TI's J721E SoC uses Cadence PCIe core to implement both RC mode and EP mode. The high level features are: *) Supports Legacy, MSI and MSI-X interrupt *) Supports upto GEN4 speed mode *) Supports SR-IOV *) Supports multiple physical function *) Ability to route all transactions via SMMU This patch series *) Add support in Cadence PCIe core to be used for TI's J721E SoC *) Add a driver for J721E PCIe wrapper This is a trimmed down series of the initial RFC series [1]. Changes from RFC [1]: *) Ability to route all transactions via SMMU is removed *) SR-IOV support is removed *) Miscellaneous improvement to endpoint core is removed All these will be sent as smaller series. I've also pushed the series along with device tree changes [2]. [1] -> https://lkml.org/lkml/2019/6/4/619 [2] -> https://github.com/kishon/linux-wip.git j7_pci_v1 Kishon Vijay Abraham I (13): PCI: cadence: Remove stray "pm_runtime_put_sync()" in error path linux/kernel.h: Add PTR_ALIGN_DOWN macro PCI: cadence: Add support to use custom read and write accessors PCI: cadence: Add support to start link and verify link status PCI: cadence: Add read and write accessors to perform only 32-bit accesses PCI: cadence: Allow pci_host_bridge to have custom pci_ops PCI: cadence: Add new *ops* for CPU addr fixup PCI: cadence: Use local management register to configure Vendor ID dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC dt-bindings: PCI: Add EP mode dt-bindings for TI's J721E SoC PCI: j721e: Add TI J721E PCIe driver misc: pci_endpoint_test: Add J721E in pci_device_id table MAINTAINERS: Add Kishon Vijay Abraham I for TI J721E SoC PCIe .../bindings/pci/ti,j721e-pci-ep.yaml | 113 +++++ .../bindings/pci/ti,j721e-pci-host.yaml | 161 +++++++ MAINTAINERS | 3 +- drivers/misc/pci_endpoint_test.c | 9 + drivers/pci/controller/cadence/Kconfig | 23 + drivers/pci/controller/cadence/Makefile | 1 + drivers/pci/controller/cadence/pci-j721e.c | 430 ++++++++++++++++++ .../pci/controller/cadence/pcie-cadence-ep.c | 10 +- .../controller/cadence/pcie-cadence-host.c | 55 ++- drivers/pci/controller/cadence/pcie-cadence.c | 48 +- drivers/pci/controller/cadence/pcie-cadence.h | 133 +++++- include/linux/kernel.h | 1 + 12 files changed, 958 insertions(+), 29 deletions(-) create mode 100644 Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml create mode 100644 Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml create mode 100644 drivers/pci/controller/cadence/pci-j721e.c -- 2.17.1
