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