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arm64: dts: qcom: sc7180: Add support to skip powering up of ETM 

Add "qcom,skip-power-up" property to skip powering up ETM
on SC7180 SoC to workaround a hardware errata where CPU
watchdog counter is stopped when ETM power up bit is set
(i.e., when TRCPDCR.PU = 1).

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/8c5ff297d8c89d9d451352f189baf26c8938842a.1591708204.git.saiprakash.ranjan@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Sai Prakash Ranjan 2020-06-09 19:00:28 +05:30 committed by Bjorn Andersson
parent be45eac212
commit 072ce17226
1 changed files with 8 additions and 0 deletions
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8
arch/arm64/boot/dts/qcom/sc7180.dtsi
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@ -2226,6 +2226,7 @@ etm@7040000 {
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
arm,coresight-loses-context-with-cpu;
qcom,skip-power-up;
out-ports {
port {
@ -2245,6 +2246,7 @@ etm@7140000 {
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
arm,coresight-loses-context-with-cpu;
qcom,skip-power-up;
out-ports {
port {
@ -2264,6 +2266,7 @@ etm@7240000 {
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
arm,coresight-loses-context-with-cpu;
qcom,skip-power-up;
out-ports {
port {
@ -2283,6 +2286,7 @@ etm@7340000 {
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
arm,coresight-loses-context-with-cpu;
qcom,skip-power-up;
out-ports {
port {
@ -2302,6 +2306,7 @@ etm@7440000 {
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
arm,coresight-loses-context-with-cpu;
qcom,skip-power-up;
out-ports {
port {
@ -2321,6 +2326,7 @@ etm@7540000 {
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
arm,coresight-loses-context-with-cpu;
qcom,skip-power-up;
out-ports {
port {
@ -2340,6 +2346,7 @@ etm@7640000 {
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
arm,coresight-loses-context-with-cpu;
qcom,skip-power-up;
out-ports {
port {
@ -2359,6 +2366,7 @@ etm@7740000 {
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
arm,coresight-loses-context-with-cpu;
qcom,skip-power-up;
out-ports {
port {