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LS1046A uses GIC400 or GIC 500?

Question asked by Vijaykumar Desai on Feb 22, 2018
Latest reply on Feb 22, 2018 by Serguei Podiatchev

Does LS1046A uses GIC400 or GIC 500. In the Arm documentation "http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0471b/index.html" it specifies that GIC400 is compliant with GICv2. And in "System Controllers | Generic Interrupt Controllers – Arm Developer " it specifies that we need to use GIC 500 for ARMv8 processors.

 

I am using LS1046A and if i check the ID register I see that "0200143b" which means it is GIC400. But I am wondering is it based on GICv2 right?

 

We are using Aarch64 execution state [based on ARMv8] and want to configure GIC now. It all seems messed up should I look at GIC400 document [though it says it only supports ARMV7]?

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