NVIDIA Orin AGX: GICv2m memory range question

Dear all,

interrupt-controller@f400000 {
#redistributor-regions = <0x01>;

compatible = “arm,gic-v3”;

ranges;
#interrupt-cells = <0x03>;

status = “okay”;

reg = <0x00 0xf400000 0x00 0x10000 0x00 0xf440000 0x00 0x200000>;

phandle = <0x01>;

interrupt-controller;

v2m@f410000 {

	arm,msi-num-spis = <0x46>;

	reg-names = "gic_base\0msi_base";

	arm,msi-base-spi = <0x260>;

	msi-controller;

	compatible = "arm,gic-v2m-frame";

	reg = <0x00 0xf410000 0x00 0x10000 0x00 **0x54000000** 0x00 **0x4000000**>;

	phandle = <0x11>;

	#msi-cells = <0x01>;

};

};

I’m wondering what is this memory range used for [0x5400_0000, 0x400_0000]? Other question is which device driver probes this node on NVIDIA ORIN AGX?

Either:

• pcie-tegra194.c


• irq-gicv2m.c

Thanks in advance,

Jorge