From mboxrd@z Thu Jan 1 00:00:00 1970 From: gregory.clement@free-electrons.com (Gregory CLEMENT) Date: Wed, 24 Sep 2014 09:18:16 +0200 Subject: [linux-sunxi] Re: [PATCH 3/6] ARM: dts: sunxi: Add Allwinner A80 dtsi In-Reply-To: References: <1411311493-24344-1-git-send-email-wens@csie.org> <1411311493-24344-4-git-send-email-wens@csie.org> <20140924063738.GQ15315@lukather> Message-ID: <54227038.2020805@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Chen-Yu, >>> + >>> + memory { >>> + reg = <0x20000000 0x40000000>; >> >> Usually, what we put there was the maximum amount of RAM that can be >> handled by the SoC. I think that it can go above 1GB > > With LPAE, it can handle 8GB. But the DT won't take 64bit values. > I'm not sure how to get it in. I'll look around for examples. You can have a look on what we did for Armada XP: arch/arm/boot/dts/armada-370-xp.dtsi arch/arm/boot/dts/armada-xp.dtsi arch/arm/boot/dts/armada-xp-gp.dts I created a skeleton64.dtsi for this case Gregory -- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com