On Thu, Oct 17, 2024 at 10:58:35AM +0900, Damien Le Moal wrote: > This patch series fix the PCI address mapping handling of the Rockchip > PCI endpoint driver, refactor some of its code, improves link training > and adds handling of the PERST# signal. > > This series is organized as follows: > - Patch 1 fixes the rockchip ATU programming > - Patch 2, 3 and 4 introduce small code improvments > - Patch 5 implements the .align_addr() operation to make the RK3399 > endpoint controller driver fully functional with the new > pci_epc_mem_map() function > - Patch 6 uses the new align_addr operation function to fix the ATU > programming for MSI IRQ data mapping > - Patch 7, 8, 9 and 10 refactor the driver code to make it more > readable > - Patch 11 introduces the .stop() endpoint controller operation to > correctly disable the endpopint controller after use > - Patch 12 improves link training > - Patch 13 implements handling of the #PERST signal > - Patch 14 adds a DT overlay file to enable EP mode and define the > PERST# GPIO (reset-gpios) property. > Damien, please wait for my review before spinning the next revision. Sorry for the delay. - Mani > These patches were tested using a Pine Rockpro64 board used as an > endpoint with the test endpoint function driver and a prototype nvme > endpoint function driver. > > Changes from v4: > - Added patch 6 > - Added comments to patch 12 and 13 to clarify link training handling > and PERST# GPIO use. > - Added patch 14 > > Changes from v3: > - Addressed Mani's comments (see mailing list for details). > - Removed old patch 11 (dt-binding changes) and instead use in patch 12 > the already defined reset_gpios property. > - Added patch 6 > - Added review tags > > Changes from v2: > - Split the patch series > - Corrected patch 11 to add the missing "maxItem" > > Changes from v1: > - Changed pci_epc_check_func() to pci_epc_function_is_valid() in patch > 1. > - Removed patch "PCI: endpoint: Improve pci_epc_mem_alloc_addr()" > (former patch 2 of v1) > - Various typos cleanups all over. Also fixed some blank space > indentation. > - Added review tags > > Damien Le Moal (14): > PCI: rockchip-ep: Fix address translation unit programming > PCI: rockchip-ep: Use a macro to define EP controller .align feature > PCI: rockchip-ep: Improve rockchip_pcie_ep_unmap_addr() > PCI: rockchip-ep: Improve rockchip_pcie_ep_map_addr() > PCI: rockchip-ep: Implement the pci_epc_ops::align_addr() operation > PCI: rockchip-ep: Fix MSI IRQ data mapping > PCI: rockchip-ep: Rename rockchip_pcie_parse_ep_dt() > PCI: rockchip-ep: Refactor rockchip_pcie_ep_probe() memory allocations > PCI: rockchip-ep: Refactor rockchip_pcie_ep_probe() MSI-X hiding > PCI: rockchip-ep: Refactor endpoint link training enable > PCI: rockship-ep: Implement the pci_epc_ops::stop_link() operation > PCI: rockchip-ep: Improve link training > PCI: rockchip-ep: Handle PERST# signal in endpoint mode > arm64: dts: rockchip: Add rockpro64 overlay for PCIe endpoint mode > > arch/arm64/boot/dts/rockchip/Makefile | 1 + > .../rockchip/rk3399-rockpro64-pcie-ep.dtso | 20 + > drivers/pci/controller/pcie-rockchip-ep.c | 432 ++++++++++++++---- > drivers/pci/controller/pcie-rockchip-host.c | 4 +- > drivers/pci/controller/pcie-rockchip.c | 21 +- > drivers/pci/controller/pcie-rockchip.h | 24 +- > 6 files changed, 406 insertions(+), 96 deletions(-) > create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-rockpro64-pcie-ep.dtso > > -- > 2.47.0 > -- மணிவண்ணன் சதாசிவம்
