Document support for AN7583 PCIe PHY used to make the Gen3 PCIe port
work. Add the required register to configure the PCIe PHY and provide an
example for it.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
.../phy/airoha,an7583-pcie-gen3-phy.yaml | 65 +++++++++++++++++++
1 file changed, 65 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/airoha,an7583-pcie-gen3-phy.yaml
diff --git a/Documentation/devicetree/bindings/phy/airoha,an7583-pcie-gen3-phy.yaml b/Documentation/devicetree/bindings/phy/airoha,an7583-pcie-gen3-phy.yaml
new file mode 100644
index 000000000000..07bb20152c0a
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/airoha,an7583-pcie-gen3-phy.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/airoha,an7583-pcie-gen3-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Airoha AN7583 PCI-Express PHY
+
+maintainers:
+ - Christian Marangi <ansuelsmth@gmail.com>
+
+description:
+ The PCIe PHY supports physical layer functionality for PCIe Gen2/Gen3 port.
+
+properties:
+ compatible:
+ const: airoha,an7583-pcie-gen3-phy
+
+ reg:
+ items:
+ - description: PCIE G3 analog base address
+ - description: PCIE G3 PMA base address
+ - description: PCIE detection time base address
+ - description: PCIE Rx AEQ base address
+
+ reg-names:
+ items:
+ - const: g3-ana
+ - const: g3-pma
+ - const: xr-dtime
+ - const: rx-aeq
+
+ phys:
+ items:
+ - description: phandle to QPHY phy for Gen2 support
+
+ "#phy-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - phys
+ - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/phy/phy.h>
+
+ phy@1fc7f000 {
+ compatible = "airoha,an7583-pcie-gen3-phy";
+ reg = <0x1fc7f000 0xfff>,
+ <0x1fc7e000 0xfff>,
+ <0x1fc30044 0x4>,
+ <0x1fc35030 0x4>;
+ reg-names = "g3-ana", "g3-pma",
+ "xr-dtime", "rx-aeq";
+
+ phys = <&pcie1_phy PHY_TYPE_PCIE>;
+
+ #phy-cells = <0>;
+ };--
2.53.0