coresight dummy funnel question

[Mathieu Poirier]

On 9 March 2018 at 15:07, Zhi Li <lznuaa at gmail.com> wrote:
> On Fri, Mar 9, 2018 at 12:03 PM, Mathieu Poirier
> <mathieu.poirier at linaro.org> wrote:
>> Hi Zhi,
>>
>> On 7 March 2018 at 08:57, Zhi Li <lznuaa at gmail.com> wrote:
>>> Mathieu:
>>>
>>>            I am working one enable coresight in our SOC.
>>>
>>>            But our SOC's cluster funnel have not export program interface.
>>>            Our cluster included 4 A53.
>>>
>>>            4 ETM of A53 connect to funnel, which have NOT program
>>> interface. Funnel is default enabled.
>>>
>>>            Do you have suggest how to bypass or use dummy funnel in dts file?
>>
>> Is the funnel discoverable on the AMBA bus or is it like the original
>> version of replicators?
>
> No, No any program interface at all. Look like replicators

The best way to proceed is probably to allow entry in the funnel
driver from the platform bus as well.  There is a very good example
here [1].

Thanks,
Mathieu

[1]. https://elixir.bootlin.com/linux/v4.16-rc5/source/drivers/tty/serial/amba-pl011.c

>
> best regards
> Frank Li
>
>>
>>>
>>>
>>> best regards
>>> Frank Li