From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6F8003A0EA2; Fri, 14 Aug 2026 09:46:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786700818; cv=none; b=UPeAh9cEVCd+d0QreE1yI0WtHCYoFnpciO58fEergPy8peqGv3ctSR6wBdXijgvRZJzRPwKATPW0dDDEUcSbpKEQv2aRh1PAAZGjNPW/w8m6f+EixQFSiJ2op1/t3YyHE53/5g6cosOaCmfsF6pU2Qj3aa2vc3NM6z/kHKhDNxA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786700818; c=relaxed/simple; bh=0AZFghz+RNQCbq2ZIEb8z7RSEcxe+KsWfb8rITQo3NQ=; h=Mime-Version:Content-Type:Date:Message-Id:Subject:Cc:From:To: References:In-Reply-To; b=Up/hPbCGHNYgKWk1cowaMw1gz1exLYpU1/dip+dR6XN2psWbsYghCqcv8P19VR5qv6zwDL6WTGi+LWr+CrWtrRXYSsa5mjqEq4W82YWdnyjw7IMHVd2S0ThVG3pBN4OkuDGuYZtftnfSmJx5N4Z1PezuHIhcdRVt4feTzlEM0H0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FS/lIb9p; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FS/lIb9p" Received: by smtp.kernel.org (Postfix) with UTF8SMTPSA id C948B1F000E9; Fri, 14 Aug 2026 09:46:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786700815; bh=0AZFghz+RNQCbq2ZIEb8z7RSEcxe+KsWfb8rITQo3NQ=; h=Date:Subject:Cc:From:To:References:In-Reply-To; b=FS/lIb9pReWZN+TBA9qUqNXEeoyBSx11+UkZvshZV3Cv/XOvCuwib9zn3PVyDW1/9 X3iRNEvnNmQEXwIJWkdzIDezyGojOIBRPUFbnXC03aE5IF9ZtnMVnX1ppkpbRBF9E6 GumPsLr2iIE+Ci7x7VR1i5RKsg9Gei1WvYx0DLx48dTi68L1PpISOKHRZzgUKXIhNN Y8wDzt22pWopz0wslvEt+ydn3aa9PNwmX5PolYOGM4vvWpusk24yvz4aJJE0DukW89 Sm7ds2t0gUcjtjqlq8GN40H5A3QujKevyn4AWA4FVJEtLTJIy+3Ar+XAWE/brBo9EN qEVZ8tNZpf3SQ== Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: multipart/signed; boundary=6d7a27eaea88826756201dafa9b49ce1dd6f000b339f2049eee656850130; micalg=pgp-sha384; protocol="application/pgp-signature" Date: Fri, 14 Aug 2026 11:46:51 +0200 Message-Id: Subject: Re: [PATCH v3 10/23] mtd: spi-nor: winbond: Add support for W25Q64RV-Q/N Cc: "Steam Lin" , "Hsin-Yi Wang" , "Thomas Petazzoni" , , , , From: "Michael Walle" To: "Miquel Raynal" , "Pratyush Yadav" , "Takahiro Kuwano" , "Richard Weinberger" , "Vignesh Raghavendra" , "Nicolas Ferre" , "Alexandre Belloni" , "Claudiu Beznea" , "Jonathan Corbet" , "Shuah Khan" X-Mailer: aerc 0.20.0 References: <20260813-winbond-v7-1-spi-nor-rv-addition-v3-0-b637cf120d5c@bootlin.com> <20260813-winbond-v7-1-spi-nor-rv-addition-v3-10-b637cf120d5c@bootlin.com> In-Reply-To: <20260813-winbond-v7-1-spi-nor-rv-addition-v3-10-b637cf120d5c@bootlin.com> --6d7a27eaea88826756201dafa9b49ce1dd6f000b339f2049eee656850130 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 On Thu Aug 13, 2026 at 5:19 PM CEST, Miquel Raynal wrote: > There is an ID collision with the chip of same density from the JV > family. Both chips are very similar in practice, it is mostly a matter > of electrical differences (mostly power consumption being lower). > > As a significant difference, RV chips identify themselves as supporting > the new SFDP (rev F) field which forces an alternate write SR2 > opcode (0x31). > > Signed-off-by: Miquel Raynal Reviewed-by: Michael Walle --6d7a27eaea88826756201dafa9b49ce1dd6f000b339f2049eee656850130 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iKgEABMJADAWIQTIVZIcOo5wfU/AngkSJzzuPgIf+AUCan7kCxIcbXdhbGxlQGtl cm5lbC5vcmcACgkQEic87j4CH/iQhQF8Dq0tnx9H3Tajs78NLFbZ6ehFxTFzeQVV wHXTXMvleJrsJjYRFYlSCT3a6sd4lWUwAYCrA5ptxBmrpjFIMiwHNB91GFyHB/1x WCnpHPFLC7pb0UwBhbLXY8gO2kf2+GTyeig= =vSOF -----END PGP SIGNATURE----- --6d7a27eaea88826756201dafa9b49ce1dd6f000b339f2049eee656850130-- 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 CB532C5CFC1 for ; Fri, 14 Aug 2026 09:46:59 +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-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:References:To:From:Cc:Subject:Message-Id:Date:Mime-Version: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8Gu7aYVasRy68jV+WX2YiKJNkKRa3qZMep/GRf1Ya2o=; b=jpB8kJPc843JoTsgSoO+wOd0fs