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authorIyappan Subramanian <isubramanian@apm.com>2015-10-26 15:25:16 -0700
committerDavid S. Miller <davem@davemloft.net>2015-10-30 12:21:52 +0900
commit6ccbe6b248ef8cc31477a388ea9841b56030bea9 (patch)
tree7b6bca0cfcf606f47d9b998cbc44cbc9b75b2729 /Documentation
parent16615a4c6f4d54d7655dff19e7061c76043f907d (diff)
Documentation: dts: xgene: Add TX/RX delay field
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/net/apm-xgene-enet.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/apm-xgene-enet.txt b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
index f55aa280d34f..078060a97f95 100644
--- a/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
+++ b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
@@ -37,6 +37,14 @@ Required properties for ethernet interfaces that have external PHY:
Optional properties:
- status: Should be "ok" or "disabled" for enabled/disabled. Default is "ok".
+- tx-delay: Delay value for RGMII bridge TX clock.
+ Valid values are between 0 to 7, that maps to
+ 417, 717, 1020, 1321, 1611, 1913, 2215, 2514 ps
+ Default value is 4, which corresponds to 1611 ps
+- rx-delay: Delay value for RGMII bridge RX clock.
+ Valid values are between 0 to 7, that maps to
+ 273, 589, 899, 1222, 1480, 1806, 2147, 2464 ps
+ Default value is 2, which corresponds to 899 ps
Example:
menetclk: menetclk {
@@ -72,5 +80,7 @@ Example:
/* Board-specific peripheral configurations */
&menet {
+ tx-delay = <4>;
+ rx-delay = <2>;
status = "ok";
};