From: Heinrich Schuchardt <xypron.glpk@gmx.de>
To: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Arnd Bergmann <arnd@arndb.de>,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Ralf Baechle <ralf@linux-mips.org>,
Andrew Bresticker <abrestic@chromium.org>,
devicetree@vger.kernel.org, linux-mips@linux-mips.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] MIPS: DTS: cavium-octeon: provide model attribute
Date: Mon, 15 Feb 2016 20:21:33 +0100 [thread overview]
Message-ID: <56C2253D.50101@gmx.de> (raw)
In-Reply-To: <20160215183838.GD1640@darkstar.musicnaut.iki.fi>
On 02/15/2016 07:38 PM, Aaro Koskinen wrote:
> Hi,
>
> On Mon, Feb 15, 2016 at 06:52:20PM +0100, Heinrich Schuchardt wrote:
>> On 02/15/2016 12:16 PM, Sergei Shtylyov wrote:
>>> On 2/15/2016 8:26 AM, Heinrich Schuchardt wrote:
>>>> Downstream packages like Debian flash-kernel rely on
>>>> /proc/device-tree/model
>>>> to determine how to install an updated kernel image.
>>
>> Would you support a patch having the following strings?
>>
>> model = "CAVM, Octeon 3860";
>> model = "CAVM, Octeon 6880";
>
> The built-in DTBs are shared by multiple completely different boards
> (from multiple different manufacturers). How would those strings help
> for cases like flash-kernel?
>
> A.
>
Hello Aaro,
flash-kernel has a database /usr/share/flash-kernel/db/all.db with
entries like:
Machine: LeMaker Banana Pi
Kernel-Flavors: armmp armmp-lpae
Boot-Script-Path: /boot/boot.scr
DTB-Id: sun7i-a20-bananapi.dtb
U-Boot-Script-Name: bootscr.sunxi
Required-Packages: u-boot-tools
Machine refers to the value of /proc/device-tree/model.
DTB-Id is the dtb to be installed.
So what flash-kernel does is:
- look up value of /proc/device-tree/model
- retrieve correlated dtb file name from database
- install dtb with this name
- create symbolic links for the dtb
If multiple boards use the the same dtb that is fine with flash-kernel
as long as the value of model is unique per dtb.
Best regards
Heinrich Schuchardt
next prev parent reply other threads:[~2016-02-15 19:21 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-15 5:26 [PATCH 1/1] MIPS: DTS: cavium-octeon: provide model attribute Heinrich Schuchardt
2016-02-15 11:16 ` Sergei Shtylyov
2016-02-15 11:19 ` Arnd Bergmann
2016-02-15 17:52 ` Heinrich Schuchardt
2016-02-15 18:11 ` Sergei Shtylyov
2016-02-15 18:35 ` [PATCH 1/1 v2] " Heinrich Schuchardt
2016-02-17 0:20 ` David Daney
2016-02-15 18:38 ` [PATCH 1/1] " Aaro Koskinen
2016-02-15 19:21 ` Heinrich Schuchardt [this message]
2016-02-15 19:40 ` Aaro Koskinen
2016-02-15 19:50 ` Heinrich Schuchardt
2016-02-15 19:59 ` Aaro Koskinen
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