From: Selvamani Rajagopal <redacted>
Add device tree binding for the onsemi S2500 IEEE 802.3cg
compliant Ethernet transceiver device.
S2500 has both Media Access Controller (MAC) and 10Base-T1S
Ethernet PHY. MAC implements 10 Mbps half duplex Ethernet
MAC. Communication between the host and MAC-PHY is defined in
OPEN Alliance 10BASE-T1x MACPHY Serial Interface document
Reviewed-by: Krzysztof Kozlowski <redacted>
Signed-off-by: Selvamani Rajagopal <redacted>
---
changes in v10
- No change
changes in v9
- No changes
changes in v8
- Changed the interrupt type to level triggered
- Added reset-gpio entry that was recently supported.
changes in v7
- Added the missing review tag
- Removed the word YAML from the commit message
changes in v6
- Moved the signed off information to the right place.
changes in v5
- no changes
changes in v4:
- added spi-max-frequency as suggested by AI review
- changed interrupt to IRQ_TYPE_EDGE_FALLING as it is
being taken care in net (stable) branch
changes in v3
- Removed URL link that failed verification
changes in v2
- removed spi-max-frequency entry
- changed the compatible string to s2500
changes in v1
- Added the first version of YAML file for onsemi MAC-PHY
---
.../devicetree/bindings/net/onnn,s2500.yaml | 71 ++++++++++++++++++++++
MAINTAINERS | 6 ++
2 files changed, 77 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/onnn,s2500.yaml b/Documentation/devicetree/bindings/net/onnn,s2500.yaml
new file mode 100644
index 000000000000..fadd656629f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/onnn,s2500.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/onnn,s2500.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: onsemi S2500 10BASE-T1S MACPHY Ethernet Controllers
+
+maintainers:
+ - Selva Rajagopal <Selvamani.Rajagopal@onsemi.com>
+
+description:
+ The S2500 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 S2500. 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:
+ const: onnn,s2500
+
+ 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
+
+ reset-gpios:
+ description:
+ GPIO connected to the active-low RST_N pin of the MAC-PHY.
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 25000000
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - spi-max-frequency
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethernet@0 {
+ compatible = "onnn,s2500";
+ reg = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <ð0_pins>;
+ interrupt-parent = <&gpio>;
+ interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
+ spi-max-frequency = <15000000>;
+ };
+ };diff --git a/MAINTAINERS b/MAINTAINERS
index fe23913b1e43..92053fd89bb2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20999,6 +20999,12 @@ S: Supported
W: http://www.onsemi.com
F: drivers/net/phy/ncn*
+ONSEMI S2500 10BASE-T1S MACPHY ETHERNET DRIVER
+M: Selva Rajagopal <selvamani.rajagopal@onsemi.com>
+L: netdev@vger.kernel.org
+S: Supported
+F: Documentation/devicetree/bindings/net/onnn,s2500.yaml
+
OP-TEE DRIVER
M: Jens Wiklander <jenswi@kernel.org>
L: op-tee@lists.trustedfirmware.org (moderated for non-subscribers)
--
2.43.0