5 * ARM Ltd. Versatile Express platform
8 * "Hardware Description" sections of the Technical Reference Manuals
9 for the Versatile Express boards:
10 http://infocenter.arm.com/help/topic/com.arm.doc.subset.boards.express/index.html
11 * Section "4.4.14. System Configuration registers" of the V2M-P1 TRM:
12 http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0447-/index.html
19 Versatile Express platform (http://www.arm.com/versatileexpress/) is a
20 reference & prototyping system for ARM Ltd. processors. It can be set up
21 from a wide range of boards, each of them containing (apart of the main
22 chip/FPGA) a number of microcontrollers responsible for platform
23 configuration and control. Theses microcontrollers can also monitor the
24 board and its environment by a number of internal and external sensors,
25 providing information about power lines voltages and currents, board
26 temperature and power usage. Some of them also calculate consumed energy
27 and provide a cumulative use counter.
29 The configuration devices are _not_ memory mapped and must be accessed
30 via a custom interface, abstracted by the "vexpress_config" API.
32 As these devices are non-discoverable, they must be described in a Device
33 Tree passed to the kernel. Details of the DT binding for them can be found
34 in Documentation/devicetree/bindings/hwmon/vexpress.txt.