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[net-next,v8,1/5] dt-bindings: net: Add tx and rx internal delays

Message ID 20200618211011.28837-2-dmurphy@ti.com
State Superseded
Headers show
Series RGMII Internal delay common property | expand

Commit Message

Dan Murphy June 18, 2020, 9:10 p.m. UTC 
tx-internal-delays and rx-internal-delays are a common setting for RGMII
capable devices.

These properties are used when the phy-mode or phy-controller is set to
rgmii-id, rgmii-rxid or rgmii-txid.  These modes indicate to the
controller that the PHY will add the internal delay for the connection.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

Signed-off-by: Dan Murphy <dmurphy@ti.com>

---
 .../devicetree/bindings/net/ethernet-phy.yaml       | 13 +++++++++++++
 1 file changed, 13 insertions(+)

-- 
2.26.2
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Patch

diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
index 9b1f1147ca36..7d8265eb49d6 100644
--- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
@@ -162,6 +162,19 @@  properties:
     description:
       Specifies a reference to a node representing a SFP cage.
 
+
+  rx-internal-delay-ps:
+    description: |
+      RGMII Receive PHY Clock Delay defined in pico seconds.  This is used for
+      PHY's that have configurable RX internal delays.  If this property is
+      present then the PHY applies the RX delay.
+
+  tx-internal-delay-ps:
+    description: |
+      RGMII Transmit PHY Clock Delay defined in pico seconds.  This is used for
+      PHY's that have configurable TX internal delays. If this property is
+      present then the PHY applies the TX delay.
+
 required:
   - reg