arm64: dts: Add ZTE ZX296718 SoC dts and Makefile

Add device tree support for ZX296718 SoC and evaluation board based
on it. Also document new values.

Signed-off-by: Jun Nie <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

Documentation/devicetree/bindings/arm/zte.txt

···
 
 Bus matrix required properties:
       - compatible = "zte,zx-bus-matrix"
+
+
+---------------------------------------
+-  ZX296718 SoC:
+    Required root node properties:
+      - compatible = "zte,zx296718"
+
+ZX296718 EVB board:
+      - "zte,zx296718-evb"
+
+System management required properties:
+      - compatible = "zte,zx296718-aon-sysctrl"
+      - compatible = "zte,zx296718-sysctrl"
+
+Example:
+aon_sysctrl: aon-sysctrl@116000 {
+	compatible = "zte,zx296718-aon-sysctrl", "syscon";
+	reg = <0x116000 0x1000>;
+};
+
+sysctrl: sysctrl@1463000 {
+	compatible = "zte,zx296718-sysctrl", "syscon";
+	reg = <0x1463000 0x1000>;
+};

arch/arm64/boot/dts/Makefile

···
 dts-dirs += sprd
 dts-dirs += xilinx
 dts-dirs += lg
+dts-dirs += zte
 
 subdir-y	:= $(dts-dirs)
 

arch/arm64/boot/dts/zte/Makefile

···
+dtb-$(CONFIG_ARCH_ZX) += zx296718-evb.dtb
+
+always		:= $(dtb-y)
+subdir-y	:= $(dts-dirs)
+clean-files	:= *.dtb

arch/arm64/boot/dts/zte/zx296718-evb.dts

···
+/*
+ * Copyright 2016 ZTE Corporation.
+ * Copyright 2016 Linaro Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This library is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "zx296718.dtsi"
+
+/ {
+	model = "ZTE zx296718 evaluation board";
+	compatible = "zte,zx296718-evb", "zte,zx296718";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x40000000>;
+	};
+
+};
+
+&uart0 {
+	status = "okay";
+};

arch/arm64/boot/dts/zte/zx296718.dtsi

···
+/*
+ * Copyright 2016 ZTE Corporation.
+ * Copyright 2016 Linaro Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This library is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	compatible = "zte,zx296718";
+	#address-cells = <1>;
+	#size-cells = <1>;
+	interrupt-parent = <&gic>;
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	cpus {
+		#address-cells = <2>;
+		#size-cells = <0>;
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu0>;
+				};
+				core1 {
+					cpu = <&cpu1>;
+				};
+				core2 {
+					cpu = <&cpu2>;
+				};
+				core3 {
+					cpu = <&cpu3>;
+				};
+			};
+		};
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53","arm,armv8";
+			reg = <0x0 0x0>;
+			enable-method = "psci";
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53","arm,armv8";
+			reg = <0x0 0x1>;
+			enable-method = "psci";
+		};
+
+		cpu2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53","arm,armv8";
+			reg = <0x0 0x2>;
+			enable-method = "psci";
+		};
+
+		cpu3: cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53","arm,armv8";
+			reg = <0x0 0x3>;
+			enable-method = "psci";
+		};
+	};
+
+	clk24k: clk-24k {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24000>;
+		clock-output-names = "rtcclk";
+	};
+
+	osc32k: clk-osc32k {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <32000>;
+		clock-output-names = "osc32k";
+	};
+
+	osc12m: clk-osc12m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <12000000>;
+		clock-output-names = "osc12m";
+	};
+
+	osc24m: clk-osc24m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24000000>;
+		clock-output-names = "osc24m";
+	};
+
+	osc25m: clk-osc25m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <25000000>;
+		clock-output-names = "osc25m";
+	};
+
+	osc60m: clk-osc60m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <60000000>;
+		clock-output-names = "osc60m";
+	};
+
+	osc99m: clk-osc99m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <99000000>;
+		clock-output-names = "osc99m";
+	};
+
+	osc125m: clk-osc125m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <125000000>;
+		clock-output-names = "osc125m";
+	};
+
+	osc198m: clk-osc198m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <198000000>;
+		clock-output-names = "osc198m";
+	};
+
+	pll_audio: clk-pll-884m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <884000000>;
+		clock-output-names = "pll_audio";
+	};
+
+	pll_ddr: clk-pll-932m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <932000000>;
+		clock-output-names = "pll_ddr";
+	};
+
+	pll_hsic: clk-pll-960m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <960000000>;
+		clock-output-names = "pll_hsic";
+	};
+
+	pll_mac: clk-pll-1000m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <1000000000>;
+		clock-output-names = "pll_mac";
+	};
+
+	pll_vga: clk-pll-1073m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <1073000000>;
+		clock-output-names = "pll_vga";
+	};
+
+	pll_mm0: clk-pll-1188m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <1188000000>;
+		clock-output-names = "pll_mm0";
+	};
+
+	pll_mm1: clk-pll-1296m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <1296000000>;
+		clock-output-names = "pll_mm1";
+	};
+
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+	};
+
+	pmu {
+		compatible = "arm,cortex-a53-pmu";
+		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	gic: interrupt-controller@2a00000 {
+		compatible = "arm,gic-v3";
+		#interrupt-cells = <3>;
+		#address-cells = <0>;
+		#redistributor-regions = <6>;
+		redistributor-stride = <0x0 0x40000>;
+		interrupt-controller;
+		reg = <0x02a00000 0x10000>,
+		      <0x02b00000 0x20000>,
+		      <0x02b20000 0x20000>,
+		      <0x02b40000 0x20000>,
+		      <0x02b60000 0x20000>,
+		      <0x02b80000 0x20000>,
+		      <0x02ba0000 0x20000>;
+		interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "simple-bus";
+		ranges;
+
+		aon_sysctrl: aon-sysctrl@116000 {
+			compatible = "zte,zx296718-aon-sysctrl", "syscon";
+			reg = <0x116000 0x1000>;
+		};
+
+		uart0: uart@11f000 {
+			compatible = "arm,pl011", "arm,primecell";
+			arm,primecell-periphid = <0x001feffe>;
+			reg = <0x11f000 0x1000>;
+			interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&osc24m>;
+			clock-names = "apb_pclk";
+			status = "disabled";
+		};
+
+		dma: dma-controller@1460000 {
+			compatible = "zte,zx296702-dma";
+			reg = <0x01460000 0x1000>;
+			interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&osc24m>;
+			clock-names = "dmaclk";
+			#dma-cells = <1>;
+			dma-channels = <32>;
+			dma-requests = <32>;
+		};
+
+		sysctrl: sysctrl@1463000 {
+			compatible = "zte,zx296718-sysctrl", "syscon";
+			reg = <0x1463000 0x1000>;
+		};
+	};
+};