From: Samuel Holland <samuel@sholland.org> To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>, Jernej Skrabec <jernej.skrabec@siol.net>, Andre Przywara <andre.przywara@arm.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev, Samuel Holland <samuel@sholland.org> Subject: [PATCH 1/2] dt-bindings: usb: Document the Allwinner H6 DWC3 glue Date: Tue, 20 Apr 2021 23:28:33 -0500 [thread overview] Message-ID: <20210421042834.27309-2-samuel@sholland.org> (raw) In-Reply-To: <20210421042834.27309-1-samuel@sholland.org> The RST_BUS_XHCI reset line in the H6 affects both the DWC3 core and the USB3 PHY. This suggests the reset line controls the USB3 IP as a whole. Represent this by attaching the reset line to a glue layer device. Signed-off-by: Samuel Holland <samuel@sholland.org> --- .../usb/allwinner,sun50i-h6-dwc3.yaml | 75 +++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/allwinner,sun50i-h6-dwc3.yaml diff --git a/Documentation/devicetree/bindings/usb/allwinner,sun50i-h6-dwc3.yaml b/Documentation/devicetree/bindings/usb/allwinner,sun50i-h6-dwc3.yaml new file mode 100644 index 000000000000..86efd6d21ab4 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/allwinner,sun50i-h6-dwc3.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/allwinner,sun50i-h6-dwc3# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner H6 DWC3 USB controller + +maintainers: + - Chen-Yu Tsai <wens@csie.org> + - Maxime Ripard <mripard@kernel.org> + +properties: + compatible: + const: allwinner,sun50i-h6-dwc3 + + "#address-cells": true + + "#size-cells": true + + ranges: true + + resets: + maxItems: 1 + +# Required child node: + +patternProperties: + "^phy@[0-9a-f]+$": + $ref: allwinner,sun50i-h6-usb3-phy.yaml# + + "^usb@[0-9a-f]+$": + $ref: snps,dwc3.yaml# + +required: + - compatible + - ranges + - resets + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/sun50i-h6-ccu.h> + #include <dt-bindings/reset/sun50i-h6-ccu.h> + + usb3: usb@5200000 { + compatible = "allwinner,sun50i-h6-dwc3"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + resets = <&ccu RST_BUS_XHCI>; + + dwc3: usb@5200000 { + compatible = "snps,dwc3"; + reg = <0x05200000 0x10000>; + interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_XHCI>, + <&ccu CLK_BUS_XHCI>, + <&rtc 0>; + clock-names = "ref", "bus_early", "suspend"; + dr_mode = "host"; + phys = <&usb3phy>; + phy-names = "usb3-phy"; + }; + + usb3phy: phy@5210000 { + compatible = "allwinner,sun50i-h6-usb3-phy"; + reg = <0x5210000 0x10000>; + clocks = <&ccu CLK_USB_PHY1>; + resets = <&ccu RST_USB_PHY1>; + #phy-cells = <0>; + }; + }; -- 2.26.3
WARNING: multiple messages have this Message-ID (diff)
From: Samuel Holland <samuel@sholland.org> To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>, Jernej Skrabec <jernej.skrabec@siol.net>, Andre Przywara <andre.przywara@arm.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev, Samuel Holland <samuel@sholland.org> Subject: [PATCH 1/2] dt-bindings: usb: Document the Allwinner H6 DWC3 glue Date: Tue, 20 Apr 2021 23:28:33 -0500 [thread overview] Message-ID: <20210421042834.27309-2-samuel@sholland.org> (raw) In-Reply-To: <20210421042834.27309-1-samuel@sholland.org> The RST_BUS_XHCI reset line in the H6 affects both the DWC3 core and the USB3 PHY. This suggests the reset line controls the USB3 IP as a whole. Represent this by attaching the reset line to a glue layer device. Signed-off-by: Samuel Holland <samuel@sholland.org> --- .../usb/allwinner,sun50i-h6-dwc3.yaml | 75 +++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/allwinner,sun50i-h6-dwc3.yaml diff --git a/Documentation/devicetree/bindings/usb/allwinner,sun50i-h6-dwc3.yaml b/Documentation/devicetree/bindings/usb/allwinner,sun50i-h6-dwc3.yaml new file mode 100644 index 000000000000..86efd6d21ab4 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/allwinner,sun50i-h6-dwc3.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/allwinner,sun50i-h6-dwc3# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner H6 DWC3 USB controller + +maintainers: + - Chen-Yu Tsai <wens@csie.org> + - Maxime Ripard <mripard@kernel.org> + +properties: + compatible: + const: allwinner,sun50i-h6-dwc3 + + "#address-cells": true + + "#size-cells": true + + ranges: true + + resets: + maxItems: 1 + +# Required child node: + +patternProperties: + "^phy@[0-9a-f]+$": + $ref: allwinner,sun50i-h6-usb3-phy.yaml# + + "^usb@[0-9a-f]+$": + $ref: snps,dwc3.yaml# + +required: + - compatible + - ranges + - resets + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/sun50i-h6-ccu.h> + #include <dt-bindings/reset/sun50i-h6-ccu.h> + + usb3: usb@5200000 { + compatible = "allwinner,sun50i-h6-dwc3"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + resets = <&ccu RST_BUS_XHCI>; + + dwc3: usb@5200000 { + compatible = "snps,dwc3"; + reg = <0x05200000 0x10000>; + interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_XHCI>, + <&ccu CLK_BUS_XHCI>, + <&rtc 0>; + clock-names = "ref", "bus_early", "suspend"; + dr_mode = "host"; + phys = <&usb3phy>; + phy-names = "usb3-phy"; + }; + + usb3phy: phy@5210000 { + compatible = "allwinner,sun50i-h6-usb3-phy"; + reg = <0x5210000 0x10000>; + clocks = <&ccu CLK_USB_PHY1>; + resets = <&ccu RST_USB_PHY1>; + #phy-cells = <0>; + }; + }; -- 2.26.3 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-04-21 4:28 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-21 4:28 [PATCH 0/2] Allwinner H6 USB3 device tree updates Samuel Holland 2021-04-21 4:28 ` Samuel Holland 2021-04-21 4:28 ` Samuel Holland [this message] 2021-04-21 4:28 ` [PATCH 1/2] dt-bindings: usb: Document the Allwinner H6 DWC3 glue Samuel Holland 2021-04-21 12:51 ` Rob Herring 2021-04-21 12:51 ` Rob Herring 2021-04-22 7:42 ` Maxime Ripard 2021-04-22 7:42 ` Maxime Ripard 2021-04-21 4:28 ` [PATCH 2/2] arm64: dts: allwinner: h6: Wrap DWC3 and PHY in glue layer Samuel Holland 2021-04-21 4:28 ` Samuel Holland 2021-04-21 9:27 ` [PATCH 0/2] Allwinner H6 USB3 device tree updates Maxime Ripard 2021-04-21 9:27 ` Maxime Ripard
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