imx6 DUALLITE spurious interrupt

[blancharddaniel]

Hello,

We are actually working on a custom board with an imx6 DUALLITE and bare metal software.

From time to time, the GIC signals a "spurious interrupt" (vector 1023)...

I would like to know what could cause this interrupt as only the first core of the processor is started!

Thanks for any help,

Daniel Blanchard

[igorpadykov]

Hi Daniel

seems there was similar issue

SGI interferes with EPIT 

and such GIC behaviour was discussed on arm forums:

GIC IAR always returns spurious interrupt - Discussions - Software Tools - Arm Community 

for baremetal GIC example one can look at i.MX6 SDK

Github SDK
https://github.com/backenklee/swp-report/tree/master/iMX6_Platform_SDK

Best regards
igor
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