> Not 100% sure. Maybe Wolfgang or someone else know what the existing
> m8260 pci functionality is suppose to work with. It seems
> odd that it
> did not have some of the bits you added for the 8272ads. Its
> not clear
> to me if it actually worked on any systems or not. Let see
> if Wolfgang
> has any insight as a first step.
The current one works on 8266/8265 based boards. It requires u-boot to
partiallyt set up PCI first.
I have a patch tat enables 8266ADS support, but have never posted it
(also because it has been superceded by PQ2ADS patches)
The missing pieces are the siumcr setup, which is done in U-Boot (almost
better to do it there as it is highly board dependant, and you would
have an afoul lot of #ifdefs to support all variants)
The other missing part is setup of the second outbound PCI wondow
(pcimask1/pcibr1). This is not used, bacqause the whole outbound window
is set up to be contiguous, and is covered by pcimsk0/pcibr0
I am running a slightly modified version of m8260_setup_pci on an
internal board port, and it works just fine.
Only change I'v had to do (to m8260_find bridges) is to add a bit on the
IORESOURCE_IO part, so that IO memory is detected correctly.
pci_init_resource(&hose->io_resource,
MPC826x_PCI_LOWER_IO,
MPC826x_PCI_UPPER_IO,
IORESOURCE_IO | 1, "PCI I/O"); // the 1 added
so IO areas work. :FIXME: find real source
