/dts-v1/;
/ {
	model = "T-HEAD c910 ice";
	compatible = "thead,c910_ice";
	#address-cells = <2>;
	#size-cells = <2>;

	memory@0 {
		device_type = "memory";
		/*
		 * Total memory size: 4GB (0x00000000 0x100000000)
		 * 0x00200000 - 0x0e0000000: 3407MB for Linux system
		 * 0xe0000000 - 0x100000000:  512MB for GPU
		 */
		reg = <0x0 0x200000 0x0 0xdfe00000>;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;
		timebase-frequency = <3000000>;
		cpu@0 {
			device_type = "cpu";
			reg = <0>;
			status = "okay";
			compatible = "riscv";
			riscv,isa = "rv64imafdcsu";
			mmu-type = "riscv,sv39";
			cpu-freq = "1.2Ghz";
			cpu-icache = "64KB";
			cpu-dcache = "64KB";
			cpu-l2cache = "2MB";
			cpu-tlb = "1024 4-ways";
			cpu-cacheline = "64Bytes";
			cpu-vector = "0.7.1";
			cpu0_intc: interrupt-controller {
				#interrupt-cells = <1>;
				compatible = "riscv,cpu-intc";
				interrupt-controller;
			};
		};
		cpu@1 {
			device_type = "cpu";
			reg = <1>;
			status = "okay";
			compatible = "riscv";
			riscv,isa = "rv64imafdcsu";
			mmu-type = "riscv,sv39";
			cpu-freq = "1.2Ghz";
			cpu-icache = "64KB";
			cpu-dcache = "64KB";
			cpu-l2cache = "2MB";
			cpu-tlb = "1024 4-ways";
			cpu-cacheline = "64Bytes";
			cpu-vector = "0.7.1";
			cpu1_intc: interrupt-controller {
				#interrupt-cells = <1>;
				compatible = "riscv,cpu-intc";
				interrupt-controller;
			};
		};
	};

	soc {
		#address-cells = <2>;
		#size-cells = <2>;
		compatible = "simple-bus";
		ranges;

		reset: reset-sample {
			compatible = "thead,reset-sample";
			plic-delegate = <0x3 0xf01ffffc>;
			using-csr-reset;
			csr-copy = <
				0x7c0 0x7c1 0x7c2 0x7c3 0x7c5 0x7cc
				0x3b0 0x3b1 0x3b2 0x3b3
				0x3b4 0x3b5 0x3b6 0x3b7
				0x3a0
				>;
		};

		clint0: clint@3f4000000 {
			compatible = "riscv,clint0";
			interrupts-extended = <
				&cpu0_intc  3 &cpu0_intc  7
				&cpu1_intc  3 &cpu1_intc  7
				>;
			reg = <0x3 0xf4000000 0x0 0x04000000>;
			clint,has-no-64bit-mmio;
		};

		intc: interrupt-controller@3f0000000 {
			#interrupt-cells = <1>;
			compatible = "riscv,plic0";
			interrupt-controller;
			interrupts-extended = <
				&cpu0_intc  0xffffffff &cpu0_intc  9
				&cpu1_intc  0xffffffff &cpu1_intc  9
				>;
			reg = <0x3 0xf0000000 0x0 0x04000000>;
			reg-names = "control";
			riscv,max-priority = <7>;
			riscv,ndev = <80>;
		};

		dummy_apb: apb-clock {
			compatible = "fixed-clock";
			clock-frequency = <62500000>;
			clock-output-names = "dummy_apb";
			#clock-cells = <0>;
		};

		dummy_ahb: ahb-clock {
			compatible = "fixed-clock";
			clock-frequency = <250000000>;
			clock-output-names = "dummy_ahb";
			#clock-cells = <0>;
		};

		dummy_axi: axi-clock {
			compatible = "fixed-clock";
			clock-frequency = <500000000>;
			clock-output-names = "dummy_axi";
			#clock-cells = <0>;
		};

		dummy_gmac: gmac-clock {
			compatible = "fixed-clock";
			clock-frequency = <1000000000>;
			clock-output-names = "dummy_gmac";
			#clock-cells = <0>;
		};

		dummy_clk_sdio: dummy-clk-sdio {
			compatible = "fixed-clock";
			clock-frequency = <150000000>;
			clock-output-names = "dummy_clk_sdio";
			#clock-cells = <0>;
		};

		usb: dwc3@3fff10000 {
			compatible = "snps,dwc3";
			reg = <0x3 0xfff10000 0x0 0x10000>;
			interrupt-parent = <&intc>;
			interrupts = <44>;
			clocks = <&dummy_ahb>, <&dummy_ahb>, <&dummy_ahb>;
			clock-names = "ref", "bus_early", "suspend";
			maximum-speed = "super-speed";
			dr_mode = "peripheral";
			snps,usb3_lpm_capable;
			snps,dis_u3_susphy_quirk;
		};

		gpio0: gpio@3fff71000 {
			compatible = "snps,dw-apb-gpio";
			reg = <0x3 0xfff71000 0x0 0x1000>;
			#address-cells = <1>;
			#size-cells = <0>;

