Documentation/devicetree/bindings/arm/arm-boards

   1 ARM Integrator/AP (Application Platform) and Integrator/CP (Compact Platform)
   2 -----------------------------------------------------------------------------
   3 ARM's oldest Linux-supported platform with connectors for different core
   4 tiles of ARMv4, ARMv5 and ARMv6 type.
   5
   6 Required properties (in root node):
   7         compatible = "arm,integrator-ap";  /* Application Platform */
   8         compatible = "arm,integrator-cp";  /* Compact Platform */
   9
  10 FPGA type interrupt controllers, see the versatile-fpga-irq binding doc.
  11
  12 Required nodes:
  13
  14 - core-module: the root node to the Integrator platforms must have
  15   a core-module with regs and the compatible string
  16   "arm,core-module-integrator"
  17 - external-bus-interface: the root node to the Integrator platforms
  18   must have an external bus interface with regs and the
  19   compatible-string "arm,external-bus-interface"
  20
  21   Required properties for the core module:
  22   - regs: the location and size of the core module registers, one
  23     range of 0x200 bytes.
  24
  25 - syscon: the root node of the Integrator platforms must have a
  26   system controller node pointing to the control registers,
  27   with the compatible string
  28   "arm,integrator-ap-syscon"
  29   "arm,integrator-cp-syscon"
  30   respectively.
  31
  32   Required properties for the system controller:
  33   - regs: the location and size of the system controller registers,
  34     one range of 0x100 bytes.
  35
  36   Required properties for the AP system controller:
  37   - interrupts: the AP syscon node must include the logical module
  38     interrupts, stated in order of module instance <module 0>,
  39     <module 1>, <module 2> ... for the CP system controller this
  40     is not required not of any use.
  41
  42 /dts-v1/;
  43 /include/ "integrator.dtsi"
  44
  45 / {
  46         model = "ARM Integrator/AP";
  47         compatible = "arm,integrator-ap";
  48
  49         core-module@10000000 {
  50                 compatible = "arm,core-module-integrator";
  51                 reg = <0x10000000 0x200>;
  52         };
  53
  54         ebi@12000000 {
  55                 compatible = "arm,external-bus-interface";
  56                 reg = <0x12000000 0x100>;
  57         };
  58
  59         syscon {
  60                 compatible = "arm,integrator-ap-syscon";
  61                 reg = <0x11000000 0x100>;
  62                 interrupt-parent = <&pic>;
  63                 /* These are the logic module IRQs */
  64                 interrupts = <9>, <10>, <11>, <12>;
  65         };
  66 };
  67
  68
  69 ARM Versatile Application and Platform Baseboards
  70 -------------------------------------------------
  71 ARM's development hardware platform with connectors for customizable
  72 core tiles.  The hardware configuration of the Versatile boards is
  73 highly customizable.
  74
  75 Required properties (in root node):
  76         compatible = "arm,versatile-ab";  /* Application baseboard */
  77         compatible = "arm,versatile-pb";  /* Platform baseboard */
  78
  79 Interrupt controllers:
  80 - VIC required properties:
  81         compatible = "arm,versatile-vic";
  82         interrupt-controller;
  83         #interrupt-cells = <1>;
  84
  85 - SIC required properties:
  86         compatible = "arm,versatile-sic";
  87         interrupt-controller;
  88         #interrupt-cells = <1>;
  89
  90 Required nodes:
  91
  92 - core-module: the root node to the Versatile platforms must have
  93   a core-module with regs and the compatible strings
  94   "arm,core-module-versatile", "syscon"
  95
  96 ARM RealView Boards
  97 -------------------
  98 The RealView boards cover tailored evaluation boards that are used to explore
  99 the ARM11 and Cortex A-8 and Cortex A-9 processors.
