| Message ID | 20181221163046.25769-1-xypron.glpk@gmx.de |
|---|---|
| State | Accepted |
| Commit | cf63dad014bae080445bccbf9cecbe05f2cbed45 |
| Delegated to: | Stefan Roese |
| Headers | show |
| Series | [U-Boot,v3,1/1] arm64: dts: marvell: armada-ap806: reserve PSCI area | expand |
On 12/21/18 5:30 PM, Heinrich Schuchardt wrote: > 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> The accompanying patch has been accepted for the Linux 5.0-rc2 kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.0-rc2&id=132ac39cffbcfed80ada38ef0fc6d34d95da7be6 Best regards Heinrich
On 21.12.18 17:30, Heinrich Schuchardt wrote: > 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(+) Applied to u-boot-marvell/master Thanks, Stefan
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>;
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(+)