arch/arc/boot/dts/nsim_hs_idu.dts

   1 /*
   2  * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8 /dts-v1/;
   9
  10 /include/ "skeleton.dtsi"
  11
  12 / {
  13         compatible = "snps,nsim_hs";
  14         interrupt-parent = <&core_intc>;
  15
  16         chosen {
  17                 bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8";
  18         };
  19
  20         aliases {
  21                 serial0 = &arcuart0;
  22         };
  23
  24         fpga {
  25                 compatible = "simple-bus";
  26                 #address-cells = <1>;
  27                 #size-cells = <1>;
  28
  29                 /* child and parent address space 1:1 mapped */
  30                 ranges;
  31
  32                 core_intc: core-interrupt-controller {
  33                         compatible = "snps,archs-intc";
  34                         interrupt-controller;
  35                         #interrupt-cells = <1>;
  36                 };
  37
  38                 idu_intc: idu-interrupt-controller {
  39                         compatible = "snps,archs-idu-intc";
  40                         interrupt-controller;
  41                         interrupt-parent = <&core_intc>;
  42
  43                         /*
  44                          * <hwirq  distribution>
  45                          * distribution: 0=RR; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
  46                          */
  47                         #interrupt-cells = <2>;
  48
  49                         /*
  50                          * upstream irqs to core intc - downstream these are
  51                          * "COMMON" irq 0,1..
  52                          */
  53                         interrupts = <24 25 26 27 28 29 30 31>;
  54                 };
  55
  56                 arcuart0: serial@c0fc1000 {
  57                         compatible = "snps,arc-uart";
  58                         reg = <0xc0fc1000 0x100>;
  59                         interrupt-parent = <&idu_intc>;
  60                         interrupts = <0 0>;
  61                         clock-frequency = <80000000>;
  62                         current-speed = <115200>;
  63                         status = "okay";
  64                 };
  65
  66                 arcpct0: pct {
  67                         compatible = "snps,archs-pct";
  68                         #interrupt-cells = <1>;
  69                         interrupts = <20>;
  70                 };
  71         };
  72 };