arch/powerpc/boot/dts/iss4xx.dts

   1 /*
   2  * Device Tree Source for IBM Embedded PPC 476 Platform
   3  *
   4  * Copyright 2010 Torez Smith, IBM Corporation.
   5  *
   6  * Based on earlier code:
   7  *    Copyright (c) 2006, 2007 IBM Corp.
   8  *    Josh Boyer <jwboyer@linux.vnet.ibm.com>, David Gibson <dwg@au1.ibm.com>
   9  *
  10  * This file is licensed under the terms of the GNU General Public
  11  * License version 2.  This program is licensed "as is" without
  12  * any warranty of any kind, whether express or implied.
  13  */
  14
  15 /dts-v1/;
  16
  17 / {
  18         #address-cells = <2>;
  19         #size-cells = <1>;
  20         model = "ibm,iss-4xx";
  21         compatible = "ibm,iss-4xx";
  22         dcr-parent = <&{/cpus/cpu@0}>;
  23
  24         aliases {
  25                 serial0 = &UART0;
  26         };
  27
  28         cpus {
  29                 #address-cells = <1>;
  30                 #size-cells = <0>;
  31
  32                 cpu@0 {
  33                         device_type = "cpu";
  34                         model = "PowerPC,4xx"; // real CPU changed in sim
  35                         reg = <0x00000000>;
  36                         clock-frequency = <100000000>; // 100Mhz :-)
  37                         timebase-frequency = <100000000>;
  38                         i-cache-line-size = <32>; // may need fixup in sim
  39                         d-cache-line-size = <32>; // may need fixup in sim
  40                         i-cache-size = <32768>; /* may need fixup in sim */
  41                         d-cache-size = <32768>; /* may need fixup in sim */
  42                         dcr-controller;
  43                         dcr-access-method = "native";
  44                 };
  45         };
  46
  47         memory {
  48                 device_type = "memory";
  49                 reg = <0x00000000 0x00000000 0x00000000>; // Filled in by zImage
  50         };
  51
  52         UIC0: interrupt-controller0 {
  53                 compatible = "ibm,uic-4xx", "ibm,uic";
  54                 interrupt-controller;
  55                 cell-index = <0>;
  56                 dcr-reg = <0x0c0 0x009>;
  57                 #address-cells = <0>;
  58                 #size-cells = <0>;
  59                 #interrupt-cells = <2>;
  60
  61         };
  62
  63         UIC1: interrupt-controller1 {
  64                 compatible = "ibm,uic-4xx", "ibm,uic";
  65                 interrupt-controller;
  66                 cell-index = <1>;
  67                 dcr-reg = <0x0d0 0x009>;
  68                 #address-cells = <0>;
  69                 #size-cells = <0>;
  70                 #interrupt-cells = <2>;
  71                 interrupts = <0x1e 0x4 0x1f 0x4>; /* cascade */
  72                 interrupt-parent = <&UIC0>;
  73         };
  74
  75         plb {
  76                 compatible = "ibm,plb-4xx", "ibm,plb4"; /* Could be PLB6, doesn't matter */
  77                 #address-cells = <2>;
  78                 #size-cells = <1>;
  79                 ranges;
  80                 clock-frequency = <0>; // Filled in by zImage
  81
  82                 POB0: opb {
  83                         compatible = "ibm,opb-4xx", "ibm,opb";
  84                         #address-cells = <1>;
  85                         #size-cells = <1>;
  86                         /* Wish there was a nicer way of specifying a full 32-bit
  87                            range */
  88                         ranges = <0x00000000 0x00000001 0x00000000 0x80000000
  89                                   0x80000000 0x00000001 0x80000000 0x80000000>;
  90                         clock-frequency = <0>; // Filled in by zImage
  91                         UART0: serial@40000200 {
  92                                 device_type = "serial";
  93                                 compatible = "ns16550a";
  94                                 reg = <0x40000200 0x00000008>;
  95                                 virtual-reg = <0xe0000200>;
  96                                 clock-frequency = <11059200>;
  97                                 current-speed = <115200>;
  98                                 interrupt-parent = <&UIC0>;
  99                                 interrupts = <0x0 0x4>;
 100                         };
 101                 };
 102         };
 103
 104         nvrtc {
 105                 compatible = "ds1743-nvram", "ds1743", "rtc-ds1743";
 106                 reg = <0 0xEF703000 0x2000>;
 107         };
 108         iss-block {
 109                 compatible = "ibm,iss-sim-block-device";
 110                 reg = <0 0xEF701000 0x1000>;
 111         };
 112
 113         chosen {
 114                 linux,stdout-path = "/plb/opb/serial@40000200";
 115         };
 116 };