Hi all,
I didn't fully understand the "ranges" usage, here is one situation which I dunno
how to handle.
In arch/arm/boot/dts/berlin2q.dtsi, we describe the /soc ranges as
ranges = <0 0xf7000000 0x1000000>;
That's fine. Now there's a pci device based on pcie-designware.c which prefer
put "config" space in reg. But the config space starts at 0xe0000000, due to
the /soc ranges, the "config" space following pcie node is not correct in fact.
soc {
ranges = <0 0xf7000000 0x1000000>;
...
pcie: pcie@e40000 {
compatible = "...";
reg = <0xe40000 0x10000>, <0xe0000000 0x8000000>;
reg-names = "dbi", "pad", "config";
...
};
...
};
How to define the "config" space in this situation? Did we need to change
the /soc ranges as the following?
soc {
ranges;
}
Thanks in advance,
Jisheng
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