Hi, I have seen in linux/arch/arm that mach-kirkwood and mach-mv78xx0 have specific pcie code are you suggesting to get inspiration from this ARM platform ? Stefano 2009/9/11 Grant Grundler <grundler@xxxxxxxxxxxxxxxx>: > On Wed, Sep 09, 2009 at 05:20:44PM +0200, Stefano Tebaldi wrote: >> Hi all, >> >> I will have to work with a board (SoC) with an ARM926EJ-S and several >> peripherals including a PCIe core that can act either as RC or EP >> >> I have to run on it Linux Kernel 2.6.19 or higher and I can start from >> a porting done for another similar board with the same ARM (but >> without PCIe) >> >> Unfortunately at the moment I have not the board yet and in the >> meanwhile I am doing some study and analysis activity. In the case of >> PCIe RC mode, I am wondering which activities I will have to do on >> Linux internals and PCI/PCIe Linux subsystem, in particular on the >> PCIe port driver (pcieport-driver in linux/drivers/pci/pcie). I can't >> understand if it is suitable for any Root Complex device or I will >> have to write a specific driver. In my case the PCIe Root Complex is >> delivered from Synopsys and is not a typical Intel PCI Express port >> that can be find on a normal PC > > Use the other RISC architectures for inspiration. They have the same problem. > I wrote the PCI support for PARISC for two different PCI (not PCIe) Host Bus > controllers. See drivers/parisc/dino.c and lba_pci.c. > > I'll warn that lba_pci.c doesn't support PCI-PCI bridges correctly and it's > been on my TODO list for more than a year. So consider the code from Alpha, > ARM, IA64, or SPARC to compare against. IA64 does support PCIe on several > chipsets and is probably a good starting point. > > hth, > grant > >> any suggestions / indication ? >> >> thank you very much >> >> Stefano >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-pci" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
