diff options
Diffstat (limited to 'Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml | 155 |
1 files changed, 112 insertions, 43 deletions
diff --git a/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml b/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml index c779a3c7d87a..dfb31314face 100644 --- a/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml +++ b/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml @@ -1,14 +1,16 @@ # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2 --- -$id: "http://devicetree.org/schemas/phy/phy-cadence-torrent.yaml#" -$schema: "http://devicetree.org/meta-schemas/core.yaml#" +$id: http://devicetree.org/schemas/phy/phy-cadence-torrent.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# -title: Cadence Torrent SD0801 PHY binding for DisplayPort +title: Cadence Torrent SD0801 PHY description: This binding describes the Cadence SD0801 PHY (also known as Torrent PHY) - hardware included with the Cadence MHDP DisplayPort controller. + hardware included with the Cadence MHDP DisplayPort controller. Torrent + PHY also supports multilink multiprotocol combinations including protocols + such as PCIe, USB, SGMII, QSGMII etc. maintainers: - Swapnil Jakhade <sjakhade@cadence.com> @@ -26,36 +28,48 @@ properties: '#size-cells': const: 0 + '#clock-cells': + const: 1 + clocks: - maxItems: 1 + minItems: 1 + maxItems: 2 description: - PHY reference clock. Must contain an entry in clock-names. + PHY reference clock for 1 item. Must contain an entry in clock-names. + Optional Parent to enable output reference clock. clock-names: - const: refclk + minItems: 1 + items: + - const: refclk + - const: phy_en_refclk reg: minItems: 1 - maxItems: 2 items: - description: Offset of the Torrent PHY configuration registers. - description: Offset of the DPTX PHY configuration registers. reg-names: minItems: 1 - maxItems: 2 items: - const: torrent_phy - const: dptx_phy resets: - maxItems: 1 - description: - Torrent PHY reset. - See Documentation/devicetree/bindings/reset/reset.txt + minItems: 1 + items: + - description: Torrent PHY reset. + - description: Torrent APB reset. This is optional. + + reset-names: + minItems: 1 + items: + - const: torrent_reset + - const: torrent_apb patternProperties: - '^phy@[0-7]+$': + '^phy@[0-3]$': type: object description: Each group of PHY lanes with a single master lane should be represented as a sub-node. @@ -63,6 +77,8 @@ patternProperties: reg: description: The master lane number. This is the lowest numbered lane in the lane group. + minimum: 0 + maximum: 3 resets: minItems: 1 @@ -77,24 +93,31 @@ patternProperties: description: Specifies the type of PHY for which the group of PHY lanes is used. Refer include/dt-bindings/phy/phy.h. Constants from the header should be used. - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32 - - enum: [1, 2, 3, 4, 5, 6] + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 1 + maximum: 9 cdns,num-lanes: description: - Number of DisplayPort lanes. - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32 - - enum: [1, 2, 4] + Number of lanes. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 2, 3, 4] default: 4 + cdns,ssc-mode: + description: + Specifies the Spread Spectrum Clocking mode used. It can be NO_SSC, + EXTERNAL_SSC or INTERNAL_SSC. + Refer include/dt-bindings/phy/phy-cadence.h for the constants to be used. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2] + default: 0 + cdns,max-bit-rate: description: Maximum DisplayPort link bit rate to use, in Mbps - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32 - - enum: [2160, 2430, 2700, 3240, 4320, 5400, 8100] + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [2160, 2430, 2700, 3240, 4320, 5400, 8100] default: 8100 required: @@ -102,6 +125,7 @@ patternProperties: - resets - "#phy-cells" - cdns,phy-type + - cdns,num-lanes additionalProperties: false @@ -114,30 +138,75 @@ required: - reg - reg-names - resets + - reset-names additionalProperties: false examples: - | #include <dt-bindings/phy/phy.h> - torrent_phy: torrent-phy@f0fb500000 { - compatible = "cdns,torrent-phy"; - reg = <0xf0 0xfb500000 0x0 0x00100000>, - <0xf0 0xfb030a00 0x0 0x00000040>; - reg-names = "torrent_phy", "dptx_phy"; - resets = <&phyrst 0>; - clocks = <&ref_clk>; - clock-names = "refclk"; - #address-cells = <1>; - #size-cells = <0>; - torrent_phy_dp: phy@0 { - reg = <0>; - resets = <&phyrst 1>, <&phyrst 2>, - <&phyrst 3>, <&phyrst 4>; - #phy-cells = <0>; - cdns,phy-type = <PHY_TYPE_DP>; - cdns,num-lanes = <4>; - cdns,max-bit-rate = <8100>; - }; + + bus { + #address-cells = <2>; + #size-cells = <2>; + + torrent-phy@f0fb500000 { + compatible = "cdns,torrent-phy"; + reg = <0xf0 0xfb500000 0x0 0x00100000>, + <0xf0 0xfb030a00 0x0 0x00000040>; + reg-names = "torrent_phy", "dptx_phy"; + resets = <&phyrst 0>; + reset-names = "torrent_reset"; + clocks = <&ref_clk>; + clock-names = "refclk"; + #address-cells = <1>; + #size-cells = <0>; + phy@0 { + reg = <0>; + resets = <&phyrst 1>, <&phyrst 2>, + <&phyrst 3>, <&phyrst 4>; + #phy-cells = <0>; + cdns,phy-type = <PHY_TYPE_DP>; + cdns,num-lanes = <4>; + cdns,max-bit-rate = <8100>; + }; + }; + }; + - | + #include <dt-bindings/phy/phy.h> + #include <dt-bindings/phy/phy-cadence.h> + + bus { + #address-cells = <2>; + #size-cells = <2>; + + torrent-phy@f0fb500000 { + compatible = "cdns,torrent-phy"; + reg = <0xf0 0xfb500000 0x0 0x00100000>; + reg-names = "torrent_phy"; + resets = <&phyrst 0>, <&phyrst 1>; + reset-names = "torrent_reset", "torrent_apb"; + clocks = <&ref_clk>; + clock-names = "refclk"; + #address-cells = <1>; + #size-cells = <0>; + phy@0 { + reg = <0>; + resets = <&phyrst 2>, <&phyrst 3>; + #phy-cells = <0>; + cdns,phy-type = <PHY_TYPE_PCIE>; + cdns,num-lanes = <2>; + cdns,ssc-mode = <CDNS_SERDES_NO_SSC>; + }; + + phy@2 { + reg = <2>; + resets = <&phyrst 4>; + #phy-cells = <0>; + cdns,phy-type = <PHY_TYPE_SGMII>; + cdns,num-lanes = <1>; + cdns,ssc-mode = <CDNS_SERDES_NO_SSC>; + }; + }; }; ... |