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 X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D852C433E3 for ; Mon, 29 Jun 2020 18:44:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 73C212063A for ; Mon, 29 Jun 2020 18:44:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=tq-group.com header.i=@tq-group.com header.b="LPesvD1r" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729238AbgF2Sos (ORCPT ); Mon, 29 Jun 2020 14:44:48 -0400 Received: from mx1.tq-group.com ([62.157.118.193]:13134 "EHLO mx1.tq-group.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729232AbgF2Soo (ORCPT ); Mon, 29 Jun 2020 14:44:44 -0400 IronPort-SDR: 1FbhWjwLcEdn1Q0su9oP38NdY2BKY6oXeFifTV9dO+033aukPIh430pBrmZ1g0n3zOXxH9lRL1 7tf8AxYnlIkNxvdhh0LbyXMkotSJTW8gUyW3NZsJ0wOlfc0d9Naew0Jg9b03KycF9Ex7VzXslI 4VaHJGdgzY+qPGevaqx8fU3JG896QEFyxxnKKDtT6rJ2Sud/pb3e+8Ja+GDSK+c39aPDUwiuBR mK4m0EjeNNa+jzwZF5DDAztyxBAlCTv9SootrYyj8pd0RL4xVtto9Rr9WCmF7u5eEXl5OU6LRG Wlk= X-IronPort-AV: E=Sophos;i="5.75,294,1589234400"; d="scan'208";a="12880961" Received: from unknown (HELO tq-pgp-pr1.tq-net.de) ([192.168.6.15]) by mx1-pgp.tq-group.com with ESMTP; 29 Jun 2020 15:22:03 +0200 Received: from mx1.tq-group.com ([192.168.6.7]) by tq-pgp-pr1.tq-net.de (PGP Universal service); Mon, 29 Jun 2020 15:22:03 +0200 X-PGP-Universal: processed; by tq-pgp-pr1.tq-net.de on Mon, 29 Jun 2020 15:22:03 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1593436923; x=1624972923; h=message-id:subject:from:to:cc:date:in-reply-to: references:mime-version:content-transfer-encoding; bh=d765UglviXAqW+GAijNHXP9xNKKGdAwIhk+fTvwY8VY=; b=LPesvD1rXXYhkRpxl1FfikAZIZD/im6ie8wuU/x98l56AY+NiRGXLDhL a9dLbgeIweQlEIZfGaGtaXY2LmOn6EGIE2EHvYxDC/UrWTWpkmkbQkNjs MxSrafFu4JnXnF9BI5WYt8KXgErmM7Teyj+b/kncNubiJZgXrqlGNjL/5 J7ScWseQmjRtHCtTtVT55ZPAYmUib2dJfoUeSgEFnDc3071pK78GHkQGW jlBHlEFex9vaWIaj8Rw2TyC3Xf4+Lcs0P3JMMLGac8h0H2Htj+k0HlIEh UVRl6hex7UG0qRY5DltPSiRRnGFvCCA9Pibg9qdpdsBH1LJGqw8kycPi3 A==; IronPort-SDR: e+L1oTFDLOrjFOUDjEXWydcdezL20EffWxOmHbukB/o/vXOiCuLRGv7XJ+HsiX4z+tLAaf163B CtfaaEHOxpUCdWGOb7oZU2r2oEv7hh9bwOvHBE+i0KynHNXnNpLQpYiF0p8oslv8qv8GnoARSe OpC+3mLqTwFr41W0W2JFQ5LJlzNaF4JwE1gJMsoY4Z3Us09XtGKRf+fdsKWGTY5+1d7lHxQWEC a2Qpd8AaZqIpCd9tfPMS/i488P/znhWF+nnRpWKGpZLKI88JanWcXQvS3WllWlLjjDvIdBA+eF QkE= X-IronPort-AV: E=Sophos;i="5.75,294,1589234400"; d="scan'208";a="12880960" Received: from vtuxmail01.tq-net.de ([10.115.0.20]) by mx1.tq-group.com with ESMTP; 29 Jun 2020 15:22:03 +0200 Received: from schifferm-ubuntu4.tq-net.de (schifferm-ubuntu4.tq-net.de [10.117.49.26]) by vtuxmail01.tq-net.de (Postfix) with ESMTPA id 5DB1F280065; Mon, 29 Jun 2020 15:22:03 +0200 (CEST) Message-ID: <570474bcc4055527d85ca8cf84b653f56bef3e23.camel@ew.tq-group.com> Subject: Re: (EXT) Re: [PATCH] mtd: spi-nor: micron-st: enable 4-byte opcodes for n25q512a From: Matthias Schiffer To: Tudor.Ambarus@microchip.com Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, michael.krummsdorf@tq-group.com, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com Date: Mon, 29 Jun 2020 15:22:01 +0200 In-Reply-To: References: <20200610091616.29555-1-matthias.schiffer@ew.tq-group.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2020-06-29 at 13:02 +0000, Tudor.Ambarus@microchip.com wrote: > Hi, Matthias, > > On 6/10/20 12:16 PM, Matthias Schiffer wrote: > > EXTERNAL EMAIL: Do not click links or open attachments unless you > > know the content is safe > > > > From: Michael Krummsdorf > > > > Set SPI_NOR_4B_OPCODES, as the flash supports 4-byte opcodes. > > I remember that we stripped SPI_NOR_4B_OPCODES intentionally for the > n25q > flashes, check https://lkml.org/lkml/2019/12/5/50. > > Cheers, > ta Ah, thank you for the pointer. Looking at a boot log of a more recent kernel again, the SPI-NOR flash on our hardware is actually detected as mt25qu512a and not n25q512a now, so everything should work as expected without this patch.