diff options
author | Kishon Vijay Abraham I <kishon@ti.com> | 2020-03-05 16:00:16 +0530 |
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committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-03-20 09:55:21 +0000 |
commit | 11be8af70d86c0a03706b329fb6f1a7329e3343a (patch) | |
tree | c875ef981e80f3609d1f788e9b0a93233f8bd081 | |
parent | 69501078fc605810d777a4bbc4df7d09c561998e (diff) |
dt-bindings: PCI: Convert PCIe Host/Endpoint in Cadence platform to DT schema
Include Cadence core DT schema and define the Cadence platform DT schema
for both Host and Endpoint mode. Note: The Cadence core DT schema could
be included for other platforms using Cadence PCIe core.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
5 files changed, 126 insertions, 94 deletions
diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt deleted file mode 100644 index 4a0475e2ba7e..000000000000 --- a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt +++ /dev/null @@ -1,27 +0,0 @@ -* Cadence PCIe endpoint controller - -Required properties: -- compatible: Should contain "cdns,cdns-pcie-ep" to identify the IP used. -- reg: Should contain the controller register base address and AXI interface - region base address respectively. -- reg-names: Must be "reg" and "mem" respectively. -- cdns,max-outbound-regions: Set to maximum number of outbound regions - -Optional properties: -- max-functions: Maximum number of functions that can be configured (default 1). -- phys: From PHY bindings: List of Generic PHY phandles. One per lane if more - than one in the list. If only one PHY listed it must manage all lanes. -- phy-names: List of names to identify the PHY. - -Example: - -pcie@fc000000 { - compatible = "cdns,cdns-pcie-ep"; - reg = <0x0 0xfc000000 0x0 0x01000000>, - <0x0 0x80000000 0x0 0x40000000>; - reg-names = "reg", "mem"; - cdns,max-outbound-regions = <16>; - max-functions = /bits/ 8 <8>; - phys = <&ep_phy0 &ep_phy1>; - phy-names = "pcie-lane0","pcie-lane1"; -}; diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml new file mode 100644 index 000000000000..2996f8d4777c --- /dev/null +++ b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/cdns,cdns-pcie-ep.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Cadence PCIe EP Controller + +maintainers: + - Tom Joseph <tjoseph@cadence.com> + +allOf: + - $ref: "cdns-pcie.yaml#" + - $ref: "pci-ep.yaml#" + +properties: + compatible: + const: cdns,cdns-pcie-ep + + reg: + maxItems: 2 + + reg-names: + items: + - const: reg + - const: mem + +required: + - reg + - reg-names + +examples: + - | + bus { + #address-cells = <2>; + #size-cells = <2>; + + pcie-ep@fc000000 { + compatible = "cdns,cdns-pcie-ep"; + reg = <0x0 0xfc000000 0x0 0x01000000>, + <0x0 0x80000000 0x0 0x40000000>; + reg-names = "reg", "mem"; + cdns,max-outbound-regions = <16>; + max-functions = /bits/ 8 <8>; + phys = <&pcie_phy0>; + phy-names = "pcie-phy"; + }; + }; +... diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.txt b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.txt deleted file mode 100644 index 91de69c713a9..000000000000 --- a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.txt +++ /dev/null @@ -1,66 +0,0 @@ -* Cadence PCIe host controller - -This PCIe controller inherits the base properties defined in -host-generic-pci.txt. - -Required properties: -- compatible: Should contain "cdns,cdns-pcie-host" to identify the IP used. -- reg: Should contain the controller register base address, PCIe configuration - window base address, and AXI interface region base address respectively. -- reg-names: Must be "reg", "cfg" and "mem" respectively. -- #address-cells: Set to <3> -- #size-cells: Set to <2> -- device_type: Set to "pci" -- ranges: Ranges for the PCI memory and I/O regions -- #interrupt-cells: Set to <1> -- interrupt-map-mask