[PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux, atags" entry

Frank Rowand frowand.list at gmail.com
Wed Nov 11 17:10:46 PST 2015


Adding devicetree list.

Thread starts at
http://lists.infradead.org/pipermail/linux-arm-kernel/2015-July/354459.html

On 11/5/2015 8:17 AM, Tony Lindgren wrote:
> * Pali Rohár <pali.rohar at gmail.com> [151105 03:41]:
>> On Tuesday 13 October 2015 16:37:46 Pali Rohár wrote:
>>> On Monday 12 October 2015 13:45:09 Tony Lindgren wrote:
>>>> * Pali Rohár <pali.rohar at gmail.com> [151012 13:29]:
>>>>> On Monday 12 October 2015 22:16:40 Tony Lindgren wrote:
>>>>>>
>>>>>> Pali, any news on posting an updated series with the comments
>>>>>> addressed in this thread? It seems that we all pretty much agree
>>>>>> what needs to be done.

I'm not real happy with the concept of patches 4 and 5 in this series.
My concern is that those two patches are using the FDT as a transport
mechanism for a binary blob (the atags object).

Patches 1 and 2 do follow the spirit of atags_to_fdt() since an
atags kernel already may set system_rev from an atag.

-Frank


>>>>>
>>>>> Tony, I'm not really sure what to do. Just wrap 4 and 5 patches into 
>>>>> CONFIG_KEXEC? Or something more?
>>>>
>>>> Well for most part your patches are fine, I think there were some
>>>> minor comments on the series.
>>>>
>>>> For the CONFIG_KEXEC dependency, we should just keep the existing
>>>> behavior and keep /proc/atags behind CONFIG_KEXEC. That's all
>>>> I believe :)
>>>>
>>>> Regards,
>>>>
>>>> Tony
>>>>
>>>>
>>>
>>> Ok. I will add CONFIG_KEXEC into atag patches.
>>>
>>> And there is missing documentation for these two new DT properties
>>> (marked as TODO in commit messages). Where to put them?
>>>
>>
>> Tony (or somebody else) ^^^
> 
> How about Documentation/devicetree/bindings/arm/atags.txt?
> 
> Regards,
> 
> Tony
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