[PATCH net-next 5/6] ixp4xx_eth: Add devicetree bindings
From: Linus Walleij <hidden>
Date: 2021-08-01 00:32:07
Also in:
linux-devicetree
Subsystem:
networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
This adds device tree bindings for the IXP46x PTP Timer, a companion to the IXP4xx ethernet in newer platforms. Cc: devicetree@vger.kernel.org Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <redacted> --- .../bindings/net/intel,ixp46x-ptp-timer.yaml | 54 +++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/intel,ixp46x-ptp-timer.yaml
diff --git a/Documentation/devicetree/bindings/net/intel,ixp46x-ptp-timer.yaml b/Documentation/devicetree/bindings/net/intel,ixp46x-ptp-timer.yaml
new file mode 100644
index 000000000000..8b9b3f915d92
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/intel,ixp46x-ptp-timer.yaml@@ -0,0 +1,54 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2018 Linaro Ltd. +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/net/intel,ixp46x-ptp-timer.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Intel IXP46x PTP Timer (TSYNC) + +maintainers: + - Linus Walleij <linus.walleij@linaro.org> + +description: | + The Intel IXP46x PTP timer is known in the manual as IEEE1588 Hardware + Assist and Time Synchronization Hardware Assist TSYNC provides a PTP + timer. It exists in the Intel IXP45x and IXP46x XScale SoCs. + +properties: + compatible: + const: intel,ixp46x-ptp-timer + + reg: + maxItems: 1 + + interrupts: + items: + - description: Interrupt to trigger master mode snapshot from the + PRP timer, usually a GPIO interrupt. + - description: Interrupt to trigger slave mode snapshot from the + PRP timer, usually a GPIO interrupt. + + interrupt-names: + items: + - const: master + - const: slave + +required: + - compatible + - reg + - interrupts + - interrupt-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + ptp-timer@c8010000 { + compatible = "intel,ixp46x-ptp-timer"; + reg = <0xc8010000 0x1000>; + interrupt-parent = <&gpio0>; + interrupts = <8 IRQ_TYPE_EDGE_FALLING>, <7 IRQ_TYPE_EDGE_FALLING>; + interrupt-names = "master", "slave"; + };
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2.31.1