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 9924146C4A0; Fri, 14 Aug 2026 12:26:21 +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=1786710382; cv=none; b=WnnamlZFOID5D/zXVSPVtZ9dtXmmujGw9tnZrqyABiN9MH7xWq2MVGs7UyPncQWm1kbEza+Eb05Yn14L2eZvPCcjHFOiniRTDdqYjJxCGopjCZ1gBL6ItwPo2BwFieucPYsbNONCNFi55m48kCtvylTqJw5KMPHpEDfodYqIxBQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786710382; c=relaxed/simple; bh=oetNebrSGRQc4Dllyrq6sTFIBqE5Ra+p99/CTCHyDLY=; h=Mime-Version:Content-Type:Date:Message-Id:Subject:Cc:From:To: References:In-Reply-To; b=c8YNMWxhVElw5Av+6OuBmdA8vRnfLyZ5iQh8Y23qh1b/NoIxmthzTIwvtmkbmQzSzmKvPF4/qvcN/3Ty+hkPUC7wlmNVZ1L+sbU2QEj3OhXJo17VMf9ceRjkMQD/n2VCDDlcUqSg3VXMR0KOkgnITh4tuYc3qJUSgX2qs23eR1c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Fwo9yToL; 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="Fwo9yToL" Received: by smtp.kernel.org (Postfix) with UTF8SMTPSA id EC01B1F000E9; Fri, 14 Aug 2026 12:26:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786710381; bh=oetNebrSGRQc4Dllyrq6sTFIBqE5Ra+p99/CTCHyDLY=; h=Date:Subject:Cc:From:To:References:In-Reply-To; b=Fwo9yToL2yXnsfdj3rJh3xAwZudSd4QCinvuvnQ+swvN5DgcWQBrw0c1g9YSIjc78 rgEUsvo5ebdEc4MbS/YTeX55/PetfsYqxWUAweuyy4q0uDsA9vMVcyJ75R9nPo2yow IsziJrpDkQzkJq7s4MFSd8jCOxFcMsoEGWCXPrlfHYjhnAvY5nPKNtwnjidSOUXSTx 5U1jVXttCaE08H9AUyOzf06Zubv3mwi1U9zXwMmVJsj4jEIexv4O1YTxUZpRHs6im9 8QEs7SDHlHGbtM3sv6iiF8Q9DQGltyfXUwAe0kKfEoHMDfjvOth6K4VBKwiD0IzEEd oBAiikKrHqRWA== 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=91c9aee68618a0913a7de9f6287c7d683567572acb24944be1c7d46a2355; micalg=pgp-sha384; protocol="application/pgp-signature" Date: Fri, 14 Aug 2026 14:26:17 +0200 Message-Id: Subject: Re: [PATCH v3 04/23] mtd: spi-nor: Add support for the new JESD216 rev F QER field 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-v3-4-b637cf120d5c@bootlin.com> In-Reply-To: <20260813-winbond-v7-1-spi-nor-rv-addition-v3-4-b637cf120d5c@bootlin.com> --91c9aee68618a0913a7de9f6287c7d683567572acb24944be1c7d46a2355 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: > Revision F of the JEDEC JESD216 standard includes yet another > supported setting in the QER 3-bit bitfield: 110b. > > This setting implies that the QE bit is bit 1 of SR2 (which is an > already supported case) but this time it makes it very clear that both > reading and writing to SR2 is supported, but not with the usual > opcodes. The write operation uses an alternate WRSR2 opcode: > 0x31 (instead of 0x3E) and both the reads and writes manipulate a single > register at a time. > > Signed-off-by: Miquel Raynal Reviewed-by: Michael Walle --91c9aee68618a0913a7de9f6287c7d683567572acb24944be1c7d46a2355 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iKgEABMJADAWIQTIVZIcOo5wfU/AngkSJzzuPgIf+AUCan8JahIcbXdhbGxlQGtl cm5lbC5vcmcACgkQEic87j4CH/gCnwF8CPY3iwBhPpvrL/4ltGBFslvPWFA5y+gT YTrDOpc9A5NxMg+5e80b7474K05FiJAcAX0VEIaIbdQAc1G70hMh0XXH6ZyWu/qg l9PVRN5pQlW86mnyXDGSqTxzbFNbYxnErjs= =7QDn -----END PGP SIGNATURE----- --91c9aee68618a0913a7de9f6287c7d683567572acb24944be1c7d46a2355--