Commit 072ce172 authored by Sai Prakash Ranjan's avatar Sai Prakash Ranjan Committed by Bjorn Andersson
Browse files

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: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: default avatarSai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/8c5ff297d8c89d9d451352f189baf26c8938842a.1591708204.git.saiprakash.ranjan@codeaurora.org


Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent be45eac2

arch/arm64/boot/dts/qcom/sc7180.dtsi

+8 −0
Original line number Original line Diff line number Diff line
@@ -2226,6 +2226,7 @@ etm@7040000 { 
			clocks = <&aoss_qmp>;

			clocks = <&aoss_qmp>;

			clock-names = "apb_pclk";

			clock-names = "apb_pclk";

			arm,coresight-loses-context-with-cpu;

			arm,coresight-loses-context-with-cpu;

			qcom,skip-power-up;





			out-ports {

			out-ports {

				port {

				port {
@@ -2245,6 +2246,7 @@ etm@7140000 { 
			clocks = <&aoss_qmp>;

			clocks = <&aoss_qmp>;

			clock-names = "apb_pclk";

			clock-names = "apb_pclk";

			arm,coresight-loses-context-with-cpu;

			arm,coresight-loses-context-with-cpu;

			qcom,skip-power-up;





			out-ports {

			out-ports {

				port {

				port {
@@ -2264,6 +2266,7 @@ etm@7240000 { 
			clocks = <&aoss_qmp>;

			clocks = <&aoss_qmp>;

			clock-names = "apb_pclk";

			clock-names = "apb_pclk";

			arm,coresight-loses-context-with-cpu;

			arm,coresight-loses-context-with-cpu;

			qcom,skip-power-up;





			out-ports {

			out-ports {

				port {

				port {
@@ -2283,6 +2286,7 @@ etm@7340000 { 
			clocks = <&aoss_qmp>;

			clocks = <&aoss_qmp>;

			clock-names = "apb_pclk";

			clock-names = "apb_pclk";

			arm,coresight-loses-context-with-cpu;

			arm,coresight-loses-context-with-cpu;

			qcom,skip-power-up;





			out-ports {

			out-ports {

				port {

				port {
@@ -2302,6 +2306,7 @@ etm@7440000 { 
			clocks = <&aoss_qmp>;

			clocks = <&aoss_qmp>;

			clock-names = "apb_pclk";

			clock-names = "apb_pclk";

			arm,coresight-loses-context-with-cpu;

			arm,coresight-loses-context-with-cpu;

			qcom,skip-power-up;





			out-ports {

			out-ports {

				port {

				port {
@@ -2321,6 +2326,7 @@ etm@7540000 { 
			clocks = <&aoss_qmp>;

			clocks = <&aoss_qmp>;

			clock-names = "apb_pclk";

			clock-names = "apb_pclk";

			arm,coresight-loses-context-with-cpu;

			arm,coresight-loses-context-with-cpu;

			qcom,skip-power-up;





			out-ports {

			out-ports {

				port {

				port {
@@ -2340,6 +2346,7 @@ etm@7640000 { 
			clocks = <&aoss_qmp>;

			clocks = <&aoss_qmp>;

			clock-names = "apb_pclk";

			clock-names = "apb_pclk";

			arm,coresight-loses-context-with-cpu;

			arm,coresight-loses-context-with-cpu;

			qcom,skip-power-up;





			out-ports {

			out-ports {

				port {

				port {
@@ -2359,6 +2366,7 @@ etm@7740000 { 
			clocks = <&aoss_qmp>;

			clocks = <&aoss_qmp>;

			clock-names = "apb_pclk";

			clock-names = "apb_pclk";

			arm,coresight-loses-context-with-cpu;

			arm,coresight-loses-context-with-cpu;

			qcom,skip-power-up;





			out-ports {

			out-ports {

				port {

				port {