RE: PCI scanning and devices initialization

Hi,

Yes, there may be something wrong with your hardware.

This could only be _one_ reason

At the PCI init, PCI devices don't yet have an address, so the host
detects them using configuration cycles. Theses uses a different
addressing scheme, using each address line as a kind of "chip select".
So the devices know the host is "talking" to it just by
looking at it's
IDSEL line going asserted. If on your board the IDSEL isn't wired
properly then it won't work. Hopefully if that's the case,
you can just
wire it by hand, it's not a high speed signal.

Does the U-Boot PCI setup routine handles PCI devices behind a "PCI to
anything" bridge? Sometimes simple code ignores bridges. Don't know the
current U-Boot implementation. If not, there is no chance to access any
devices behind it (even if the hardware is correct).

JB

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