mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-04 16:15:11 +00:00
Code Issues Releases Wiki Activity

arm64: dts: marvell: armada-ap806: reserve PSCI area

Browse source 
[ Upstream commit 132ac39cff ]

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.

[gregory: added as comment that this region matches the mainline U-boot]
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
This commit is contained in:
Heinrich Schuchardt 2018-12-21 17:45:03 +01:00 committed by Greg Kroah-Hartman
parent fc038565f1
commit bff576f356
1 changed files with 17 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
arch/arm64/boot/dts/marvell/armada-ap806.dtsi
View file

@ -65,6 +65,23 @@ psci {
method = "smc";
};
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
/*
* This area matches the mapping done with a
* mainline U-Boot, and should be updated by the
* bootloader.
*/
psci-area@4000000 {
reg = <0x0 0x4000000 0x0 0x200000>;
no-map;
};
};
ap806 {
#address-cells = <2>;
#size-cells = <2>;