On Tuesday 09 September 2014 12:20:54 Catalin Marinas wrote: > > We can assume that if a domain is not specified and there is a single > top level PCIe node, the domain defaults to 0. Are there any arm32 > platforms that require multiple domains (and do not specify a number in > the DT)? In theory, I think all of them could work with a single domain, but then you need to partition the bus number space between the host controllers, so you have the exact same situation that you either need to make up random bus numbers or put them in DT. Using multiple domains is way cleaner for this, even if we have to make up the numbers. 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