[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20200228155702.2062570-3-antoine.tenart@bootlin.com>
Date: Fri, 28 Feb 2020 16:57:01 +0100
From: Antoine Tenart <antoine.tenart@...tlin.com>
To: davem@...emloft.net, andrew@...n.ch, f.fainelli@...il.com,
hkallweit1@...il.com
Cc: Antoine Tenart <antoine.tenart@...tlin.com>,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
foss@...il.net
Subject: [PATCH net-next v2 2/3] dt-bindings: net: phy: mscc: document rgmii skew properties
This patch documents two new properties to describe RGMII skew delays in
both Rx and Tx: vsc8584,rgmii-skew-rx and vsc8584,rgmii-skew-tx.
Signed-off-by: Antoine Tenart <antoine.tenart@...tlin.com>
---
.../devicetree/bindings/net/mscc-phy-vsc8531.txt | 8 ++++++++
include/dt-bindings/net/mscc-phy-vsc8531.h | 10 ++++++++++
2 files changed, 18 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt b/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt
index 5ff37c68c941..c682b6e74b14 100644
--- a/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt
+++ b/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt
@@ -31,6 +31,14 @@ Optional properties:
VSC8531_LINK_100_ACTIVITY (2),
VSC8531_LINK_ACTIVITY (0) and
VSC8531_DUPLEX_COLLISION (8).
+- vsc8584,rgmii-skew-rx : RGMII skew delay in Rx.
+ Allowed values are defined in
+ "include/dt-bindings/net/mscc-phy-vsc8531.h".
+ Default value is VSC8584_RGMII_SKEW_0_2.
+- vsc8584,rgmii-skew-tx : RGMII skew delay in Tx.
+ Allowed values are defined in
+ "include/dt-bindings/net/mscc-phy-vsc8531.h".
+ Default value is VSC8584_RGMII_SKEW_0_2.
Table: 1 - Edge rate change
diff --git a/include/dt-bindings/net/mscc-phy-vsc8531.h b/include/dt-bindings/net/mscc-phy-vsc8531.h
index 9eb2ec2b2ea9..02313cb3fc35 100644
--- a/include/dt-bindings/net/mscc-phy-vsc8531.h
+++ b/include/dt-bindings/net/mscc-phy-vsc8531.h
@@ -28,4 +28,14 @@
#define VSC8531_FORCE_LED_OFF 14
#define VSC8531_FORCE_LED_ON 15
+/* RGMII skew values, in ns */
+#define VSC8584_RGMII_SKEW_0_2 0
+#define VSC8584_RGMII_SKEW_0_8 1
+#define VSC8584_RGMII_SKEW_1_1 2
+#define VSC8584_RGMII_SKEW_1_7 3
+#define VSC8584_RGMII_SKEW_2_0 4
+#define VSC8584_RGMII_SKEW_2_3 5
+#define VSC8584_RGMII_SKEW_2_6 6
+#define VSC8584_RGMII_SKEW_3_4 7
+
#endif
--
2.24.1
Powered by blists - more mailing lists