From: mugunthanvnm@ti.com (Mugunthan V N)
To: linux-arm-kernel@lists.infradead.org
Subject: [net-next PATCH 1/3] net: phy: dp83867: Add documentation for optional impedance control
Date: Wed, 20 Jul 2016 20:26:12 +0530 [thread overview]
Message-ID: <20160720145614.13132-2-mugunthanvnm@ti.com> (raw)
In-Reply-To: <20160720145614.13132-1-mugunthanvnm@ti.com>
Add documention of ti,impedance-control which can be used to
correct MAC impedance mismatch using phy extended registers.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
---
Documentation/devicetree/bindings/net/ti,dp83867.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/ti,dp83867.txt b/Documentation/devicetree/bindings/net/ti,dp83867.txt
index 5d21141..531ea3c5 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83867.txt
+++ b/Documentation/devicetree/bindings/net/ti,dp83867.txt
@@ -9,6 +9,13 @@ Required properties:
- ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h
for applicable values
+Optional property:
+ - ti,impedance-control - MAC Interface Impedance control to vary the
+ output impedance with an approximate range
+ from 35-70 ohms in 32 steps. Value range can
+ be 0x0 to 0x1f. Lowest impedance value is
+ 0x1f and highest impedance being 0x0.
+
Default child nodes are standard Ethernet PHY device
nodes as described in Documentation/devicetree/bindings/net/phy.txt
--
2.9.2.368.g08bb350
next prev parent reply other threads:[~2016-07-20 14:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-20 14:56 [net-next PATCH 0/3] add support for impedance control for TI dp83867 phy and fix 2nd ethernet on dra72 rev C evm Mugunthan V N
2016-07-20 14:56 ` Mugunthan V N [this message]
2016-07-20 15:33 ` [net-next PATCH 1/3] net: phy: dp83867: Add documentation for optional impedance control Nishanth Menon
2016-07-21 6:22 ` Sekhar Nori
2016-07-21 21:14 ` Rob Herring
2016-07-22 10:05 ` Mugunthan V N
2016-07-20 14:56 ` [net-next PATCH 2/3] net: phy: dp83867: add support for MAC impedance configuration Mugunthan V N
2016-07-20 14:56 ` [net-next PATCH 3/3] ARM: dts: dra72-evm-revc: fix non-working cpsw second ethernet Mugunthan V N
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