Lines Matching +full:system +full:- +full:reboot +full:- +full:controller
1 ARM Versatile Express system registers
2 --------------------------------------
4 This is a system control registers block, providing multiple low level
9 - compatible value : = "arm,vexpress,sysreg";
10 - reg : physical base address and the size of the registers window
13 - gpio-controller : specifies that the node is a GPIO controller
14 - #gpio-cells : size of the GPIO specifier, should be 2:
15 - first cell is the pseudo-GPIO line number:
16 0 - MMC CARDIN
17 1 - MMC WPROT
18 2 - NOR FLASH WPn
19 - second cell can take standard GPIO flags (currently ignored).
21 Control registers providing pseudo-GPIO lines must be represented
23 - compatible value : one of
24 "arm,vexpress-sysreg,sys_led"
25 "arm,vexpress-sysreg,sys_mci"
26 "arm,vexpress-sysreg,sys_flash"
27 - gpio-controller : makes the node a GPIO controller
28 - #gpio-cells : size of the GPIO specifier, must be 2:
29 - first cell is the function number:
30 - for sys_led : 0..7 = LED 0..7
31 - for sys_mci : 0 = MMC CARDIN, 1 = MMC WPROT
32 - for sys_flash : 0 = NOR FLASH WPn
33 - second cell can take standard GPIO flags (currently ignored).
37 compatible = "arm,vexpress-sysreg";
41 compatible = "arm,vexpress-sysreg,sys_led";
42 gpio-controller;
43 #gpio-cells = <2>;
47 compatible = "arm,vexpress-sysreg,sys_mci";
48 gpio-controller;
49 #gpio-cells = <2>;
53 compatible = "arm,vexpress-sysreg,sys_flash";
54 gpio-controller;
55 #gpio-cells = <2>;
60 bus via "system control" interface, addressing devices with site number,
61 position in the board stack, config controller, function and device
62 numbers - see motherboard's TRM for more details. All configuration
63 controller accessible via this interface must reference the sysreg
64 node via "arm,vexpress,config-bridge" phandle and define appropriate
65 topology properties - see main vexpress node documentation for more
68 - compatible value : must be one of (corresponding to the TRM):
69 "arm,vexpress-amp"
70 "arm,vexpress-dvimode"
71 "arm,vexpress-energy"
72 "arm,vexpress-muxfpga"
73 "arm,vexpress-osc"
74 "arm,vexpress-power"
75 "arm,vexpress-reboot"
76 "arm,vexpress-reset"
77 "arm,vexpress-scc"
78 "arm,vexpress-shutdown"
79 "arm,vexpress-temp"
80 "arm,vexpress-volt"
81 - arm,vexpress-sysreg,func : must contain a set of two cells long groups:
82 - first cell of each group defines the function number
84 - second cell of each group defines device number (eg. osc 0,
86 - some functions (eg. energy meter, with its 64 bit long counter)
91 compatible = "arm,vexpress,config-bus";
92 arm,vexpress,config-bridge = <&v2m_sysreg>;
95 compatible = "arm,vexpress-osc";
96 arm,vexpress-sysreg,func = <1 0>;
100 compatible = "arm,vexpress-energy";
101 arm,vexpress-sysreg,func = <13 0>, <13 1>;