[PATCH net-next v5 14/14] dt-bindings: net: add Microchip's LAN865X 10BASE-T1S MACPHY

Parthiban Veerasooran
2024-07-26T12:41:24Z

The LAN8650/1 combines a Media Access Controller (MAC) and an Ethernet
PHY to enable 10BASE-T1S networks. The Ethernet Media Access Controller
(MAC) module implements a 10 Mbps half duplex Ethernet MAC, compatible
with the IEEE 802.3 standard and a 10BASE-T1S physical layer transceiver
integrated into the LAN8650/1. The communication between the Host and the
MAC-PHY is specified in the OPEN Alliance 10BASE-T1x MACPHY Serial
Interface (TC6).

Reviewed-by: Conor Dooley<conor.dooley@microchip.com>
Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@microchip.com>
---
.../bindings/net/microchip,lan8650.yaml | 80 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 81 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/microchip,lan8650.yaml

diff --git a/Documentation/devicetree/bindings/net/microchip,lan8650.yaml b/Documentation/devicetree/bindings/net/microchip,lan8650.yaml
new file mode 100644
index 000000000000..c4538b431f59
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/microchip,lan8650.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/microchip,lan865x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip LAN8650/1 10BASE-T1S MACPHY Ethernet Controllers
+
+maintainers:
+ - Parthiban Veerasooran <parthiban.veerasooran@microchip.com>
+
+description:
+ The LAN8650/1 combines a Media Access Controller (MAC) and an Ethernet
+ PHY to enable 10BASE‑T1S networks. The Ethernet Media Access Controller
+ (MAC) module implements a 10 Mbps half duplex Ethernet MAC, compatible
+ with the IEEE 802.3 standard and a 10BASE-T1S physical layer transceiver
+ integrated into the LAN8650/1. The communication between the Host and
+ the MAC-PHY is specified in the OPEN Alliance 10BASE-T1x MACPHY Serial
+ Interface (TC6).
+
+allOf:
+ - $ref: /schemas/net/ethernet-controller.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - const: microchip,lan8650
+ - items:
+ - const: microchip,lan8651
+ - const: microchip,lan8650
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description:
+ Interrupt from MAC-PHY asserted in the event of Receive Chunks
+ Available, Transmit Chunk Credits Available and Extended Status
+ Event.
+ maxItems: 1
+
+ spi-max-frequency:
+ minimum: 15000000
+ maximum: 25000000
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - spi-max-frequency
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethernet@0 {
+ compatible = "microchip,lan8651", "microchip,lan8650";
+ reg = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&eth0_pins>;
+ interrupt-parent = <&gpio>;
+ interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
+ local-mac-address = [04 05 06 01 02 03];
+ spi-max-frequency = <15000000>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index e7d092d9a752..ba9053b0ac77 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14904,6 +14904,7 @@ MICROCHIP LAN8650/1 10BASE-T1S MACPHY ETHERNET DRIVER
M: Parthiban Veerasooran <parthiban.veerasooran@microchip.com>
L: netdev@vger.kernel.org
S: Maintained
+F: Documentation/devicetree/bindings/net/microchip,lan8650.yaml
F: drivers/net/ethernet/microchip/lan865x/lan865x.c

MICROCHIP LAN87xx/LAN937x T1 PHY DRIVER
--
2.34.1