[U-Boot] MPC8555 pci issue

[Ashok Kumar Kacham]

Hi all,

 we have a MPC8555 custom designed board, where we ported u-boot(1.3.1)
and linux 2.6.24(without PCI). we have a pci-to-usb
controller(32bit,33MHZ,PCI1 controller, IDSEL 18) on pci bus, if we
enable the PCI in u-boot it is hanging while doing PCI enumeration, then
we disabled PCI and tried to read the configuration data(vendor and
device id) of the usb controller by giving following commands.

$md 0xe0008000 0x80009000
$md 0xe0008004

then it is hanging, when we check the pci signals(frame, idsel, irdy, trdy
etc) they seem to be proper, even the chip is responding with its vendor
and device id(we could see then on the analyzer). what could be the
problem.


Regards,
-- 
Ashok Kumar Kacham
Member(Research Staff),
Central Research Laboratory,
Bharat Electronics Ltd,
Bangalore-13.


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