| Message ID | 20200429201644.1144546-2-martin.blumenstingl@googlemail.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | dwmac-meson8b Ethernet RX delay configuration | expand |
On Wed, Apr 29, 2020 at 10:16:34PM +0200, Martin Blumenstingl wrote: > 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. > > Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Andrew
On Wed, Apr 29, 2020 at 10:16:34PM +0200, Martin Blumenstingl wrote: > 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. > > Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> > --- > .../bindings/net/amlogic,meson-dwmac.yaml | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml > index ae91aa9d8616..8d851f59d9f2 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: > + $ref: /schemas/types.yaml#definitions/uint32 Don't need to define the type when in standard units. > + enum: > + - 0 > + - 2 > + 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 not configured a fallback of > + 0ns is used. When the phy-mode is set to either "rgmii-id" or 'default: 0' expresses this. > + "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 > -- > 2.26.2 >
diff --git a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml index ae91aa9d8616..8d851f59d9f2 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: + $ref: /schemas/types.yaml#definitions/uint32 + enum: + - 0 + - 2 + 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 not configured a fallback of + 0ns is used. 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
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. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> --- .../bindings/net/amlogic,meson-dwmac.yaml | 13 +++++++++++++ 1 file changed, 13 insertions(+)