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@gmail.com>
---
.../bindings/mfd/airoha,an8855.yaml | 173 ++++++++++++++++++
1 file changed, 173 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..647d6d4c4c6f
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/airoha,an8855.yaml
@@ -0,0 +1,173 @@
+# 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@gmail.com>
+
+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 SoC
+
+ ethernet-switch:
+ type: object
+ $ref: /schemas/net/dsa/airoha,an8855-switch.yaml
+ description: Switch exposed by the Airoha AN8855 SoC
+
+ mdio:
+ $ref: /schemas/net/mdio.yaml#
+ description: MDIO exposed by the Airoha AN8855 SoC
+
+required:
+ - compatible
+ - reg
+ - mdio
+ - ethernet-switch
+
+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 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ internal_phy1: ethernet-phy@1 {
+ compatible = "ethernet-phy-idc0ff.0410",
+ "ethernet-phy-ieee802.3-c22";
+ 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: ethernet-phy@2 {
+ compatible = "ethernet-phy-idc0ff.0410",
+ "ethernet-phy-ieee802.3-c22";
+ 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";
+ };
+ };
+ };
+ };
--
2.51.0
base-commit: 04b74f665961599e807b24af28099a29d691b18c
On Thu, 11 Sep 2025 15:39:18 +0200, Christian Marangi wrote:
> 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@gmail.com>
> ---
> .../bindings/mfd/airoha,an8855.yaml | 173 ++++++++++++++++++
> 1 file changed, 173 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/airoha,an8855.yaml
>
My bot found errors running 'make dt_binding_check' on your patch:
yamllint warnings/errors:
dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/airoha,an8855.yaml:
Error in referenced schema matching $id: http://devicetree.org/schemas/nvmem/airoha,an8855-efuse.yaml
Tried these paths (check schema $id if path is wrong):
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/nvmem/airoha,an8855-efuse.yaml
/usr/local/lib/python3.13/dist-packages/dtschema/schemas/nvmem/airoha,an8855-efuse.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/airoha,an8855.example.dtb: soc@1 (airoha,an8855): 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@c': {'reg': [[12, 4]], 'phandle': 3}, 'shift-sel-port0-tx-b@10': {'reg': [[16, 4]], 'phandle': 4}, 'shift-sel-port0-tx-c@14': {'reg': [[20, 4]], 'phandle': 5}, 'shift-sel-port0-tx-d@18': {'reg': [[24, 4]], 'phandle': 6}, 'shift-sel-port1-tx-a@1c': {'reg': [[28, 4]], 'phandle': 7}, 'shift-sel-port1-tx-b@20': {'reg': [[32, 4]], 'phandle': 8}, 'shift-sel-port1-tx-c@24': {'reg': [[36, 4]], 'phandle': 9}, 'shift-sel-port1-tx-d@28': {'reg': [[40, 4]], 'phandle': 10}}} should not be valid under {'description': "Can't find referenced schema: http://devicetree.org/schemas/nvmem/airoha,an8855-efuse.yaml#"}
from schema $id: http://devicetree.org/schemas/mfd/airoha,an8855.yaml#
Documentation/devicetree/bindings/mfd/airoha,an8855.example.dtb: /example-0/mdio/soc@1/efuse: failed to match any schema with compatible: ['airoha,an8855-efuse']
doc reference errors (make refcheckdocs):
See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250911133929.30874-4-ansuelsmth@gmail.com
The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.
If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:
pip3 install dtschema --upgrade
Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
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