>> Mohit, >> >> I have checked with our hardware team and they confirmed that ATU >> registers are not implemented in our PCIE > >Which PCIe designware IP version you are using? At least since version 3.71 support of >viewport is available in IP. Older version was handling address translation using side band >signals implemented through vendor specific application registers. May be your case is also >similar. > Pratyush, Thanks for responding. Is there a register that I can poke to know the IP version. I have asked this to our hardware folks to know the version. I guess it is older than 3.71. >> SS. So we need to have a way to disable this in the core driver so >> that we can handle it in our glue layer driver. >> But this will be a regression on the existing driver. How do we handle this? > >May be you can add rd/wr_other_conf in struct pcie_host_ops. >Change designware driver to handle vendor specific rd/wr_other_conf, if it exists, else use >generic rd/wr_other_conf. > Yes, that is indeed what I did to solve this. I will be sending a patch for this once my driver is tested. Murali >In your vendor specific rd/wr_other_conf handler you can implement translation using your >application registers. > >Regards >Pratyush >> >> Murali >> >> >> -- >> 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
