virt.dts

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    1 // SPDX-License-Identifier: GPL-2.0
    2 /dts-v1/;
    3 
    4 / {
    5         compatible = "cdns,xtensa-iss";
    6         #address-cells = <1>;
    7         #size-cells = <1>;
    8         interrupt-parent = <&pic>;
    9 
   10         chosen {
   11                 bootargs = "console=ttyS0,115200n8 debug";
   12         };
   13 
   14         memory@0 {
   15                 device_type = "memory";
   16                 reg = <0x00000000 0x80000000>;
   17         };
   18 
   19         cpus {
   20                 #address-cells = <1>;
   21                 #size-cells = <0>;
   22                 cpu@0 {
   23                         compatible = "cdns,xtensa-cpu";
   24                         reg = <0>;
   25                         clocks = <&osc>;
   26                 };
   27         };
   28 
   29         clocks {
   30                 osc: osc {
   31                         #clock-cells = <0>;
   32                         compatible = "fixed-clock";
   33                         clock-frequency = <40000000>;
   34                 };
   35         };
   36 
   37         pic: pic {
   38                 compatible = "cdns,xtensa-pic";
   39                 /* one cell: internal irq number,
   40                  * two cells: second cell == 0: internal irq number
   41                  *            second cell == 1: external irq number
   42                  */
   43                 #address-cells = <0>;
   44                 #interrupt-cells = <2>;
   45                 interrupt-controller;
   46         };
   47 
   48         pci {
   49                 compatible = "pci-host-ecam-generic";
   50                 device_type = "pci";
   51                 #address-cells = <3>;
   52                 #size-cells = <2>;
   53                 #interrupt-cells = <0x1>;
   54 
   55                 bus-range = <0x0 0x3e>;
   56                 reg = <0xf0100000 0x03f00000>;
   57 
   58                      // BUS_ADDRESS(3)  CPU_PHYSICAL(1)  SIZE(2)
   59                 ranges = <0x01000000 0x0 0x00000000  0xf0000000  0x0 0x00010000>,
   60                          <0x02000000 0x0 0xf4000000  0xf4000000  0x0 0x08000000>;
   61 
   62                      // PCI_DEVICE(3)  INT#(1)  CONTROLLER(PHANDLE)  CONTROLLER_DATA(2)
   63                 interrupt-map = <
   64                         0x0000 0x0 0x0  0x1  &pic  0x0 0x1
   65                         0x0800 0x0 0x0  0x1  &pic  0x1 0x1
   66                         0x1000 0x0 0x0  0x1  &pic  0x2 0x1
   67                         0x1800 0x0 0x0  0x1  &pic  0x3 0x1
   68                         >;
   69 
   70                 interrupt-map-mask = <0x1800 0x0 0x0  0x7>;
   71         };
   72 };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/src/xtensa/virt.dts

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/xtensa/virt.dts