dt-bindings: net: ftgmac100: Add resets property

In Aspeed AST2600 design, the MAC internal delay on MAC register cannot
fully reset the RMII interfaces, it may cause the RMII incompletely.
Therefore, we need to add resets property to do SoC-level reset line to
reset the whole MAC function that includes ftgmac, RGMII and RMII.

Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250709070809.2560688-2-jacky_chou@aspeedtech.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/Documentation/devicetree/bindings/net/faraday,ftgmac100.yaml b/Documentation/devicetree/bindings/net/faraday,ftgmac100.yaml
index 55d6a8379025bf6b9edd1535a1e644ccf0e6dc8d..d14410018bcf6f57471088d3ca38baf046171686 100644 (file)
--- a/Documentation/devicetree/bindings/net/faraday,ftgmac100.yaml
+++ b/Documentation/devicetree/bindings/net/faraday,ftgmac100.yaml
@@ -6,9 +6,6 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Faraday Technology FTGMAC100 gigabit ethernet controller
 
-allOf:
-  - $ref: ethernet-controller.yaml#
-
 maintainers:
   - Po-Yu Chuang <ratbert@faraday-tech.com>
 
@@ -35,6 +32,9 @@ properties:
       - description: MAC IP clock
       - description: RMII RCLK gate for AST2500/2600
 
+  resets:
+    maxItems: 1
+
   clock-names:
     minItems: 1
     items:
@@ -74,6 +74,21 @@ required:
   - reg
   - interrupts
 
+allOf:
+  - $ref: ethernet-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - aspeed,ast2600-mac
+    then:
+      properties:
+        resets: true
+    else:
+      properties:
+        resets: false
+
 unevaluatedProperties: false
 
 examples: