ppc4xx_find_bridges( ) hangs kernel on Xilinx ML300 (PCI)
Awesome! You Rock! -mikew Peter Ryser wrote: > The PCI support that is currently included in the Linux kernel tree is > for the V2PDK based OPB -> PCI bridge. It will not work with the EDK > based OPB -> PCI bridge, i.e. you will find exactly what you see. > > Please download the EDK reference design for ML300 from > http://www.xilinx.com/ise/embedded/edk_examples.htm (design #6). The > design contains the V2PDK based bridge (including the pcore therefor) > and, thus, the Linux kernel will work fine with that design. > > We are currently working on moving to the EDK based bridge and the Linux > kernel tree will be patched once this work is completed. > > - Peter > > > Mike Wellington wrote: > >> >> Hi- >> I am trying to port the Xilinx PCI code to >> an embedded linux kernel. The code calls >> ppc4xx_find_bridges( ) during the kernel initialization >> and hangs the kernel. >> >> I built the GPL 2.4 kernel from the Open Source >> archives and it hangs also. >> >> Then I copied ppc405_pci.c from the GPL source >> to my kernel tree and copied head_4xx.S from the >> GPL source to my kernel tree and it still >> hangs. >> >> I'm starting to wonder if there is something >> wrong with the PCI support for the Xilinx OCP PCI >> core. >> >> Does anybody have a working PCI device on a >> Xilinx Virtex-II Pro using the Xilinx-supplied >> PCI core? >> >> -mike wellington >> wellington at lucent.com >> anyplatform at bithead.com >> >> >> >> ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
ppc4xx_find_bridges( ) hangs kernel on Xilinx ML300 (PCI)
Hi- I am trying to port the Xilinx PCI code to an embedded linux kernel. The code calls ppc4xx_find_bridges( ) during the kernel initialization and hangs the kernel. I built the GPL 2.4 kernel from the Open Source archives and it hangs also. Then I copied ppc405_pci.c from the GPL source to my kernel tree and copied head_4xx.S from the GPL source to my kernel tree and it still hangs. I'm starting to wonder if there is something wrong with the PCI support for the Xilinx OCP PCI core. Does anybody have a working PCI device on a Xilinx Virtex-II Pro using the Xilinx-supplied PCI core? -mike wellington wellington at lucent.com anyplatform at bithead.com ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
ppc4xx_find_bridges( ) hangs kernel on Xilinx ML300 (PCI)
The PCI support that is currently included in the Linux kernel tree is for the V2PDK based OPB -> PCI bridge. It will not work with the EDK based OPB -> PCI bridge, i.e. you will find exactly what you see. Please download the EDK reference design for ML300 from http://www.xilinx.com/ise/embedded/edk_examples.htm (design #6). The design contains the V2PDK based bridge (including the pcore therefor) and, thus, the Linux kernel will work fine with that design. We are currently working on moving to the EDK based bridge and the Linux kernel tree will be patched once this work is completed. - Peter Mike Wellington wrote: > > Hi- > I am trying to port the Xilinx PCI code to > an embedded linux kernel. The code calls > ppc4xx_find_bridges( ) during the kernel initialization > and hangs the kernel. > > I built the GPL 2.4 kernel from the Open Source > archives and it hangs also. > > Then I copied ppc405_pci.c from the GPL source > to my kernel tree and copied head_4xx.S from the > GPL source to my kernel tree and it still > hangs. > > I'm starting to wonder if there is something > wrong with the PCI support for the Xilinx OCP PCI > core. > > Does anybody have a working PCI device on a > Xilinx Virtex-II Pro using the Xilinx-supplied > PCI core? > > -mike wellington > wellington at lucent.com > anyplatform at bithead.com > > > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
