State Framework and dtb
Çağlar Kilimci
ckilimci at gmail.com
Tue Apr 4 03:27:37 PDT 2017
Hey,
2017-04-04 11:04 GMT+03:00 Jan Remmet <J.Remmet at phytec.de>:
> On Mon, Apr 03, 2017 at 11:59:50PM +0300, Çağlar Kilimci wrote:
>> Hello,
>>
>> 2017-03-31 16:00 GMT+03:00 Sascha Hauer <s.hauer at pengutronix.de>:
>> > On Fri, Mar 31, 2017 at 02:41:19PM +0300, Çağlar Kilimci wrote:
>> >> Hey,
>> >>
>> >>
>> >> I tried but got the same result and then I would like to apply your
>> >> serious patch series of the state framework but release that our
>> >> working branch is 2016.07 so could not apply patches. Let me update
>> >> barebox and apply those patches. Are those based on master branch
>> >> right? Or, which branch do you recommend to work on?
>> >
>> > The patches are based on master, yes. Anyway, you seem to have a problem
>> > in getting your changes in the dts file to the running barebox. Please
>> > try to add some nodes/properties to your dts file and verify that a
>> > of_dump shows these nodes. Before that is the case it's not worth to
>> > look any further.
>>
>> Finally, I updated and patched the code and now I can see state at 0
>> device in the of_dump:
>> state at 0 {
>> magic = <0x27031977>;
>> compatible = "barebox,state";
>> backend-type = "raw";
>> backend = <0x42>;
>> foo {
>> reg = <0x0 0x4>;
>> type = "uint32";
>> default = <0x0>;
>> };
>> bar {
>> reg = <0x10 0x4>;
>> type = "enum32";
>> names = "baz", "qux";
>> default = <0x1>;
>> };
>> };
>
> Here a working example for barebox 2016.11.0 so there may be changes with the
> actual state cleanup patches
>
> + state2: state_socket {
> + magic = <0x456ef363>;
> + compatible = "barebox,state";
> + backend-type = "raw";
> + backend = &eeprom;
I changed to:
backend = <&eeprom>;
then it works :)
barebox at Phytec phyCORE AM335x:/ state
registered state instances:
state_socket (backend: raw, path: /dev/eeprom0)
>
> Maybe the missing backend-storage-type is a problem?
As a documentation, it should not be.
Thank you all.
--
Çağlar Kilimci
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