From patchwork Wed Apr 11 03:41:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: xiaolei li X-Patchwork-Id: 10334813 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3C71B6053C for ; Wed, 11 Apr 2018 03:43:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 31DD222230 for ; Wed, 11 Apr 2018 03:43:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2398128674; Wed, 11 Apr 2018 03:43:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, MAILING_LIST_MULTI, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 897CB22230 for ; Wed, 11 Apr 2018 03:43:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=l/cTRGjeSErDf5nVIzZVtjptsb8bSw142jiawj4AGtc=; b=SJVbOrXfPT4BLi UXH+x4vsJ1w3oXLz8luJU/1ppAK6oobj5GsyMfRQ4/RgJD32tKqOZYPNt5Wger+u/X/hHzzdfnDqO TG5CjZgDEZdAbGpPPAcN3eZX9nSz5/ur2/rZllz9ui8+SL7odXrtlHrbgMM/zi0foHuw15xkzYv3O 9Io1nM9JZNqnvTw3Rdpzyg6hf0egf3enDpficbtN8S7+wH0X8JOgPID1VBFb8ZVATqaON0XQT9R/k 7FMtGxxBkZh+o09voFY+8sJmFyZcWNDI6T6v/FW914X739ylVtIO9Tg44E0+XHt5dujiCJP6QF9gT 7vk7o2WLHfGwmeRJz+ig==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1f66fe-0002fQ-3g; Wed, 11 Apr 2018 03:43:42 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1f66eV-0001uv-8b; Wed, 11 Apr 2018 03:42:33 +0000 X-UUID: f6b9e7109777475b80cb1d16fa8e376d-20180411 Received: from mtkcas09.mediatek.inc [(172.21.101.178)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 55048755; Wed, 11 Apr 2018 11:42:16 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs03n1.mediatek.inc (172.21.101.181) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Wed, 11 Apr 2018 11:42:14 +0800 Received: from mtkslt306.mediatek.inc (10.21.14.136) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1210.3 via Frontend Transport; Wed, 11 Apr 2018 11:42:14 +0800 From: Xiaolei Li To: , Subject: [PATCH 7/8] mtd: rawnand: mtk: Introduce mtk_ecc_get_strength_num(), mtk_ecc_get_strength() Date: Wed, 11 Apr 2018 11:41:57 +0800 Message-ID: <1523418118-57686-8-git-send-email-xiaolei.li@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1523418118-57686-1-git-send-email-xiaolei.li@mediatek.com> References: <1523418118-57686-1-git-send-email-xiaolei.li@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180410_204231_451490_B270C943 X-CRM114-Status: UNSURE ( 7.71 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mediatek@lists.infradead.org, xiaolei.li@mediatek.com, linux-mtd@lists.infradead.org, srv_heupstream@mediatek.com Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Introduce mtk_ecc_get_strength_num(), mtk_ecc_get_strength() functions, and prepare to support struct nand_ecc_caps. Signed-off-by: Xiaolei Li --- drivers/mtd/nand/raw/mtk_ecc.c | 24 ++++++++++++++++++------ drivers/mtd/nand/raw/mtk_ecc.h | 2 ++ 2 files changed, 20 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/nand/raw/mtk_ecc.c b/drivers/mtd/nand/raw/mtk_ecc.c index 717d553..71390e7 100644 --- a/drivers/mtd/nand/raw/mtk_ecc.c +++ b/drivers/mtd/nand/raw/mtk_ecc.c @@ -51,9 +51,9 @@ struct mtk_ecc_caps { u32 err_mask; - const u8 *ecc_strength; + const int *ecc_strength; const u32 *ecc_regs; - u8 num_ecc_strength; + int num_ecc_strength; u8 ecc_mode_shift; u32 parity_bits; int pg_irq_sel; @@ -73,17 +73,17 @@ struct mtk_ecc { }; /* ecc strength that each IP supports */ -static const u8 ecc_strength_mt2701[] = { +static const int ecc_strength_mt2701[] = { 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 }; -static const u8 ecc_strength_mt2712[] = { +static const int ecc_strength_mt2712[] = { 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 68, 72, 80 }; -static const u8 ecc_strength_mt7622[] = { +static const int ecc_strength_mt7622[] = { 4, 6, 8, 10, 12, 14, 16 }; @@ -428,7 +428,7 @@ int mtk_ecc_encode(struct mtk_ecc *ecc, struct mtk_ecc_config *config, void mtk_ecc_adjust_strength(struct mtk_ecc *ecc, u32 *p) { - const u8 *ecc_strength = ecc->caps->ecc_strength; + const int *ecc_strength = ecc->caps->ecc_strength; int i; for (i = 0; i < ecc->caps->num_ecc_strength; i++) { @@ -451,6 +451,18 @@ unsigned int mtk_ecc_get_parity_bits(struct mtk_ecc *ecc) } EXPORT_SYMBOL(mtk_ecc_get_parity_bits); +int mtk_ecc_get_strength_num(struct mtk_ecc *ecc) +{ + return ecc->caps->num_ecc_strength; +} +EXPORT_SYMBOL(mtk_ecc_get_strength_num); + +const int *mtk_ecc_get_strength(struct mtk_ecc *ecc) +{ + return ecc->caps->ecc_strength; +} +EXPORT_SYMBOL(mtk_ecc_get_strength); + int mtk_ecc_calc_parity_bytes(struct mtk_ecc *ecc, int ecc_strength) { return DIV_ROUND_UP(ecc->caps->parity_bits * ecc_strength, 8); diff --git a/drivers/mtd/nand/raw/mtk_ecc.h b/drivers/mtd/nand/raw/mtk_ecc.h index c1546f9..5687864 100644 --- a/drivers/mtd/nand/raw/mtk_ecc.h +++ b/drivers/mtd/nand/raw/mtk_ecc.h @@ -42,6 +42,8 @@ struct mtk_ecc_config { void mtk_ecc_disable(struct mtk_ecc *); void mtk_ecc_adjust_strength(struct mtk_ecc *ecc, u32 *p); unsigned int mtk_ecc_get_parity_bits(struct mtk_ecc *ecc); +int mtk_ecc_get_strength_num(struct mtk_ecc *ecc); +const int *mtk_ecc_get_strength(struct mtk_ecc *ecc); int mtk_ecc_calc_parity_bytes(struct mtk_ecc *ecc, int ecc_strength); struct mtk_ecc *of_mtk_ecc_get(struct device_node *);