[PATCH 1/4] arm64: dts: qcom: sc7180: Add support to skip powering up of ETM
From: Sai Prakash Ranjan <hidden>
Date: 2020-06-09 13:31:13
Also in:
linux-arm-kernel, linux-arm-msm, lkml
Subsystem:
arm/qualcomm chromebook support, arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Linus Torvalds
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). Signed-off-by: Sai Prakash Ranjan <redacted> --- Depends on ETM driver change here: - https://git.linaro.org/kernel/coresight.git/commit/?h=next-v5.8-rc1&id=159e248e75b1b548276b6571d7740a35cab1f5be --- arch/arm64/boot/dts/qcom/sc7180.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 7c2b79dda3d7..f684a0b87848 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi@@ -1810,6 +1810,7 @@ clocks = <&aoss_qmp>; clock-names = "apb_pclk"; arm,coresight-loses-context-with-cpu; + qcom,skip-power-up; out-ports { port {
@@ -1829,6 +1830,7 @@ clocks = <&aoss_qmp>; clock-names = "apb_pclk"; arm,coresight-loses-context-with-cpu; + qcom,skip-power-up; out-ports { port {
@@ -1848,6 +1850,7 @@ clocks = <&aoss_qmp>; clock-names = "apb_pclk"; arm,coresight-loses-context-with-cpu; + qcom,skip-power-up; out-ports { port {
@@ -1867,6 +1870,7 @@ clocks = <&aoss_qmp>; clock-names = "apb_pclk"; arm,coresight-loses-context-with-cpu; + qcom,skip-power-up; out-ports { port {
@@ -1886,6 +1890,7 @@ clocks = <&aoss_qmp>; clock-names = "apb_pclk"; arm,coresight-loses-context-with-cpu; + qcom,skip-power-up; out-ports { port {
@@ -1905,6 +1910,7 @@ clocks = <&aoss_qmp>; clock-names = "apb_pclk"; arm,coresight-loses-context-with-cpu; + qcom,skip-power-up; out-ports { port {
@@ -1924,6 +1930,7 @@ clocks = <&aoss_qmp>; clock-names = "apb_pclk"; arm,coresight-loses-context-with-cpu; + qcom,skip-power-up; out-ports { port {
@@ -1943,6 +1950,7 @@ clocks = <&aoss_qmp>; clock-names = "apb_pclk"; arm,coresight-loses-context-with-cpu; + qcom,skip-power-up; out-ports { port {
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation