From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 29522C46467 for ; Mon, 2 Jan 2023 10:07:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bsZJ1sJpseyPolVYg/DlBeuuZx0f3byXe/F3X1BGpyY=; b=tyMwLE2aqbbpEJ 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h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9D8Y+DBW+vGrczBNQRRDtRd16IJPcvgPJsKV94Z0guE=; b=HRMVRoBd4UF80iOc0qdYtbX+AWvmt4xXGGSZTO0v2LY/PQqtmGvtxeKi+kT9ACK12aNyxJ +XhGSUmbexgQgqNtYA2rly89LLpljCPVM6kw4biBbSxDjS86eO2rySrINbPLxU3sW1xNwq noKUVpK/Y5QzwgrRsoQmzrzwaiIH8HkQWdCGv2YtJRIJtU3ICH9455XpXYoxJnslyKYz+k AzZQoEOhq0GtBdtDRDiOKSUpOUE9PItqyr/05t2GnhG61lCluvjXoTQWIAHw29Cb5FGMSN ZPqz82f0lkrhxJXJejb4CiWOVTWIjoj+zkUhmKPlMY9rUCNJMxDcQSihzj18Rw== Date: Mon, 2 Jan 2023 11:06:30 +0100 From: Miquel Raynal To: Samuel Holland Cc: Richard Weinberger , Vignesh Raghavendra , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/3] mtd: rawnand: hynix: Add support for H27UCG8T2FTR-BC MLC NAND Message-ID: <20230102110630.4c68e038@xps-13> In-Reply-To: <1b17f332-827b-c8b1-807c-9c6e38caf173@sholland.org> References: <20221229190906.6467-1-samuel@sholland.org> <20221229190906.6467-2-samuel@sholland.org> <20221230134507.719edeae@xps-13> <1b17f332-827b-c8b1-807c-9c6e38caf173@sholland.org> Organization: Bootlin X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230102_020636_521505_C8C2A729 X-CRM114-Status: GOOD ( 24.99 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org SGkgU2FtdWVsLAoKc2FtdWVsQHNob2xsYW5kLm9yZyB3cm90ZSBvbiBGcmksIDMwIERlYyAyMDIy 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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 3EC5EC46467 for ; Mon, 2 Jan 2023 10:07:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232299AbjABKGp (ORCPT ); Mon, 2 Jan 2023 05:06:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34590 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232584AbjABKGf (ORCPT ); Mon, 2 Jan 2023 05:06:35 -0500 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::223]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 041831C3 for ; Mon, 2 Jan 2023 02:06:33 -0800 (PST) Received: (Authenticated sender: miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 0B88760003; Mon, 2 Jan 2023 10:06:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1672653992; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9D8Y+DBW+vGrczBNQRRDtRd16IJPcvgPJsKV94Z0guE=; b=HRMVRoBd4UF80iOc0qdYtbX+AWvmt4xXGGSZTO0v2LY/PQqtmGvtxeKi+kT9ACK12aNyxJ +XhGSUmbexgQgqNtYA2rly89LLpljCPVM6kw4biBbSxDjS86eO2rySrINbPLxU3sW1xNwq noKUVpK/Y5QzwgrRsoQmzrzwaiIH8HkQWdCGv2YtJRIJtU3ICH9455XpXYoxJnslyKYz+k AzZQoEOhq0GtBdtDRDiOKSUpOUE9PItqyr/05t2GnhG61lCluvjXoTQWIAHw29Cb5FGMSN ZPqz82f0lkrhxJXJejb4CiWOVTWIjoj+zkUhmKPlMY9rUCNJMxDcQSihzj18Rw== Date: Mon, 2 Jan 2023 11:06:30 +0100 From: Miquel Raynal To: Samuel Holland Cc: Richard Weinberger , Vignesh Raghavendra , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/3] mtd: rawnand: hynix: Add support for H27UCG8T2FTR-BC MLC NAND Message-ID: <20230102110630.4c68e038@xps-13> In-Reply-To: <1b17f332-827b-c8b1-807c-9c6e38caf173@sholland.org> References: <20221229190906.6467-1-samuel@sholland.org> <20221229190906.6467-2-samuel@sholland.org> <20221230134507.719edeae@xps-13> <1b17f332-827b-c8b1-807c-9c6e38caf173@sholland.org> Organization: Bootlin X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Samuel, samuel@sholland.org