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-rw-r--r--Documentation/devicetree/bindings/arm/coresight.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt
index d711676b4a51e..7f9c1ca874876 100644
--- a/Documentation/devicetree/bindings/arm/coresight.txt
+++ b/Documentation/devicetree/bindings/arm/coresight.txt
@@ -34,9 +34,12 @@ its hardware characteristcs.
Program Flow Trace Macrocell:
"arm,coresight-etm3x", "arm,primecell";
- - Embedded Trace Macrocell (version 4.x):
+ - Embedded Trace Macrocell (version 4.x), with memory mapped access.
"arm,coresight-etm4x", "arm,primecell";
+ - Embedded Trace Macrocell (version 4.x), with system register access only.
+ "arm,coresight-etm4x-sysreg";
+
- Coresight programmable Replicator :
"arm,coresight-dynamic-replicator", "arm,primecell";