From patchwork Fri Aug 8 09:12:34 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josh Wu X-Patchwork-Id: 378127 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-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id EE83F140119 for ; Fri, 8 Aug 2014 19:15:12 +1000 (EST) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XFgEy-000527-Mq; Fri, 08 Aug 2014 09:13:36 +0000 Received: from eusmtp01.atmel.com ([212.144.249.243]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XFgEw-00050v-5u for linux-mtd@lists.infradead.org; Fri, 08 Aug 2014 09:13:34 +0000 Received: from apsmtp01.atmel.com (10.168.254.31) by eusmtp01.atmel.com (10.161.101.31) with Microsoft SMTP Server id 14.2.347.0; Fri, 8 Aug 2014 11:13:11 +0200 Received: from melon.corp.atmel.com (10.168.254.13) by apsmtp01.atmel.com (10.168.254.31) with Microsoft SMTP Server id 14.2.347.0; Fri, 8 Aug 2014 17:15:44 +0800 From: Josh Wu To: Subject: [PATCH 1/2] mtd: atmel_nand: remove pmecc_sector_number, use ecc.steps instead Date: Fri, 8 Aug 2014 17:12:34 +0800 Message-ID: <1407489155-16545-1-git-send-email-josh.wu@atmel.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140808_021334_543349_340C6042 X-CRM114-Status: GOOD ( 10.61 ) X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record Cc: Josh Wu , computersforpeace@gmail.com X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.18-1 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 For PMECC, the pmecc_sector_number has same meaning as ecc.steps. So use ecc.steps to replace the pmecc_sector_number. Signed-off-by: Josh Wu --- drivers/mtd/nand/atmel_nand.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 9c5f717..1dc3988 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -129,7 +129,6 @@ struct atmel_nand_host { u32 pmecc_lookup_table_offset_1024; int pmecc_bytes_per_sector; - int pmecc_sector_number; int pmecc_degree; /* Degree of remainders */ int pmecc_cw_len; /* Length of codeword */ @@ -874,7 +873,7 @@ static int pmecc_correction(struct mtd_info *mtd, u32 pmecc_stat, uint8_t *buf, return 0; normal_check: - for (i = 0; i < host->pmecc_sector_number; i++) { + for (i = 0; i < nand_chip->ecc.steps; i++) { err_nbr = 0; if (pmecc_stat & 0x1) { buf_pos = buf + i * host->pmecc_sector_size; @@ -984,7 +983,7 @@ static int atmel_nand_pmecc_write_page(struct mtd_info *mtd, cpu_relax(); } - for (i = 0; i < host->pmecc_sector_number; i++) { + for (i = 0; i < chip->ecc.steps; i++) { for (j = 0; j < host->pmecc_bytes_per_sector; j++) { int pos; @@ -1031,7 +1030,7 @@ static void atmel_pmecc_core_init(struct mtd_info *mtd) else if (host->pmecc_sector_size == 1024) val |= PMECC_CFG_SECTOR1024; - switch (host->pmecc_sector_number) { + switch (nand_chip->ecc.steps) { case 1: val |= PMECC_CFG_PAGE_1SECTOR; break; @@ -1184,18 +1183,17 @@ static int atmel_pmecc_nand_init_params(struct platform_device *pdev, host->pmecc_degree = (sector_size == 512) ? PMECC_GF_DIMENSION_13 : PMECC_GF_DIMENSION_14; host->pmecc_cw_len = (1 << host->pmecc_degree) - 1; - host->pmecc_sector_number = mtd->writesize / sector_size; host->pmecc_bytes_per_sector = pmecc_get_ecc_bytes( cap, sector_size); host->pmecc_alpha_to = pmecc_get_alpha_to(host); host->pmecc_index_of = host->pmecc_rom_base + host->pmecc_lookup_table_offset; - nand_chip->ecc.steps = host->pmecc_sector_number; nand_chip->ecc.strength = cap; nand_chip->ecc.bytes = host->pmecc_bytes_per_sector; - nand_chip->ecc.total = host->pmecc_bytes_per_sector * - host->pmecc_sector_number; + nand_chip->ecc.steps = mtd->writesize / sector_size; + nand_chip->ecc.total = nand_chip->ecc.bytes * + nand_chip->ecc.steps; if (nand_chip->ecc.total > mtd->oobsize - 2) { dev_err(host->dev, "No room for ECC bytes\n"); err_no = -EINVAL;