H/KZHDybqas9yekEkoadxcV1qvSFC1f5YxVrQqycm72rGKZrITYfSCo9TdJozeA5IivTCJrflN3v5 IDTWsyzjxCTflvI3mV7qZULyj60x9izQfPqep97Lo/2E2akpkXVcV9qm2gv1L/1u6LRq1fYEWmcpe Z6C7cmD5KuGfwyf/ecyHOtTrxWfH9gySEiVfQ2w6x2xnARu/VqZlYPQXCD+kk0DwhuXPGB/GLr7gG TKPnAWiGeTuzcLLp4AJsrBxYqbLUxwpKFdWAT4GiGezOob1Afo/2MOj49RlXcWWEMriPCD7M8Pdmd cQL0/CXw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wuoV8-00000002R2E-18bw; Fri, 14 Aug 2026 09:46:58 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wuoV6-00000002R1K-0ka8; Fri, 14 Aug 2026 09:46:56 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with UTF8SMTP id 9E3C760204; Fri, 14 Aug 2026 09:46:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with UTF8SMTPSA id C948B1F000E9; Fri, 14 Aug 2026 09:46:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786700815; bh=0AZFghz+RNQCbq2ZIEb8z7RSEcxe+KsWfb8rITQo3NQ=; h=Date:Subject:Cc:From:To:References:In-Reply-To; b=FS/lIb9pReWZN+TBA9qUqNXEeoyBSx11+UkZvshZV3Cv/XOvCuwib9zn3PVyDW1/9 X3iRNEvnNmQEXwIJWkdzIDezyGojOIBRPUFbnXC03aE5IF9ZtnMVnX1ppkpbRBF9E6 GumPsLr2iIE+Ci7x7VR1i5RKsg9Gei1WvYx0DLx48dTi68L1PpISOKHRZzgUKXIhNN Y8wDzt22pWopz0wslvEt+ydn3aa9PNwmX5PolYOGM4vvWpusk24yvz4aJJE0DukW89 Sm7ds2t0gUcjtjqlq8GN40H5A3QujKevyn4AWA4FVJEtLTJIy+3Ar+XAWE/brBo9EN qEVZ8tNZpf3SQ== Mime-Version: 1.0 Date: Fri, 14 Aug 2026 11:46:51 +0200 Message-Id: Subject: Re: [PATCH v3 10/23] mtd: spi-nor: winbond: Add support for W25Q64RV-Q/N Cc: "Steam Lin" , "Hsin-Yi Wang" , "Thomas Petazzoni" , , , , From: "Michael Walle" To: "Miquel Raynal" , "Pratyush Yadav" , "Takahiro Kuwano" , "Richard Weinberger" , "Vignesh Raghavendra" , "Nicolas Ferre" , "Alexandre Belloni" , "Claudiu Beznea" , "Jonathan Corbet" , "Shuah Khan" X-Mailer: aerc 0.20.0 References: <20260813-winbond-v7-1-spi-nor-rv-addition-v3-0-b637cf120d5c@bootlin.com> <20260813-winbond-v7-1-spi-nor-rv-addition-v3-10-b637cf120d5c@bootlin.com> In-Reply-To: <20260813-winbond-v7-1-spi-nor-rv-addition-v3-10-b637cf120d5c@bootlin.com> 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: multipart/mixed; boundary="===============5154887474364749361==" Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org --===============5154887474364749361== Content-Type: multipart/signed; boundary=6d7a27eaea88826756201dafa9b49ce1dd6f000b339f2049eee656850130; micalg=pgp-sha384; protocol="application/pgp-signature" --6d7a27eaea88826756201dafa9b49ce1dd6f000b339f2049eee656850130 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 On Thu Aug 13, 2026 at 5:19 PM CEST, Miquel Raynal wrote: > There is an ID collision with the chip of same density from the JV > family. Both chips are very similar in practice, it is mostly a matter > of electrical differences (mostly power consumption being lower). > > As a significant difference, RV chips identify themselves as supporting > the new SFDP (rev F) field which forces an alternate write SR2 > opcode (0x31). > > Signed-off-by: Miquel Raynal Reviewed-by: Michael Walle --6d7a27eaea88826756201dafa9b49ce1dd6f000b339f2049eee656850130 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iKgEABMJADAWIQTIVZIcOo5wfU/AngkSJzzuPgIf+AUCan7kCxIcbXdhbGxlQGtl cm5lbC5vcmcACgkQEic87j4CH/iQhQF8Dq0tnx9H3Tajs78NLFbZ6ehFxTFzeQVV wHXTXMvleJrsJjYRFYlSCT3a6sd4lWUwAYCrA5ptxBmrpjFIMiwHNB91GFyHB/1x WCnpHPFLC7pb0UwBhbLXY8gO2kf2+GTyeig= =vSOF -----END PGP SIGNATURE----- --6d7a27eaea88826756201dafa9b49ce1dd6f000b339f2049eee656850130-- --===============5154887474364749361== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/ --===============5154887474364749361==--