summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/net/meson-dwmac.txt
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2017-03-10 08:56:15 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2017-03-10 08:56:15 +0100
commit957bb6b6bcebc4c36f5f284dfb58d489e81016c6 (patch)
tree593d098617017987daaf8ce339e0eb29ea09fdde /dts/Bindings/net/meson-dwmac.txt
parentcc2392cf4f2d5208be427e9ffdeafba192f05cbe (diff)
downloadbarebox-957bb6b6bcebc4c36f5f284dfb58d489e81016c6.tar.gz
barebox-957bb6b6bcebc4c36f5f284dfb58d489e81016c6.tar.xz
dts: update to v4.11-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/net/meson-dwmac.txt')
-rw-r--r--dts/Bindings/net/meson-dwmac.txt16
1 files changed, 16 insertions, 0 deletions
diff --git a/dts/Bindings/net/meson-dwmac.txt b/dts/Bindings/net/meson-dwmac.txt
index 89e62ddc69..0703ad3f3c 100644
--- a/dts/Bindings/net/meson-dwmac.txt
+++ b/dts/Bindings/net/meson-dwmac.txt
@@ -25,6 +25,22 @@ Required properties on Meson8b and newer:
- "clkin0" - first parent clock of the internal mux
- "clkin1" - second parent clock of the internal mux
+Optional properties on Meson8b and newer:
+- amlogic,tx-delay-ns: The internal RGMII TX clock delay (provided
+ by this driver) in nanoseconds. Allowed values
+ are: 0ns, 2ns, 4ns, 6ns.
+ When phy-mode is set to "rgmii" then the TX
+ delay should be explicitly configured. When
+ not configured a fallback of 2ns is used.
+ When the phy-mode is set to either "rgmii-id"
+ or "rgmii-txid" the TX clock delay is already
+ provided by the PHY. In that case this
+ property should be set to 0ns (which disables
+ the TX clock delay in the MAC to prevent the
+ clock from going off because both PHY and MAC
+ are adding a delay).
+ Any configuration is ignored when the phy-mode
+ is set to "rmii".
Example for Meson6: