linux/arch/mips/boot/dts/mscc/luton.dtsi
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   1// SPDX-License-Identifier: (GPL-2.0 OR MIT)
   2/* Copyright (c) 2020 Microsemi Corporation */
   3
   4/ {
   5        #address-cells = <1>;
   6        #size-cells = <1>;
   7        compatible = "mscc,luton";
   8
   9        cpus {
  10                #address-cells = <1>;
  11                #size-cells = <0>;
  12
  13                cpu@0 {
  14                        compatible = "mips,mips24KEc";
  15                        device_type = "cpu";
  16                        clocks = <&cpu_clk>;
  17                        reg = <0>;
  18                };
  19        };
  20
  21        aliases {
  22                serial0 = &uart0;
  23        };
  24
  25        cpuintc: interrupt-controller {
  26                #address-cells = <0>;
  27                #interrupt-cells = <1>;
  28                interrupt-controller;
  29                compatible = "mti,cpu-interrupt-controller";
  30        };
  31
  32        cpu_clk: cpu-clock {
  33                compatible = "fixed-clock";
  34                #clock-cells = <0>;
  35                clock-frequency = <416666666>;
  36        };
  37
  38        ahb_clk: ahb-clk {
  39                compatible = "fixed-factor-clock";
  40                #clock-cells = <0>;
  41                clocks = <&cpu_clk>;
  42                clock-div = <2>;
  43                clock-mult = <1>;
  44        };
  45
  46        ahb@60000000 {
  47                compatible = "simple-bus";
  48                #address-cells = <1>;
  49                #size-cells = <1>;
  50                ranges = <0 0x60000000 0x20000000>;
  51
  52                interrupt-parent = <&intc>;
  53
  54                cpu_ctrl: syscon@10000000 {
  55                        compatible = "mscc,ocelot-cpu-syscon", "syscon";
  56                        reg = <0x10000000 0x2c>;
  57                };
  58
  59                intc: interrupt-controller@10000084 {
  60                        compatible = "mscc,luton-icpu-intr";
  61                        reg = <0x10000084 0x70>;
  62                        #interrupt-cells = <1>;
  63                        interrupt-controller;
  64                        interrupt-parent = <&cpuintc>;
  65                        interrupts = <2>;
  66                };
  67
  68                uart0: serial@10100000 {
  69                        pinctrl-0 = <&uart_pins>;
  70                        pinctrl-names = "default";
  71                        compatible = "ns16550a";
  72                        reg = <0x10100000 0x20>;
  73                        interrupts = <6>;
  74                        clocks = <&ahb_clk>;
  75                        reg-io-width = <4>;
  76                        reg-shift = <2>;
  77
  78                        status = "disabled";
  79                };
  80
  81                i2c0: i2c@10100400 {
  82                        compatible = "mscc,ocelot-i2c", "snps,designware-i2c";
  83                        pinctrl-0 = <&i2c_pins>;
  84                        pinctrl-names = "default";
  85                        reg = <0x10100400 0x100>, <0x100002a4 0x8>;
  86                        #address-cells = <1>;
  87                        #size-cells = <0>;
  88                        interrupts = <11>;
  89                        clocks = <&ahb_clk>;
  90
  91                        status = "disabled";
  92                };
  93
  94                gpio: pinctrl@70068 {
  95                        compatible = "mscc,luton-pinctrl";
  96                        reg = <0x70068 0x28>;
  97                        gpio-controller;
  98                        #gpio-cells = <2>;
  99                        gpio-ranges = <&gpio 0 0 32>;
 100                        interrupt-controller;
 101                        interrupts = <13>;
 102                        #interrupt-cells = <2>;
 103
 104                        i2c_pins: i2c-pins {
 105                                pins = "GPIO_5", "GPIO_6";
 106                                function = "twi";
 107                        };
 108
 109                        uart_pins: uart-pins {
 110                                pins = "GPIO_30", "GPIO_31";
 111                                function = "uart";
 112                        };
 113
 114                };
 115        };
 116};
 117