MIPS: Ingenic: Add YSH & ATIL CU Neo board support.

Add a device tree and a defconfig for the Ingenic X1830 based
YSH & ATIL CU Neo board.

Tested-by: 周正 (Zhou Zheng) <sernia.zhou@foxmail.com>
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/boot/dts/ingenic/Makefile

@@ -4,5 +4,6 @@ dtb-$(CONFIG_JZ4740_RS90)	+= rs90.dtb
 dtb-$(CONFIG_JZ4770_GCW0)	+= gcw0.dtb
 dtb-$(CONFIG_JZ4780_CI20)	+= ci20.dtb
 dtb-$(CONFIG_X1000_CU1000_NEO)	+= cu1000-neo.dtb
+dtb-$(CONFIG_X1830_CU1830_NEO)	+= cu1830-neo.dtb
 
 obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))

arch/mips/boot/dts/ingenic/cu1830-neo.dts

@@ -0,0 +1,168 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "x1830.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clock/ingenic,tcu.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "yna,cu1830-neo", "ingenic,x1830";
+	model = "YSH & ATIL General Board CU1830-Neo";
+
+	aliases {
+		serial1 = &uart1;
+	};
+
+	chosen {
+		stdout-path = "serial1:115200n8";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x0 0x08000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led-0 {
+			gpios = <&gpc 17 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "mmc0";
+		};
+	};
+
+	wlan_pwrseq: msc1-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+
+		reset-gpios = <&gpc 13 GPIO_ACTIVE_LOW>;
+		post-power-on-delay-ms = <200>;
+	};
+};
+
+&exclk {
+	clock-frequency = <24000000>;
+};
+
+&tcu {
+	/* 1500 kHz for the system timer and clocksource */
+	assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER2>;
+	assigned-clock-rates = <1500000>, <1500000>;
+
+	/* Use channel #0 for the system timer channel #2 for the clocksource */
+	ingenic,pwm-channels-mask = <0xfa>;
+};
+
+&uart1 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_uart1>;
+};
+
+&i2c0 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_i2c0>;
+
+	ads7830: adc@48 {
+		compatible = "ti,ads7830";
+		reg = <0x48>;
+	};
+};
+
+&msc0 {
+	status = "okay";
+
+	bus-width = <4>;
+	max-frequency = <50000000>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_msc0>;
+
+	non-removable;
+};
+
+&msc1 {
+	status = "okay";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+	bus-width = <4>;
+	max-frequency = <50000000>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_msc1>;
+
+	non-removable;
+
+	mmc-pwrseq = <&wlan_pwrseq>;
+
+	ap6212a: wifi@1 {
+		compatible = "brcm,bcm4329-fmac";
+		reg = <1>;
+
+		interrupt-parent = <&gpc>;
+		interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-names = "host-wake";
+
+		brcm,drive-strength = <10>;
+	};
+};
+
+&mac {
+	status = "okay";
+
+	phy-mode = "rmii";
+	phy-handle = <&ip101gr>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_mac>;
+
+	snps,reset-gpio = <&gpb 28 GPIO_ACTIVE_LOW>; /* PB28 */
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 10000 30000>;
+};
+
+&mdio {
+	status = "okay";
+
+	ip101gr: ethernet-phy@0 {
+		compatible = "ethernet-phy-id0243.0c54", "ethernet-phy-ieee802.3-c22";
+		reg = <0>;
+	};
+};
+
+&pinctrl {
+	pins_uart1: uart1 {
+		function = "uart1";
+		groups = "uart1-data";
+		bias-pull-up;
+	};
+
+	pins_i2c0: i2c0 {
+		function = "i2c0";
+		groups = "i2c0-data";
+		bias-pull-up;
+	};
+
+	pins_msc0: msc0 {
+		function = "mmc0";
+		groups = "mmc0-1bit", "mmc0-4bit";
+		bias-disable;
+	};
+
+	pins_msc1: msc1 {
+		function = "mmc1";
+		groups = "mmc1-1bit", "mmc1-4bit";
+		bias-disable;
+	};
+
+	pins_mac: mac {
+		function = "mac";
+		groups = "mac";
+		bias-disable;
+	};
+};