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[35.204.239.8]) by smtp.gmail.com with ESMTPSA id ww4-20020a170907084400b00a51d88e6164sm7443632ejb.203.2024.04.23.13.52.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Apr 2024 13:52:50 -0700 (PDT) From: =?utf-8?q?Andr=C3=A9_Draszik?= Date: Tue, 23 Apr 2024 21:52:48 +0100 Subject: [PATCH 1/2] arm64: dts: exynos: gs101: add USB & USB-phy nodes Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240423-usb-dts-gs101-v1-1-3421b0371298@linaro.org> References: <20240423-usb-dts-gs101-v1-0-3421b0371298@linaro.org> In-Reply-To: <20240423-usb-dts-gs101-v1-0-3421b0371298@linaro.org> To: Peter Griffin , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar Cc: Tudor Ambarus , Will McVicker , Roy Luo , kernel-team@android.com, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Andr=C3=A9_Draszik?= X-Mailer: b4 0.12.4 Add the USB 3.1 Dual Role Device (DRD) controller and USB-PHY nodes for Google Tensor GS101. The USB 3.1 DRD controller has the following features: * compliant with both USB device 3.1 and USB device 2.0 standards * compliant with USB host 3.1 and USB host 2.0 standards * supports USB device 3.1 and USB device 2.0 interfaces * supports USB host 3.1 and USB host 2.0 interfaces * full-speed (12 Mbps) and high-speed (480 Mbps) modes with USB device 2.0 interface * super-speed (5 Gbps) mode with USB device 3.1 Gen1 interface * super-speed plus (10 Gbps) mode with USB device 3.1 Gen2 interface * single USB port which can be be used for USB 3.1 or USB 2.0 * on-chip USB PHY transceiver * DWC3 compatible * supports up to 16 bi-directional endpoints * compliant with xHCI 1.1 specification Signed-off-by: Andr=C3=A9 Draszik --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 41 ++++++++++++++++++++++++= ++++ 1 file changed, 41 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot= /dts/exynos/google/gs101.dtsi index eddb6b326fde..b4e48ab890a6 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -1247,6 +1247,47 @@ spi_13: spi@10d60000 { }; }; =20 + usbdrd31_phy: phy@11100000 { + compatible =3D "google,gs101-usb31drd-phy"; + reg =3D <0x11100000 0x0100>, + <0x110f0000 0x0800>, + <0x110e0000 0x2800>; + reg-names =3D "phy", "pcs", "pma"; + clocks =3D <&cmu_hsi0 CLK_GOUT_HSI0_USB31DRD_ACLK_PHYCTRL>, + <&cmu_hsi0 CLK_GOUT_HSI0_USB31DRD_I_USB20_PHY_REFCLK_26>, + <&cmu_hsi0 CLK_GOUT_HSI0_UASC_HSI0_CTRL_ACLK>, + <&cmu_hsi0 CLK_GOUT_HSI0_UASC_HSI0_CTRL_PCLK>, + <&cmu_hsi0 CLK_GOUT_HSI0_USB31DRD_I_USBDPPHY_SCL_APB_PCLK>; + clock-names =3D "phy", "ref", "ctrl_aclk", "ctrl_pclk", "scl_pclk"; + samsung,pmu-syscon =3D <&pmu_system_controller>; + #phy-cells =3D <1>; + status =3D "disabled"; + }; + + usbdrd31: usb@11110000 { + compatible =3D "google,gs101-dwusb3"; + clocks =3D <&cmu_hsi0 CLK_GOUT_HSI0_USB31DRD_BUS_CLK_EARLY>, + <&cmu_hsi0 CLK_GOUT_HSI0_USB31DRD_I_USB31DRD_SUSPEND_CLK_26>, + <&cmu_hsi0 CLK_GOUT_HSI0_UASC_HSI0_LINK_ACLK>, + <&cmu_hsi0 CLK_GOUT_HSI0_UASC_HSI0_LINK_PCLK>; + clock-names =3D "bus_early", "susp_clk", "link_aclk", "link_pclk"; + #address-cells =3D <1>; + #size-cells =3D <1>; + ranges =3D <0x0 0x11110000 0x10000>; + status =3D "disabled"; + + usbdrd31_dwc3: usb@0 { + compatible =3D "snps,dwc3"; + clocks =3D <&cmu_hsi0 CLK_GOUT_HSI0_USB31DRD_I_USB31DRD_REF_CLK_40>; + clock-names =3D "ref"; + reg =3D <0x0 0x10000>; + interrupts =3D ; + phys =3D <&usbdrd31_phy 0>, <&usbdrd31_phy 1>; + phy-names =3D "usb2-phy", "usb3-phy"; + status =3D "disabled"; + }; + }; + pinctrl_hsi1: pinctrl@11840000 { compatible =3D "google,gs101-pinctrl"; reg =3D <0x11840000 0x00001000>; --=20 2.44.0.769.g3c40516874-goog From nobody Tue Feb 10 00:46:27 2026 Received: from mail-wr1-f46.google.com (mail-wr1-f46.google.com [209.85.221.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 25FAB143C6E for ; Tue, 23 Apr 2024 20:52:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.46 ARC-Seal: i=1; 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[35.204.239.8]) by smtp.gmail.com with ESMTPSA id ww4-20020a170907084400b00a51d88e6164sm7443632ejb.203.2024.04.23.13.52.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Apr 2024 13:52:51 -0700 (PDT) From: =?utf-8?q?Andr=C3=A9_Draszik?= Date: Tue, 23 Apr 2024 21:52:49 +0100 Subject: [PATCH 2/2] arm64: dts: exynos: gs101-oriole: enable USB on this board Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240423-usb-dts-gs101-v1-2-3421b0371298@linaro.org> References: <20240423-usb-dts-gs101-v1-0-3421b0371298@linaro.org> In-Reply-To: <20240423-usb-dts-gs101-v1-0-3421b0371298@linaro.org> To: Peter Griffin , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar Cc: Tudor Ambarus , Will McVicker , Roy Luo , kernel-team@android.com, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Andr=C3=A9_Draszik?= X-Mailer: b4 0.12.4 Pixel 6 (Oriole) has a USB-C connector that can act as host or device. The USB role is detected dynamically using a MAX77759 TCPCI controller, but since there is no driver for the MAX77759, the role is defaulted to peripheral, without any endpoints / ports. This allows Oriole to be configured as a gadget, e.g. using configfs. As PMIC regulators are not implemented yet, we rely on USB LDOs being enabled enabled by the bootloader. A placeholder regulator is used for now. Signed-off-by: Andr=C3=A9 Draszik --- arch/arm64/boot/dts/exynos/google/gs101-oriole.dts | 24 ++++++++++++++++++= ++++ 1 file changed, 24 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts b/arch/arm6= 4/boot/dts/exynos/google/gs101-oriole.dts index 6be15e990b65..03b2a6fdfdc4 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts +++ b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts @@ -53,6 +53,12 @@ button-power { wakeup-source; }; }; + + /* TODO: Remove this once PMIC is implemented */ + reg_placeholder: regulator-0 { + compatible =3D "regulator-fixed"; + regulator-name =3D "placeholder_reg"; + }; }; =20 &ext_24_5m { @@ -106,6 +112,24 @@ &serial_0 { status =3D "okay"; }; =20 +&usbdrd31 { + status =3D "okay"; + vdd10-supply =3D <®_placeholder>; + vdd33-supply =3D <®_placeholder>; +}; + +&usbdrd31_dwc3 { + dr_mode =3D "otg"; + usb-role-switch; + role-switch-default-mode =3D "peripheral"; + maximum-speed =3D "super-speed-plus"; + status =3D "okay"; +}; + +&usbdrd31_phy { + status =3D "okay"; +}; + &usi_uart { samsung,clkreq-on; /* needed for UART mode */ status =3D "okay"; --=20 2.44.0.769.g3c40516874-goog