summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/net/stmmac.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/net/stmmac.txt')
-rw-r--r--Documentation/devicetree/bindings/net/stmmac.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
index 9b03c57563a..e45ac3f926b 100644
--- a/Documentation/devicetree/bindings/net/stmmac.txt
+++ b/Documentation/devicetree/bindings/net/stmmac.txt
@@ -39,6 +39,10 @@ Optional properties:
further clocks may be specified in derived bindings.
- clock-names: One name for each entry in the clocks property, the
first one should be "stmmaceth".
+- clk_ptp_ref: this is the PTP reference clock; in case of the PTP is
+ available this clock is used for programming the Timestamp Addend Register.
+ If not passed then the system clock will be used and this is fine on some
+ platforms.
Examples: