From: Peter Senna Tschudin <peter.se...@collabora.com>

Enable secure debug enable register access for Bx50v3 devices to enable
PMU and hardware counters for perf.

Signed-off-by: Peter Senna Tschudin <peter.se...@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reic...@collabora.co.uk>
---
Changes since PATCHv1:
 * add property by adding a label to the pmu node in imx6qdl and
   referencing it in bx50v3.dtsi.
---
 arch/arm/boot/dts/imx6q-bx50v3.dtsi | 4 ++++
 arch/arm/boot/dts/imx6qdl.dtsi      | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6q-bx50v3.dtsi 
b/arch/arm/boot/dts/imx6q-bx50v3.dtsi
index 916ea94d75ca..2baffc8b9094 100644
--- a/arch/arm/boot/dts/imx6q-bx50v3.dtsi
+++ b/arch/arm/boot/dts/imx6q-bx50v3.dtsi
@@ -388,3 +388,7 @@
                #interrupt-cells = <1>;
        };
 };
+
+&pmu {
+       secure-reg-access;
+};
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 59ff86695a14..2b921de44c02 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -143,7 +143,7 @@
                };
        };
 
-       pmu {
+       pmu: pmu {
                compatible = "arm,cortex-a9-pmu";
                interrupt-parent = <&gpc>;
                interrupts = <0 94 IRQ_TYPE_LEVEL_HIGH>;
-- 
2.15.1

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