[PATCH net-next 3/3] dt-bindings: net: Add fixed-link support

From: Moritz Fischer
Date: Mon Feb 04 2019 - 12:31:16 EST


From: Moritz Fischer <mdf@xxxxxxxxxx>

Update device-tree binding with fixed-link support.

With fixed-link support the formerly required property 'phy-handle'
is now optional if 'fixed-link' child is present.

Signed-off-by: Moritz Fischer <mdf@xxxxxxxxxx>
---
.../devicetree/bindings/net/nixge.txt | 33 ++++++++++++++++++-
1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/nixge.txt b/Documentation/devicetree/bindings/net/nixge.txt
index bb2929f9c64f..85d7240a9b20 100644
--- a/Documentation/devicetree/bindings/net/nixge.txt
+++ b/Documentation/devicetree/bindings/net/nixge.txt
@@ -12,12 +12,14 @@ Required properties:
- interrupts: Should contain tx and rx interrupt
- interrupt-names: Should be "rx" and "tx"
- phy-mode: See ethernet.txt file in the same directory.
-- phy-handle: See ethernet.txt file in the same directory.
- nvmem-cells: Phandle of nvmem cell containing the MAC address
- nvmem-cell-names: Should be "address"

Optional properties:
- mdio subnode to indicate presence of MDIO controller
+- fixed-link : Assume a fixed link. See fixed-link.txt in the same directory.
+ Use instead of phy-handle.
+- phy-handle: See ethernet.txt file in the same directory.

Examples (10G generic PHY):
nixge0: ethernet@40000000 {
@@ -59,3 +61,32 @@ Examples (10G generic PHY, no MDIO):
phy-mode = "xgmii";
phy-handle = <&ethernet_phy1>;
};
+
+Examples (1G generic fixed-link + MDIO):
+ nixge0: ethernet@40000000 {
+ compatible = "ni,xge-enet-2.00";
+ reg = <0x40000000 0x6000>;
+
+ nvmem-cells = <&eth1_addr>;
+ nvmem-cell-names = "address";
+
+ interrupts = <0 29 IRQ_TYPE_LEVEL_HIGH>, <0 30 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "rx", "tx";
+ interrupt-parent = <&intc>;
+
+ phy-mode = "xgmii";
+
+ fixed-link {
+ speed = <1000>;
+ pause;
+ link-gpios = <&gpio0 63 GPIO_ACTIVE_HIGH>;
+ };
+
+ mdio {
+ ethernet_phy1: ethernet-phy@4 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <4>;
+ };
+ };
+
+ };
--
2.20.1