The memory area [0x4000000-0x4200000[ is occupied by the PSCI firmware. Any attempt to access it from U-Boot leads to an immediate crash.
So let's make the same memory reservation as the vendor device tree.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- cf. https://lkml.org/lkml/2018/12/21/253 --- arch/arm/dts/armada-8040-mcbin.dts | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/arch/arm/dts/armada-8040-mcbin.dts b/arch/arm/dts/armada-8040-mcbin.dts index f912596c2c..57ca5e7d98 100644 --- a/arch/arm/dts/armada-8040-mcbin.dts +++ b/arch/arm/dts/armada-8040-mcbin.dts @@ -28,6 +28,16 @@ reg = <0x0 0x0 0x0 0x80000000>; };
+ reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + psci_reserved: psci-area@4000000 { + reg = <0x0 0x4000000 0x0 0x200000>; + no-map; + }; + simple-bus { compatible = "simple-bus"; #address-cells = <1>;