On Mon, 04 Oct 2021 22:49:48 +0200, Stephan Gerhold wrote: > Since MSM8916 is an ARM v8 64-bit SoC the CPU cores are normally booted > using "psci" or "spin-table". Unfortunately, some devices come with signed > 32-bit-only firmware without ARM64 and PSCI support. This setup is easy to > support since it's very similar to older 32-bit only Qualcomm SoCs > (e.g. MSM8226) and only requires adding a few new definitions to already > existing drivers. > > Document the qcom,msm8916-smp enable-method. It is actually just an alias > of qcom,msm8226-smp since it should be implemented identically. > The enable-method is only valid on ARM32 and must not be used on ARM64. > > Signed-off-by: Stephan Gerhold <stephan@xxxxxxxxxxx> > --- > Changes in v2: > - Clarify that this is only supposed to be used on ARM 32-bit > (Add comment to commit message and DT schema) > > The "see above for ARM v8 64-bit" comment refers to this a few lines > above in the DT schema: > > # On ARM v8 64-bit this property is required > - enum: > - psci > - spin-table > --- > Documentation/devicetree/bindings/arm/cpus.yaml | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
