diff options
| author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2020-05-13 00:10:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-13 22:23:13 +0300 |
| commit | 7af4c8451d80d0a8622483c27ab141a7c1a94573 (patch) | |
| tree | c669e2183143892294312c044e0fbc6e84a54ee2 /Documentation | |
| parent | 6cd35888a0db4b18a5796fe5d5863f004f8eef0f (diff) | |
| download | linux-7af4c8451d80d0a8622483c27ab141a7c1a94573.tar.xz | |
dt-bindings: net: meson-dwmac: Add the amlogic,rx-delay-ns property
The PRG_ETHERNET registers on Meson8b and newer SoCs can add an RX
delay. Add a property with the known supported values so it can be
configured according to the board layout.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml index ae91aa9d8616..66074314e57a 100644 --- a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml +++ b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml @@ -67,6 +67,19 @@ allOf: PHY and MAC are adding a delay). Any configuration is ignored when the phy-mode is set to "rmii". + amlogic,rx-delay-ns: + enum: + - 0 + - 2 + default: 0 + description: + The internal RGMII RX clock delay (provided by this IP block) in + nanoseconds. When phy-mode is set to "rgmii" then the RX delay + should be explicitly configured. When the phy-mode is set to + either "rgmii-id" or "rgmii-rxid" the RX clock delay is already + provided by the PHY. Any configuration is ignored when the + phy-mode is set to "rmii". + properties: compatible: additionalItems: true |