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 20:50:48 +0100 [thread overview]
Message-ID: <56C22C18.5090608@gmx.de> (raw)
In-Reply-To: <20160215194056.GE1640@darkstar.musicnaut.iki.fi>
On 02/15/2016 08:40 PM, Aaro Koskinen wrote:
> Hi,
>
> On Mon, Feb 15, 2016 at 08:21:33PM +0100, Heinrich Schuchardt wrote:
>> 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.
>
> OCTEON does not work like this. The file you are modifying
> (octeon_3xxx.dts) is compiled into the kernel, and there is no external
> DTB file. So the model string will be always the same regardless on
> which board you have booted the kernel.
>
> A.
>
Hello Aaro,
you are right DTBs are built in for MIPS systems.
Still it would be useful to be able to use the same property 'model' to
determine which u-boot script (boot.scr) to install.
Best regards
Heinrich Schuchardt
WARNING: multiple messages have this Message-ID (diff)
From: Heinrich Schuchardt <xypron.glpk-Mmb7MZpHnFY@public.gmane.org>
To: Aaro Koskinen <aaro.koskinen-X3B1VOXEql0@public.gmane.org>
Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
Sergei Shtylyov
<sergei.shtylyov-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Ian Campbell
<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>,
Andrew Bresticker
<abrestic-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 1/1] MIPS: DTS: cavium-octeon: provide model attribute
Date: Mon, 15 Feb 2016 20:50:48 +0100 [thread overview]
Message-ID: <56C22C18.5090608@gmx.de> (raw)
In-Reply-To: <20160215194056.GE1640-4/PLUo9XfK9owWHViPbQSXlKr5M7+etX9Sl0XMgJPXI@public.gmane.org>
On 02/15/2016 08:40 PM, Aaro Koskinen wrote:
> Hi,
>
> On Mon, Feb 15, 2016 at 08:21:33PM +0100, Heinrich Schuchardt wrote:
>> 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.
>
> OCTEON does not work like this. The file you are modifying
> (octeon_3xxx.dts) is compiled into the kernel, and there is no external
> DTB file. So the model string will be always the same regardless on
> which board you have booted the kernel.
>
> A.
>
Hello Aaro,
you are right DTBs are built in for MIPS systems.
Still it would be useful to be able to use the same property 'model' to
determine which u-boot script (boot.scr) to install.
Best regards
Heinrich Schuchardt
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next prev parent reply other threads:[~2016-02-15 19:51 UTC|newest]
Thread overview: 19+ 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 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
2016-02-15 18:35 ` Heinrich Schuchardt
2016-02-17 0:20 ` David Daney
2016-02-17 0:20 ` David Daney
2016-02-15 18:38 ` [PATCH 1/1] " Aaro Koskinen
2016-02-15 19:21 ` Heinrich Schuchardt
2016-02-15 19:21 ` Heinrich Schuchardt
2016-02-15 19:40 ` Aaro Koskinen
2016-02-15 19:40 ` Aaro Koskinen
2016-02-15 19:50 ` Heinrich Schuchardt [this message]
2016-02-15 19:50 ` Heinrich Schuchardt
2016-02-15 19:59 ` Aaro Koskinen
2016-02-15 19:59 ` Aaro Koskinen
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