 100
 101 Required properties (in root node):
 102         /* RealView Emulation Baseboard */
 103         compatible = "arm,realview-eb";
 104          /* RealView Platform Baseboard for ARM1176JZF-S */
 105         compatible = "arm,realview-pb1176";
 106         /* RealView Platform Baseboard for ARM11 MPCore */
 107         compatible = "arm,realview-pb11mp";
 108         /* RealView Platform Baseboard for Cortex A-8 */
 109         compatible = "arm,realview-pba8";
 110         /* RealView Platform Baseboard Explore for Cortex A-9 */
 111         compatible = "arm,realview-pbx";
 112
 113 Required nodes:
 114
 115 - soc: some node of the RealView platforms must be the SoC
 116   node that contain the SoC-specific devices, withe the compatible
 117   string set to one of these tuples:
 118    "arm,realview-eb-soc", "simple-bus"
 119    "arm,realview-pb1176-soc", "simple-bus"
 120    "arm,realview-pb11mp-soc", "simple-bus"
 121    "arm,realview-pba8-soc", "simple-bus"
 122    "arm,realview-pbx-soc", "simple-bus"
 123
 124 - syscon: some subnode of the RealView SoC node must be a
 125   system controller node pointing to the control registers,
 126   with the compatible string set to one of these tuples:
 127    "arm,realview-eb-syscon", "syscon"
 128    "arm,realview-pb1176-syscon", "syscon"
 129    "arm,realview-pb11mp-syscon", "syscon"
 130    "arm,realview-pba8-syscon", "syscon"
 131    "arm,realview-pbx-syscon", "syscon"
 132
 133   Required properties for the system controller:
 134   - regs: the location and size of the system controller registers,
 135     one range of 0x1000 bytes.
 136
 137 Example:
 138
 139 /dts-v1/;
 140 #include <dt-bindings/interrupt-controller/irq.h>
 141 #include "skeleton.dtsi"
 142
 143 / {
 144         model = "ARM RealView PB1176 with device tree";
 145         compatible = "arm,realview-pb1176";
 146
 147         soc {
 148                 #address-cells = <1>;
 149                 #size-cells = <1>;
 150                 compatible = "arm,realview-pb1176-soc", "simple-bus";
 151                 ranges;
 152
 153                 syscon: syscon@10000000 {
 154                         compatible = "arm,realview-syscon", "syscon";
 155                         reg = <0x10000000 0x1000>;
 156                 };
 157
 158         };
 159 };
 160
 161 ARM Versatile Express Boards
 162 -----------------------------
 163 For details on the device tree bindings for ARM Versatile Express boards
 164 please consult the vexpress.txt file in the same directory as this file.
 165
 166 ARM Juno Boards
 167 ----------------
 168 The Juno boards are targeting development for AArch64 systems. The first
 169 iteration, Juno r0, is a vehicle for evaluating big.LITTLE on AArch64,
 170 with the second iteration, Juno r1, mainly aimed at development of PCIe
 171 based systems. Juno r1 also has support for AXI masters placed on the TLX
 172 connectors to join the coherency domain.
 173
 174 Juno boards are described in a similar way to ARM Versatile Express boards,
 175 with the motherboard part of the hardware being described in a separate file
 176 to highlight the fact that is part of the support infrastructure for the SoC.
 177 Juno device tree bindings also share the Versatile Express bindings as
 178 described under the RS1 memory mapping.
 179
 180 Required properties (in root node):
 181         compatible = "arm,juno";        /* For Juno r0 board */
 182         compatible = "arm,juno-r1";     /* For Juno r1 board */
 183
 184 Required nodes:
 185 The description for the board must include:
 186    - a "psci" node describing the boot method used for the secondary CPUs.
 187      A detailed description of the bindings used for "psci" nodes is present
 188      in the psci.txt file.
 189    - a "cpus" node describing the available cores and their associated
 190      "enable-method"s. For more details see cpus.txt file.
 191
 192 Example:
 193
 194 /dts-v1/;
 195 / {
 196         model = "ARM Juno development board (r0)";
 197         compatible = "arm,juno", "arm,vexpress";
 198         interrupt-parent = <&gic>;
 199         #address-cells = <2>;
 200         #size-cells = <2>;
 201
 202         cpus {
 203                 #address-cells = <2>;
 204                 #size-cells = <0>;
 205
 206                 A57_0: cpu@0 {
 207                         compatible = "arm,cortex-a57","arm,armv8";
 208                         reg = <0x0 0x0>;
 209                         device_type = "cpu";
 210                         enable-method = "psci";
 211                 };
 212
 213                 .....
 214
 215                 A53_0: cpu@100 {
 216                         compatible = "arm,cortex-a53","arm,armv8";
 217                         reg = <0x0 0x100>;
 218                         device_type = "cpu";
 219                         enable-method = "psci";
 220                 };
 221
 222                 .....
 223         };
 224
 225 };