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90 lines
2.3 KiB
Diff
90 lines
2.3 KiB
Diff
From 834ab8867f3537c2a1c40853309aeb63401f7b34 Mon Sep 17 00:00:00 2001
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From: Sven Peter <sven@svenpeter.dev>
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Date: Sun, 7 Nov 2021 11:21:19 +0100
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Subject: [PATCH 063/171] dt-bindings: usb: Add Apple dwc3 bindings
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Apple Silicon SoCs such as the M1 have multiple USB controllers based on
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the Synopsys DesignWare USB3 controller.
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References to the ATC PHY required for SuperSpeed are left out for now
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until support has been upstreamed as well.
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Signed-off-by: Sven Peter <sven@svenpeter.dev>
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---
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.../devicetree/bindings/usb/apple,dwc3.yaml | 64 +++++++++++++++++++
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1 file changed, 64 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/usb/apple,dwc3.yaml
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diff --git a/Documentation/devicetree/bindings/usb/apple,dwc3.yaml b/Documentation/devicetree/bindings/usb/apple,dwc3.yaml
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new file mode 100644
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index 000000000000..fb3b3489e6b2
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/usb/apple,dwc3.yaml
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@@ -0,0 +1,64 @@
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+# SPDX-License-Identifier: GPL-2.0
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+%YAML 1.2
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+---
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+$id: http://devicetree.org/schemas/usb/apple,dwc3.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: Apple Silicon DWC3 USB controller
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+
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+maintainers:
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+ - Sven Peter <sven@svenpeter.dev>
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+
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+description:
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+ On Apple Silicon SoCs such as the M1 each Type-C port has a corresponding
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+ USB controller based on the Synopsys DesignWare USB3 controller.
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+
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+ The common content of this binding is defined in snps,dwc3.yaml.
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+
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+allOf:
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+ - $ref: snps,dwc3.yaml#
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+
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+select:
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+ properties:
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+ compatible:
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+ contains:
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+ const: apple,dwc3
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+ required:
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+ - compatible
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+
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+properties:
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+ compatible:
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+ items:
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+ - enum:
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+ - apple,t8103-dwc3
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+ - apple,t6000-dwc3
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+ - const: apple,dwc3
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+ - const: snps,dwc3
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+
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+ reg:
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+ maxItems: 1
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+
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+ interrupts:
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+ maxItems: 1
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+
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+unevaluatedProperties: false
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+
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+required:
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+ - compatible
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+ - reg
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+ - interrupts
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+
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+examples:
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+ - |
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+ #include <dt-bindings/interrupt-controller/apple-aic.h>
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+ #include <dt-bindings/interrupt-controller/irq.h>
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+
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+ usb@82280000 {
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+ compatible = "apple,t8103-dwc3", "apple,dwc3", "snps,dwc3";
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+ reg = <0x82280000 0x10000>;
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+ interrupts = <AIC_IRQ 777 IRQ_TYPE_LEVEL_HIGH>;
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+
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+ dr_mode = "otg";
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+ usb-role-switch;
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+ role-switch-default-mode = "host";
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+ };
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--
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2.34.1
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