From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753448AbeCPOua (ORCPT ); Fri, 16 Mar 2018 10:50:30 -0400 Received: from mail-wm0-f67.google.com ([74.125.82.67]:40019 "EHLO mail-wm0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753083AbeCPOu1 (ORCPT ); Fri, 16 Mar 2018 10:50:27 -0400 X-Google-Smtp-Source: AG47ELtDk6w0C8Pzo9ZiVDASYmGyj/ufQJmOMZGgjbYwZooIHZlkmJc0oTmRsf1pjS2+sopHUWGdLw== From: Jerome Brunet To: Kevin Hilman , Carlo Caione Cc: Jerome Brunet , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] ARM64: dts: meson-gx: make efuse read-only Date: Fri, 16 Mar 2018 15:50:21 +0100 Message-Id: <20180316145021.8517-1-jbrunet@baylibre.com> X-Mailer: git-send-email 2.14.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org efuse is one time programmable, so it is safer to deny write request to this memory, unless the user is savvy enough to remove the read-only flag from DTB Signed-off-by: Jerome Brunet --- arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi index 2d51ccd60628..3c31e21cbed7 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi @@ -132,6 +132,7 @@ compatible = "amlogic,meson-gx-efuse", "amlogic,meson-gxbb-efuse"; #address-cells = <1>; #size-cells = <1>; + read-only; sn: sn@14 { reg = <0x14 0x10>; -- 2.14.3