static void get_toshiba_nand_para(struct denali_nand_info *denali) * spare area size for some kind of Toshiba NAND device */ if ((ioread32(denali->flash_reg + DEVICE_MAIN_AREA_SIZE) == 4096) && - (ioread32(denali->flash_reg + DEVICE_SPARE_AREA_SIZE) == 64)) { + (ioread32(denali->flash_reg + DEVICE_SPARE_AREA_SIZE) == 64)) iowrite32(216, denali->flash_reg + DEVICE_SPARE_AREA_SIZE); -#if SUPPORT_15BITECC - iowrite32(15, denali->flash_reg + ECC_CORRECTION); -#elif SUPPORT_8BITECC - iowrite32(8, denali->flash_reg + ECC_CORRECTION); -#endif - } } static void get_hynix_nand_para(struct denali_nand_info *denali, u8 device_id) @@ -366,11 +358,6 @@ static void get_hynix_nand_para(struct denali_nand_info *denali, u8 device_id) iowrite32(4096, denali->flash_reg + DEVICE_MAIN_AREA_SIZE); iowrite32(224, denali->flash_reg + DEVICE_SPARE_AREA_SIZE); iowrite32(0, denali->flash_reg + DEVICE_WIDTH); -#if SUPPORT_15BITECC - iowrite32(15, denali->flash_reg + ECC_CORRECTION); -#elif SUPPORT_8BITECC - iowrite32(8, denali->flash_reg + ECC_CORRECTION); -#endif break; default: dev_warn(denali->dev, diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h index e3fe3bc..d621b74 100644 --- a/drivers/mtd/nand/denali.h +++ b/drivers/mtd/nand/denali.h @@ -387,9 +387,6 @@ #define CLK_X 5 #define CLK_MULTI 4 -#define SUPPORT_15BITECC 1 -#define SUPPORT_8BITECC 1 - #define ONFI_BLOOM_TIME 1 #define MODE5_WORKAROUND 0