On Thursday 18 February 2016 10:11:37 Vladimir Murzin wrote:

Right, I thought in a wrong way, in opposite it makes more sense now.

.dtsi

/* below the soc/ */
smb {
        compatible = "simple-bus";
        #address-cells = <2>;
        #size-cells = <1>;
        ranges = <0 0 0x40200000 0x10000>,
                 <1 0 0xa0000000 0x10000>;
};

That looks good, yes.

Is 0x10000 the correct maximum addressable size of the external bus
in both cases?

Intuitively, I would guess that the 0xa0000000 range might
be much wider.

.dts

smb {
        ethernet@0,0 {
                compatible = "smsc,lan9220", "smsc,lan9115";
                reg = <0 0x0 0x10000>;
                interrupts = <13>;
                interrupt-parent = <&nvic>;
                smsc,irq-active-high;
};


and looking again at .dtsi it seems to me that fpgaio should be moved
below the soc/ under separate bus interface which would hosts audio and
spi too or I keep missing things around device-tree?

I don't see the audio and spi nodes, so I'm not sure where exactly
you would put them.

Ideally those things should be visible from a block diagram in the
datasheet.

	Arnd