Kernel-4.18.0-80.el8_pistachio

Imagination Pistachio SoC

Required properties:

• compatible: Must include “img,pistachio”.

CPU nodes:

A “cpus” node is required. Required properties:

• #address-cells: Must be 1.

• #size-cells: Must be 0.
  A CPU sub-node is also required for at least CPU 0. Since the topology may
  be probed via CPS, it is not necessary to specify secondary CPUs. Required
  propertis:

• device_type: Must be “cpu”.

• compatible: Must be “mti,interaptiv”.

• reg: CPU number.

• clocks: Must include the CPU clock. See ../../clock/clock-bindings.txt for
  details on clock bindings.
  Example:
  cpus {

   #address-cells = <1>;
   #size-cells = <0>;
  
   cpu0: cpu@0 {
       device_type = "cpu";
       compatible = "mti,interaptiv";
       reg = <0>;
       clocks = <&clk_core CLK_MIPS>;
   };
  

  };

Boot protocol:

In accordance with the MIPS UHI specification[1], the bootloader must pass the
following arguments to the kernel:

• $a0: -2.
• $a1: KSEG0 address of the flattened device-tree blob.

[1] http://prplfoundation.org/wiki/MIPS_documentation