Document support for Airoha AN8855 Switch SoC. This SoC expose various peripherals like an Ethernet Switch, a NVMEM provider and Ethernet PHYs. It does also support i2c and timers but those are not currently supported/used. Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx> --- .../bindings/mfd/airoha,an8855.yaml | 182 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 183 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/airoha,an8855.yaml diff --git a/Documentation/devicetree/bindings/mfd/airoha,an8855.yaml b/Documentation/devicetree/bindings/mfd/airoha,an8855.yaml new file mode 100644 index 000000000000..a59a23056b3a --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/airoha,an8855.yaml @@ -0,0 +1,182 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/airoha,an8855.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Airoha AN8855 Switch SoC + +maintainers: + - Christian Marangi <ansuelsmth@xxxxxxxxx> + +description: > + Airoha AN8855 Switch is a SoC that expose various peripherals like an + Ethernet Switch, a NVMEM provider and Ethernet PHYs. + + It does also support i2c and timers but those are not currently + supported/used. + +properties: + compatible: + const: airoha,an8855 + + reg: + maxItems: 1 + + reset-gpios: true + + efuse: + type: object + $ref: /schemas/nvmem/airoha,an8855-efuse.yaml + description: + EFUSE exposed by the Airoha AN8855 Switch. This child node definition + should follow the bindings specified in + Documentation/devicetree/bindings/nvmem/airoha,an8855-efuse.yaml + + ethernet-switch: + type: object + $ref: /schemas/net/dsa/airoha,an8855-switch.yaml + description: + Switch exposed by the Airoha AN8855 Switch. This child node definition + should follow the bindings specified in + Documentation/devicetree/bindings/net/dsa/airoha,an8855-switch.yaml + + mdio: + type: object + $ref: /schemas/net/airoha,an8855-mdio.yaml + description: + MDIO exposed by the Airoha AN8855 Switch. This child node definition + should follow the bindings specified in + Documentation/devicetree/bindings/net/airoha,an8855-mdio.yaml + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + mdio { + #address-cells = <1>; + #size-cells = <0>; + + soc@1 { + compatible = "airoha,an8855"; + reg = <1>; + + reset-gpios = <&pio 39 0>; + + efuse { + compatible = "airoha,an8855-efuse"; + + #nvmem-cell-cells = <0>; + + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; + + shift_sel_port0_tx_a: shift-sel-port0-tx-a@c { + reg = <0xc 0x4>; + }; + + shift_sel_port0_tx_b: shift-sel-port0-tx-b@10 { + reg = <0x10 0x4>; + }; + + shift_sel_port0_tx_c: shift-sel-port0-tx-c@14 { + reg = <0x14 0x4>; + }; + + shift_sel_port0_tx_d: shift-sel-port0-tx-d@18 { + reg = <0x18 0x4>; + }; + + shift_sel_port1_tx_a: shift-sel-port1-tx-a@1c { + reg = <0x1c 0x4>; + }; + + shift_sel_port1_tx_b: shift-sel-port1-tx-b@20 { + reg = <0x20 0x4>; + }; + + shift_sel_port1_tx_c: shift-sel-port1-tx-c@24 { + reg = <0x24 0x4>; + }; + + shift_sel_port1_tx_d: shift-sel-port1-tx-d@28 { + reg = <0x28 0x4>; + }; + }; + }; + + ethernet-switch { + compatible = "airoha,an8855-switch"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + label = "lan1"; + phy-mode = "internal"; + phy-handle = <&internal_phy1>; + }; + + port@1 { + reg = <1>; + label = "lan2"; + phy-mode = "internal"; + phy-handle = <&internal_phy2>; + }; + + port@5 { + reg = <5>; + label = "cpu"; + ethernet = <&gmac0>; + phy-mode = "2500base-x"; + + fixed-link { + speed = <2500>; + full-duplex; + pause; + }; + }; + }; + }; + + mdio { + compatible = "airoha,an8855-mdio"; + #address-cells = <1>; + #size-cells = <0>; + + internal_phy1: phy@1 { + compatible = "ethernet-phy-idc0ff.0410", + "ethernet-phy-ieee802.3-c45"; + reg = <1>; + + nvmem-cells = <&shift_sel_port0_tx_a>, + <&shift_sel_port0_tx_b>, + <&shift_sel_port0_tx_c>, + <&shift_sel_port0_tx_d>; + nvmem-cell-names = "tx_a", "tx_b", "tx_c", "tx_d"; + }; + + internal_phy2: phy@2 { + compatible = "ethernet-phy-idc0ff.0410", + "ethernet-phy-ieee802.3-c45"; + reg = <2>; + + nvmem-cells = <&shift_sel_port1_tx_a>, + <&shift_sel_port1_tx_b>, + <&shift_sel_port1_tx_c>, + <&shift_sel_port1_tx_d>; + nvmem-cell-names = "tx_a", "tx_b", "tx_c", "tx_d"; + }; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 45f4bb8deb0d..65709e47adc7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -725,6 +725,7 @@ L: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx (moderated for non-subscribers) L: linux-mediatek@xxxxxxxxxxxxxxxxxxx (moderated for non-subscribers) L: netdev@xxxxxxxxxxxxxxx S: Maintained +F: Documentation/devicetree/bindings/mfd/airoha,an8855.yaml F: Documentation/devicetree/bindings/net/airoha,an8855-mdio.yaml F: Documentation/devicetree/bindings/net/airoha,an8855-phy.yaml F: Documentation/devicetree/bindings/net/dsa/airoha,an8855-switch.yaml -- 2.48.1
