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

v3 Move change from armada-8040-mcbin.dts to armada-ap806.dtsi. I only have a MACCHIATObin for testing. But in https://github.com/MarvellEmbeddedProcessors/linux-marvell it is done in the same way. v2 add missing right brace

--- arch/arm/dts/armada-ap806.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+)

diff --git a/arch/arm/dts/armada-ap806.dtsi b/arch/arm/dts/armada-ap806.dtsi index ebdee514c0..d28c0822f8 100644 --- a/arch/arm/dts/armada-ap806.dtsi +++ b/arch/arm/dts/armada-ap806.dtsi @@ -64,6 +64,17 @@ 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>;