I am currently trying to get an MPC5200-based board to run Linux
2.6.28. Most of the devices are working, however i have some issues
with the PCI-bus. More precisely, the issue is that all of
the cards' IO-regions are mapped to address 0x0.
In my device tree I have the following:
p...@f0000d00 {
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
device_type = "pci";
compatible = "fsl,mpc5200b-pci","fsl,mpc5200-pci";
reg = <0xf0000d00 0x100>;
interrupt-map-mask = <0xf800 0 0 7>;
interrupt-map = <0xb000 0 0 1 &mpc5200_pic 0 0 3 // MPC5200
0xb000 0 0 2 &mpc5200_pic 0 0 3
0xb000 0 0 3 &mpc5200_pic 0 0 3
0xb000 0 0 4 &mpc5200_pic 0 0 3
0xb800 0 0 1 &mpc5200_pic 1 1 3 // c64x0
0xb800 0 0 2 &mpc5200_pic 1 1 3
0xb800 0 0 3 &mpc5200_pic 1 1 3
0xb800 0 0 4 &mpc5200_pic 1 1 3
0xc000 0 0 1 &mpc5200_pic 1 1 3 // c64x1
0xc000 0 0 2 &mpc5200_pic 1 1 3
0xc000 0 0 3 &mpc5200_pic 1 1 3
0xc000 0 0 4 &mpc5200_pic 1 1 3
0xc800 0 0 1 &mpc5200_pic 1 1 3 // c64x2
0xc800 0 0 2 &mpc5200_pic 1 1 3
0xc800 0 0 3 &mpc5200_pic 1 1 3
0xc800 0 0 4 &mpc5200_pic 1 1 3
0xd000 0 0 1 &mpc5200_pic 1 1 3 // c64x3
0xd000 0 0 2 &mpc5200_pic 1 1 3
0xd000 0 0 3 &mpc5200_pic 1 1 3
0xd000 0 0 4 &mpc5200_pic 1 1 3
0xd800 0 0 1 &mpc5200_pic 1 1 3 // c64x4
0xd800 0 0 2 &mpc5200_pic 1 1 3
0xd800 0 0 3 &mpc5200_pic 1 1 3
0xd800 0 0 4 &mpc5200_pic 1 1 3>;
clock-frequency = <0x1e84800>; //<0>; // From boot loader
interrupts = <2 8 0 2 9 0 2 10 0>;
interrupt-parent = <&mpc5200_pic>;
bus-range = <0 0>;
ranges = <0x02000000 0 0x50000000 0x50000000 0 0x10000000
0x01000000 0 0x00000000 0x60000000 0 0x01000000>;
};
The cards' memory regions are mapped out fine to different addresses
in the 0x50000000-0x60000000 range. However, the IO regions are all mapped
to zero.
Do you have any idea on what could be wrong or in which direction I
should be looking?
--
Hälsningar/Regards
Tobias Knutsson
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