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Diffstat (limited to 'Documentation/devicetree/bindings/arm/cpus.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/arm/cpus.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt index 3a07a87fe..ae9be074d 100644 --- a/Documentation/devicetree/bindings/arm/cpus.txt +++ b/Documentation/devicetree/bindings/arm/cpus.txt @@ -157,6 +157,7 @@ nodes to be present and contain the properties described below. "arm,cortex-a17" "arm,cortex-a53" "arm,cortex-a57" + "arm,cortex-a72" "arm,cortex-m0" "arm,cortex-m0+" "arm,cortex-m1" @@ -190,6 +191,8 @@ nodes to be present and contain the properties described below. "allwinner,sun6i-a31" "allwinner,sun8i-a23" "arm,psci" + "arm,realview-smp" + "brcm,bcm-nsp-smp" "brcm,brahma-b15" "marvell,armada-375-smp" "marvell,armada-380-smp" @@ -200,6 +203,7 @@ nodes to be present and contain the properties described below. "qcom,gcc-msm8660" "qcom,kpss-acc-v1" "qcom,kpss-acc-v2" + "rockchip,rk3036-smp" "rockchip,rk3066-smp" "ste,dbx500-smp" @@ -242,6 +246,23 @@ nodes to be present and contain the properties described below. Definition: Specifies the syscon node controlling the cpu core power domains. + - dynamic-power-coefficient + Usage: optional + Value type: <prop-encoded-array> + Definition: A u32 value that represents the running time dynamic + power coefficient in units of mW/MHz/uVolt^2. The + coefficient can either be calculated from power + measurements or derived by analysis. + + The dynamic power consumption of the CPU is + proportional to the square of the Voltage (V) and + the clock frequency (f). The coefficient is used to + calculate the dynamic power as below - + + Pdyn = dynamic-power-coefficient * V^2 * f + + where voltage is in uV, frequency is in MHz. + Example 1 (dual-cluster big.LITTLE system 32-bit): cpus { |