[PATCH 2/3] ARM: OMAP2+: Add new bindings for OMAP

Rajendra Nayak rnayak at ti.com
Wed Aug 21 08:39:41 EDT 2013


On Wednesday 21 August 2013 05:53 PM, Tony Lindgren wrote:
> * Rajendra Nayak <rnayak at ti.com> [130821 02:29]:
>> On Wednesday 21 August 2013 02:23 PM, Tony Lindgren wrote:
>>>
>>> Or you could also have various bus specific bindings for the ocp
>>> with lists of phandles?
>>>
>>> ocp {
>>> 	reg = <...>;
>>> 	interrupts = <...>;
>>> 	ti,reset-on-init = <&module1, &module2>;
>>> 	...
>>> };
>>>
>>> Or something similar.
>>
>> The only problem I see with this is that some of these modules could be
>> board specific ones and need to be part of the board dts files, like
>> some boards which have PMIC power switch hooked up to some gpio etc.
>> So there could be some SoC specific modules (like emif/gpmc on OMAPs)
>> and some which depend on how the boards are designed.
> 
> You can still override the ocp entry in the board specific .dts file.
> Would probably be a lot easier than to override each module separately
> in the board specific .dts file.

So, If I understand this right we would have the dt entries
something like,

omap4.dtsi
------
ocp {
	reg = <...>;
	interrupts = <...>;
	ti,no-reset-on-init = <&emif1, &emif2, &gpmc>;
	...
};

omap4-panda-es.dts
------
ocp {
	ti,no-reset-on-init = <&emif1, &emif2, &gpmc, &gpio4>;
	...
};

Is it that, or you suggesting we can _append_ the soc list of
modules with board specific modules, which I am not sure if its
possible.



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