[PATCH v2 net-next 2/6] dt-bindings: net: mediatek: add WED RX binding for MT7986 eth driver

Lorenzo Bianconi lorenzo at kernel.org
Sun Oct 23 11:28:06 PDT 2022 

Document the binding for the RX Wireless Ethernet Dispatch core on the
MT7986 ethernet driver used to offload traffic received by WLAN NIC and
forwarded to LAN/WAN one.

Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
---
 .../arm/mediatek/mediatek,mt7622-wed.yaml     | 91 +++++++++++++++++++
 .../arm/mediatek/mediatek,mt7986-wo-boot.yaml | 46 ++++++++++
 .../arm/mediatek/mediatek,mt7986-wo-ccif.yaml | 49 ++++++++++
 .../arm/mediatek/mediatek,mt7986-wo-dlm.yaml  | 50 ++++++++++
 4 files changed, 236 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-boot.yaml
 create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-ccif.yaml
 create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-dlm.yaml

diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
index 84fb0a146b6e..8e2905004790 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
@@ -29,6 +29,41 @@ properties:
   interrupts:
     maxItems: 1
 
+  memory-region:
+    minItems: 3
+    maxItems: 3
+    description:
+      phandles to nodes describing reserved memory used by mt7986-wed firmware
+      (see bindings/reserved-memory/reserved-memory.txt)
+
+  mediatek,wo-ccif:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to the mediatek wed-wo controller.
+
+  mediatek,wo-boot:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to the mediatek wed-wo boot interface.
+
+  mediatek,wo-dlm:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to the mediatek wed-wo rx hw ring.
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt7986-wed
+    then:
+      properties:
+        mediatek,wo-boot: true
+        mediatek,wo-ccif: true
+        mediatek,wo-dlm: true
+        memory-region: true
+
 required:
   - compatible
   - reg
@@ -49,3 +84,59 @@ examples:
         interrupts = <GIC_SPI 214 IRQ_TYPE_LEVEL_LOW>;
       };
     };
+
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+      reserved-memory {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        wo_emi: wo-emi at 4fd00000 {
+          reg = <0 0x4fd00000 0 0x40000>;
+          no-map;
+        };
+
+        wo_data: wo-data at 4fd80000 {
+          reg = <0 0x4fd80000 0 0x240000>;
+          no-map;
+        };
+
+        wo_ilm: wo-ilm at 151e0000 {
+          reg = <0 0x151e0000 0 0x8000>;
+          no-map;
+        };
+      };
+
+      wo_boot: wo-boot at 15194000 {
+        compatible = "mediatek,mt7986-wo-boot","syscon";
+        reg = <0 0x15194000 0 0x1000>;
+      };
+
+      wo_ccif0: wo-ccif at 151a5000 {
+        compatible = "mediatek,mt7986-wo-ccif","syscon";
+        reg = <0 0x151a5000 0 0x1000>;
+        interrupts = <GIC_SPI 211 IRQ_TYPE_LEVEL_HIGH>;
+      };
+
+      wo_dlm0: wo-dlm at 151e8000 {
+        compatible = "mediatek,mt7986-wo-dlm";
+        reg = <0 0x151e8000 0 0x2000>;
+        resets = <&ethsysrst 0>;
+        reset-names = "wocpu_rst";
+      };
+
+      wed1: wed at 1020a000 {
+        compatible = "mediatek,mt7986-wed","syscon";
+        reg = <0 0x15010000 0 0x1000>;
+        interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
+
+        memory-region = <&wo_emi>, <&wo_data>, <&wo_ilm>;
+        mediatek,wo-ccif = <&wo_ccif0>;
+        mediatek,wo-boot = <&wo_boot>;
+        mediatek,wo-dlm = <&wo_dlm0>;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-boot.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-boot.yaml
new file mode 100644
index 000000000000..ce9c971e6604
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-boot.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mt7986-wo-boot.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title:
+  MediaTek Wireless Ethernet Dispatch WO boot controller interface for MT7986
+
+maintainers:
+  - Lorenzo Bianconi <lorenzo at kernel.org>
+  - Felix Fietkau <nbd at nbd.name>
+
+description:
+  The mediatek wo-boot provides a configuration interface for WED WO
+  boot controller on MT7986 soc.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - mediatek,mt7986-wo-boot
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+      wo_boot: wo-boot at 15194000 {
+        compatible = "mediatek,mt7986-wo-boot","syscon";
+        reg = <0 0x15194000 0 0x1000>;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-ccif.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-ccif.yaml
new file mode 100644
index 000000000000..48cb27bcc4cd
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-ccif.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mt7986-wo-ccif.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MediaTek Wireless Ethernet Dispatch WO Controller for MT7986
+
+maintainers:
+  - Lorenzo Bianconi <lorenzo at kernel.org>
+  - Felix Fietkau <nbd at nbd.name>
+
+description:
+  The mediatek wo-ccif provides a configuration interface for WED WO
+  controller on MT7986 soc.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - mediatek,mt7986-wo-ccif
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+      wo_ccif0: wo-ccif at 151a5000 {
+        compatible = "mediatek,mt7986-wo-ccif","syscon";
+        reg = <0 0x151a5000 0 0x1000>;
+        interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-dlm.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-dlm.yaml
new file mode 100644
index 000000000000..db9252598a42
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-dlm.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mt7986-wo-dlm.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MediaTek Wireless Ethernet Dispatch WO hw rx ring interface for MT7986
+
+maintainers:
+  - Lorenzo Bianconi <lorenzo at kernel.org>
+  - Felix Fietkau <nbd at nbd.name>
+
+description:
+  The mediatek wo-dlm provides a configuration interface for WED WO
+  rx ring on MT7986 soc.
+
+properties:
+  compatible:
+    const: mediatek,mt7986-wo-dlm
+
+  reg:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - resets
+  - reset-names
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      wo_dlm0: wo-dlm at 151e8000 {
+        compatible = "mediatek,mt7986-wo-dlm";
+        reg = <0 0x151e8000 0 0x2000>;
+        resets = <&ethsysrst 0>;
+        reset-names = "wocpu_rst";
+      };
+    };
-- 
2.37.3

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