wrote on Fri, 30 Dec 2022 10:08:13 -0600: > Hi Miqu=C3=A8l, >=20 > On 12/30/22 06:45, Miquel Raynal wrote: > > Hi Samuel, > >=20 > > samuel@sholland.org wrote on Thu, 29 Dec 2022 13:09:03 -0600: > > =20 > >> H27UCG8T2FTR-BC is similar to the already-supported H27UCG8T2ETR-BC, b= ut > >> reports a different ID. =20 > >=20 > > Can you provide a datasheet for this part? I am surprised by the page > > size. In general anyway, it's best to provide a link when adding > > support for a new component. =20 >=20 > I was unable to find a datasheet for specifically H27UCG8T2FTR-BC. The > best datasheet I could find is for H27UCG8T2ETR-BC[0][1]. However, there > are layout parameters for H27UCG8T2FTR-BC in some versions of the vendor > NAND driver[2][3][4]. The Hynix chip is packaged as Essencore > I3T-8GQ8T2H5TARC, as referenced in that NAND ID table, which is the > actual package on the board I have. >=20 > Regards, > Samuel >=20 > [0]: > https://z3d9b7u8.stackpathcdn.com/pdf-down/H/2/7/H27UCG8T2ETR-BC-Hynix.pdf Pointing to [0] or [1] in the commit log would be nice at least, even though we cannot get our hands on the real datasheet... > [1]: http://www.zsong.com.cn/userfiles/H27UC(D)G8T(U)2ETR-BC_Rev1.0_0826.= pdf > [2]: > https://github.com/engSinteck/A133_Image/blob/main/longan/kernel/linux-4.= 9/modules/nand/sun8iw15p1/phy-nand/physic_v2/nand_id2.c#L1592 > [3]: > https://github.com/launchfur/rg818-kernel/blob/master/modules/nand/sun8iw= 15p1/phy-nand/physic_v2/nand_id2.c#L1592 > [4]: Adding member names to that table entry: >=20 > {.nand_id =3D {0xad, 0xde, 0x14, 0xab, 0x42, 0x4a, > 0xff, 0xff}, > .die_cnt_per_chip =3D 1, > .sect_cnt_per_page =3D 32, > .page_cnt_per_blk =3D 256, > .blk_cnt_per_die =3D 2112, > #define NAND_MULTI_PROGRAM (1 << 3) > #define NAND_RANDOM (1 << 7) > #define NAND_READ_RETRY (1 << 8) > #define NAND_LSB_PAGE_TYPE (0xff << 12) > .operation_opt =3D 0x00002188, > .valid_blk_ratio =3D 896, > .access_freq =3D 40, > .ecc_mode =3D 8, > .read_retry_type =3D 0x050804, > .ddr_type =3D 0, > .option_phyisc_op_no =3D 14, > .ddr_info_no =3D 0, > .id_number =3D 0x010026, > .max_blk_erase_times =3D 3000, > .driver_no =3D 1, > .access_high_freq =3D 40, > .random_cmd2_send_flag =3D 0, > .random_addr_num =3D 0, > .nand_real_page_size =3D 16384 + 1664}, This and what is displayed in the two datasheets pointed above looks very much like out-of-band data to me, I don't get why we should treat this part of the array differently? The OOB area is not only supposed to be used for ECC bytes (even though that's how UBI make use of it), you can store all the data you want there (but it's not necessarily protected by the ECC engine, which, in general, matters a lot. I don't see how this datasheet would be different than the others. They don't detail the geometry, I would have expected them to do it if the page size was anything different than the standard? > ".option_phyisc_op_no =3D 14" references this entry: > { > /* 14 */ > .multi_plane_read_cmd =3D {0x60, 0x30}, > .multi_plane_write_cmd =3D {0x11, 0x81}, > .multi_plane_copy_read_cmd =3D {0x60, 0x60, 0x35}, > .multi_plane_copy_write_cmd =3D {0x85, 0x11, 0x81}, > .multi_plane_status_cmd =3D 0x78, > .inter_bnk0_status_cmd =3D 0x78, > .inter_bnk1_status_cmd =3D 0x78, > .bad_block_flag_position =3D 0x00, > .multi_plane_block_offset =3D 1024, > }, >=20 Thanks, Miqu=C3=A8l