Hi Mathieu,
On 1/14/2019 9:05 PM, Mathieu Poirier wrote:
On Sat, Jan 12, 2019 at 06:21:00PM +0530, saiprakash.ranjan@xxxxxxxxxxxxxx wrote:
Hi Mathieu,
+
+ etm@7040000 {
+ compatible = "arm,coresight-etm4x", "arm,primecell";
+ arm,primecell-periphid = <0x000bb95d>;
I'm a little curious as to why you need to bypass the normal AMBA bus
discovery
method by forcing the peripheral ID. Tracers don't show up the way
other
coresight devices do at boot time?
Yes on some Qcom SoC's like SDM845 and also on some previous ones, for
ETM(only) amba bus discovery method fails because of wrong pid read from the
registers. So we have to force this primecell peripheral ids to probe etm.
Ok, if that is the case please add a comment to explain the situation.
Otherwise someone will assuredly ask again in the future.
Sure, will add it in the next version.
Thanks,
Sai
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