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| author | Stephan Gerhold <stephan@gerhold.net> | 2021-10-04 23:49:48 +0300 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2021-10-24 06:35:19 +0300 |
| commit | 8e24a29620317012bf271d35692a5bab52831be1 (patch) | |
| tree | 631c001ee7a0ad341ac91e33edc51dfd74c9d69b /Documentation/devicetree/bindings/arm/cpus.yaml | |
| parent | 87922aec8a269805aad7fd462c8959cda49ea9df (diff) | |
| download | linux-8e24a29620317012bf271d35692a5bab52831be1.tar.xz | |
dt-bindings: arm: cpus: Document qcom,msm8916-smp enable-method
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@gerhold.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211004204955.21077-8-stephan@gerhold.net
Diffstat (limited to 'Documentation/devicetree/bindings/arm/cpus.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/arm/cpus.yaml | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml index 6a1e3d455897..cd52f5c9b762 100644 --- a/Documentation/devicetree/bindings/arm/cpus.yaml +++ b/Documentation/devicetree/bindings/arm/cpus.yaml @@ -210,6 +210,8 @@ properties: - qcom,kpss-acc-v1 - qcom,kpss-acc-v2 - qcom,msm8226-smp + # Only valid on ARM 32-bit, see above for ARM v8 64-bit + - qcom,msm8916-smp - renesas,apmu - renesas,r9a06g032-smp - rockchip,rk3036-smp @@ -294,7 +296,8 @@ properties: Specifies the ACC* node associated with this CPU. Required for systems that have an "enable-method" property - value of "qcom,kpss-acc-v1", "qcom,kpss-acc-v2" or "qcom,msm8226-smp" + value of "qcom,kpss-acc-v1", "qcom,kpss-acc-v2", "qcom,msm8226-smp" or + "qcom,msm8916-smp". * arm/msm/qcom,kpss-acc.txt |