From nobody Wed Dec 17 11:01:18 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D7ABFEE4993 for ; Tue, 22 Aug 2023 12:26:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235725AbjHVM0B (ORCPT ); Tue, 22 Aug 2023 08:26:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232856AbjHVM0A (ORCPT ); Tue, 22 Aug 2023 08:26:00 -0400 Received: from mx1.sberdevices.ru (mx1.sberdevices.ru [37.18.73.165]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D0A7719A for ; Tue, 22 Aug 2023 05:25:57 -0700 (PDT) Received: from p-infra-ksmg-sc-msk01 (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id BA93810000A; Tue, 22 Aug 2023 15:25:54 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru BA93810000A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1692707154; bh=3PY1uBZ1cMpfUUIIRFeCrcXBjYSgM+FMgCV6BCjvYBk=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=Mc6ZdUKzmLjWFLF6vFyW5x/BTmN0L+Ac83cA09tuNggCEx3KADl5NrkAzhrWL9+r1 KDeS4bh/5sOBhXsjOVb9/YYbBt2H8xODMyo38QaDr5sxgUBXyCuPCWXDl6Qj0buCfv P2MQstI8JChFJhKCLwpu4c/kkuOLYlLUy7DR9n1j+MhsSJdAnTBF7DH3JVVZ5sY8Vv g370cWB+bi7g85YJvom/c0z4yVJEOZI66gcNh+9ul5I9bTSuXJIEMrnPieIWprXTIS MT5fiRrzkrpuJqVlYK6Ia9Q2gHEv+u1FykdpDfJy7XqUExamWBcV05e48jyGIYJI+p +AGEtDYByVFSg== Received: from p-i-exch-sc-m01.sberdevices.ru (p-i-exch-sc-m01.sberdevices.ru [172.16.192.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sberdevices.ru (Postfix) with ESMTPS; Tue, 22 Aug 2023 15:25:54 +0300 (MSK) Received: from CAB-WSD-0004828.sigma.sbrf.ru (100.64.160.123) by p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Tue, 22 Aug 2023 15:25:53 +0300 From: Martin Kurbanov To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra CC: , , , Martin Kurbanov Subject: [PATCH v2 2/2] mtd: spinand: micron: fixing the offset for OOB Date: Tue, 22 Aug 2023 15:25:34 +0300 Message-ID: <20230822122534.872646-3-mmkurbanov@sberdevices.ru> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230822122534.872646-1-mmkurbanov@sberdevices.ru> References: <20230822122534.872646-1-mmkurbanov@sberdevices.ru> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) To p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 179374 [Aug 22 2023] X-KSMG-AntiSpam-Version: 5.9.59.0 X-KSMG-AntiSpam-Envelope-From: mmkurbanov@salutedevices.com X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 527 527 5bb611be2ca2baa31d984ccbf4ef4415504fc308, {Tracking_smtp_not_equal_from}, {Tracking_from_domain_doesnt_match_to}, p-i-exch-sc-m01.sberdevices.ru:7.1.1,5.0.1;sberdevices.ru:7.1.1,5.0.1;127.0.0.199:7.1.2;salutedevices.com:7.1.1;100.64.160.123:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1, FromAlignment: n, {Tracking_smtp_domain_mismatch}, {Tracking_smtp_domain_2level_mismatch}, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2023/08/22 09:22:00 #21674243 X-KSMG-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The first 4 bytes are reserved for bad block data. Signed-off-by: Martin Kurbanov Reviewed-by: Frieder Schrempf --- drivers/mtd/nand/spi/micron.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/nand/spi/micron.c b/drivers/mtd/nand/spi/micron.c index 12601bc4227a..64b41c7c9cce 100644 --- a/drivers/mtd/nand/spi/micron.c +++ b/drivers/mtd/nand/spi/micron.c @@ -57,6 +57,20 @@ static SPINAND_OP_VARIANTS(x1_write_cache_variants, static SPINAND_OP_VARIANTS(x1_update_cache_variants, SPINAND_PROG_LOAD(false, 0, NULL, 0)); =20 +/* + * OOB spare area map (128 and 256 bytes) + * + * +-----+-----------------+-------------------+----------------= -----+ + * | BBM | Non ECC | ECC protected | ECC Area = | + * | | protected Area | Area | = | + * ----------+-----+-----------------+-------------------+----------------= -----+ + * oobsize | 0:3 | 4:31 (28 bytes) | 32:63 (32 bytes) | 64:127 (64 byte= s) | + * 128 bytes | | | | = | + * ----------+-----+-----------------+-------------------+----------------= -----+ + * oobsize | 0:3 | 4:63 (60 bytes) | 64:127 (64 bytes) | 127:255 (128 by= tes) | + * 256 bytes | | | | = | + * ----------+-----+-----------------+-------------------+----------------= -----+ + */ static int micron_8_ooblayout_ecc(struct mtd_info *mtd, int section, struct mtd_oob_region *region) { @@ -75,9 +89,9 @@ static int micron_8_ooblayout_free(struct mtd_info *mtd, = int section, if (section) return -ERANGE; =20 - /* Reserve 2 bytes for the BBM. */ - region->offset =3D 2; - region->length =3D (mtd->oobsize / 2) - 2; + /* Reserve 4 bytes for the BBM. */ + region->offset =3D 4; + region->length =3D (mtd->oobsize / 2) - 4; =20 return 0; } --=20 2.40.0