Add R-Car S4-8 (R-Car Gen4) PCIe Host and Endpoint support. To support them, modify PCIe DesignWare common codes. Changes from v13: https://lore.kernel.org/linux-pci/20230418122403.3178462-1-yoshihiro.shimoda.uh@xxxxxxxxxxx/ - Based on next-20230424. - (no change, JFYI) Based on the following cleanups patches: [PATCH v4 00/14] PCI: dwc: Relatively simple fixes and cleanups https://lore.kernel.org/linux-pci/20230414021832.13167-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx/ - Fix typos in the patch 4/22 and 5/22. - Reviewed-by or Acked-by from Manivannan in the patch {4,5,10,16,18,21,22}/22. - Acked-by from Jesper in the patch 5/22. - Acked-by from Rob in the patch 16/22. - Merge the patch 8/22 to the 6/22. - Change the subject in the patch 9/22. - Fix incorrect implementation in the patch 11/22. - Fix issues in the patch 12/22. - Revise the descriptions in the patch 1[34569]/22. - Update copyright in the patch 1[78]/22. - Fix examples in the patch 1[78]/22. - Fix some minor issues in the patch 22/22. Changes from v12: https://lore.kernel.org/linux-pci/20230414061622.2930995-1-yoshihiro.shimoda.uh@xxxxxxxxxxx/ - Based on next-20230414 - (no change, JFYI) Based on the following cleanups patches: [PATCH v4 00/14] PCI: dwc: Relatively simple fixes and cleanups https://lore.kernel.org/linux-pci/20230414021832.13167-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx/ - Use PCI_HEADER_TYPE_MULTI_FUNC on probe.c and quirks.c. - Rename "Legacy IRQ" with "INTx". - Change order of patches. (INTx related patches at first.) - Change maxItems of reg and reg-names on the dt-bindings doc. - Fix minor typos. - Change waiting period in the INTx function and add comment. Yoshihiro Shimoda (21): PCI: Add PCI_EXP_LNKCAP_MLW macros PCI: Add PCI_HEADER_TYPE_MULTI_FUNC PCI: Add INTx Mechanism Messages macros PCI: Rename PCI_EPC_IRQ_LEGACY to PCI_EPC_IRQ_INTX PCI: dwc: Rename "legacy_irq" to "INTx_irq" in DWC core PCI: dwc: Change arguments of dw_pcie_prog_ep_outbound_atu() PCI: dwc: Add members into struct dw_pcie_outbound_atu PCI: dwc: Add support for triggering INTx IRQs from endpoint drivers PCI: dwc: Add dw_pcie_link_set_max_link_width() PCI: dwc: Add dw_pcie_link_set_max_width() PCI: dwc: Add dw_pcie_link_set_max_cap_width() PCI: dwc: Add EDMA_UNROLL capability flag PCI: dwc: Expose dw_pcie_ep_exit() to module PCI: dwc: Introduce .ep_pre_init() and .ep_deinit() dt-bindings: PCI: dwc: Update maxItems of reg and reg-names dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint PCI: rcar-gen4: Add R-Car Gen4 PCIe Host support PCI: rcar-gen4-ep: Add R-Car Gen4 PCIe Endpoint support MAINTAINERS: Update PCI DRIVER FOR RENESAS R-CAR for R-Car Gen4 misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controller .../bindings/pci/rcar-gen4-pci-ep.yaml | 98 +++++++++ .../bindings/pci/rcar-gen4-pci-host.yaml | 109 ++++++++++ .../bindings/pci/snps,dw-pcie-ep.yaml | 4 +- .../devicetree/bindings/pci/snps,dw-pcie.yaml | 4 +- MAINTAINERS | 1 + drivers/misc/pci_endpoint_test.c | 4 + .../pci/controller/cadence/pcie-cadence-ep.c | 2 +- drivers/pci/controller/dwc/Kconfig | 18 ++ drivers/pci/controller/dwc/Makefile | 4 + drivers/pci/controller/dwc/pci-dra7xx.c | 2 +- drivers/pci/controller/dwc/pci-imx6.c | 4 +- drivers/pci/controller/dwc/pci-keystone.c | 2 +- .../pci/controller/dwc/pci-layerscape-ep.c | 4 +- drivers/pci/controller/dwc/pcie-artpec6.c | 2 +- .../pci/controller/dwc/pcie-designware-ep.c | 104 +++++++-- .../pci/controller/dwc/pcie-designware-plat.c | 4 +- drivers/pci/controller/dwc/pcie-designware.c | 202 +++++++++++------- drivers/pci/controller/dwc/pcie-designware.h | 31 ++- drivers/pci/controller/dwc/pcie-keembay.c | 2 +- drivers/pci/controller/dwc/pcie-qcom-ep.c | 4 +- .../pci/controller/dwc/pcie-rcar-gen4-ep.c | 166 ++++++++++++++ .../pci/controller/dwc/pcie-rcar-gen4-host.c | 141 ++++++++++++ drivers/pci/controller/dwc/pcie-rcar-gen4.c | 187 ++++++++++++++++ drivers/pci/controller/dwc/pcie-rcar-gen4.h | 48 +++++ drivers/pci/controller/dwc/pcie-tegra194.c | 2 +- drivers/pci/controller/dwc/pcie-uniphier-ep.c | 2 +- drivers/pci/controller/pcie-rcar-ep.c | 2 +- drivers/pci/controller/pcie-rockchip-ep.c | 2 +- drivers/pci/endpoint/functions/pci-epf-test.c | 12 +- drivers/pci/pci.h | 19 ++ drivers/pci/probe.c | 2 +- drivers/pci/quirks.c | 4 +- include/linux/pci-epc.h | 4 +- include/uapi/linux/pci_regs.h | 7 + 34 files changed, 1071 insertions(+), 132 deletions(-) create mode 100644 Documentation/devicetree/bindings/pci/rcar-gen4-pci-ep.yaml create mode 100644 Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4-ep.c create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4-host.c create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4.c create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4.h -- 2.25.1