			/* GPIO0[0-31] */
			gpio0_porta: gpio0-controller@0 {
				compatible = "snps,dw-apb-gpio-port";
				gpio-controller;
				#gpio-cells = <2>;
				snps,nr-gpios = <32>;
				reg = <0>;

				interrupt-controller;
				#interrupt-cells = <2>;
				interrupt-parent = <&intc>;
				interrupts = <27>;
			};

			/* GPIO0[32-63] */
			gpio0_portb: gpio0-controller@1 {
				compatible = "snps,dw-apb-gpio-port";
				gpio-controller;
				#gpio-cells = <2>;
				snps,nr-gpios = <32>;
				reg = <1>;
			};
		};

		gpio1: gpio@3fff72000 {
			compatible = "snps,dw-apb-gpio";
			reg = <0x3 0xfff72000 0x0 0x1000>;
			#address-cells = <1>;
			#size-cells = <0>;

			/* GPIO1[0-31] */
			gpio1_porta: gpio1-controller@0 {
				compatible = "snps,dw-apb-gpio-port";
				gpio-controller;
				#gpio-cells = <2>;
				snps,nr-gpios = <32>;
				reg = <0>;
			};

			/* GPIO1[32-63] */
			gpio1_portb: gpio1-controller@1 {
				compatible = "snps,dw-apb-gpio-port";
				gpio-controller;
				#gpio-cells = <2>;
				snps,nr-gpios = <32>;
				reg = <1>;
			};

			/* GPIO1[64-95] */
			gpio1_portc: gpio1-controller@2 {
				compatible = "snps,dw-apb-gpio-port";
				gpio-controller;
				#gpio-cells = <2>;
				snps,nr-gpios = <32>;
				reg = <2>;
			};
		};

		gpio-leds {
			compatible = "gpio-leds";

			led0 { /* GPIO0[11] - UART2_TXD */
				label = "led0";
				gpios = <&gpio0_porta 11 1>;
				default-state = "off";
			};
		};

		gpio-keys {
			compatible = "gpio-keys";
			/* autorepeat; */

			key_0 { /* GPIO0[10] - UART2_RXD */
				gpios = <&gpio0_porta 10 1>;
				linux,code = <59>;
				label = "key_0";
			};
		};

		i2c@3fff74000 {
			#address-cells = <1>;
			#size-cells = <0>;
			compatible = "snps,designware-i2c-ice";
			reg = <0x3 0xfff74000 0x0 0x1000>;
			interrupts = <21>;
			interrupt-parent = <&intc>;
			clocks = <&dummy_apb>;
			clock-frequency = <400000>;

			eeprom@50 {
				compatible = "atmel,24c64";
				reg = <0x50>;
				pagesize = <32>;
			};

			goodix_ts@14 {
				#gpio-cells = <2>;
				compatible = "goodix,gt917s";
				reg = <0x14>;
				interrupt-parent = <&gpio0_porta>;
				interrupts = <31 0>;
				irq-gpios = <&gpio0_porta 31 0>;
				reset-gpios = <&gpio0_porta 30 0>;
				touchscreen-size-x = <720>;
				touchscreen-size-y = <1280>;
			};
		};

		serial@3fff73000 {
			compatible = "snps,dw-apb-uart";
			reg = <0x3 0xfff73000 0x0 0x400>;
			interrupt-parent = <&intc>;
			interrupts = <23>;
			clocks = <&dummy_apb>;
			clock-names = "baudclk";
			reg-shift = <2>;
			reg-io-width = <4>;
		};

		pmu: pmu {
			interrupt-parent = <&cpu0_intc>;
			interrupts = <17>;
			compatible = "riscv,c910_pmu";
		};

