From: "J. Neuschäfer" <j.ne@xxxxxxxxxx> Formalise the binding for the PCI controllers in the Freescale MPC8xxx chip family. Information about PCI-X-specific properties was taken from fsl,pci.txt. The examples were taken from mpc8315erdb.dts and xpedite5200_xmon.dts. Signed-off-by: J. Neuschäfer <j.ne@xxxxxxxxxx> --- V2: - merge fsl,pci.txt into fsl,mpc8xxx-pci.yaml - regroup compatible strings, list single-item values in one enum - trim subject line (remove "binding") - fix property order to comply with dts coding style --- .../devicetree/bindings/pci/fsl,mpc8xxx-pci.yaml | 115 +++++++++++++++++++++ Documentation/devicetree/bindings/pci/fsl,pci.txt | 27 ----- 2 files changed, 115 insertions(+), 27 deletions(-) diff --git a/Documentation/devicetree/bindings/pci/fsl,mpc8xxx-pci.yaml b/Documentation/devicetree/bindings/pci/fsl,mpc8xxx-pci.yaml new file mode 100644 index 0000000000000000000000000000000000000000..57c5503cec47e6e90ed2b09835bfad10309db927 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/fsl,mpc8xxx-pci.yaml @@ -0,0 +1,115 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- + +$id: http://devicetree.org/schemas/pci/fsl,mpc8xxx-pci.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale MPC83xx PCI/PCI-X/PCIe controllers + +description: | + Binding for the PCI/PCI-X/PCIe host bridges on MPC8xxx SoCs. + See also: Documentation/devicetree/bindings/pci/fsl,pci.txt + +maintainers: + - J. Neuschäfer <j.neuschaefer@xxxxxxx> + +allOf: + - $ref: /schemas/pci/pci-host-bridge.yaml# + +properties: + compatible: + oneOf: + - enum: + - fsl,mpc8314-pcie + - fsl,mpc8349-pci + - fsl,mpc8540-pci + - fsl,mpc8548-pcie + - fsl,mpc8641-pcie + - items: + - enum: + - fsl,mpc8308-pcie + - fsl,mpc8315-pcie + - fsl,mpc8377-pcie + - fsl,mpc8378-pcie + - const: fsl,mpc8314-pcie + - items: + - const: fsl,mpc8360-pci + - const: fsl,mpc8349-pci + - items: + - const: fsl,mpc8540-pcix + - const: fsl,mpc8540-pci + + reg: + minItems: 1 + items: + - description: internal registers + - description: config space access registers + + clock-frequency: true + + interrupts: + items: + - description: Consolidated PCI interrupt + + fsl,pci-agent-force-enum: + type: boolean + description: + Typically any Freescale PCI-X bridge hardware strapped into Agent mode is + prevented from enumerating the bus. The PrPMC form-factor requires all + mezzanines to be PCI-X Agents, but one per system may still enumerate the + bus. + + This property allows a PCI-X bridge to be used for bus enumeration + despite being strapped into Agent mode. + +required: + - reg + - compatible + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + pcie@e0009000 { + compatible = "fsl,mpc8315-pcie", "fsl,mpc8314-pcie"; + reg = <0xe0009000 0x00001000>; + ranges = <0x02000000 0 0xa0000000 0xa0000000 0 0x10000000 + 0x01000000 0 0x00000000 0xb1000000 0 0x00800000>; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + device_type = "pci"; + bus-range = <0 255>; + interrupt-map-mask = <0xf800 0 0 7>; + interrupt-map = <0 0 0 1 &ipic 1 IRQ_TYPE_LEVEL_LOW + 0 0 0 2 &ipic 1 IRQ_TYPE_LEVEL_LOW + 0 0 0 3 &ipic 1 IRQ_TYPE_LEVEL_LOW + 0 0 0 4 &ipic 1 IRQ_TYPE_LEVEL_LOW>; + clock-frequency = <0>; + }; + + - | + pci@ef008000 { + compatible = "fsl,mpc8540-pcix", "fsl,mpc8540-pci"; + reg = <0xef008000 0x1000>; + ranges = <0x02000000 0 0x80000000 0x80000000 0 0x20000000 + 0x01000000 0 0x00000000 0xd0000000 0 0x01000000>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + device_type = "pci"; + clock-frequency = <33333333>; + interrupt-map-mask = <0xf800 0x0 0x0 0x7>; + interrupt-map = </* IDSEL */ + 0xe000 0 0 1 &mpic 2 1 + 0xe000 0 0 2 &mpic 3 1>; + interrupts-extended = <&mpic 24 2>; + bus-range = <0 0>; + fsl,pci-agent-force-enum; + }; + + +... diff --git a/Documentation/devicetree/bindings/pci/fsl,pci.txt b/Documentation/devicetree/bindings/pci/fsl,pci.txt deleted file mode 100644 index d8ac4a768e7e65b465f83308cc918ec471309dcf..0000000000000000000000000000000000000000 --- a/Documentation/devicetree/bindings/pci/fsl,pci.txt +++ /dev/null @@ -1,27 +0,0 @@ -* Bus Enumeration by Freescale PCI-X Agent - -Typically any Freescale PCI-X bridge hardware strapped into Agent mode -is prevented from enumerating the bus. The PrPMC form-factor requires -all mezzanines to be PCI-X Agents, but one per system may still -enumerate the bus. - -The property defined below will allow a PCI-X bridge to be used for bus -enumeration despite being strapped into Agent mode. - -Required properties: -- fsl,pci-agent-force-enum : There is no value associated with this - property. The property itself is treated as a boolean. - -Example: - - /* PCI-X bridge known to be PrPMC Monarch */ - pci0: pci@ef008000 { - fsl,pci-agent-force-enum; - #interrupt-cells = <1>; - #size-cells = <2>; - #address-cells = <3>; - compatible = "fsl,mpc8540-pcix", "fsl,mpc8540-pci"; - device_type = "pci"; - ... - ... - }; -- 2.48.0.rc1.219.gb6b6757d772
