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 <xypron.g...@gmx.de>
---
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
