[Please, always start a new mail when starting a new thread. Don't reply to an old one and change the subject, it messes up people using mailbox threading.]
On Fri, Aug 16, 2002 at 11:39:15AM -0700, Khai Trinh wrote: > On one of your response email to me, you said the > 440GP maps PCI<->PLB 1:1 and I can use the PCI bus > address directly as a PLB address to program the 440GP > DMA controller. > > The thing is that the DMA high and low register only > allows 36-bit programming whereas the PCI bus address > given to me by the Host is 64-bit. I was answering with respect to the Ebony PCI-X host bridge configuration. > Don't I have to manually setup the PCI-PLB mapping > before I can program the DMA controller? OR the 440 > kernel has already handle that? The PCI-X host bridge configuration in the Ebony port is implemented for host operation only (i.e. it has set up windows and controls BAR assignment within a controlled PCI address space). If you need a special translation for your particular adapter application, you will need to modify that setup accordingly. Regards, -- Matt Porter porter at cox.net This is Linux Country. On a quiet night, you can hear Windows reboot. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
