Hi, Some comments on the ranges below. * Nishanth Menon <nm@xxxxxx> [180607 16:41]: > + soc0: soc0 { > + compatible = "simple-bus"; > + #address-cells = <2>; > + #size-cells = <2>; > + ranges; I suggest you leave out the soc0, that's not real. Just make the cbass@0 the top level interconnect. It can then provide ranges to mcu interconnect which can provide ranges to the wkup interconnect. So just model it after what's in the hardware :) I found the following ranges based on a quick look at the TRM, they could be split further if needed for power domains for genpd for example. main covers 0x0000000000 - 0x5402000000 main provides at least the following ranges for mcu 0x0028380000 - 0x002bc00000 0x0040080000 - 0x0041c80000 0x0045100000 - 0x0045180000 0x0045600000 - 0x0045640000 0x0045810000 - 0x0045860000 0x0045950000 - 0x0045950400 0x0045a50000 - 0x0045a50400 0x0045b04000 - 0x0045b06400 0x0045d10000 - 0x0045d24000 0x0046000000 - 0x0060000000 0x0400000000 - 0x0800000000 0x4c3c020000 - 0x4c3c030000 0x4c3e000000 - 0x4c3e040000 0x5400000000 - 0x5402000000 then mcu provides the following ranges for wkup 0x0042000000 - 0x0044410020 0x0045000000 - 0x0045030000 0x0045080000 - 0x00450a0000 0x0045808000 - 0x0045808800 0x0045b00000 - 0x0045b02400 This based on looking at "figure 1-1. device top-level block diagram" and the memory map in TRM. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html