[PATCH v2 1/1] arm64: dts: marvell: armada-ap806: reserve PSCI area
From: Heinrich Schuchardt <hidden>
Date: 2018-12-21 16:45:44
Also in:
linux-devicetree, lkml
Subsystem:
arm/marvell kirkwood and armada 370, 375, 38x, 39x, xp, 3700, 7k/8k, cn9130 soc support, the rest · Maintainers:
Andrew Lunn, Gregory Clement, Sebastian Hesselbarth, Linus Torvalds
The memory area [0x4000000-0x4200000[ is occupied by the PSCI firmware. Any attempt to access it from Linux leads to an immediate crash. So let's make the same memory reservation as the vendor kernel. Signed-off-by: Heinrich Schuchardt <redacted> --- v2 Move the change from armada-8040-mcbin.dts to armada-ap806.dtsi. I only have a MACCHIATObin for testing but https://github.com/MarvellEmbeddedProcessors/linux-marvell has the reservation in that file. --- arch/arm64/boot/dts/marvell/armada-ap806.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
index 7d94c1fa592a..f8dafef83db0 100644
--- a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi@@ -28,6 +28,17 @@ method = "smc"; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + psci-area@4000000 { + reg = <0x0 0x4000000 0x0 0x200000>; + no-map; + }; + }; + ap806 { #address-cells = <2>; #size-cells = <2>;
--
2.19.2
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