[RFC] arm64: Add cpu-return-addr to dts files
From: mark.rutland@arm.com (Mark Rutland)
Date: 2014-08-18 09:23:58
Also in:
linux-devicetree
On Fri, Aug 15, 2014 at 08:50:29PM +0100, Geoff Levand wrote:
quoted hunk
Add entries for the new device tree property cpu-return-addr to the existing arm64 dts files. Signed-off-by: Geoff Levand <geoff@infradead.org> --- Just FYI. arch/arm64/boot/dts/apm-storm.dtsi | 8 ++++++++ arch/arm64/boot/dts/foundation-v8.dts | 4 ++++ arch/arm64/boot/dts/rtsm_ve-aemv8a.dts | 4 ++++ 3 files changed, 16 insertions(+)diff --git a/arch/arm64/boot/dts/apm-storm.dtsi b/arch/arm64/boot/dts/apm-storm.dtsi index 40aa96c..c40e25f 100644 --- a/arch/arm64/boot/dts/apm-storm.dtsi +++ b/arch/arm64/boot/dts/apm-storm.dtsi@@ -25,6 +25,7 @@ reg = <0x0 0x000>; enable-method = "spin-table"; cpu-release-addr = <0x1 0x0000fff8>; + cpu-return-addr = <0x0 0x0>; /* Updated by bootloader */
Following from the way we handle PSCI in the bootwrapper, if we were to support these I expect we'd inject the proeprties entirely. So there's no need to have a property with an invalid value here -- the property should be valid if present (consider that zero could be a valid PA to jump back to). Cheers, Mark.