and interrupt-map: Standard PCI properties to define the - mapping of the PCIe interface to interrupt numbers. - -Optional properties: -- cdns,max-outbound-regions: Set to maximum number of outbound regions - (default 32) -- cdns,no-bar-match-nbits: Set into the no BAR match register to configure the - number of least significant bits kept during inbound (PCIe -> AXI) address - translations (default 32) -- vendor-id: The PCI vendor ID (16 bits, default is design dependent) -- device-id: The PCI device ID (16 bits, default is design dependent) -- phys: From PHY bindings: List of Generic PHY phandles. One per lane if more - than one in the list. If only one PHY listed it must manage all lanes. -- phy-names: List of names to identify the PHY. - -Example: - -pcie@fb000000 { - compatible = "cdns,cdns-pcie-host"; - device_type = "pci"; - #address-cells = <3>; - #size-cells = <2>; - bus-range = <0x0 0xff>; - linux,pci-domain = <0>; - cdns,max-outbound-regions = <16>; - cdns,no-bar-match-nbits = <32>; - vendor-id = /bits/ 16 <0x17cd>; - device-id = /bits/ 16 <0x0200>; - - reg = <0x0 0xfb000000 0x0 0x01000000>, - <0x0 0x41000000 0x0 0x00001000>, - <0x0 0x40000000 0x0 0x04000000>; - reg-names = "reg", "cfg", "mem"; - - ranges = <0x02000000 0x0 0x42000000 0x0 0x42000000 0x0 0x1000000>, - <0x01000000 0x0 0x43000000 0x0 0x43000000 0x0 0x0010000>; - - #interrupt-cells = <0x1>; - - interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0x0 0x0 14 0x1 - 0x0 0x0 0x0 0x2 &gic 0x0 0x0 0x0 15 0x1 - 0x0 0x0 0x0 0x3 &gic 0x0 0x0 0x0 16 0x1 - 0x0 0x0 0x0 0x4 &gic 0x0 0x0 0x0 17 0x1>; - - interrupt-map-mask = <0x0 0x0 0x0 0x7>; - - msi-parent = <&its_pci>; - - phys = <&pcie_phy0>; - phy-names = "pcie-phy"; -}; diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml new file mode 100644 index 000000000000..cabbe46ff578 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/cdns,cdns-pcie-host.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Cadence PCIe host controller + +maintainers: + - Tom Joseph <tjoseph@cadence.com> + +allOf: + - $ref: /schemas/pci/pci-bus.yaml# + - $ref: "cdns-pcie-host.yaml#" + +properties: + compatible: + const: cdns,cdns-pcie-host + + reg: + maxItems: 3 + + reg-names: + items: + - const: reg + - const: cfg + - const: mem + + msi-parent: true + +required: + - reg + - reg-names + +examples: + - | + bus { + #address-cells = <2>; + #size-cells = <2>; + + pcie@fb000000 { + compatible = "cdns,cdns-pcie-host"; + device_type = "pci"; + #address-cells = <3>; + #size-cells = <2>; + bus-range = <0x0 0xff>; + linux,pci-domain = <0>; + cdns,max-outbound-regions = <16>; + cdns,no-bar-match-nbits = <32>; + vendor-id = <0x17cd>; + device-id = <0x0200>; + + reg = <0x0 0xfb000000 0x0 0x01000000>, + <0x0 0x41000000 0x0 0x00001000>, + <0x0 0x40000000 0x0 0x04000000>; + reg-names = "reg", "cfg", "mem"; + + ranges = <0x02000000 0x0 0x42000000 0x0 0x42000000 0x0 0x1000000>, + <0x01000000 0x0 0x43000000 0x0 0x43000000 0x0 0x0010000>; + + #interrupt-cells = <0x1>; + + interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0x0 0x0 14 0x1>, + <0x0 0x0 0x0 0x2 &gic 0x0 0x0 0x0 15 0x1>, + <0x0 0x0 0x0 0x3 &gic 0x0 0x0 0x0 16 0x1>, + <0x0 0x0 0x0 0x4 &gic 0x0 0x0 0x0 17 0x1>; + + interrupt-map-mask = <0x0 0x0 0x0 0x7>; + + msi-parent = <&its_pci>; + + phys = <&pcie_phy0>; + phy-names = "pcie-phy"; + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index 38fe2f3f7b6f..e0402e001edd 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12739,7 +12739,7 @@ PCI DRIVER FOR CADENCE PCIE IP M: Tom Joseph <tjoseph@cadence.com> L: linux-pci@vger.kernel.org S: Maintained -F: Documentation/devicetree/bindings/pci/cdns,*.txt +F: Documentation/devicetree/bindings/pci/cdns,* F: drivers/pci/controller/pcie-cadence* PCI DRIVER FOR FREESCALE LAYERSCAPE |