diff options
Diffstat (limited to 'Documentation/devicetree/bindings')
4 files changed, 96 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt index 1da7ade3183c..c124f9bc11f3 100644 --- a/Documentation/devicetree/bindings/pci/designware-pcie.txt +++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt @@ -1,7 +1,9 @@ * Synopsys DesignWare PCIe interface Required properties: -- compatible: should contain "snps,dw-pcie" to identify the core. +- compatible: + "snps,dw-pcie" for RC mode; + "snps,dw-pcie-ep" for EP mode; - reg: Should contain the configuration address space. - reg-names: Must be "config" for the PCIe configuration space. (The old way of getting the configuration address space from "ranges" @@ -41,11 +43,11 @@ EP mode: Example configuration: - pcie: pcie@dffff000 { + pcie: pcie@dfc00000 { compatible = "snps,dw-pcie"; - reg = <0xdffff000 0x1000>, /* Controller registers */ - <0xd0000000 0x2000>; /* PCI config space */ - reg-names = "ctrlreg", "config"; + reg = <0xdfc00000 0x0001000>, /* IP registers */ + <0xd0000000 0x0002000>; /* Configuration space */ + reg-names = "dbi", "config"; #address-cells = <3>; #size-cells = <2>; device_type = "pci"; @@ -54,5 +56,15 @@ Example configuration: interrupts = <25>, <24>; #interrupt-cells = <1>; num-lanes = <1>; - num-viewport = <3>; + }; +or + pcie: pcie@dfc00000 { + compatible = "snps,dw-pcie-ep"; + reg = <0xdfc00000 0x0001000>, /* IP registers 1 */ + <0xdfc01000 0x0001000>, /* IP registers 2 */ + <0xd0000000 0x2000000>; /* Configuration space */ + reg-names = "dbi", "dbi2", "addr_space"; + num-ib-windows = <6>; + num-ob-windows = <2>; + num-lanes = <1>; }; diff --git a/Documentation/devicetree/bindings/pci/mobiveil-pcie.txt b/Documentation/devicetree/bindings/pci/mobiveil-pcie.txt new file mode 100644 index 000000000000..65038aa642e5 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/mobiveil-pcie.txt @@ -0,0 +1,73 @@ +* Mobiveil AXI PCIe Root Port Bridge DT description + +Mobiveil's GPEX 4.0 is a PCIe Gen4 root port bridge IP. This configurable IP +has up to 8 outbound and inbound windows for the address translation. + +Required properties: +- #address-cells: Address representation for root ports, set to <3> +- #size-cells: Size representation for root ports, set to <2> +- #interrupt-cells: specifies the number of cells needed to encode an + interrupt source. The value must be 1. +- compatible: Should contain "mbvl,gpex40-pcie" +- reg: Should contain PCIe registers location and length + "config_axi_slave": PCIe controller registers + "csr_axi_slave" : Bridge config registers + "gpio_slave" : GPIO registers to control slot power + "apb_csr" : MSI registers + +- device_type: must be "pci" +- apio-wins : number of requested apio outbound windows + default 2 outbound windows are configured - + 1. Config window + 2. Memory window +- ppio-wins : number of requested ppio inbound windows + default 1 inbound memory window is configured. +- bus-range: PCI bus numbers covered +- interrupt-controller: identifies the node as an interrupt controller +- #interrupt-cells: specifies the number of cells needed to encode an + interrupt source. The value must be 1. +- interrupt-parent : phandle to the interrupt controller that + it is attached to, it should be set to gic to point to + ARM's Generic Interrupt Controller node in system DT. +- interrupts: The interrupt line of the PCIe controller + last cell of this field is set to 4 to + denote it as IRQ_TYPE_LEVEL_HIGH type interrupt. +- interrupt-map-mask, + interrupt-map: standard PCI properties to define the mapping of the + PCI interface to interrupt numbers. +- ranges: ranges for the PCI memory regions (I/O space region is not + supported by hardware) + Please refer to the standard PCI bus binding document for a more + detailed explanation + + +Example: +++++++++ + pcie0: pcie@a0000000 { + #address-cells = <3>; + #size-cells = <2>; + compatible = "mbvl,gpex40-pcie"; + reg = <0xa0000000 0x00001000>, + <0xb0000000 0x00010000>, + <0xff000000 0x00200000>, + <0xb0010000 0x00001000>; + reg-names = "config_axi_slave", + "csr_axi_slave", + "gpio_slave", + "apb_csr"; + device_type = "pci"; + apio-wins = <2>; + ppio-wins = <1>; + bus-range = <0x00000000 0x000000ff>; + interrupt-controller; + interrupt-parent = <&gic>; + #interrupt-cells = <1>; + interrupts = < 0 89 4 >; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 0 &pci_express 0>, + <0 0 0 1 &pci_express 1>, + <0 0 0 2 &pci_express 2>, + <0 0 0 3 &pci_express 3>; + ranges = < 0x83000000 0 0x00000000 0xa8000000 0 0x8000000>; + + }; diff --git a/Documentation/devicetree/bindings/pci/pci-armada8k.txt b/Documentation/devicetree/bindings/pci/pci-armada8k.txt index c1e4c3d10a74..9e3fc15e1af8 100644 --- a/Documentation/devicetree/bindings/pci/pci-armada8k.txt +++ b/Documentation/devicetree/bindings/pci/pci-armada8k.txt @@ -12,7 +12,10 @@ Required properties: - "ctrl" for the control register region - "config" for the config space region - interrupts: Interrupt specifier for the PCIe controler -- clocks: reference to the PCIe controller clock +- clocks: reference to the PCIe controller clocks +- clock-names: mandatory if there is a second clock, in this case the + name must be "core" for the first clock and "reg" for the second + one Example: diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index b5f978a4cac6..1b7e7c36fda1 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -203,6 +203,7 @@ lwn Liebherr-Werk Nenzing GmbH macnica Macnica Americas marvell Marvell Technology Group Ltd. maxim Maxim Integrated Products +mbvl Mobiveil Inc. mcube mCube meas Measurement Specialties mediatek MediaTek Inc. |