Document DT binding for static (non-configurable) funnel and give an example for it.
Cc: Mathieu Poirier mathieu.poirier@linaro.org Cc: Suzuki K Poulose suzuki.poulose@arm.com Cc: Wanglai Shi shiwanglai@hisilicon.com Signed-off-by: Leo Yan leo.yan@linaro.org --- .../devicetree/bindings/arm/coresight.txt | 45 +++++++++++++++++-- 1 file changed, 42 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt index f8aff65ab921..42935c6ca9d6 100644 --- a/Documentation/devicetree/bindings/arm/coresight.txt +++ b/Documentation/devicetree/bindings/arm/coresight.txt @@ -8,7 +8,8 @@ through the intermediate links connecting the source to the currently selected sink. Each CoreSight component device should use these properties to describe its hardware characteristcs.
-* Required properties for all components *except* non-configurable replicators: +* Required properties for all components *except* non-configurable replicators + and non-configurable funnels:
* compatible: These have to be supplemented with "arm,primecell" as drivers are using the AMBA bus interface. Possible values include: @@ -24,7 +25,7 @@ its hardware characteristcs. discovered at boot time when the device is probed. "arm,coresight-tmc", "arm,primecell";
- - Trace Funnel: + - Trace Programmable Funnel: "arm,coresight-funnel", "arm,primecell";
- Embedded Trace Macrocell (version 3.x) and @@ -65,11 +66,12 @@ its hardware characteristcs. "stm-stimulus-base", each corresponding to the areas defined in "reg".
* Required properties for devices that don't show up on the AMBA bus, such as - non-configurable replicators: + non-configurable replicators and non-configurable funnels:
* compatible: Currently supported value is (note the absence of the AMBA markee): - "arm,coresight-replicator" + - "arm,coresight-static-funnel"
* port or ports: see "Graph bindings for Coresight" below.
@@ -200,6 +202,43 @@ Example: }; };
+ funnel { + /* + * non-configurable funnel don't show up on the AMBA + * bus. As such no need to add "arm,primecell". + */ + compatible = "arm,coresight-static-funnel"; + clocks = <&crg_ctrl HI3660_PCLK>; + clock-names = "apb_pclk"; + + out-ports { + port { + combo_funnel_out: endpoint { + remote-endpoint = <&top_funnel_in>; + }; + }; + }; + + in-ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + combo_funnel_in0: endpoint { + remote-endpoint = <&cluster0_etf_out>; + }; + }; + + port@1 { + reg = <1>; + combo_funnel_in1: endpoint { + remote-endpoint = <&cluster1_etf_out>; + }; + }; + }; + }; + funnel@20040000 { compatible = "arm,coresight-funnel", "arm,primecell"; reg = <0 0x20040000 0 0x1000>;