From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Baatz Subject: Re: [PATCH] ARM: dts: sun8i: r40/v40: rewrite BPi M2 Berry DTS to rebase on M2 Ultra Date: Tue, 24 Jul 2018 20:36:15 +0200 Message-ID: <20180724183613.GA10380@gandalf> References: <20180724163655.61365-1-icenowy@aosc.io> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20180724163655.61365-1-icenowy@aosc.io> Sender: linux-kernel-owner@vger.kernel.org To: Icenowy Zheng Cc: Maxime Ripard , Chen-Yu Tsai , devicetree@vger.kernel.org, linux-sunxi@googlegroups.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org On Wed, Jul 25, 2018 at 12:36:55AM +0800, Icenowy Zheng wrote: > Banana Pi designs the BPi M2 Berry board to be software compatible with > BPi M2 Ultra, so it's based on M2 Ultra with some function cuts, > including: > > - 2048MiB DRAM -> 1024MiB (this should be proceed by the bootloader); > - dropped a LED; > - dropped eMMC; > - dropped USB2 and connect USB1 to a 4-port HUB. > > Thus we can make the M2 Berry device tree based on the M2 Ultra, rather > than write one from scratch. Good idea! I know that Ultra came first and then the cut-down Berry. But from a device tree point of view, wouldn't it make more sense to take M2 Berry as the base and just add the hardware for M2 Ultra?