[net-next v2 2/5] dt-bindings: net: starfive,jh7110-dwmac: Add JHB100 support

Minda Chen
2026-04-17T02:45:46Z

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 dwmac 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 <minda.chen@starfivetech.com>
---
.../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