From 79daf2a4089f6a817e5e0202362cdc764b535561 Mon Sep 17 00:00:00 2001 From: Suzuki K Poulose Date: Tue, 11 Sep 2018 09:47:21 +0100 Subject: [PATCH] arm64: dts: juno: Enable coresight tmc scatter gather in ETR We do not enable scatter-gather mode in the TMC-ETR by default to prevent malfunctioning of systems where the ETR may not be properly connected to the memory subsystem to allow for simultaneous READ/WRITE transactions when used in SG mode. Instead we whitelist the platforms where we know that it is safe to use the mode. All revisions of Juno have a proper ETR connection and hence white list them. Cc: Mathieu Poirier Cc: Mike Leach Cc: Liviu Dudau Cc: Lorenzo Pierlisi Signed-off-by: Suzuki K Poulose Signed-off-by: Sudeep Holla --- arch/arm64/boot/dts/arm/juno-base.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi index a418193603df1..ed774ee8f6594 100644 --- a/arch/arm64/boot/dts/arm/juno-base.dtsi +++ b/arch/arm64/boot/dts/arm/juno-base.dtsi @@ -193,6 +193,7 @@ clocks = <&soc_smc50mhz>; clock-names = "apb_pclk"; power-domains = <&scpi_devpd 0>; + arm,scatter-gather; in-ports { port { etr_in_port: endpoint { -- 2.30.2