> BUT if we take into consideration that:
> 1. Freescale is a serious dude in the hood and on the whole does a good
> job with its products and their Linux support.
Sure but that's irrelevant to the technical problem at hand :-)
> 2. The P2020 does state it has an MSI mechanism support (although one is
> not present as a PCIe capability header for some reason)
Then it's broken :-(
> 3. Errors in general and AER are major features in PCIe.
> 4. PCIe has been here quite a while and it is not new to Freescale or
> anyone else.
Right but we don't do AER on ppc44x either, I know we should but for
some reason, AER hasn't been on anybody #1 priority list in embedded
world so far...
> I am much more inclined to believe that I have missed something by a
> mile then that Freescale did. I just don't know what I am missing.
No, I think you haven't and we just need to fix it :-)
Cheers,
Ben.
> My device tree is a clone of "arch/ powerpc/ boot/ dts/ p2020rdb.dts"
>
> It has a PCI node that looks like this:
> ----------------------------- snip -----------------------------
> pci0: pcie@ffe09000 {
> cell-index = <1>;
> compatible = "fsl,mpc8548-pcie";
> device_type = "pci";
> #interrupt-cells = <1>;
> #size-cells = <2>;
> #address-cells = <3>;
> reg = <0 0xffe09000 0 0x1000>;
> bus-range = <0 255>;
> ranges = <0x2000000 0x0 0xa0000000 0 0xa0000000 0x0 0x20000000
> 0x1000000 0x0 0x00000000 0 0xffc30000 0x0 0x10000>;
> clock-frequency = <33333333>;
> interrupt-parent = <&mpic>;
> interrupts = <25 2>;
> interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
> interrupt-map = <
> /* IDSEL 0x0 */
> 0000 0x0 0x0 0x1 &mpic 0x4 0x1
> 0000 0x0 0x0 0x2 &mpic 0x5 0x1
> 0000 0x0 0x0 0x3 &mpic 0x6 0x1
> 0000 0x0 0x0 0x4 &mpic 0x7 0x1
> >;
> pcie@0 {
> reg = <0x0 0x0 0x0 0x0 0x0>;
> #size-cells = <2>;
> #address-cells = <3>;
> device_type = "pci";
> ranges = <0x2000000 0x0 0xa0000000
> 0x2000000 0x0 0xa0000000
> 0x0 0x20000000
>
> 0x1000000 0x0 0x0
> 0x1000000 0x0 0x0
> 0x0 0x100000>;
> };
> };
> ----------------------------- snap -----------------------------
>
> and under "soc" it has an MSI node that looks like that:
> ----------------------------- snip -----------------------------
> msi@41600 {
> compatible = "fsl,p2020-msi", "fsl,mpic-msi";
> reg = <0x41600 0x80>;
> msi-available-ranges = <0 0x100>;
> interrupts = <
> 0xe0 0
> 0xe1 0
> 0xe2 0
> 0xe3 0
> 0xe4 0
> 0xe5 0
> 0xe6 0
> 0xe7 0>;
> interrupt-parent = <&mpic>;
> };
> ----------------------------- snap -----------------------------
>
> -- Liberty
>
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