From mboxrd@z Thu Jan 1 00:00:00 1970 From: Deepak Das Date: Fri, 24 Apr 2020 23:30:17 +0530 Subject: support of rockchip nanopiM4 2GB board In-Reply-To: <85cce425-b29b-00a8-c875-be2fb94731a4@rock-chips.com> References: <85cce425-b29b-00a8-c875-be2fb94731a4@rock-chips.com> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Kever, On 24/04/20 3:45 pm, Kever Yang wrote: > Hi Deepak, Jagan, > > On 2020/4/23 ??7:29, Jagan Teki wrote: >> On Thu, Apr 23, 2020 at 4:37 PM Deepak Das wrote: >>> Hi Jagan, >>> >>> upstream uboot has the support for nanopi M4 board with 4GB LPDDR3 RAM. >>> I have a nanopi M4 board with 2GB DDR3 RAM and able to boot this board >>> by using ddr3 configuration. >>> >>> +// SPDX-License-Identifier: GPL-2.0+ >>> +/* >>> + * Copyright (C) 2019 Jagan Teki >>> + */ >>> + >>> +#include "rk3399-nanopi4-u-boot.dtsi" >>> +#include "rk3399-sdram-ddr3-1866.dtsi" >>> + >>> +/* #include "rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi" */ >>> >>> how to handle this situation? do we need to treat this as a new board >>> support? >> Possible approach is to check the chip type and vendor during probe >> and source the respective .dtsi >> >> YouMin and Kever, any? ideas? > > > We can auto detect the different capacity for the same DRAM type, but if the dram type > > is not the same, it usually treat as different boards. I don't see any other difference in these two board versions apart from DRAM type. I will drop a patch to add support of this board after some basic testing. > > And this is the first time for a board use two different type DRAM, does both type of nanopi M4 > > with DDR3 and LPDDR3 are available on the market, or maybe one of them is internal version? > yes, both are available at amazon. https://www.amazon.com/FriendlyARM-Rockchip-Dual-Band-Support-Learning/dp/B07GXNK8M1 https://www.amazon.com/FriendlyARM-Rockchip-Dual-Band-Support-Learning/dp/B07H9S92X6 regards, Deepak > > Thanks, > > - Kever > > >> >> Jagan. >> >> > >