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authorPratik Patel <pratikp@codeaurora.org>2014-11-03 11:07:36 -0700
committerMathieu Poirier <mathieu.poirier@linaro.org>2015-01-02 15:33:30 -0700
commit26e24f1e97e732f9475d403c5e209c29fe403a12 (patch)
tree7b0a1dbe9e683cc1e277f79922aa2e8e44f51493 /arch
parent00311549c2d51f1f6a0ba592d5b1a64923d01389 (diff)
coresight-tmc: add CoreSight TMC driver
This driver manages CoreSight TMC (Trace Memory Controller) which can act as a link or a sink depending upon its configuration. It can present itself as an ETF (Embedded Trace FIFO) or ETR (Embedded Trace Router). ETF when configured in circular buffer mode acts as a trace collection sink. When configured in HW fifo mode it acts as link. ETR always acts as a sink and can be used to route data to memory allocated in RAM. 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> (cherry picked from commit bc4bf7fe98daf4e64cc5ffc6cdc0e820f4d99c14) Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/Kconfig.debug20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 8952e9de080d..d9d38633088f 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1215,4 +1215,24 @@ menuconfig CORESIGHT
a topological view of the CoreSight components based on a DT
specification and configure the right serie of components when a
trace source gets enabled.
+
+if CORESIGHT
+config CORESIGHT_LINKS_AND_SINKS
+ bool "CoreSight Link and Sink drivers"
+ help
+ This enables support for CoreSight link and sink drivers that are
+ responsible for transporting and collecting the trace data
+ respectively. Link and sinks are dynamically aggregated with a trace
+ entity at run time to form a complete trace path.
+
+config CORESIGHT_LINK_AND_SINK_TMC
+ bool "Coresight generic TMC driver"
+ depends on CORESIGHT_LINKS_AND_SINKS
+ help
+ This enables support for the Trace Memory Controller driver. Depending
+ on its configuration the device can act as a link (embedded trace router
+ - ETR) or sink (embedded trace FIFO). The driver complies with the
+ generic implementation of the component without special enhancement or
+ added features.
+endif
endmenu