Add property st,ext-phyclk to manage cases when PHY have no cristal/quartz
This property can be used with RMII phy without cristal 50Mhz and when we
want to select RCC clock instead of ETH_REF_CLK
Can be used also with RGMII phy with no cristal and we select RCC clock
instead of ETH_CLK125
This new property replace st,eth-clk-sel and st,eth-ref-clk-sel
Signed-off-by: Christophe Roullier <christophe.roullier@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/net/stm32-dwmac.yaml | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/stm32-dwmac.yaml b/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
index 80937b28fa046..fda23c07c1cad 100644
--- a/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
@@ -85,12 +85,21 @@ properties:
phy-supply:
description: PHY regulator
+ st,ext-phyclk:
+ description:
+ set this property in RMII mode when you have PHY without crystal 50MHz and want to
+ select RCC clock instead of ETH_REF_CLK. OR in RGMII mode when you want to select
+ RCC clock instead of ETH_CLK125.
+ type: boolean
+
st,eth-clk-sel:
+ deprecated: true
description:
set this property in RGMII PHY when you want to select RCC clock instead of ETH_CLK125.
type: boolean
st,eth-ref-clk-sel:
+ deprecated: true
description:
set this property in RMII mode when you have PHY without crystal 50MHz and want to
select RCC clock instead of ETH_REF_CLK.
--
2.25.1
