[PATCH 1/1] arm64: dts: marvell: mcbin: reserve PSCI area
From: Heinrich Schuchardt <hidden>
Date: 2018-12-21 11:03:15
Also in:
linux-devicetree, lkml
Subsystem:
arm/marvell kirkwood and armada 370, 375, 38x, 39x, xp, 3700, 7k/8k, cn9130 soc support, marvell macchiatobin support, the rest · Maintainers:
Andrew Lunn, Gregory Clement, Sebastian Hesselbarth, Russell King, 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> --- arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
index 56fa44860909..18df1a321b52 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts@@ -23,6 +23,17 @@ 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; + }; + }; + aliases { ethernet0 = &cp0_eth0; ethernet1 = &cp1_eth0;
--
2.19.2
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