Hi Rob, On Tue, 7 May 2024 10:28:06 -0500 Rob Herring <robh@xxxxxxxxxx> wrote: ... > > +examples: > > + - | > > + interrupt-controller@e00c0120 { > > + compatible = "microchip,lan966x-oic"; > > + reg = <0xe00c0120 0x190>; > > Looks like this is part of some larger block? > According to the registers information document: https://microchip-ung.github.io/lan9662_reginfo/reginfo_LAN9662.html?select=cpu,intr The interrupt controller is mapped at offset 0x48 (offset in number of 32bit words). -> Address offset: 0x48 * 4 = 0x120 -> size: (0x63 + 1) * 4 = 0x190 IMHO, the reg property value looks correct. Best regards, Hervé