From f04ee88cb78d57ece8906ca10dc638216cf77e50 Mon Sep 17 00:00:00 2001 From: Han Gao Date: Tue, 7 Apr 2026 23:28:14 +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. Tested-by: Vincent Legoll # OrangePi-RV2 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 6f9ddac1d6cbb8e6316d3ba5191dd2578121feb4 Mon Sep 17 00:00:00 2001 From: Han Gao Date: Tue, 7 Apr 2026 23:28:15 +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 Tested-by: Vincent Legoll # OrangePi-RV2 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 c6cd01848926cae5f87e12aa64fc546f0fc4c424 Mon Sep 17 00:00:00 2001 From: Han Gao Date: Tue, 7 Apr 2026 23:28:16 +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 Tested-by: Vincent Legoll # OrangePi-RV2 Signed-off-by: Han Gao Signed-off-by: Linux RISC-V bot --- .../boot/dts/spacemit/k1-orangepi-rv2.dts | 80 +++++++++++++++++++ 1 file changed, 80 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..3a829e3c9cbcd4 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"; @@ -42,6 +52,16 @@ vin-supply = <&vcc_5v0>; }; + vcc5v0_usb30: regulator-vcc5v0-usb30 { + compatible = "regulator-fixed"; + enable-active-high; + gpios = <&gpio K1_GPIO(123) GPIO_ACTIVE_HIGH>; + regulator-name = "vcc5v0_usb30"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + vin-supply = <&vcc_5v0>; + }; + leds { compatible = "gpio-leds"; @@ -54,6 +74,10 @@ }; }; +&combo_phy { + status = "okay"; +}; + ð0 { phy-handle = <&rgmii0>; phy-mode = "rgmii-id"; @@ -224,8 +248,64 @@ }; }; +&pcie1_phy { + pinctrl-names = "default"; + pinctrl-0 = <&pcie1_3_cfg>; + status = "okay"; +}; + +&pcie1_port { + phys = <&pcie1_phy>; + vpcie3v3-supply = <&pcie_vcc3v3>; +}; + +&pcie1 { + status = "okay"; +}; + +&pcie2_phy { + pinctrl-names = "default"; + pinctrl-0 = <&pcie2_4_cfg>; + status = "okay"; +}; + +&pcie2_port { + phys = <&pcie2_phy>; + vpcie3v3-supply = <&pcie_vcc3v3>; +}; + +&pcie2 { + 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>; + vbus-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>; + }; +};