On 17 February 2017 at 12:13, Mike Leach mike.leach@linaro.org wrote:
Juno platforms have a programmable replicator splitting the trace output to TPIU and ETR. Currently this is not being programmed as it is being treated as a none-programmable replicator - which is the default operational mode for these devices. The TPIU in the system is enabled by default, and this combination is causing back-pressure in the trace system resulting in overflows at the source.
Replaces the existing definition with one that defines the programmable replicator, using the "qcom,coresight-replicator1x" driver that provides the correct functionality for CoreSight programmable replicators.
Signed-off-by: Mike Leach mike.leach@linaro.org
arch/arm64/boot/dts/arm/juno-base.dtsi | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi index 9d799d9..6546e23 100644 --- a/arch/arm64/boot/dts/arm/juno-base.dtsi +++ b/arch/arm64/boot/dts/arm/juno-base.dtsi @@ -372,12 +372,14 @@ }; };
coresight-replicator {/** Non-configurable replicators don't show up on the* AMBA bus. As such no need to add "arm,primecell".*/compatible = "arm,coresight-replicator";
coresight-replicator@20120000 {
There is an extra line that is not needed here. And we can probably change "coresight-replicator" to "replicator" now that it can be discovered on the AMBA bus.
Other than that:
Tested-by: Mathieu Poirier mathieu.poirier@linaro.org Reviewed-by: Mathieu Poirier mathieu.poirier@linaro.org
compatible = "qcom,coresight-replicator1x", "arm,primecell";reg = <0 0x20120000 0 0x1000>;clocks = <&soc_smc50mhz>;clock-names = "apb_pclk";power-domains = <&scpi_devpd 0>; ports { #address-cells = <1>;-- 2.7.4