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Re: [PATCH v2 0/7] add support for lemote loongson2f machines

To: Ralf Baechle <>
Subject: Re: [PATCH v2 0/7] add support for lemote loongson2f machines
From: Wu Zhangjin <>
Date: Tue, 10 Nov 2009 00:36:48 +0800
Cc:,,, Nicholas Mc Guire <>, Arnaud Patard <>,,
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Organization: DSLab, Lanzhou University, China
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On Mon, 2009-11-09 at 17:11 +0100, Ralf Baechle wrote:
> On Tue, Nov 10, 2009 at 12:05:21AM +0800, Wu Zhangjin wrote:
> > for example, if you pass "machtype=8.9" to kernel when booting, it will run
> > well on yeeloong netbook. the default machtype is 2f-box, so, you can run 
> > the
> > kernel on fuloong2f directly. In the future, we will pass the machtype 
> > argument
> > by PMON directly, and then the linux distributions will only need to build 
> > one
> > kernel image, and will make it work on all of lemote loongson2f family
> > machines.
> A more general solution to this sort of problem is the flattened device tree.
> Grant Likely convinced me in Tokyo that this is the way to go.  He intends
> to rewrite the FDT code into an easily re-usable library which he estimates
> to take a month or two after which I'd like to start using it on MIPS.
> This probably also means FDT support for PMON will eventually be needed.

Thanks for your pointer, Will take a look at FDT asap.

> Until then of course machtype=<whatever> is a fair solution.

are you ready to apply it? then I will push the Cpufreq and Standby
support, and really hope we can get a full loongson2f support in the
mainline's 33 version ;)

Thanks & Regards,
        Wu Zhangjin

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