45 lines
1.3 KiB
Plaintext
45 lines
1.3 KiB
Plaintext
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* Global Utilities Block
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The global utilities block controls power management, I/O device
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enabling, power-on-reset configuration monitoring, general-purpose
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I/O signal configuration, alternate function selection for multiplexed
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signals, and clock control.
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Required properties:
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- compatible : Should define the compatible device type for
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global-utilities.
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Possible compatibles:
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"fsl,qoriq-device-config-1.0"
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"fsl,qoriq-device-config-2.0"
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"fsl,<chip>-device-config"
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"fsl,<chip>-guts"
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- reg : Offset and length of the register set for the device.
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Recommended properties:
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- fsl,has-rstcr : Indicates that the global utilities register set
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contains a functioning "reset control register" (i.e. the board
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is wired to reset upon setting the HRESET_REQ bit in this register).
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- fsl,liodn-bits : Indicates the number of defined bits in the LIODN
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registers, for those SOCs that have a PAMU device.
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- little-endian : Indicates that the global utilities block is little
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endian. The default is big endian.
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Examples:
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global-utilities@e0000 { /* global utilities block */
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compatible = "fsl,mpc8548-guts";
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reg = <e0000 1000>;
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fsl,has-rstcr;
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};
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guts: global-utilities@e0000 {
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compatible = "fsl,qoriq-device-config-1.0";
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reg = <0xe0000 0xe00>;
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fsl,has-rstcr;
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#sleep-cells = <1>;
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fsl,liodn-bits = <12>;
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};
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