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AM4378: FIQ or IRQ selection

S.Sasaki
Intellectual 340 points
Part Number: AM4378

Hi,

I want to use FIQ for interrupts that were set to secure and IRQ for interrupts that were set to non-secure.
I am investigating whether this can be achieved using the ICDDCR and ICDISERn mechanisms.

Q1: It seems that the Enable Non-secure bit cannot be set. Is this bit a specification that cannot be changed?

Q2: Is there any other idea about how to select FIQ or IRG for each interrupt source (Seruce or Non-Secure)?

Best Regads,
Sasaki