/proc/device-tree is working

[Mitch Bradley]

Dan Williams wrote:
> On Mon, 2006-12-25 at 00:42 -1000, Mitch Bradley wrote:
>   
>> -bash-3.1# cd /proc/device-tree/
>> -bash-3.1# ls
>> #address-cells  chosen          memory at 0            null-nvram  pci
>> aliases         cpus            mmu                 openprom
>> architecture    dma-ranges      model               options
>> banner-name     flash at fff20000  nandflash at 20000000  packages
>>     
>
> Neat!  What's left to do, and what's the schedule for integration?
>
> Dan
>
>   
Left to do:

a) Audit the device tree and correct any errors and omissions.

b) Release an Open Firmware version that uses virtual addressing so that 
Linux doesn't clobber it upon startup.  The coding is already done, so 
this is just a release and test step.  This version is compatible with 
existing kernels so its release doesn't require a simultaneous release 
of a new kernel.

c) Decide whether or not we want to go ahead with the /proc/device-tree 
version, or convert to /sys first.  If the latter, we have to develop 
the sysfs version of the code.  I think I understand how to convert to 
sysfs for the bulk of the code, but there is still an issue that I don't 
grok, namely the kobjects tie-in.

d) Do the administrative mechanics of expressing the changes as a patch.

e) Start converting OLPC userland code to use the device tree info 
instead of the various ad-hoc detections schemes currently in place.

f) Do whatever needs to be done to announce the patch, submit it 
upstream, or whatever we want to do on that front.