diff options
author | Pawel Moll <pawel.moll@arm.com> | 2014-07-22 13:32:59 -0400 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2014-07-23 16:14:43 -0400 |
commit | a33b0daab73a0e08cc04459dd44b0121a8e8f81b (patch) | |
tree | e7c432add19822871a057313264825c85e9cdf80 /Documentation/devicetree/bindings/arm | |
parent | 779ae55bd8ee63f2ba35a0ec15f033e512e706ee (diff) |
bus: ARM CCN PMU driver
Driver providing perf backend for ARM Cache Coherent Network
interconnect. Supports counting all hardware events and crosspoint
watchpoints.
Currently works with CCN-504 only, although there should be
no changes required for CCN-508 (just impossible to test it now).
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'Documentation/devicetree/bindings/arm')
-rw-r--r-- | Documentation/devicetree/bindings/arm/ccn.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/ccn.txt b/Documentation/devicetree/bindings/arm/ccn.txt new file mode 100644 index 000000000000..b100d3847d88 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/ccn.txt | |||
@@ -0,0 +1,21 @@ | |||
1 | * ARM CCN (Cache Coherent Network) | ||
2 | |||
3 | Required properties: | ||
4 | |||
5 | - compatible: (standard compatible string) should be one of: | ||
6 | "arm,ccn-504" | ||
7 | "arm,ccn-508" | ||
8 | |||
9 | - reg: (standard registers property) physical address and size | ||
10 | (16MB) of the configuration registers block | ||
11 | |||
12 | - interrupts: (standard interrupt property) single interrupt | ||
13 | generated by the control block | ||
14 | |||
15 | Example: | ||
16 | |||
17 | ccn@0x2000000000 { | ||
18 | compatible = "arm,ccn-504"; | ||
19 | reg = <0x20 0x00000000 0 0x1000000>; | ||
20 | interrupts = <0 181 4>; | ||
21 | }; | ||