Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752733AbcLGI5X (ORCPT ); Wed, 7 Dec 2016 03:57:23 -0500 Received: from mail.free-electrons.com ([62.4.15.54]:35474 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751631AbcLGI5W (ORCPT ); Wed, 7 Dec 2016 03:57:22 -0500 Date: Wed, 7 Dec 2016 09:57:16 +0100 From: Alexandre Belloni To: Nicolas Ferre Cc: linux-arm-kernel@lists.infradead.org, Boris BREZILLON , Ludovic Desroches , linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] ARM: dts: at91: sama5d4: change DMA allocation for secure peripherals Message-ID: <20161207085716.snqzkhuqyfl6uto6@piout.net> References: <20161130173630.11944-1-nicolas.ferre@atmel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161130173630.11944-1-nicolas.ferre@atmel.com> User-Agent: NeoMutt/20161104 (1.7.1) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 741 Lines: 19 On 30/11/2016 at 18:36:29 +0100, Nicolas Ferre wrote : > Some peripherals are "Programmable Secure" but left as "Secure" by default. > If tried to be connected to Non-Secure DMA controller, the possibility to > leak secure data is prevented so using these peripherals with DMA1 is not > possible with this default configuration (MATRIX_SPSELR registers setup by > bootloader). > Move them to DMA0 which is an "Always-Secure" DMA controller. > > Signed-off-by: Nicolas Ferre > --- > arch/arm/boot/dts/sama5d4.dtsi | 16 ++++++++-------- > 1 file changed, 8 insertions(+), 8 deletions(-) > All applied, thanks. -- Alexandre Belloni, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com