From e62450d356e1c679e9dc83f35fc3eb21db212100 Mon Sep 17 00:00:00 2001 From: Han Gao Date: Fri, 3 Apr 2026 20:37:23 +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..57ec1cc32b03d7 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-names = "default"; + pinctrl-0 = <&i2c8_cfg>; + status = "okay"; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_2_cfg>; From 5146313b55f090fae45d0d4d4b4b0e63a63aa066 Mon Sep 17 00:00:00 2001 From: Han Gao Date: Fri, 3 Apr 2026 20:37:24 +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 57ec1cc32b03d7..f7a1dadaa95f7f 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-names = "default"; pinctrl-0 = <&i2c8_cfg>; 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 67f6429b8b0483972d2875847741df07fb92f16e Mon Sep 17 00:00:00 2001 From: Han Gao Date: Fri, 3 Apr 2026 20:37:25 +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 | 81 +++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts index f7a1dadaa95f7f..3679a6cb110ec6 100644 --- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts +++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts @@ -23,6 +23,15 @@ 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>; + }; + vcc_5v0: regulator-vcc-5v0 { compatible = "regulator-fixed"; regulator-name = "vcc_5v0"; @@ -42,6 +51,16 @@ vin-supply = <&vcc_5v0>; }; + vcc5v0_usb30: regulator-vcc5v0-usb30 { + compatible = "regulator-fixed"; + regulator-name = "vcc5v0_usb30"; + enable-active-high; + gpios = <&gpio K1_GPIO(123) GPIO_ACTIVE_HIGH>; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + vin-supply = <&vcc_5v0>; + }; + leds { compatible = "gpio-leds"; @@ -54,6 +73,10 @@ }; }; +&combo_phy { + status = "okay"; +}; + ð0 { phy-handle = <&rgmii0>; phy-mode = "rgmii-id"; @@ -224,8 +247,66 @@ }; }; +&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>; + vpcie3v3-supply = <&pcie_vcc3v3>; +}; + +&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 = <&vcc5v0_usb30>; + status = "okay"; + + hub_2_0: hub@1 { + compatible = "usb5e3,610"; + reg = <0x1>; + peer-hub = <&hub_3_0>; + vdd-supply = <&vcc_5v0>; + }; + + hub_3_0: hub@2 { + compatible = "usb5e3,620"; + reg = <0x2>; + peer-hub = <&hub_2_0>; + vdd-supply = <&vcc_5v0>; + }; +};