Hi Matheus, On 7/5/20 4:19 PM, Matheus Castello wrote: > Change the enable-method to fix the failed to boot errors: > > [ 0.040330] smp: Bringing up secondary CPUs ... > [ 0.040683] psci: failed to boot CPU1 (-22) > [ 0.040691] CPU1: failed to boot: -22 > [ 0.041062] psci: failed to boot CPU2 (-22) > [ 0.041071] CPU2: failed to boot: -22 > [ 0.041408] psci: failed to boot CPU3 (-22) > [ 0.041417] CPU3: failed to boot: -22 > [ 0.041443] smp: Brought up 1 node, 1 CPU > [ 0.041451] SMP: Total of 1 processors activated. > > Tested on Caninos Labrador v3 based on Actions Semi S700. > > Signed-off-by: Matheus Castello <matheus@xxxxxxxxxxxxxxx> I tested on the Caninos Labrador v3, and I don't get this errors anymore with this patch, and I have all 4 CPUs: [ 0.076961] smp: Brought up 1 node, 4 CPUs [ 0.574290] SMP: Total of 4 processors activated. Full boot log without your patch: http://ix.io/2qYU Full boot log with your patch: http://ix.io/2qYV Tested-by: Helen Koike <helen.koike@xxxxxxxxxxxxx> Thanks Helen > --- > arch/arm64/boot/dts/actions/s700.dtsi | 33 +++++++++++++++++++-------- > 1 file changed, 23 insertions(+), 10 deletions(-) > > -- > 2.27.0 > > diff --git a/arch/arm64/boot/dts/actions/s700.dtsi b/arch/arm64/boot/dts/actions/s700.dtsi > index 2006ad5424fa..b28dbbcad27b 100644 > --- a/arch/arm64/boot/dts/actions/s700.dtsi > +++ b/arch/arm64/boot/dts/actions/s700.dtsi > @@ -14,37 +14,50 @@ / { > #size-cells = <2>; > > cpus { > - #address-cells = <2>; > + #address-cells = <1>; > #size-cells = <0>; > - > + > cpu0: cpu@0 { > device_type = "cpu"; > compatible = "arm,cortex-a53"; > - reg = <0x0 0x0>; > - enable-method = "psci"; > + reg = <0x0>; > + enable-method = "spin-table"; > + cpu-release-addr = <0 0x1f000020>; > + next-level-cache = <&L2>; > }; > > cpu1: cpu@1 { > device_type = "cpu"; > compatible = "arm,cortex-a53"; > - reg = <0x0 0x1>; > - enable-method = "psci"; > + reg = <0x1>; > + enable-method = "spin-table"; > + cpu-release-addr = <0 0x1f000020>; > + next-level-cache = <&L2>; > }; > > cpu2: cpu@2 { > device_type = "cpu"; > compatible = "arm,cortex-a53"; > - reg = <0x0 0x2>; > - enable-method = "psci"; > + reg = <0x2>; > + enable-method = "spin-table"; > + cpu-release-addr = <0 0x1f000020>; > + next-level-cache = <&L2>; > }; > > cpu3: cpu@3 { > device_type = "cpu"; > compatible = "arm,cortex-a53"; > - reg = <0x0 0x3>; > - enable-method = "psci"; > + reg = <0x3>; > + enable-method = "spin-table"; > + cpu-release-addr = <0 0x1f000020>; > + next-level-cache = <&L2>; > }; > }; > + > + L2: l2-cache { > + compatible = "cache"; > + cache-level = <2>; > + }; > > reserved-memory { > #address-cells = <2>; >