From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751500AbdJEKbu (ORCPT ); Thu, 5 Oct 2017 06:31:50 -0400 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:36411 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751318AbdJEKbs (ORCPT ); Thu, 5 Oct 2017 06:31:48 -0400 Message-ID: <1507199502.8473.7.camel@pengutronix.de> Subject: Re: [RESEND][PATCH 1/7] nvmem: imx-ocotp: Restrict OTP write to IMX6 processors From: Philipp Zabel To: "Bryan O'Donoghue" , richard.leitner@skidata.com, srinivas.kandagatla@linaro.org, axel.lin@ingics.com, ping.bai@nxp.com, d.schultz@phytec.de, peng.fan@nxp.com, van.freenix@gmail.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Date: Thu, 05 Oct 2017 12:31:42 +0200 In-Reply-To: <1507155921-824-2-git-send-email-pure.logic@nexus-software.ie> References: <1507155921-824-1-git-send-email-pure.logic@nexus-software.ie> <1507155921-824-2-git-send-email-pure.logic@nexus-software.ie> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.22.6-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 2001:67c:670:100:3ad5:47ff:feaf:1a17 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2017-10-04 at 23:25 +0100, Bryan O'Donoghue wrote: > i.MX7S/D have a different scheme for addressing the OTP registers > inside > the OCOTP block. Currently it's possible to address the wrong OTP > registers > given the disparity between IMX6 and IMX7 OTP addressing. > > Since OTP programming is one-time destructive its important we > restrict > this interface ASAP. > > Fixes: 0642bac7da42 ("nvmem: imx-ocotp: add write support") > > Signed-off-by: Bryan O'Donoghue Acked-by: Philipp Zabel regards Philipp