[net-next RFC PATCH v5 08/10] dt-bindings: net: pcs: Document support for Airoha Ethernet PCS

Christian Marangi
2026-05-05T18:27:42Z

Document support for Airoha Ethernet PCS for AN7581 SoC.

Airoha AN7581 SoC expose multiple Physical Coding Sublayer (PCS) for
the various Serdes port supporting different Media Independent Interface
(10BASE-R, USXGMII, 2500BASE-X, 1000BASE-X, SGMII).

This follow the new PCS provider with the use of #pcs-cells property.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
.../bindings/net/pcs/airoha,pcs.yaml | 112 ++++++++++++++++++
1 file changed, 112 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/pcs/airoha,pcs.yaml

diff --git a/Documentation/devicetree/bindings/net/pcs/airoha,pcs.yaml b/Documentation/devicetree/bindings/net/pcs/airoha,pcs.yaml
new file mode 100644
index 000000000000..8bcf7757c728
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/pcs/airoha,pcs.yaml
@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/pcs/airoha,pcs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Airoha Ethernet PCS and Serdes
+
+maintainers:
+ - Christian Marangi <ansuelsmth@gmail.com>
+
+description:
+ Airoha AN7581 SoC expose multiple Physical Coding Sublayer (PCS) for
+ the various Serdes port supporting different Media Independent Interface
+ (10BASE-R, USXGMII, 2500BASE-X, 1000BASE-X, SGMII).
+
+properties:
+ compatible:
+ enum:
+ - airoha,an7581-pcs-eth
+ - airoha,an7581-pcs-pon
+
+ reg:
+ items:
+ - description: XFI MAC reg
+ - description: HSGMII AN reg
+ - description: HSGMII PCS reg
+ - description: MULTI SGMII reg
+ - description: USXGMII reg
+ - description: HSGMII rate adaption reg
+ - description: XFI Analog register
+ - description: XFI PMA (Physical Medium Attachment) register
+
+ reg-names:
+ items:
+ - const: xfi_mac
+ - const: hsgmii_an
+ - const: hsgmii_pcs
+ - const: multi_sgmii
+ - const: usxgmii
+ - const: hsgmii_rate_adp
+ - const: xfi_ana
+ - const: xfi_pma
+
+ resets:
+ items:
+ - description: MAC reset
+ - description: PHY reset
+
+ reset-names:
+ items:
+ - const: mac
+ - const: phy
+
+ "#pcs-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+ - "#pcs-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/reset/airoha,en7581-reset.h>
+
+ pcs@1fa08000 {
+ compatible = "airoha,an7581-pcs-pon";
+ reg = <0x1fa08000 0x1000>,
+ <0x1fa80000 0x60>,
+ <0x1fa80a00 0x164>,
+ <0x1fa84000 0x450>,
+ <0x1fa85900 0x338>,
+ <0x1fa86000 0x300>,
+ <0x1fa8a000 0x1000>,
+ <0x1fa8b000 0x1000>;
+ reg-names = "xfi_mac", "hsgmii_an", "hsgmii_pcs",
+ "multi_sgmii", "usxgmii",
+ "hsgmii_rate_adp", "xfi_ana", "xfi_pma";
+
+ resets = <&scuclk EN7581_XPON_MAC_RST>,
+ <&scuclk EN7581_XPON_PHY_RST>;
+ reset-names = "mac", "phy";
+
+ #pcs-cells = <0>;
+ };
+
+ pcs@1fa09000 {
+ compatible = "airoha,an7581-pcs-eth";
+ reg = <0x1fa09000 0x1000>,
+ <0x1fa70000 0x60>,
+ <0x1fa70a00 0x164>,
+ <0x1fa74000 0x450>,
+ <0x1fa75900 0x338>,
+ <0x1fa76000 0x300>,
+ <0x1fa7a000 0x1000>,
+ <0x1fa7b000 0x1000>;
+ reg-names = "xfi_mac", "hsgmii_an", "hsgmii_pcs",
+ "multi_sgmii", "usxgmii",
+ "hsgmii_rate_adp", "xfi_ana", "xfi_pma";
+
+ resets = <&scuclk EN7581_XSI_MAC_RST>,
+ <&scuclk EN7581_XSI_PHY_RST>;
+ reset-names = "mac", "phy";
+
+ #pcs-cells = <0>;
+ };
--
2.53.0