| Message ID | 55add42885c182648ff466254176e43e66137597.1484741104.git.robin.murphy@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi index 5e7640d6ec69..37225dfdc995 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"; };
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...) Signed-off-by: Robin Murphy <robin.murphy@arm.com> --- arch/arm64/boot/dts/arm/juno-base.dtsi | 1 + 1 file changed, 1 insertion(+)