On 31/12/2015 01:10, Martin Blumenstingl wrote:
> linux 4.4 (since commit 08b3c894e56580b8ed3e601212a25bda974c3cc2
> "MIPS: lantiq: Disable xbar fpi burst mode") requires that the xbar is
> defined in the .dts of vrx200 (VR9) SoCs.
> ---
> I am not sure if the xbar size is really 0x1000 or if it's smaller/larger.
> Unfortunately there doesn't seem to be public information about it, but
> at least 0x1000 works.
>
had a look in the datasheet just now and the range is 0x1F400000-0x1F400FFF
> target/linux/lantiq/dts/vr9.dtsi | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/target/linux/lantiq/dts/vr9.dtsi
> b/target/linux/lantiq/dts/vr9.dtsi
> index 136483a..df63ce7 100644
> --- a/target/linux/lantiq/dts/vr9.dtsi
> +++ b/target/linux/lantiq/dts/vr9.dtsi
> @@ -75,6 +75,11 @@
> interrupt-parent = <&icu0>;
> interrupts = <115>;
> };
> +
> + xbar0: xbar@400000 {
> + compatible = "lantiq,xbar-xway";
> + reg = <0x400000 0x1000>;
> + };
> };
>
> fpi@10000000 {
> @@ -184,7 +189,6 @@
> 0xE105400 0x400>; /* pci bridge */
> status = "disabled";
> };
> -
> };
>
> vdsl {
>
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