guts.txt (1343B)
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 };