netdev - [PATCH net-next 2/2] dt-bindings: add mdio frequency description

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Message-Id: <20221020094106.559266-3-andy.chiu@sifive.com>
Date:   Thu, 20 Oct 2022 17:41:06 +0800
From:   Andy Chiu <andy.chiu@...ive.com>
To:     davem@...emloft.net, kuba@...nel.org, michal.simek@...inx.com,
        radhey.shyam.pandey@...inx.com
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        pabeni@...hat.com, edumazet@...gle.com, andy.chiu@...ive.com,
        greentime.hu@...ive.com
Subject: [PATCH net-next 2/2] dt-bindings: add mdio frequency description

Add a property to set mdio bus frequency at runtime by DT.

Signed-off-by: Andy Chiu <andy.chiu@...ive.com>
Reviewed-by: Greentime Hu <greentime.hu@...ive.com>
---
 Documentation/devicetree/bindings/net/xilinx_axienet.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/xilinx_axienet.txt b/Documentation/devicetree/bindings/net/xilinx_axienet.txt
index 1aa4c6006cd0..d78cf402aa2a 100644
--- a/Documentation/devicetree/bindings/net/xilinx_axienet.txt
+++ b/Documentation/devicetree/bindings/net/xilinx_axienet.txt
@@ -43,6 +43,9 @@ Optional properties:
 		  support both 1000BaseX and SGMII modes. If set, the phy-mode
 		  should be set to match the mode selected on core reset (i.e.
 		  by the basex_or_sgmii core input line).
+- xlnx,mdio-freq: Define the clock frequency of the MDIO bus. If the property
+		  does not pressent on the DT, then the mdio driver would use
+		  the default 2.5 MHz clock, as mentioned on 802.3 spc.
 - clock-names: 	  Tuple listing input clock names. Possible clocks:
 		  s_axi_lite_clk: Clock for AXI register slave interface
 		  axis_clk: AXI4-Stream clock for TXD RXD TXC and RXS interfaces
-- 
2.36.0