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Date: Fri, 22 Oct 2021 12:35:47 -0400
From: Sean Anderson <sean.anderson@...o.com>
To: netdev@...r.kernel.org,
Nicolas Ferre <nicolas.ferre@...rochip.com>,
Claudiu Beznea <claudiu.beznea@...rochip.com>
Cc: Jakub Kicinski <kuba@...nel.org>,
"David S . Miller" <davem@...emloft.net>,
linux-kernel@...r.kernel.org,
Sean Anderson <sean.anderson@...o.com>,
Rob Herring <robh@...nel.org>, devicetree@...r.kernel.org
Subject: [net-next PATCH 1/2] dt-bindings: net: macb: Add mdio bus child node
This adds an optional mdio bus child node. If present, the mac will
look for PHYs there instead of directly under the top-level node. This
eliminates any ambiguity about whether child nodes are PHYs, and allows
the MDIO bus to contain non-PHY devices.
Signed-off-by: Sean Anderson <sean.anderson@...o.com>
---
Documentation/devicetree/bindings/net/macb.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/macb.txt b/Documentation/devicetree/bindings/net/macb.txt
index af9df2f01a1c..a1b06fd1962e 100644
--- a/Documentation/devicetree/bindings/net/macb.txt
+++ b/Documentation/devicetree/bindings/net/macb.txt
@@ -30,6 +30,10 @@ Required properties:
Optional elements: 'tsu_clk'
- clocks: Phandles to input clocks.
+Optional properties:
+- mdio: node containing PHY children. If this node is not present, then PHYs
+ will be direct children.
+
The MAC address will be determined using the optional properties
defined in ethernet.txt.
--
2.25.1
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