From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755567AbbGUO5M (ORCPT ); Tue, 21 Jul 2015 10:57:12 -0400 Received: from foss.arm.com ([217.140.101.70]:60299 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754201AbbGUO5K (ORCPT ); Tue, 21 Jul 2015 10:57:10 -0400 Date: Tue, 21 Jul 2015 15:56:43 +0100 From: Mark Rutland To: Jisheng Zhang Cc: Catalin Marinas , Will Deacon , "khilman@linaro.org" , "arnd@arndb.de" , "olof@lixom.net" , "robh+dt@kernel.org" , "galak@codeaurora.org" , Pawel Moll , Marc Zyngier , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "devicetree@vger.kernel.org" Subject: Re: [PATCH 1/2] arm64: dts: Add dts files for Marvell Berlin4CT SoC Message-ID: <20150721145643.GD10595@leverpostej> References: <1437488279-2088-1-git-send-email-jszhang@marvell.com> <1437488279-2088-2-git-send-email-jszhang@marvell.com> <20150721143426.GC10595@leverpostej> <20150721225006.04c3d071@xhacker> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150721225006.04c3d071@xhacker> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 21, 2015 at 03:50:06PM +0100, Jisheng Zhang wrote: > Dear Mark, > > Thanks a lot for so quick review! > > On Tue, 21 Jul 2015 15:34:26 +0100 > Mark Rutland wrote: > > > Hi, > > > > > +/dts-v1/; > > > + > > > +/memreserve/ 0x00000000 0x01000000; > > > > What's this reservation for? > > This is reserved for some firmwares' usage. > > > > > Given you're using PSCI I can't see why we'd expect the kernel to map > > but not use some memory. > > Is it acceptable that we make memory start at 0x01000000 instead of reservation? Yes, though it would still be worth a comment as to why that memory can't be used. Thanks, Mark.