From bb94aa330b84a73d3c8a67a2a521a0edd1286a2e Mon Sep 17 00:00:00 2001 From: Han Gao Date: Fri, 3 Apr 2026 19:18:21 +0800 Subject: [PATCH 1/3] riscv: dts: spacemit: Enable i2c8 adapter for OrangePi RV2 The adapter is used to access the SpacemiT P1 PMIC present in this board. Signed-off-by: Han Gao Signed-off-by: Linux RISC-V bot --- arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts index 7b7331cb3c726f..93880ba7bdfec5 100644 --- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts +++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts @@ -87,6 +87,12 @@ status = "okay"; }; +&i2c8 { + pinctrl-0 = <&i2c8_cfg>; + pinctrl-names = "default"; + status = "okay"; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_2_cfg>; From 892b50d3954b5928802e11c7d8df74b55b68370c Mon Sep 17 00:00:00 2001 From: Han Gao Date: Fri, 3 Apr 2026 19:18:22 +0800 Subject: [PATCH 2/3] riscv: dts: spacemit: Define the P1 PMIC regulators for OrangePi RV2 Define the DC power input and the 4v power as fixed regulator supplies. Define the SpacemiT P1 PMIC voltage regulators and their constraints. Co-developed-by: Chukun Pan Signed-off-by: Chukun Pan Signed-off-by: Han Gao Signed-off-by: Linux RISC-V bot --- .../boot/dts/spacemit/k1-orangepi-rv2.dts | 131 ++++++++++++++++++ 1 file changed, 131 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts index 93880ba7bdfec5..98b1d47053d2e3 100644 --- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts +++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts @@ -23,6 +23,25 @@ stdout-path = "serial0"; }; + vcc_5v0: regulator-vcc-5v0 { + compatible = "regulator-fixed"; + regulator-name = "vcc_5v0"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + }; + + vcc4v0: regulator-vcc4v0 { + compatible = "regulator-fixed"; + regulator-name = "vcc4v0"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <4000000>; + regulator-max-microvolt = <4000000>; + vin-supply = <&vcc_5v0>; + }; + leds { compatible = "gpio-leds"; @@ -91,6 +110,118 @@ pinctrl-0 = <&i2c8_cfg>; pinctrl-names = "default"; status = "okay"; + + pmic@41 { + compatible = "spacemit,p1"; + reg = <0x41>; + interrupts = <64>; + vin1-supply = <&vcc4v0>; + vin2-supply = <&vcc4v0>; + vin3-supply = <&vcc4v0>; + vin4-supply = <&vcc4v0>; + vin5-supply = <&vcc4v0>; + vin6-supply = <&vcc4v0>; + aldoin-supply = <&vcc4v0>; + dldoin1-supply = <&buck5>; + dldoin2-supply = <&buck5>; + + regulators { + buck1 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3450000>; + regulator-ramp-delay = <5000>; + regulator-always-on; + }; + + buck2 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3450000>; + regulator-ramp-delay = <5000>; + regulator-always-on; + }; + + buck3_1v8: buck3 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <1800000>; + regulator-ramp-delay = <5000>; + regulator-always-on; + }; + + buck4_3v3: buck4 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3300000>; + regulator-ramp-delay = <5000>; + regulator-always-on; + }; + + buck5: buck5 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3450000>; + regulator-ramp-delay = <5000>; + regulator-always-on; + }; + + buck6 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3450000>; + regulator-ramp-delay = <5000>; + regulator-always-on; + }; + + aldo1 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3400000>; + regulator-boot-on; + }; + + aldo2 { + /* not connected */ + }; + + aldo3 { + /* not connected */ + }; + + aldo4 { + /* not connected */ + }; + + dldo1 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3400000>; + regulator-boot-on; + }; + + dldo2 { + /* not connected */ + }; + + dldo3 { + /* not connected */ + }; + + dldo4 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3400000>; + regulator-always-on; + }; + + dldo5 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3400000>; + }; + + dldo6 { + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3400000>; + regulator-always-on; + }; + + dldo7 { + /* not connected */ + }; + }; + }; }; &uart0 { From ab5978a75685e2b7c6c21fbce60f362c371518a3 Mon Sep 17 00:00:00 2001 From: Han Gao Date: Fri, 3 Apr 2026 19:18:23 +0800 Subject: [PATCH 3/3] riscv: dts: spacemit: Enable USB3.0/PCIe on OrangePi RV2 Enable the DWC3 USB 3.0 controller and its associated usbphy2 on the OrangePi RV2 board. The board utilizes a Genesys Logic GL3523 USB3.0 hub. Define a 3.3v fixed voltage regulator for PCIe and enable PCIe and PHY-related Device Tree nodes for the OrangePi RV2. Co-developed-by: Chukun Pan Signed-off-by: Chukun Pan Signed-off-by: Han Gao Signed-off-by: Linux RISC-V bot --- .../boot/dts/spacemit/k1-orangepi-rv2.dts | 69 +++++++++++++++++++ 1 file changed, 69 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts index 98b1d47053d2e3..5d4e278695c3c8 100644 --- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts +++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts @@ -23,6 +23,16 @@ stdout-path = "serial0"; }; + pcie_vcc3v3: regulator-pcie-vcc3v3 { + compatible = "regulator-fixed"; + enable-active-high; + gpios = <&gpio K1_GPIO(116) GPIO_ACTIVE_HIGH>; + regulator-name = "pcie_vcc3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&vcc_5v0>; + }; + vcc_5v0: regulator-vcc-5v0 { compatible = "regulator-fixed"; regulator-name = "vcc_5v0"; @@ -54,6 +64,10 @@ }; }; +&combo_phy { + status = "okay"; +}; + ð0 { phy-handle = <&rgmii0>; phy-mode = "rgmii-id"; @@ -224,8 +238,63 @@ }; }; +&pcie1_phy { + pinctrl-names = "default"; + pinctrl-0 = <&pcie1_3_cfg>; + status = "okay"; +}; + +&pcie1_port { + phys = <&pcie1_phy>; + vpcie3v3-supply = <&pcie_vcc3v3>; +}; + +&pcie1 { + vpcie3v3-supply = <&pcie_vcc3v3>; + status = "okay"; +}; + +&pcie2_phy { + pinctrl-names = "default"; + pinctrl-0 = <&pcie2_4_cfg>; + status = "okay"; +}; + +&pcie2_port { + phys = <&pcie2_phy>; +}; + +&pcie2 { + vpcie3v3-supply = <&pcie_vcc3v3>; + status = "okay"; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_2_cfg>; status = "okay"; }; + +&usbphy2 { + status = "okay"; +}; + +&usb_dwc3 { + dr_mode = "host"; + #address-cells = <1>; + #size-cells = <0>; + vdd-supply = <&vcc_5v0>; + status = "okay"; + + hub_2_0: hub@1 { + compatible = "usb5e3,610"; + reg = <0x1>; + peer-hub = <&hub_3_0>; + }; + + hub_3_0: hub@2 { + compatible = "usb5e3,620"; + reg = <0x2>; + peer-hub = <&hub_2_0>; + }; +};