From fd47c2062aa873d4aad311ee68ab1dc021fe6166 Mon Sep 17 00:00:00 2001 From: Robin Murphy <robin.murphy@arm.com> Date: Wed, 18 Jan 2017 12:12:51 +0000 Subject: [PATCH] arm64: dts: juno: add ETR SMMU power domain It is not at all clear from the documentation, but straightforward to determine in practice, that the ETR SMMU is actually in the DEBUGSYS power domain. Add that to the DT so that anyone brave enough to enable said SMMU doesn't experience a system lockup on boot, especially a sneaky one which goes away as soon as you connect an external debugger to have a look at where it's stuck (thus powering up DEBUGSYS by other means and allowing it to make progress again before actually halting...) Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> --- 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 3d2ff408589d0..9d799d938d2f6 100644 --- a/arch/arm64/boot/dts/arm/juno-base.dtsi +++ b/arch/arm64/boot/dts/arm/juno-base.dtsi @@ -52,6 +52,7 @@ #iommu-cells = <1>; #global-interrupts = <1>; dma-coherent; + power-domains = <&scpi_devpd 0>; status = "disabled"; }; -- GitLab