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