Date: Wed, 10 Aug 2016 13:06:48 +0200 From: Mattia Rossi <mattia.rossi.mailinglists@gmail.com> To: Emmanuel Vadot <manu@bidouilliste.com> Cc: freebsd-arm@freebsd.org Subject: Re: Allwinner H3 - OrangePi Plus Status Message-ID: <c4303640-eb52-40fe-e45c-775b6ebf2dd3@gmail.com> In-Reply-To: <20160810115617.aa7ad5c9ae538660dc5cc0d8@bidouilliste.com> References: <64ad8272-a97f-e51f-19f1-d37e12c4e4bf@gmail.com> <E9103052-2177-42C0-BFFD-C48BDC7ACDFE@cs.huji.ac.il> <868ae805-bf93-50f9-e22c-1d2ea13f8555@gmail.com> <8FDE95E3-C66E-40D5-8133-67FD987BE729@cs.huji.ac.il> <3454388a-02bc-8dbe-4f8f-c33a726e406c@gmail.com> <20160810103501.0aef31d4c27cf08b6e54d20f@bidouilliste.com> <141a4b87-1914-a9f5-c15a-3173f6d4659a@gmail.com> <20160810115617.aa7ad5c9ae538660dc5cc0d8@bidouilliste.com>
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Am 10.08.2016 um 11:56 schrieb Emmanuel Vadot: > On Wed, 10 Aug 2016 11:07:04 +0200 > Mattia Rossi <mattia.rossi.mailinglists@gmail.com> wrote: > >>> ubldr will load the file described by the "fdtfile" u-boot variable (ubldr import the needed uboot variables). >>> The uboot variable is hardcoded in the uboot port patch (https://svnweb.freebsd.org/ports/head/sysutils/u-boot-olimex-a20-som-evb/files/patch-include_configs_sunxi-common.h?revision=418446&view=markup#l44). >>> Alternativelly you can do from ubldr prompt : >>> load -t dtb filename >>> It will search for the file in /boot/dtb (or you can use the fullpath if it's elsewhere) >>> >> It's weird that such a thing is hardcoded.. Although it seems that it's >> set through CONFIG_DEFAULT_DEVICE_TREE, so I guess it can be controlled >> through a config file (Makefile?) > Not weird at all since uboot is always compiled for one particular board. > The CONFIG_DEFAULT_DEVICE_TREE is set in the uboot config file (configs/boardname) but it is currently not used as we override the environ in the board include file. > Okay, so just to get the whole picture: If I want everything set up for an OrangePi Plus 2 I need the following puzzle pieces A u-boot port which points to an orangepi plus 2 dtb An orangepi plus 2 dts/dtb (which might differ from the plus dtb, I don't know yet, there are no real specs available) An orangepi plus 2 kernel config (which like the .dts might differ from the standard allwinner config) And of course kernel support for all the (as of yet unknown) devices of the board. I'm going to work towards that, depending on how much information I can gather about the board and depending on how much it differs from the plus version. For now I'll see if the plus version of everything works :-) - wish me luck ;-) Cheers, Mat
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