Kernel-3.10.0-957.el7_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.
  • 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.

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>;
};