Gentle reminder... On Saturday 23 July 2022 11:05:06 Pali Rohár wrote: > Gentle reminder... > > On Monday 11 July 2022 00:51:08 Pali Rohár wrote: > > Hello! > > > > Together with Mauri we are working on extending pci-mvebu.c driver to > > support Orion PCIe controllers as these controllers are same as mvebu > > controller. > > > > There is just one big difference: Config space access on Orion is > > different. mvebu uses classic Intel CFC/CF8 registers for indirect > > config space access but Orion has direct memory mapped config space. > > So Orion DTS files need to have this memory range for config space and > > pci-mvebu.c driver have to read this range from DTS and properly map it. > > > > So my question is: How to properly define config space range in device > > tree file? In which device tree property and in which format? Please > > note that this memory range of config space is PCIe root port specific > > and it requires its own MBUS_ID() like memory range of PCIe MEM and PCIe > > IO mapping. Please look e.g. at armada-385.dtsi how are MBUS_ID() used: > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/armada-385.dtsi > > > > Krzysztof, would you be able to help with proper definition of this > > property, so it would be fine also for schema checkers or other > > automatic testing tools?
