From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cyrille Pitchen Subject: [PATCH 0/5] PCI: Add support to the Cadence PCIe controller Date: Thu, 23 Nov 2017 16:01:45 +0100 Message-ID: Return-path: Sender: linux-pci-owner@vger.kernel.org To: bhelgaas@google.com, kishon@ti.com, lorenzo.pieralisi@arm.com, linux-pci@vger.kernel.org Cc: adouglas@cadence.com, stelford@cadence.com, dgary@cadence.com, kgopi@cadence.com, eandrews@cadence.com, thomas.petazzoni@free-electrons.com, sureshp@cadence.com, nsekhar@ti.com, linux-kernel@vger.kernel.org, robh@kernel.org, devicetree@vger.kernel.org, Cyrille Pitchen List-Id: devicetree@vger.kernel.org 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