Messages in this thread | | | From | Cyrille Pitchen <> | Subject | [PATCH 0/5] PCI: Add support to the Cadence PCIe controller | Date | Thu, 23 Nov 2017 16:01:45 +0100 |
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Hi all,
this series of patches adds support to the Cadence PCIe controller. It was tested on a ARM64 platform emulated by a Palladium running both linux-next (next-20171123) and pci-next kernels.
The host mode was tested with some PCIe devices connected to the Palladium through a speed-bridge. Some of those devices were a USB host controller and a SATA controller. The PCIe host controller was also tested with a second controller configured in endpoint mode and connected back to back to the first controller.
The EndPoint Controller (EPC) driver of this series was tested with the pci-epf-test.c EndPoint Function (EPF) driver and the pcitest userspace program.
For linux-next, I applied this series on top of Kishon's patch ("PCI: endpoint: Use EPC's device in dma_alloc_coherent/dma_free_coherent") otherwise dma_alloc_coherent() fails when called by pci_epf_alloc_space().
Also, I patched drivers/Makefile rather than drivers/pci/Makefile to make the drivers/pci/cadence/pcie-cadence-ep.o linked after drivers/pci/endpoint/*.o objects, otherwise the built-in pci-cadence-ep driver would be probed before the PCI endpoint framework would have been initialized, which results in a kernel crash. I guess this is the reason why the "pci/dwc" line was also put in drivers/Makefile, right after the "pci/endpoint" line.
Best regards,
Cyrille
Cyrille Pitchen (4): PCI: Add vendor ID for Cadence PCI: cadence: Add host driver for Cadence PCIe controller dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller PCI: cadence: add EndPoint Controller driver for Cadence PCIe controller
Scott Telford (1): dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe host controller
.../devicetree/bindings/pci/cdns,cdns-pcie-ep.txt | 20 + .../bindings/pci/cdns,cdns-pcie-host.txt | 54 ++ drivers/Makefile | 1 + drivers/pci/Kconfig | 1 + drivers/pci/cadence/Kconfig | 33 ++ drivers/pci/cadence/Makefile | 3 + drivers/pci/cadence/pcie-cadence-ep.c | 553 +++++++++++++++++++++ drivers/pci/cadence/pcie-cadence-host.c | 425 ++++++++++++++++ drivers/pci/cadence/pcie-cadence.c | 110 ++++ drivers/pci/cadence/pcie-cadence.h | 325 ++++++++++++ include/linux/pci_ids.h | 2 + 11 files changed, 1527 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt create mode 100644 Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.txt create mode 100644 drivers/pci/cadence/Kconfig create mode 100644 drivers/pci/cadence/Makefile create mode 100644 drivers/pci/cadence/pcie-cadence-ep.c create mode 100644 drivers/pci/cadence/pcie-cadence-host.c create mode 100644 drivers/pci/cadence/pcie-cadence.c create mode 100644 drivers/pci/cadence/pcie-cadence.h
-- 2.11.0
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