Commit 3da34aa brakes MSI support on MPC8308 (possibly all MPC83xx)

Hi Kumar, All,

I've found that MSI work correctly with older kernels on my MPC8308RDB board and don't work with newer ones. After bisecting I've found that the source of the problem is commit 3da34aa:

commit 3da34aae03d498ee62f75aa7467de93cce3030fd
Author: Kumar Gala [off-list ref]
Date:   Tue May 12 15:51:56 2009 -0500

    powerpc/fsl: Support unique MSI addresses per PCIe Root Complex

    Its feasible based on how the PCI address map is setup that the region
    of PCI address space used for MSIs differs for each PHB on the same SoC.

    Instead of assuming that the address mappes to CCSRBAR 1:1 we read
    PEXCSRBAR (BAR0) for the PHB that the given pci_dev is on.

    Signed-off-by: Kumar Gala [off-list ref]

I can see BAR0 initialization for 85xx/86xx hardware but not for 83xx neigher in the kernel nor in U-Boot (that makes me think that all 83xx can be affected).
I'm not actually an PCI expert so I've just tried to write IMMR base address to the BAR0 register from the U-Boot to get the correct address but this doesn't help.
Please direct me how to init 83xx PCIE controller to make it compatible with this patch.

Thanks in advance.

Regards, Ilya.