ARM: dts: rockchip: Add Edgeble RV1126 Neural Compute Module 2(Neu2)

Neural Compute Module 2(Neu2) is a 96boards SoM-CB compute module
based on Rockchip RV1126 from Edgeble AI.

General features:
- Rockchip RV1126
- 2/4GB LPDDR4
- 8/16/32GB eMMC
- 2x MIPI CSI2 FPC connector
- Fn-link 8223A-SR WiFi/BT

Industrial grade (-40 °C to +85 °C) version of the same class of module
called Neu2k powered with Rockchip RV1126K.

Neu2 needs to mount on top of Edgeble IO boards for creating complete
platform solutions.

Add support for it.

Signed-off-by: Jagan Teki <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Heiko Stuebner <[e-mail]>

arch/arm/boot/dts/rv1126-edgeble-neu2.dtsi

···
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2020 Rockchip Electronics Co., Ltd.
+ * Copyright (c) 2022 Edgeble AI Technologies Pvt. Ltd.
+ */
+
+/ {
+	compatible = "edgeble,neural-compute-module-2", "rockchip,rv1126";
+
+	aliases {
+		mmc0 = &emmc;
+	};
+
+	vcc5v0_sys: vcc5v0-sys-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	vccio_flash: vccio-flash-regulator {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio0 RK_PB3 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&flash_vol_sel>;
+		regulator-name = "vccio_flash";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vcc_3v3>;
+	};
+
+	sdio_pwrseq: pwrseq-sdio {
+		compatible = "mmc-pwrseq-simple";
+		clocks = <&rk809 1>;
+		clock-names = "ext_clock";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_enable_h>;
+		reset-gpios = <&gpio1 RK_PD0 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&emmc {
+	bus-width = <8>;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_bus8 &emmc_cmd &emmc_clk &emmc_rstnout>;
+	rockchip,default-sample-phase = <90>;
+	vmmc-supply = <&vcc_3v3>;
+	vqmmc-supply = <&vccio_flash>;
+	status = "okay";
+};
+
+&i2c0 {
+	clock-frequency = <400000>;
+	status = "okay";
+
+	rk809: pmic@20 {
+		compatible = "rockchip,rk809";
+		reg = <0x20>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PB1 IRQ_TYPE_LEVEL_LOW>;
+		#clock-cells = <1>;
+		clock-output-names = "rk808-clkout1", "rk808-clkout2";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pmic_int_l>;
+		rockchip,system-power-controller;
+		wakeup-source;
+
+		vcc1-supply = <&vcc5v0_sys>;
+		vcc2-supply = <&vcc5v0_sys>;
+		vcc3-supply = <&vcc5v0_sys>;
+		vcc4-supply = <&vcc5v0_sys>;
+		vcc5-supply = <&vcc_buck5>;
+		vcc6-supply = <&vcc_buck5>;
+		vcc7-supply = <&vcc5v0_sys>;
+		vcc8-supply = <&vcc3v3_sys>;
+		vcc9-supply = <&vcc5v0_sys>;
+
+		regulators {
+			vdd_npu_vepu: DCDC_REG1 {
+				regulator-name = "vdd_npu_vepu";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-initial-mode = <0x2>;
+				regulator-min-microvolt = <650000>;
+				regulator-max-microvolt = <950000>;
+				regulator-ramp-delay = <6001>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdd_arm: DCDC_REG2 {
+				regulator-name = "vdd_arm";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-initial-mode = <0x2>;
+				regulator-min-microvolt = <725000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-ramp-delay = <6001>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcc_ddr: DCDC_REG3 {
+				regulator-name = "vcc_ddr";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-initial-mode = <0x2>;
+				regulator-state-mem {
+					regulator-on-in-suspend;
+				};
+			};
+
+			vcc3v3_sys: DCDC_REG4 {
+				regulator-name = "vcc3v3_sys";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-initial-mode = <0x2>;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+				};
+			};
+
+			vcc_buck5: DCDC_REG5 {
+				regulator-name = "vcc_buck5";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <2200000>;
+				regulator-max-microvolt = <2200000>;
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <2200000>;
+				};
+			};
+
+			vcc_0v8: LDO_REG1 {
+				regulator-name = "vcc_0v8";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <800000>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcc1v8_pmu: LDO_REG2 {
+				regulator-name = "vcc1v8_pmu";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vdd0v8_pmu: LDO_REG3 {
+				regulator-name = "vcc0v8_pmu";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <800000>;
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <800000>;
+				};
+			};
+
+			vcc_1v8: LDO_REG4 {
+				regulator-name = "vcc_1v8";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vcc_dovdd: LDO_REG5 {
+				regulator-name = "vcc_dovdd";
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcc_dvdd: LDO_REG6 {
+				regulator-name = "vcc_dvdd";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcc_avdd: LDO_REG7 {
+				regulator-name = "vcc_avdd";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vccio_sd: LDO_REG8 {
+				regulator-name = "vccio_sd";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcc3v3_sd: LDO_REG9 {
+				regulator-name = "vcc3v3_sd";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcc_5v0: SWITCH_REG1 {
+				regulator-name = "vcc_5v0";
+			};
+
+			vcc_3v3: SWITCH_REG2 {
+				regulator-name = "vcc_3v3";
+				regulator-always-on;
+				regulator-boot-on;
+			};
+		};
+	};
+};
+
+&pinctrl {
+	bt {
+		bt_enable: bt-enable {
+			rockchip,pins = <3 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	flash {
+		flash_vol_sel: flash-vol-sel {
+			rockchip,pins = <0 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	pmic {
+		pmic_int_l: pmic-int-l {
+			rockchip,pins = <0 RK_PB1 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	wifi {
+		wifi_enable_h: wifi-enable-h {
+			rockchip,pins = <1 RK_PD0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
+
+&pmu_io_domains {
+	pmuio0-supply = <&vcc1v8_pmu>;
+	pmuio1-supply = <&vcc3v3_sys>;
+	vccio1-supply = <&vccio_flash>;
+	vccio2-supply = <&vccio_sd>;
+	vccio3-supply = <&vcc_1v8>;
+	vccio4-supply = <&vcc_dovdd>;
+	vccio5-supply = <&vcc_1v8>;
+	vccio6-supply = <&vcc_1v8>;
+	vccio7-supply = <&vcc_dovdd>;
+	status = "okay";
+};
+
+&saradc {
+	vref-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
+&sdio {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	keep-power-in-suspend;
+	max-frequency = <100000000>;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc1_clk &sdmmc1_cmd &sdmmc1_bus4>;
+	rockchip,default-sample-phase = <90>;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc3v3_sys>;
+	vqmmc-supply = <&vcc_1v8>;
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_xfer &uart0_ctsn &uart0_rtsn>;
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,qca9377-bt";
+		clocks = <&rk809 1>;
+		enable-gpios = <&gpio3 RK_PA5 GPIO_ACTIVE_HIGH>; /* BT_RST */
+		max-speed = <2000000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_enable>;
+		vddxo-supply = <&vcc3v3_sys>;
+		vddio-supply = <&vcc_1v8>;
+	};
+};