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dt-bindings: phy: Convert Broadcom SATA PHY to YAML
Update the Broadcom SATA PHY Device Tree binding to a YAML format. Suggested-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20201204193532.1934108-1-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Florian Fainelli
Vinod Koul
parent
86e21677e7
commit
af89e57515
2 changed files with 148 additions and 61 deletions
148
Documentation/devicetree/bindings/phy/brcm,sata-phy.yaml
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148
Documentation/devicetree/bindings/phy/brcm,sata-phy.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/phy/brcm,sata-phy.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Broadcom SATA3 PHY
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maintainers:
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- Florian Fainelli <f.fainelli@gmail.com>
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properties:
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$nodename:
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pattern: "^sata[-|_]phy(@.*)?$"
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compatible:
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oneOf:
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- items:
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- enum:
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- brcm,bcm7216-sata-phy
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- brcm,bcm7425-sata-phy
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- brcm,bcm7445-sata-phy
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- brcm,bcm63138-sata-phy
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- const: brcm,phy-sata3
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- items:
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- const: brcm,iproc-nsp-sata-phy
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- items:
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- const: brcm,iproc-ns2-sata-phy
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- items:
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- const: brcm,iproc-sr-sata-phy
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reg:
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minItems: 1
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maxItems: 2
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reg-names:
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minItems: 1
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maxItems: 2
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items:
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- const: phy
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- const: phy-ctrl
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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patternProperties:
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"^sata-phy@[0-9]+$":
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type: object
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description: |
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Each port's PHY should be represented as a sub-node.
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properties:
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reg:
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description: The SATA PHY port number
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maxItems: 1
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"#phy-cells":
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const: 0
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"brcm,enable-ssc":
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$ref: /schemas/types.yaml#/definitions/flag
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description: |
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Use spread spectrum clocking (SSC) on this port
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This property is not applicable for "brcm,iproc-ns2-sata-phy",
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"brcm,iproc-nsp-sata-phy" and "brcm,iproc-sr-sata-phy".
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"brcm,rxaeq-mode":
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$ref: /schemas/types.yaml#/definitions/string
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description:
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String that indicates the desired RX equalizer mode.
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enum:
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- off
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- auto
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- manual
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"brcm,rxaeq-value":
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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When 'brcm,rxaeq-mode' is set to "manual", provides the RX
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equalizer value that should be used.
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minimum: 0
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maximum: 63
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"brcm,tx-amplitude-millivolt":
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description: |
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Transmit amplitude voltage in millivolt.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [400, 500, 600, 800]
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required:
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- reg
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- "#phy-cells"
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additionalProperties: false
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if:
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properties:
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compatible:
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items:
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const: brcm,iproc-ns2-sata-phy
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then:
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properties:
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reg:
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maxItems: 2
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reg-names:
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items:
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- const: "phy"
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- const: "phy-ctrl"
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else:
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properties:
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reg:
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maxItems: 1
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reg-names:
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maxItems: 1
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items:
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- const: "phy"
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required:
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- compatible
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- "#address-cells"
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- "#size-cells"
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- reg
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- reg-names
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additionalProperties: false
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examples:
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- |
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sata_phy@f0458100 {
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compatible = "brcm,bcm7445-sata-phy", "brcm,phy-sata3";
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reg = <0xf0458100 0x1e00>;
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reg-names = "phy";
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#address-cells = <1>;
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#size-cells = <0>;
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sata-phy@0 {
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reg = <0>;
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#phy-cells = <0>;
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};
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sata-phy@1 {
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reg = <1>;
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#phy-cells = <0>;
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};
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};
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@ -1,61 +0,0 @@
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* Broadcom SATA3 PHY
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Required properties:
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- compatible: should be one or more of
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"brcm,bcm7216-sata-phy"
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"brcm,bcm7425-sata-phy"
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"brcm,bcm7445-sata-phy"
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"brcm,iproc-ns2-sata-phy"
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"brcm,iproc-nsp-sata-phy"
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"brcm,phy-sata3"
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"brcm,iproc-sr-sata-phy"
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"brcm,bcm63138-sata-phy"
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- address-cells: should be 1
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- size-cells: should be 0
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- reg: register ranges for the PHY PCB interface
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- reg-names: should be "phy" and "phy-ctrl"
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The "phy-ctrl" registers are only required for
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"brcm,iproc-ns2-sata-phy" and "brcm,iproc-sr-sata-phy".
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Sub-nodes:
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Each port's PHY should be represented as a sub-node.
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Sub-nodes required properties:
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- reg: the PHY number
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- phy-cells: generic PHY binding; must be 0
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Sub-nodes optional properties:
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- brcm,enable-ssc: use spread spectrum clocking (SSC) on this port
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This property is not applicable for "brcm,iproc-ns2-sata-phy",
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"brcm,iproc-nsp-sata-phy" and "brcm,iproc-sr-sata-phy".
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- brcm,rxaeq-mode: string that indicates the desired RX equalizer
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mode, possible values are:
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"off" (equivalent to not specifying the property)
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"auto"
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"manual" (brcm,rxaeq-value is used in that case)
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- brcm,rxaeq-value: when 'rxaeq-mode' is set to "manual", provides the RX
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equalizer value that should be used. Allowed range is 0..63.
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- brcm,tx-amplitude-millivolt: transmit amplitude voltage in millivolt.
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Possible values are 400, 500, 600 or 800 mV.
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Example
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sata-phy@f0458100 {
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compatible = "brcm,bcm7445-sata-phy", "brcm,phy-sata3";
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reg = <0xf0458100 0x1e00>, <0xf045804c 0x10>;
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reg-names = "phy";
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#address-cells = <1>;
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#size-cells = <0>;
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sata-phy@0 {
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reg = <0>;
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#phy-cells = <0>;
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};
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sata-phy@1 {
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reg = <1>;
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#phy-cells = <0>;
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};
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};
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