From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 CE9E5328B77 for ; Wed, 15 Apr 2026 10:07:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776247679; cv=none; b=crIYNkdM9lhexvkmKIEEc3h/xnZUVcc3okLdcz9RsJ0ramqXp7p6F42Kpt/ZmnNWcx3l508ch/xpRBTHr4Wrvt8DyL3thFuHivKPuk57+1E6cr7vEdJTN0TCimrFtmilBjBw76PscaUlFbctD+1/uZeLkLge1W45cfxSAaBhYZ4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776247679; c=relaxed/simple; bh=aUwaJptVs33Hoj1V7He3D+SI134FNzm8HENeUyJiyUs=; h=Mime-Version:Content-Type:Date:Message-Id:Subject:Cc:From:To: References:In-Reply-To; b=JJ85VMmVcUvis7n0A0qZXo582N4hp2Emm9c4luBquZjpsBl39gj7vaGO+tZ6OAt+1Tcq+6qdB58XE9ocBos/obUC/FB2Rdj890pIqmWeaFxB8ylVGrkfu6wQhdktQ3I60nPTGlVqV5eM4pWvFZWE5KyNAEsiprb39EPSHyQDfTo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WEMaoie+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WEMaoie+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A221C19424; Wed, 15 Apr 2026 10:07:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776247679; bh=aUwaJptVs33Hoj1V7He3D+SI134FNzm8HENeUyJiyUs=; h=Date:Subject:Cc:From:To:References:In-Reply-To:From; b=WEMaoie+3XU/z9j/KwJ9RCAifk46bFk5PJHtR1cxwYOXavwrhq8ypQhrvPIbR5RHh FurHJ20cYF7yJ7KBQ+S6q9jaMffyABPVx/KxTm5ChIl4eeunCo3cPuoWwrzTd2zGhb fxJUpOzC2z4ijv8ONK7AnwZ4gEeRS89eLQh3XddwKYwlok/sulr+kC6Wre+eqYbjXv LtUQxErrk/6gGyqm2O/+h+hNWTnL/CuQSLTpBBiwu6OL4iWDcRgKAlmA2oD0A28y91 mpSRowjt8i2aFMQhL/yjyKEcevTwpblf+yOdnFtZ9molbzgYO+VpmVYTnuU0ZpRe7k ubTM9+Yok2Bcg== 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=0841a41031df2269291596afdfdff64d5d5d3341d99f2cab1d8ce3e79068; micalg=pgp-sha384; protocol="application/pgp-signature" Date: Wed, 15 Apr 2026 12:07:55 +0200 Message-Id: Subject: Re: [PATCH] mtd: spi-nor: macronix: Document support for additional flash aliases Cc: "Pratyush Yadav" , "Takahiro Kuwano" , "Miquel Raynal" , "Richard Weinberger" , "Vignesh Raghavendra" , , , , "Cheng Ming Lin" From: "Michael Walle" To: "Cheng Ming Lin" X-Mailer: aerc 0.20.0 References: <20260410091039.389911-1-linchengming884@gmail.com> In-Reply-To: --0841a41031df2269291596afdfdff64d5d5d3341d99f2cab1d8ce3e79068 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Hi thanks for providing the dumps. > 1. MX25L51245G .. > zynq> sha256sum /sys/bus/spi/devices/spi2.0/spi-nor/sfdp > 7281b0a355a4497ec6256c57b81c3d2b303bc34220cb77790278d719d7465276 > /sys/bus/spi/devices/spi2.0/spi-nor/sfdp > > 2. MX25L51273G .. > zynq> sha256sum /sys/bus/spi/devices/spi2.0/spi-nor/sfdp > 7281b0a355a4497ec6256c57b81c3d2b303bc34220cb77790278d719d7465276 > /sys/bus/spi/devices/spi2.0/spi-nor/sfdp Different parts, same ID, same SFDP :(( Are they the same from a software perspective? With Macronix reusing the same ID for different flash chips it makes software support for different features really hard. And with even with the SFDP being the very same, it's impossible to distinguish them during auto probing. -michael --0841a41031df2269291596afdfdff64d5d5d3341d99f2cab1d8ce3e79068 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iKgEABMJADAWIQTIVZIcOo5wfU/AngkSJzzuPgIf+AUCad9jexIcbXdhbGxlQGtl cm5lbC5vcmcACgkQEic87j4CH/hQ4AGAhv7ADzlPatwb7nsE3KXxWsIOPAkA/RLM VSbJW1+OabkBm1oqr2gR9bOAajOeA2R/AX9Z2ab7ZCeODBX4LCCQX+w+hG2ZF6T5 3JJUwoNcte4unjUd3P4tfwDkWfCEdE2Q254= =o8Xe -----END PGP SIGNATURE----- --0841a41031df2269291596afdfdff64d5d5d3341d99f2cab1d8ce3e79068--