diff options
Diffstat (limited to 'Documentation/devicetree/bindings')
6 files changed, 315 insertions, 53 deletions
diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt deleted file mode 100644 index d6796ef54ea1..000000000000 --- a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt +++ /dev/null @@ -1,43 +0,0 @@ -HiSilicon Hip05 and Hip06 PCIe host bridge DT description - -HiSilicon PCIe host controller is based on the Synopsys DesignWare PCI core. -It shares common functions with the PCIe DesignWare core driver and inherits -common properties defined in -Documentation/devicetree/bindings/pci/designware-pcie.txt. - -Additional properties are described here: - -Required properties -- compatible: Should contain "hisilicon,hip05-pcie" or "hisilicon,hip06-pcie". -- reg: Should contain rc_dbi, config registers location and length. -- reg-names: Must include the following entries: - "rc_dbi": controller configuration registers; - "config": PCIe configuration space registers. -- msi-parent: Should be its_pcie which is an ITS receiving MSI interrupts. -- port-id: Should be 0, 1, 2 or 3. - -Optional properties: -- status: Either "ok" or "disabled". -- dma-coherent: Present if DMA operations are coherent. - -Hip05 Example (note that Hip06 is the same except compatible): - pcie@b0080000 { - compatible = "hisilicon,hip05-pcie", "snps,dw-pcie"; - reg = <0 0xb0080000 0 0x10000>, <0x220 0x00000000 0 0x2000>; - reg-names = "rc_dbi", "config"; - bus-range = <0 15>; - msi-parent = <&its_pcie>; - #address-cells = <3>; - #size-cells = <2>; - device_type = "pci"; - dma-coherent; - ranges = <0x82000000 0 0x00000000 0x220 0x00000000 0 0x10000000>; - num-lanes = <8>; - port-id = <1>; - #interrupt-cells = <1>; - interrupt-map-mask = <0xf800 0 0 7>; - interrupt-map = <0x0 0 0 1 &mbigen_pcie 1 10 - 0x0 0 0 2 &mbigen_pcie 2 11 - 0x0 0 0 3 &mbigen_pcie 3 12 - 0x0 0 0 4 &mbigen_pcie 4 13>; - }; diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml new file mode 100644 index 000000000000..e7b1f9892da4 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml @@ -0,0 +1,181 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/mediatek-pcie-gen3.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Gen3 PCIe controller on MediaTek SoCs + +maintainers: + - Jianjun Wang <jianjun.wang@mediatek.com> + +description: |+ + PCIe Gen3 MAC controller for MediaTek SoCs, it supports Gen3 speed + and compatible with Gen2, Gen1 speed. + + This PCIe controller supports up to 256 MSI vectors, the MSI hardware + block diagram is as follows: + + +-----+ + | GIC | + +-----+ + ^ + | + port->irq + | + +-+-+-+-+-+-+-+-+ + |0|1|2|3|4|5|6|7| (PCIe intc) + +-+-+-+-+-+-+-+-+ + ^ ^ ^ + | | ... | + +-------+ +------+ +-----------+ + | | | + +-+-+---+--+--+ +-+-+---+--+--+ +-+-+---+--+--+ + |0|1|...|30|31| |0|1|...|30|31| |0|1|...|30|31| (MSI sets) + +-+-+---+--+--+ +-+-+---+--+--+ +-+-+---+--+--+ + ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ + | | | | | | | | | | | | (MSI vectors) + | | | | | | | | | | | | + + (MSI SET0) (MSI SET1) ... (MSI SET7) + + With 256 MSI vectors supported, the MSI vectors are composed of 8 sets, + each set has its own address for MSI message, and supports 32 MSI vectors + to generate interrupt. + +allOf: + - $ref: /schemas/pci/pci-bus.yaml# + +properties: + compatible: + const: mediatek,mt8192-pcie + + reg: + maxItems: 1 + + reg-names: + items: + - const: pcie-mac + + interrupts: + maxItems: 1 + + ranges: + minItems: 1 + maxItems: 8 + + resets: + minItems: 1 + maxItems: 2 + + reset-names: + minItems: 1 + maxItems: 2 + items: + - const: phy + - const: mac + + clocks: + maxItems: 6 + + clock-names: + items: + - const: pl_250m + - const: tl_26m + - const: tl_96m + - const: tl_32k + - const: peri_26m + - const: top_133m + + assigned-clocks: + maxItems: 1 + + assigned-clock-parents: + maxItems: 1 + + phys: + maxItems: 1 + + '#interrupt-cells': + const: 1 + + interrupt-controller: + description: Interrupt controller node for handling legacy PCI interrupts. + type: object + properties: + '#address-cells': + const: 0 + '#interrupt-cells': + const: 1 + interrupt-controller: true + + required: + - '#address-cells' + - '#interrupt-cells' + - interrupt-controller + + additionalProperties: false + +required: + - compatible + - reg + - reg-names + - interrupts + - ranges + - clocks + - '#interrupt-cells' + - interrupt-controller + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/interrupt-controller/irq.h> + + bus { + #address-cells = <2>; + #size-cells = <2>; + + pcie: pcie@11230000 { + compatible = "mediatek,mt8192-pcie"; + device_type = "pci"; + #address-cells = <3>; + #size-cells = <2>; + reg = <0x00 0x11230000 0x00 0x4000>; + reg-names = "pcie-mac"; + interrupts = <GIC_SPI 251 IRQ_TYPE_LEVEL_HIGH 0>; + bus-range = <0x00 0xff>; + ranges = <0x82000000 0x00 0x12000000 0x00 + 0x12000000 0x00 0x1000000>; + clocks = <&infracfg 44>, + <&infracfg 40>, + <&infracfg 43>, + <&infracfg 97>, + <&infracfg 99>, + <&infracfg 111>; + clock-names = "pl_250m", "tl_26m", "tl_96m", + "tl_32k", "peri_26m", "top_133m"; + assigned-clocks = <&topckgen 50>; + assigned-clock-parents = <&topckgen 91>; + + phys = <&pciephy>; + phy-names = "pcie-phy"; + + resets = <&infracfg_rst 2>, + <&infracfg_rst 3>; + reset-names = "phy", "mac"; + + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0x7>; + interrupt-map = <0 0 0 1 &pcie_intc 0>, + <0 0 0 2 &pcie_intc 1>, + <0 0 0 3 &pcie_intc 2>, + <0 0 0 4 &pcie_intc 3>; + pcie_intc: interrupt-controller { + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-controller; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/pci/sifive,fu740-pcie.yaml b/Documentation/devicetree/bindings/pci/sifive,fu740-pcie.yaml new file mode 100644 index 000000000000..b03cbb9b6602 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/sifive,fu740-pcie.yaml @@ -0,0 +1,113 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/sifive,fu740-pcie.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SiFive FU740 PCIe host controller + +description: |+ + SiFive FU740 PCIe host controller is based on the Synopsys DesignWare + PCI core. It shares common features with the PCIe DesignWare core and + inherits common properties defined in + Documentation/devicetree/bindings/pci/designware-pcie.txt. + +maintainers: + - Paul Walmsley <paul.walmsley@sifive.com> + - Greentime Hu <greentime.hu@sifive.com> + +allOf: + - $ref: /schemas/pci/pci-bus.yaml# + +properties: + compatible: + const: sifive,fu740-pcie + + reg: + maxItems: 3 + + reg-names: + items: + - const: dbi + - const: config + - const: mgmt + + num-lanes: + const: 8 + + msi-parent: true + + interrupt-names: + items: + - const: msi + - const: inta + - const: intb + - const: intc + - const: intd + + resets: + description: A phandle to the PCIe power up reset line. + maxItems: 1 + + pwren-gpios: + description: Should specify the GPIO for controlling the PCI bus device power on. + maxItems: 1 + + reset-gpios: + maxItems: 1 + +required: + - dma-coherent + - num-lanes + - interrupts + - interrupt-names + - interrupt-parent + - interrupt-map-mask + - interrupt-map + - clock-names + - clocks + - resets + - pwren-gpios + - reset-gpios + +unevaluatedProperties: false + +examples: + - | + bus { + #address-cells = <2>; + #size-cells = <2>; + #include <dt-bindings/clock/sifive-fu740-prci.h> + + pcie@e00000000 { + compatible = "sifive,fu740-pcie"; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + reg = <0xe 0x00000000 0x0 0x80000000>, + <0xd 0xf0000000 0x0 0x10000000>, + <0x0 0x100d0000 0x0 0x1000>; + reg-names = "dbi", "config", "mgmt"; + device_type = "pci"; + dma-coherent; + bus-range = <0x0 0xff>; + ranges = <0x81000000 0x0 0x60080000 0x0 0x60080000 0x0 0x10000>, /* I/O */ + <0x82000000 0x0 0x60090000 0x0 0x60090000 0x0 0xff70000>, /* mem */ + <0x82000000 0x0 0x70000000 0x0 0x70000000 0x0 0x1000000>, /* mem */ + <0xc3000000 0x20 0x00000000 0x20 0x00000000 0x20 0x00000000>; /* mem prefetchable */ + num-lanes = <0x8>; + interrupts = <56>, <57>, <58>, <59>, <60>, <61>, <62>, <63>, <64>; + interrupt-names = "msi", "inta", "intb", "intc", "intd"; + interrupt-parent = <&plic0>; + interrupt-map-mask = <0x0 0x0 0x0 0x7>; + interrupt-map = <0x0 0x0 0x0 0x1 &plic0 57>, + <0x0 0x0 0x0 0x2 &plic0 58>, + <0x0 0x0 0x0 0x3 &plic0 59>, + <0x0 0x0 0x0 0x4 &plic0 60>; + clock-names = "pcie_aux"; + clocks = <&prci PRCI_CLK_PCIE_AUX>; + resets = <&prci 4>; + pwren-gpios = <&gpio 5 0>; + reset-gpios = <&gpio 8 0>; + }; + }; diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml index d06f0c4464c6..aed437dac363 100644 --- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml +++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml @@ -16,12 +16,14 @@ allOf: properties: compatible: oneOf: - - description: PCIe EP controller in J7200 + - const: ti,j721e-pcie-ep + - description: PCIe EP controller in AM64 items: - - const: ti,j7200-pcie-ep + - const: ti,am64-pcie-ep - const: ti,j721e-pcie-ep - - description: PCIe EP controller in J721E + - description: PCIe EP controller in J7200 items: + - const: ti,j7200-pcie-ep - const: ti,j721e-pcie-ep reg: @@ -66,7 +68,6 @@ required: - power-domains - clocks - clock-names - - dma-coherent - max-functions - phys - phy-names diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml index 0880a613ece6..cc900202df29 100644 --- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml +++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml @@ -16,12 +16,14 @@ allOf: properties: compatible: oneOf: - - description: PCIe controller in J7200 + - const: ti,j721e-pcie-host + - description: PCIe controller in AM64 items: - - const: ti,j7200-pcie-host + - const: ti,am64-pcie-host - const: ti,j721e-pcie-host - - description: PCIe controller in J721E + - description: PCIe controller in J7200 items: + - const: ti,j7200-pcie-host - const: ti,j721e-pcie-host reg: @@ -46,12 +48,17 @@ properties: maxItems: 1 clocks: - maxItems: 1 - description: clock-specifier to represent input to the PCIe + minItems: 1 + maxItems: 2 + description: |+ + clock-specifier to represent input to the PCIe for 1 item. + 2nd item if present represents reference clock to the connector. clock-names: + minItems: 1 items: - const: fck + - const: pcie_refclk vendor-id: const: 0x104c @@ -62,6 +69,8 @@ properties: - const: 0xb00d - items: - const: 0xb00f + - items: + - const: 0xb010 msi-map: true @@ -78,7 +87,6 @@ required: - vendor-id - device-id - msi-map - - dma-coherent - dma-ranges - ranges - reset-gpios diff --git a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt index 01bf7fdf4c19..2d677e90a7e2 100644 --- a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt +++ b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt @@ -33,6 +33,8 @@ Required properties: - #address-cells: specifies the number of cells needed to encode an address. The value must be 0. +Optional properties: +- dma-coherent: present if DMA operations are coherent Example: ++++++++ |