提交 d6081de7 编写于 作者: M Mugunthan V N 提交者: David S. Miller

net: phy: dp83867: Add documentation for optional impedance control

Add documention of ti,min-output-impedance and ti,max-output-impedance
which can be used to correct MAC impedance mismatch using phy extended
registers.
Signed-off-by: NMugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 403f0727
...@@ -9,6 +9,18 @@ Required properties: ...@@ -9,6 +9,18 @@ Required properties:
- ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h - ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h
for applicable values for applicable values
Optional property:
- ti,min-output-impedance - MAC Interface Impedance control to set
the programmable output impedance to
minimum value (35 ohms).
- ti,max-output-impedance - MAC Interface Impedance control to set
the programmable output impedance to
maximum value (70 ohms).
Note: ti,min-output-impedance and ti,max-output-impedance are mutually
exclusive. When both properties are present ti,max-output-impedance
takes precedence.
Default child nodes are standard Ethernet PHY device Default child nodes are standard Ethernet PHY device
nodes as described in Documentation/devicetree/bindings/net/phy.txt nodes as described in Documentation/devicetree/bindings/net/phy.txt
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册