diff options
author | Jiri Kosina <jkosina@suse.cz> | 2013-01-29 10:48:30 +0100 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2013-01-29 10:48:30 +0100 |
commit | 617677295b53a40d0e54aac4cbbc216ffbc755dd (patch) | |
tree | 51b9e87213243ed5efff252c8e8d8fec4eebc588 /Documentation/hwmon/vexpress | |
parent | 5c8d1b68e01a144813e38795fe6dbe7ebb506131 (diff) | |
parent | 6abb7c25775b7fb2225ad0508236d63ca710e65f (diff) |
Merge branch 'master' into for-next
Conflicts:
drivers/devfreq/exynos4_bus.c
Sync with Linus' tree to be able to apply patches that are
against newer code (mvneta).
Diffstat (limited to 'Documentation/hwmon/vexpress')
-rw-r--r-- | Documentation/hwmon/vexpress | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/hwmon/vexpress b/Documentation/hwmon/vexpress new file mode 100644 index 000000000000..557d6d5ad90d --- /dev/null +++ b/Documentation/hwmon/vexpress @@ -0,0 +1,34 @@ +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. |