guts.txt

 1* Global Utilities Block
 2
 3The global utilities block controls power management, I/O device
 4enabling, power-on-reset configuration monitoring, general-purpose
 5I/O signal configuration, alternate function selection for multiplexed
 6signals, and clock control.
 7
 8Required properties:
 9
10 - compatible : Should define the compatible device type for
11   global-utilities.
12   Possible compatibles:
13	"fsl,qoriq-device-config-1.0"
14	"fsl,qoriq-device-config-2.0"
15	"fsl,<chip>-device-config"
16	"fsl,<chip>-guts"
17 - reg : Offset and length of the register set for the device.
18
19Recommended properties:
20
21 - fsl,has-rstcr : Indicates that the global utilities register set
22   contains a functioning "reset control register" (i.e. the board
23   is wired to reset upon setting the HRESET_REQ bit in this register).
24
25 - fsl,liodn-bits : Indicates the number of defined bits in the LIODN
26   registers, for those SOCs that have a PAMU device.
27
28 - little-endian : Indicates that the global utilities block is little
29   endian. The default is big endian.
30
31Examples:
32	global-utilities@e0000 {	/* global utilities block */
33		compatible = "fsl,mpc8548-guts";
34		reg = <e0000 1000>;
35		fsl,has-rstcr;
36	};
37
38	guts: global-utilities@e0000 {
39		compatible = "fsl,qoriq-device-config-1.0";
40		reg = <0xe0000 0xe00>;
41		fsl,has-rstcr;
42		#sleep-cells = <1>;
43		fsl,liodn-bits = <12>;
44	};