[U-Boot] [PATCH v3 1/1] arm64: dts: marvell: armada-ap806: reserve PSCI area
Heinrich Schuchardt
xypron.glpk at gmx.de
Fri Dec 21 16:30:46 UTC 2018
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 at 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 at 4000000 {
+ reg = <0x0 0x4000000 0x0 0x200000>;
+ no-map;
+ };
+ };
+
ap806 {
#address-cells = <2>;
#size-cells = <2>;
--
2.19.2
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