Kernel-4.18.0-80.el8_guts

• Global Utilities Block

The global utilities block controls power management, I/O device
enabling, power-on-reset configuration monitoring, general-purpose
I/O signal configuration, alternate function selection for multiplexed
signals, and clock control.

Required properties:

• compatible : Should define the compatible device type for
  global-utilities.
  Possible compatibles:
  “fsl,qoriq-device-config-1.0”
  “fsl,qoriq-device-config-2.0”
  “fsl,-device-config”
  “fsl,-guts”
• reg : Offset and length of the register set for the device.

Recommended properties:

• fsl,has-rstcr : Indicates that the global utilities register set
  contains a functioning “reset control register” (i.e. the board
  is wired to reset upon setting the HRESET_REQ bit in this register).

• fsl,liodn-bits : Indicates the number of defined bits in the LIODN
  registers, for those SOCs that have a PAMU device.

• little-endian : Indicates that the global utilities block is little
  endian. The default is big endian.

Examples:
global-utilities@e0000 { /* global utilities block */
compatible = “fsl,mpc8548-guts”;
reg = <e0000 1000>;
fsl,has-rstcr;
};

guts: global-utilities@e0000 {
    compatible = "fsl,qoriq-device-config-1.0";
    reg = <0xe0000 0xe00>;
    fsl,has-rstcr;
    #sleep-cells = <1>;
    fsl,liodn-bits = <12>;
};