Cmdline FDT query tool

John Williams john.williams at petalogix.com
Thu May 27 15:35:15 EST 2010


On Thu, May 27, 2010 at 3:17 PM, David Gibson
<david at gibson.dropbear.id.au> wrote:
> On Thu, May 27, 2010 at 11:40:51AM +1000, John Williams wrote:
>> On Sat, May 22, 2010 at 10:17 AM, David Gibson
>> <david at gibson.dropbear.id.au> wrote:
>> > On Tue, May 18, 2010 at 12:20:05PM -0600, Grant Likely wrote:
>> >> On Mon, May 17, 2010 at 8:03 PM, John Williams
>> >> <john.williams at petalogix.com> wrote:
>> >> > Hi Grant,
>> >> >
>> >> > At ELC I mentioned a tool I'd written that basically hacked u-boot's
>> >> > "fdt" command into a commandline util for querying DTBs.  You can do
>> >> > stuff like this:
>> >> >
>> >> > $ fdt-tool system.dtp print
>> >> >
>> >> > <dump entire DTB in text format>
>> >> >
>> >> > $ fdt-tool system.dtb list /cpus/cpu at 0 xlnx,use-dcache
>> >> > xlnx,use-dcache = <0x1>
>> >> >
>> >> > and so on.
>> >>
>> >> Cool.  Thanks John.
>> >>
>> >> I agree with David.  It would probably be useful to include in the
>> >> libfdt (which U-Boot fdt support makes use of too) source repo.  Seems
>> >> like a useful tool.
>> >
>> > Of course, to incorporate it with libfdt, it would need to be BSD
>> > dual-licensed, like the rest of libfdt, and we'd need sign-offs from
>> > all authors to that effect.
>>
>> I have no problem with that, but since I ripped the guts of it
>> directly from u-boot there'll be a conversation to be had there.
>
> Ok.  Do you have the means to track down the people with whom this
> conversation needs to happen?

>From the header comments:

 * Gerald Van Baren, Custom IDEAS, vanbaren at cideas.com
 * Based on code written by:
 *   Pantelis Antoniou <pantelis.antoniou at gmail.com> and
 *   Matthew McClintock <msm at freescale.com>

John
-- 
John Williams, PhD, B.Eng, B.IT
PetaLogix - Linux Solutions for a Reconfigurable World
w: www.petalogix.com  p: +61-7-30090663  f: +61-7-30090663


More information about the devicetree-discuss mailing list