From: Dimitri Fedrau <dimitri.fedrau@xxxxxxxxxxxx>
The GPIO2 pin on the DP83822 can be configured as clock output. Add
binding to support this feature.
Signed-off-by: Dimitri Fedrau <dimitri.fedrau@xxxxxxxxxxxx>
---
.../devicetree/bindings/net/ti,dp83822.yaml | 27 ++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/ti,dp83822.yaml b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
index 784866ea392b2083e93d8dc9aaea93b70dc80934..50c24248df266f1950371b950cd9c4d417835f97 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83822.yaml
+++ b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
@@ -96,6 +96,32 @@ properties:
- master
- slave
+ ti,gpio2-clk-out:
+ description: |
+ DP83822 PHY only.
+ The GPIO2 pin on the DP83822 can be configured as clock output. When
+ omitted, the PHY's default will be left as is.
+
+ - 'mac-if': In MII mode the clock frequency is 25-MHz, in RMII Mode the
+ clock frequency is 50-MHz and in RGMII Mode the clock frequency is
+ 25-MHz.
+ - 'xi': XI clock(pass-through clock from XI pin).
+ - 'int-ref': Internal reference clock 25-MHz.
+ - 'rmii-master-mode-ref': RMII master mode reference clock 50-MHz. RMII
+ master mode reference clock is identical to MAC IF clock in RMII master
+ mode.
+ - 'free-running': Free running clock 125-MHz.
+ - 'recovered': Recovered clock is a 125-MHz recovered clock from a
+ connected link partner.
+ $ref: /schemas/types.yaml#/definitions/string
+ enum:
+ - mac-if
+ - xi
+ - int-ref
+ - rmii-master-mode-ref
+ - free-running
+ - recovered
+
required:
- reg
@@ -110,6 +136,7 @@ examples:
reg = <0>;
rx-internal-delay-ps = <1>;
tx-internal-delay-ps = <1>;
+ ti,gpio2-clk-out = "xi";
};
};
--
2.39.5
