[PATCH v7 1/6] MIPS: Ingenic: Initial X1000 support.

[åçæ (Zhou Yanjie)]

Support the Ingenic X1000 SoC using the code under arch/mips/jz4740.
This is left unselectable in Kconfig until a X1000 based board is
added in a later commit.

Signed-off-by: åçæ (Zhou Yanjie) <zhouyanjie@xxxxxxxxxxxxxx>
---

Notes:
    v1->v2:
    Rebase on top of mips-next, use ingenic-timer driver
    for system timer and clocksource.
    
    v2->v3:
    Drop the 'apb' node.
    
    v3->v4:
    Adjust the node order to make it consistent with
    other Ingenic boards.
    
    v4->v5:
    No change.
    
    v5->v6:
    No change.
    
    v6->v7:
    Change my Signed-off-by from "Zhou Yanjie <zhouyanjie@xxxxxxxx>"
    to "åçæ (Zhou Yanjie) <zhouyanjie@xxxxxxxxxxxxxx>" because
    the old mailbox is in an unstable state.

 arch/mips/boot/dts/ingenic/x1000.dtsi | 176 ++++++++++++++++++++++++++++++++++
 arch/mips/jz4740/Kconfig              |   6 ++
 2 files changed, 182 insertions(+)
 create mode 100644 arch/mips/boot/dts/ingenic/x1000.dtsi

diff --git a/arch/mips/boot/dts/ingenic/x1000.dtsi b/arch/mips/boot/dts/ingenic/x1000.dtsi
new file mode 100644
index 00000000..13a6c9ff
--- /dev/null
+++ b/arch/mips/boot/dts/ingenic/x1000.dtsi
@@ -0,0 +1,176 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <dt-bindings/clock/x1000-cgu.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "ingenic,x1000", "ingenic,x1000e";
+
+	cpuintc: interrupt-controller {
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		compatible = "mti,cpu-interrupt-controller";
+	};
+
+	intc: interrupt-controller@10001000 {
+		compatible = "ingenic,x1000-intc", "ingenic,jz4780-intc";
+		reg = <0x10001000 0x50>;
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&cpuintc>;
+		interrupts = <2>;
+	};
+
+	exclk: ext {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+	};
+
+	rtclk: rtc {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <32768>;
+	};
+
+	cgu: x1000-cgu@10000000 {
+		compatible = "ingenic,x1000-cgu";
+		reg = <0x10000000 0x100>;
+
+		#clock-cells = <1>;
+
+		clocks = <&exclk>, <&rtclk>;
+		clock-names = "ext", "rtc";
+	};
+
+	tcu: timer@10002000 {
+		compatible = "ingenic,x1000-tcu",
+				 "ingenic,jz4770-tcu",
+				 "simple-mfd";
+		reg = <0x10002000 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x10002000 0x1000>;
+
+		#clock-cells = <1>;
+
+		clocks = <&cgu X1000_CLK_RTCLK
+			  &cgu X1000_CLK_EXCLK
+			  &cgu X1000_CLK_PCLK>;
+		clock-names = "rtc", "ext", "pclk";
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <27 26 25>;
+	};
+
+	pinctrl: pin-controller@10010000 {
+		compatible = "ingenic,x1000-pinctrl";
+		reg = <0x10010000 0x800>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gpa: gpio@0 {
+			compatible = "ingenic,x1000-gpio";
+			reg = <0>;
+
+			gpio-controller;
+			gpio-ranges = <&pinctrl 0 0 32>;
+			#gpio-cells = <2>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&intc>;
+			interrupts = <17>;
+		};
+
+		gpb: gpio@1 {
+			compatible = "ingenic,x1000-gpio";
+			reg = <1>;
+
+			gpio-controller;
+			gpio-ranges = <&pinctrl 0 32 32>;
+			#gpio-cells = <2>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&intc>;
+			interrupts = <16>;
+		};
+
+		gpc: gpio@2 {
+			compatible = "ingenic,x1000-gpio";
+			reg = <2>;
+
+			gpio-controller;
+			gpio-ranges = <&pinctrl 0 64 32>;
+			#gpio-cells = <2>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&intc>;
+			interrupts = <15>;
+		};
+
+		gpd: gpio@3 {
+			compatible = "ingenic,x1000-gpio";
+			reg = <3>;
+
+			gpio-controller;
+			gpio-ranges = <&pinctrl 0 96 32>;
+			#gpio-cells = <2>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&intc>;
+			interrupts = <14>;
+		};
+	};
+
+	uart0: serial@10030000 {
+		compatible = "ingenic,x1000-uart";
+		reg = <0x10030000 0x100>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <51>;
+
+		clocks = <&exclk>, <&cgu X1000_CLK_UART0>;
+		clock-names = "baud", "module";
+
+		status = "disabled";
+	};
+
+	uart1: serial@10031000 {
+		compatible = "ingenic,x1000-uart";
+		reg = <0x10031000 0x100>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <50>;
+
+		clocks = <&exclk>, <&cgu X1000_CLK_UART1>;
+		clock-names = "baud", "module";
+
+		status = "disabled";
+	};
+
+	uart2: serial@10032000 {
+		compatible = "ingenic,x1000-uart";
+		reg = <0x10032000 0x100>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <49>;
+
+		clocks = <&exclk>, <&cgu X1000_CLK_UART2>;
+		clock-names = "baud", "module";
+
+		status = "disabled";
+	};
+};
diff --git a/arch/mips/jz4740/Kconfig b/arch/mips/jz4740/Kconfig
index 4dd0c44..6b96844 100644
--- a/arch/mips/jz4740/Kconfig
+++ b/arch/mips/jz4740/Kconfig
@@ -33,3 +33,9 @@ config MACH_JZ4780
 	select MIPS_CPU_SCACHE
 	select SYS_HAS_CPU_MIPS32_R2
 	select SYS_SUPPORTS_HIGHMEM
+
+config MACH_X1000
+	bool
+	select MIPS_CPU_SCACHE
+	select SYS_HAS_CPU_MIPS32_R2
+	select SYS_SUPPORTS_HIGHMEM
-- 
2.7.4