[PATCH v3 10/12] ARM: mvebu: Relocate Armada 370/XP DeviceBus device tree nodes

On Tue, Jun 18, 2013 at 06:16:26PM +0200, Arnd Bergmann wrote:

On Tuesday 18 June 2013, Ezequiel Garcia wrote:

quoted

+               devbus-bootcs {
+                       compatible = "marvell,mvebu-devbus";
+                       reg = <0xffff0001 0x10400 0x8>;
+                       ranges = <0 MBUS_ID(0x01, 0x2f) 0 0xffffffff>;
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+                       clocks = <&coreclk 0>;
+                       status = "disabled";
+               };

This is a violation of the binding as far as I can tell, since you don't specify ranges
to access the 0xffff0001 0x10400 address. However, as I explained in my comment for
the binding, I think you should clarify the binding and leave the implementation
as you have it here.

Mmm... again I got lost here. Which 'ranges' you say I don't specify to
access the (formerly) 0xffff0001?

AFAIK, 'ranges' are only for children translation, which means I don't
need to specify a ranges for that in the devbus node, but in its parent,
right?

This ranges thing can be very tricky, so please correct me if I'm
mistaken.

-- 
Ezequiel Garc?a, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com