		dmac0: dmac@3fffd0000 {
			compatible = "snps,axi-dma-1.01a";
			reg = <0x3 0xfffd0000 0x0 0x1000>;
			interrupt-parent = <&intc>;
			interrupts = <65>;
			clocks = <&dummy_axi>, <&dummy_ahb>;
			clock-names = "core-clk", "cfgr-clk";

			dma-channels = <8>;
			snps,block-size = <65536 65536 65536 65536 65536 65536 65536 65536>;
			snps,priority = <0 1 2 3 4 5 6 7>;
			snps,dma-masters = <1>;
			snps,data-width = <4>;
			snps,axi-max-burst-len = <16>;

			status = "disabled";
		};

		sdhc0: sdhc0@3fffb0000 {
			compatible = "snps,dw-mshc";
			reg = <0x3 0xfffb0000 0x0 0x1000>;
			interrupt-parent = <&intc>;
			interrupts = <37>;
			clocks = <&dummy_clk_sdio>, <&dummy_clk_sdio>;
			clock-names = "ciu", "biu";
			num-slots = <1>;
			card-detect-delay = <200>;
			cap-mmc-highspeed;
			cap-cmd23;
			non-removable;
			bus-width = <8>;
		};

		sdhc1: sdhc1@3fffa0000 {
			compatible = "snps,dw-mshc";
			reg = <0x3 0xfffa0000 0x0 0x1000>;
			interrupt-parent = <&intc>;
			interrupts = <38>;
			clocks = <&dummy_clk_sdio>, <&dummy_clk_sdio>;
			clock-names = "ciu", "biu";
			num-slots = <1>;
			card-detect-delay = <200>;
			cap-sd-highspeed;
			bus-width = <4>;
		};

		stmmac_axi_setup: stmmac-axi-config {
			snps,wr_osr_lmt = <3>;
			snps,rd_osr_lmt = <3>;
			snps,blen = <16 8 4 0 0 0 0>;
		};

		gmac: ethernet@3fffc0000 {
			compatible = "thead,dwmac";
			reg = < 0x3 0xfffc0000 0x0 0x2000
				0x3 0xfe83025c 0x0 0x4
				0x3 0xfe83031c 0x0 0x4
				0x3 0xfff770c0 0x0 0x1c>;
			reg-names = "gmac", "phy_if_reg", "txclk_dir_reg", "clk_mgr_reg";
			interrupt-parent = <&intc>;
			interrupts = <40>;
			interrupt-names = "macirq";
			clocks = <&dummy_ahb>, <&dummy_gmac>;
			clock-names = "stmmaceth", "gmac_pll_clk";
			snps,pbl = <32>;
			snps,fixed-burst;
			snps,axi-config = <&stmmac_axi_setup>;

			phy-mode = "rgmii-id";
			rx-clk-delay = <0x1f>; /* for RGMII */
			tx-clk-delay = <0x1f>; /* for RGMII */

			phy-handle = <&eth_phy_0>;
			mdio0 {
				#address-cells = <1>;
				#size-cells = <0>;
				compatible = "snps,dwmac-mdio";

				eth_phy_0: ethernet-phy@0 {
					reg = <0>;
				};
			};
		};

		gpu: gpu@3fff27000 {
			compatible = "verisilicon,gc8000ul";
			reg = <0x3 0xfff27000 0x0 0x1000>;
			interrupt-parent = <&intc>;
			interrupts = <63>;
			contiguous-base = <0x0 0xe0000000>;
			contiguous-size = <0x0 0x20000000>;
		};

		watchdog: watchdog@3fffe3000 {
			compatible = "ice,ice-wdt";
			reg = <0x3 0xfffe3000 0x0 0x1000>;
			interrupts = <20>;
		};

		dpu: dpu@3fff28000 {
			compatible = "verisilicon,dc8000-fb";
			reg = <0x3 0xfff28000 0x0 0x8000>;
			interrupt-parent = <&intc>;
			interrupts = <64>;
		};
	};

	chosen {
		/* bootargs = "console=ttyS0,115200 crashkernel=256M-:128M c910_mmu_v1"; */
		/* linux,initrd-start = <0x2000000>; */
		/* linux,initrd-end = <0x17000000>; */
		bootargs = "console=ttyS0,115200 rdinit=/sbin/init root=/dev/mmcblk0p4 rw rootfstype=ext4 blkdevparts=mmcblk0:2M(table),2M(dtb),60M(kernel),-(rootfs) clk_ignore_unused loglevel=7 rootwait crashkernel=256M-:128M c910_mmu_v1";
		stdout-path = "serial0@3fff73000:115200";
	};
};