This is the second version of the patch series to add PCI root complex support to the tilegx architecture. Again, I am cc'ing the change that adds PCI support per-se to a wider audience. This series incorporates feedback from Jesper Juhl, Arnd Bergmann, and Bjorn Helgaas. - Use pcie_bus_configure_settings(), pci_scan_root_bus(), and pci_enable_resources(). - Use PCI_SLOT() and PCI_FUNC() as appropriate. - Stop enabling PCI_COMMAND_IO, since we don't support I/O space yet. - Use msleep() instead of mdelay() - Machine-generated code (e.g. iorpc_trio.c) is now terser and more human-readable. - Some whitespace issues (e.g. " * " before a particular pointer, and function return type on a line by itself too frequently) corrected. We don't currently plan to add support for I/O space. We didn't implement the kernel support in the RC driver, because only old, legacy devices use PCI I/O space and it seems unlikely that our chip will end up having to control one of these devices. Plus, supporting it costs one of 8 total TRIO PIO regions, which are in short supply. But this is secondary; we'll add support if needed in the future. arch/tile/Kconfig | 3 + arch/tile/gxio/Kconfig | 6 + arch/tile/gxio/Makefile | 1 + arch/tile/gxio/iorpc_trio.c | 307 +++++ arch/tile/gxio/trio.c | 49 + arch/tile/include/arch/trio.h | 72 ++ arch/tile/include/arch/trio_constants.h | 36 + arch/tile/include/arch/trio_def.h | 41 + arch/tile/include/arch/trio_pcie_intfc.h | 229 ++++ arch/tile/include/arch/trio_pcie_intfc_def.h | 32 + arch/tile/include/arch/trio_pcie_rc.h | 156 +++ arch/tile/include/arch/trio_pcie_rc_def.h | 24 + arch/tile/include/arch/trio_shm.h | 125 ++ arch/tile/include/arch/trio_shm_def.h | 19 + arch/tile/include/asm/pci.h | 99 ++- arch/tile/include/gxio/iorpc_trio.h | 97 ++ arch/tile/include/gxio/trio.h | 304 +++++ arch/tile/include/hv/drv_trio_intf.h | 195 ++++ arch/tile/kernel/Makefile | 4 + arch/tile/kernel/pci_gx.c | 1545 ++++++++++++++++++++++++++ arch/tile/kernel/setup.c | 6 + arch/tile/mm/pgtable.c | 7 - drivers/pci/quirks.c | 6 +- 23 files changed, 3363 insertions(+), 20 deletions(-) -- 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
