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| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2018-12-21 17:45:03 +0100 |
|---|---|---|
| committer | Gregory CLEMENT <gregory.clement@bootlin.com> | 2019-01-10 12:16:33 +0100 |
| commit | 132ac39cffbcfed80ada38ef0fc6d34d95da7be6 (patch) | |
| tree | b2b3a2872e3f3d534781cbb3f4fdcca39378ec6d | |
| parent | bfeffd155283772bbe78c6a05dec7c0128ee500c (diff) | |
| download | linux-0-day-132ac39cffbcfed80ada38ef0fc6d34d95da7be6.tar.gz linux-0-day-132ac39cffbcfed80ada38ef0fc6d34d95da7be6.tar.xz | |
arm64: dts: marvell: armada-ap806: reserve PSCI area
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>
| -rw-r--r-- | arch/arm64/boot/dts/marvell/armada-ap806.dtsi | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi index 7d94c1fa592a0..7f799cb5668e2 100644 --- a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi +++ b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi @@ -28,6 +28,23 @@ 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>; |