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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 74133C433ED for ; Wed, 7 Apr 2021 09:06:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 448FD611CC for ; Wed, 7 Apr 2021 09:06:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349939AbhDGJHF (ORCPT ); Wed, 7 Apr 2021 05:07:05 -0400 Received: from relay11.mail.gandi.net ([217.70.178.231]:49803 "EHLO relay11.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349931AbhDGJHD (ORCPT ); Wed, 7 Apr 2021 05:07:03 -0400 Received: from xps13.home (lfbn-tou-1-1325-59.w90-89.abo.wanadoo.fr [90.89.138.59]) (Authenticated sender: miquel.raynal@bootlin.com) by relay11.mail.gandi.net (Postfix) with ESMTPSA id AB147100017; Wed, 7 Apr 2021 09:06:51 +0000 (UTC) From: Miquel Raynal To: Manivannan Sadhasivam , miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, boris.brezillon@collabora.com, Daniele.Palmas@telit.com, bjorn.andersson@linaro.org, Rob Herring Subject: Re: [PATCH v11 2/4] dt-bindings: mtd: Add a property to declare secure regions in NAND chips Date: Wed, 7 Apr 2021 11:06:51 +0200 Message-Id: <20210407090651.45586-1-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210402150128.29128-3-manivannan.sadhasivam@linaro.org> References: MIME-Version: 1.0 X-linux-mtd-patch-notification: thanks X-linux-mtd-patch-commit: b'ee590106c331ad54df9da3052b5c52014b2edb0b' Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Fri, 2021-04-02 at 15:01:26 UTC, Manivannan Sadhasivam wrote: > On a typical end product, a vendor may choose to secure some regions in > the NAND memory which are supposed to stay intact between FW upgrades. > The access to those regions will be blocked by a secure element like > Trustzone. So the normal world software like Linux kernel should not > touch these regions (including reading). > > So let's add a property for declaring such secure regions so that the > drivers can skip touching them. > > Reviewed-by: Rob Herring > Signed-off-by: Manivannan Sadhasivam Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks. Miquel 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=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 5D28FC433B4 for ; Wed, 7 Apr 2021 09:09:07 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F10B4611BD for ; Wed, 7 Apr 2021 09:09:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F10B4611BD Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; 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:Date: Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=wxyZCUYzTTAhjRF5fEzCMuuONCo3LE+r/N0p2oCvRlc=; b=aaSs7H1yPbedlDiR5ItSMjtsM HN14Mgk1+1vWvAtOKP5uzPF/NO6LrLCC+BXn3nI6uCy2k5J+tW0ksz7Gsim+UXcZ0e6SX6fyCALzM DoqY9aIv3N/nQwtuqkftoE2USvdP8mReNMRnmmBc8G2jghl3YC8HZwYDL/EaMb0Iggc9bafgHdjFc qvwIsCfFxJhFWacIsh3mpQYMPWMC4u8lAyi/9qdUah6oF2PSiG3eMmffkJoAo7WiwT25KOofEZRxX U6bTayJsEzqDtKr8ySGrVXY7Vr3TzmTcHcVNZhDNZJBq/E9m6psk8pnBog/MdovzGS4kzDBe8cmQP YKdErzV8g==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lU4AN-004YGT-Ll; Wed, 07 Apr 2021 09:08:03 +0000 Received: from relay11.mail.gandi.net ([217.70.178.231]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lU49F-004Y2J-63 for linux-mtd@lists.infradead.org; Wed, 07 Apr 2021 09:06:56 +0000 Received: from xps13.home (lfbn-tou-1-1325-59.w90-89.abo.wanadoo.fr [90.89.138.59]) (Authenticated sender: miquel.raynal@bootlin.com) by relay11.mail.gandi.net (Postfix) with ESMTPSA id AB147100017; Wed, 7 Apr 2021 09:06:51 +0000 (UTC) From: Miquel Raynal To: Manivannan Sadhasivam , miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, boris.brezillon@collabora.com, Daniele.Palmas@telit.com, bjorn.andersson@linaro.org, Rob Herring Subject: Re: [PATCH v11 2/4] dt-bindings: mtd: Add a property to declare secure regions in NAND chips Date: Wed, 7 Apr 2021 11:06:51 +0200 Message-Id: <20210407090651.45586-1-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210402150128.29128-3-manivannan.sadhasivam@linaro.org> References: MIME-Version: 1.0 X-linux-mtd-patch-notification: thanks X-linux-mtd-patch-commit: b'ee590106c331ad54df9da3052b5c52014b2edb0b' X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210407_100654_731024_DADFC0AB X-CRM114-Status: UNSURE ( 7.99 ) X-CRM114-Notice: Please train this message. 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="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On Fri, 2021-04-02 at 15:01:26 UTC, Manivannan Sadhasivam wrote: > On a typical end product, a vendor may choose to secure some regions in > the NAND memory which are supposed to stay intact between FW upgrades. > The access to those regions will be blocked by a secure element like > Trustzone. So the normal world software like Linux kernel should not > touch these regions (including reading). > > So let's add a property for declaring such secure regions so that the > drivers can skip touching them. > > Reviewed-by: Rob Herring > Signed-off-by: Manivannan Sadhasivam Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks. Miquel ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/