Subject: [net-next v1 v1 2/5] dt-bindings: net: starfive,jh7110-dwmac: Add JHB100 support

From: Minda Chen <[email-masked]>
Date: Wed, 8 Apr 2026 16:44:13 +0800

Add StarFive JHB100 dwmac support and compatible.
The JHB100 dwmac shares the same driver code as the JH7110 dwmac,
which contains 2 SGMII interfaces, 1 RGMII/RMII interface and
1 RMII interface.
JHB100 dwmacc has only one reset signal and one main interrupt
line.

Please refer to below:

JHB100: reset-names = "stmmaceth";

Example usage of JHB100 in the device tree:

gmac0: ethernet@11b80000 {
        compatible = "starfive,jhb100-dwmac",
                     "snps,dwmac-5.20";
        interrupts = <225>;
        interrupt-names = "macirq";
        ...
};

Signed-off-by: Minda Chen <[email-masked]>
---
 .../devicetree/bindings/net/snps,dwmac.yaml   |  1 +
 .../bindings/net/starfive,jh7110-dwmac.yaml   | 23 +++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 38bc34dc4f09..85cd3252e8b1 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -115,6 +115,7 @@ properties:
         - sophgo,sg2044-dwmac
         - starfive,jh7100-dwmac
         - starfive,jh7110-dwmac
+        - starfive,jhb100-dwmac
         - tesla,fsd-ethqos
         - thead,th1520-gmac
 
diff --git a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
index 0d1962980f57..edc246a71ce3 100644
--- a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
@@ -18,6 +18,7 @@ select:
         enum:
           - starfive,jh7100-dwmac
           - starfive,jh7110-dwmac
+          - starfive,jhb100-dwmac
   required:
     - compatible
 
@@ -30,6 +31,9 @@ properties:
       - items:
           - const: starfive,jh7110-dwmac
           - const: snps,dwmac-5.20
+      - items:
+          - const: starfive,jhb100-dwmac
+          - const: snps,dwmac-5.20
 
   reg:
     maxItems: 1
@@ -122,6 +126,25 @@ allOf:
         reset-names:
           minItems: 2
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: starfive,jhb100-dwmac
+    then:
+      properties:
+        interrupts:
+          maxItems: 1
+
+        interrupt-names:
+          const: macirq
+
+        resets:
+          maxItems: 1
+
+        reset-names:
+          const: stmmaceth
+
 unevaluatedProperties: false
 
 examples:
-- 
2.17.1