Re: Converting MIPS to Device Tree

[Tonyliu <Bo.Liu@windriver.com>]

于 2011年06月06日 09:07, Ralf Baechle 写道:
> Over the past few days I've started to convert arch/mips to use DT.  So
> far none of the platforms (except maybe PowerTV?) seems to have a
> firmware that is passing a DT nor is there any 2nd stage bootloader that
> could do so.
>
> So as the 2nd best thing I've been working on .dts files to be compiled
> into the images.
>
> I've put a git tree of my current working tree online.  It's absolutely
> work in progress so expect to encounter bugs.
>
>    http://git.linux-mips.org/?p=linux-dt.git;a=summary (Gitweb)
>    git://git.linux-mips.org/linux-dt.git
>    
should be git://git.linux-mips.org/pub/scm/linux-dt.git

tonyliu@tonyliu-laptop:/opt/git-root$ git clone 
git://git.linux-mips.org/linux-dt.git dt-linux_mips
Initialized empty Git repository in /opt/git-root/dt-linux_mips/.git/
fatal: The remote end hung up unexpectedly
tonyliu@tonyliu-laptop:/opt/git-root$ git clone 
git://git.linux-mips.org/pub/scm/linux-dt.git dt-linux_mips
Initialized empty Git repository in /opt/git-root/dt-linux_mips/.git/
remote: Counting objects: 2448486, done.
remote: Compressing objects: 100% (446507/446507), done.
Receiving objects: 0% (14786/2448486), 5.26 MiB | 7 KiB/s
Receiving objects: 0% (18463/2448486), 6.56 MiB | 12 KiB/s
Receiving objects: 2% (67572/2448486), 24.25 MiB | 11 KiB/s
Receiving objects: 100% (2448486/2448486), 611.83 MiB | 309 KiB/s, done.
remote: Total 2448486 (delta 2040537), reused 2388725 (delta 1982106)
Resolving deltas: 100% (2040537/2040537), done.
Checking out files: 100% (36749/36749), done.

Tony
>    http://www.linux-mips.org/wiki/Device_Tree (brief documentation&  links)
>
> An incomplete to do list:
>
>    o Sort out interface for firmware to pass a DT to the kernel.  Because we
>      have so many different firmware implementations this one might get a
>      slight bit interesting.
>    o Interface to select one of several builtin DT images.  I am thinking of
>      extending the existing MIPS_MACHINE() / machtype mechanism to play
>      nicely with DT.
>    o Finish and test AR7, Cobalt, Jazz, Malta, MIPSsim and SNI ports.
>    o Convert the remaining platforms; find if it's actually sensible to
>      convert all platforms.
>    o I'm considering to make DT support a requirement for future MIPS
>      platforms so you might as well start beating your firmware monkeys /
>      ask Santa to put you a shiny new bootloader blob into the boot now.
>    o Write more of the required infrastructure.
>    o Write documentation
>
> Contributions and comments welcome,
>
>    Ralf
>
>
>    


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Tony Liu | Liu Bo
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