On Friday 18 September 2015 14:24:10 Ray Jui wrote: > + soc { > + compatible = "simple-bus"; > + ranges; > + #address-cells = <1>; > + #size-cells = <1>; > + pinctrl: pinctrl@0301d0c8 { > Similarly to the core bus, this seems to have address ranges 0x03xxxxxx and 0x18xxxxxx on it, so put those into the ranges. It probably also makes sense to name the bus according to what kind of bus (axi, ahb, plb, ...) is used here. If the soc has nested buses (e.g. an ahb connected to an axi bus,) then model both of them in the DT. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html