Hi folks,
We have an Ocotea reference board (PPC 440GX) w/256M and have
tried running both stable 2.4.26 and 2.6.10-rc3 kernels from
penguinppc.org. For now the bootloader is still PIBS, though
we'll get U-Boot installed shortly.
As a first experiment we've tried installing a legacy card
with an Intel 82559 device on it. The warning seen from
pci_setup_device() suggests that PCI config space wasn't
read cleanly: a header type of 0x7f is encountered. Nothing
shows up under /proc/bus/pci. The card we'd actually like to
install has a transparent bridge (Intel 21152) and other devices
behind the bridge. Both cards are PCI-33 versus PCI-X.
To ask some really stupid questions first: what is the state of
PCI support with linux on this board? Have others tried to do
something like this with 33/66 Mhz PCI devices or am I in
uncharted waters?
Of the PCI #defines in platforms/ocotea.h I can correlate most
with data from the user's manual, but not the following:
#define OCOTEA_PCI_LOWER_IO 0x00000000
#define OCOTEA_PCI_UPPER_IO 0x0000ffff
#define OCOTEA_PCI_LOWER_MEM 0x80000000
#define OCOTEA_PCI_UPPER_MEM 0xffffefff
Is there some documentation I'm missing on these values?
Thanks in advance for any suggestions,
Chris
--
Chris Love // Continuous Computing Corporation
love at ccpu.com // http://www.ccpu.com
