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authorPratik Patel <pratikp@codeaurora.org>2014-11-03 11:07:35 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-11-07 15:19:32 -0800
commita06ae8609b3dd06b957a6e4e965772a8a14d3af5 (patch)
tree7fb5339deabb245bce1803f1e9628b8dc5b20ab2 /include/linux/amba
parentf4c9485f9f5d816bb21333b517d0e3d2746dd285 (diff)
coresight: add CoreSight core layer framework
CoreSight components are compliant with the ARM CoreSight architecture specification and can be connected in various topologies to suit a particular SoC tracing needs. These trace components can generally be classified as sources, links and sinks. Trace data produced by one or more sources flows through the intermediate links connecting the source to the currently selected sink. The CoreSight framework provides an interface for the CoreSight trace drivers to register themselves with. It's intended to build up a topological view of the CoreSight components and configure the correct serie of components on user input via sysfs. For eg., when enabling a source, the framework builds up a path consisting of all the components connecting the source to the currently selected sink(s) and enables all of them. The framework also supports switching between available sinks and provides status information to user space applications through the debugfs interface. Signed-off-by: Pratik Patel <pratikp@codeaurora.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/amba')
-rw-r--r--include/linux/amba/bus.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index c324f5700d1a..d024bd9c9d9b 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -23,6 +23,7 @@
#define AMBA_NR_IRQS 9
#define AMBA_CID 0xb105f00d
+#define CORESIGHT_CID 0xb105900d
struct clk;