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Diffstat (limited to 'Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt')
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diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt deleted file mode 100644 index e0a4ba599abc..000000000000 --- a/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt +++ /dev/null @@ -1,250 +0,0 @@ -Binding for MediaTek's CPUFreq driver -===================================== - -Required properties: -- clocks: A list of phandle + clock-specifier pairs for the clocks listed in clock names. -- clock-names: Should contain the following: - "cpu" - The multiplexer for clock input of CPU cluster. - "intermediate" - A parent of "cpu" clock which is used as "intermediate" clock - source (usually MAINPLL) when the original CPU PLL is under - transition and not stable yet. - Please refer to Documentation/devicetree/bindings/clock/clock-bindings.txt for - generic clock consumer properties. -- operating-points-v2: Please refer to Documentation/devicetree/bindings/opp/opp-v2.yaml - for detail. -- proc-supply: Regulator for Vproc of CPU cluster. - -Optional properties: -- sram-supply: Regulator for Vsram of CPU cluster. When present, the cpufreq driver - needs to do "voltage tracking" to step by step scale up/down Vproc and - Vsram to fit SoC specific needs. When absent, the voltage scaling - flow is handled by hardware, hence no software "voltage tracking" is - needed. -- mediatek,cci: - Used to confirm the link status between cpufreq and mediatek cci. Because - cpufreq and mediatek cci could share the same regulator in some MediaTek SoCs. - To prevent the issue of high frequency and low voltage, we need to use this - property to make sure mediatek cci is ready. - For details of mediatek cci, please refer to - Documentation/devicetree/bindings/interconnect/mediatek,cci.yaml -- #cooling-cells: - For details, please refer to - Documentation/devicetree/bindings/thermal/thermal-cooling-devices.yaml - -Example 1 (MT7623 SoC): - - cpu_opp_table: opp_table { - compatible = "operating-points-v2"; - opp-shared; - - opp-598000000 { - opp-hz = /bits/ 64 <598000000>; - opp-microvolt = <1050000>; - }; - - opp-747500000 { - opp-hz = /bits/ 64 <747500000>; - opp-microvolt = <1050000>; - }; - - opp-1040000000 { - opp-hz = /bits/ 64 <1040000000>; - opp-microvolt = <1150000>; - }; - - opp-1196000000 { - opp-hz = /bits/ 64 <1196000000>; - opp-microvolt = <1200000>; - }; - - opp-1300000000 { - opp-hz = /bits/ 64 <1300000000>; - opp-microvolt = <1300000>; - }; - }; - - cpu0: cpu@0 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; - reg = <0x0>; - clocks = <&infracfg CLK_INFRA_CPUSEL>, - <&apmixedsys CLK_APMIXED_MAINPLL>; - clock-names = "cpu", "intermediate"; - operating-points-v2 = <&cpu_opp_table>; - #cooling-cells = <2>; - }; - cpu@1 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; - reg = <0x1>; - operating-points-v2 = <&cpu_opp_table>; - }; - cpu@2 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; - reg = <0x2>; - operating-points-v2 = <&cpu_opp_table>; - }; - cpu@3 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; - reg = <0x3>; - operating-points-v2 = <&cpu_opp_table>; - }; - -Example 2 (MT8173 SoC): - cpu_opp_table_a: opp_table_a { - compatible = "operating-points-v2"; - opp-shared; - - opp-507000000 { - opp-hz = /bits/ 64 <507000000>; - opp-microvolt = <859000>; - }; - - opp-702000000 { - opp-hz = /bits/ 64 <702000000>; - opp-microvolt = <908000>; - }; - - opp-1001000000 { - opp-hz = /bits/ 64 <1001000000>; - opp-microvolt = <983000>; - }; - - opp-1105000000 { - opp-hz = /bits/ 64 <1105000000>; - opp-microvolt = <1009000>; - }; - - opp-1183000000 { - opp-hz = /bits/ 64 <1183000000>; - opp-microvolt = <1028000>; - }; - - opp-1404000000 { - opp-hz = /bits/ 64 <1404000000>; - opp-microvolt = <1083000>; - }; - - opp-1508000000 { - opp-hz = /bits/ 64 <1508000000>; - opp-microvolt = <1109000>; - }; - - opp-1573000000 { - opp-hz = /bits/ 64 <1573000000>; - opp-microvolt = <1125000>; - }; - }; - - cpu_opp_table_b: opp_table_b { - compatible = "operating-points-v2"; - opp-shared; - - opp-507000000 { - opp-hz = /bits/ 64 <507000000>; - opp-microvolt = <828000>; - }; - - opp-702000000 { - opp-hz = /bits/ 64 <702000000>; - opp-microvolt = <867000>; - }; - - opp-1001000000 { - opp-hz = /bits/ 64 <1001000000>; - opp-microvolt = <927000>; - }; - - opp-1209000000 { - opp-hz = /bits/ 64 <1209000000>; - opp-microvolt = <968000>; - }; - - opp-1404000000 { - opp-hz = /bits/ 64 <1007000000>; - opp-microvolt = <1028000>; - }; - - opp-1612000000 { - opp-hz = /bits/ 64 <1612000000>; - opp-microvolt = <1049000>; - }; - - opp-1807000000 { - opp-hz = /bits/ 64 <1807000000>; - opp-microvolt = <1089000>; - }; - - opp-1989000000 { - opp-hz = /bits/ 64 <1989000000>; - opp-microvolt = <1125000>; - }; - }; - - cpu0: cpu@0 { - device_type = "cpu"; - compatible = "arm,cortex-a53"; - reg = <0x000>; - enable-method = "psci"; - cpu-idle-states = <&CPU_SLEEP_0>; - clocks = <&infracfg CLK_INFRA_CA53SEL>, - <&apmixedsys CLK_APMIXED_MAINPLL>; - clock-names = "cpu", "intermediate"; - operating-points-v2 = <&cpu_opp_table_a>; - }; - - cpu1: cpu@1 { - device_type = "cpu"; - compatible = "arm,cortex-a53"; - reg = <0x001>; - enable-method = "psci"; - cpu-idle-states = <&CPU_SLEEP_0>; - clocks = <&infracfg CLK_INFRA_CA53SEL>, - <&apmixedsys CLK_APMIXED_MAINPLL>; - clock-names = "cpu", "intermediate"; - operating-points-v2 = <&cpu_opp_table_a>; - }; - - cpu2: cpu@100 { - device_type = "cpu"; - compatible = "arm,cortex-a72"; - reg = <0x100>; - enable-method = "psci"; - cpu-idle-states = <&CPU_SLEEP_0>; - clocks = <&infracfg CLK_INFRA_CA72SEL>, - <&apmixedsys CLK_APMIXED_MAINPLL>; - clock-names = "cpu", "intermediate"; - operating-points-v2 = <&cpu_opp_table_b>; - }; - - cpu3: cpu@101 { - device_type = "cpu"; - compatible = "arm,cortex-a72"; - reg = <0x101>; - enable-method = "psci"; - cpu-idle-states = <&CPU_SLEEP_0>; - clocks = <&infracfg CLK_INFRA_CA72SEL>, - <&apmixedsys CLK_APMIXED_MAINPLL>; - clock-names = "cpu", "intermediate"; - operating-points-v2 = <&cpu_opp_table_b>; - }; - - &cpu0 { - proc-supply = <&mt6397_vpca15_reg>; - }; - - &cpu1 { - proc-supply = <&mt6397_vpca15_reg>; - }; - - &cpu2 { - proc-supply = <&da9211_vcpu_reg>; - sram-supply = <&mt6397_vsramca7_reg>; - }; - - &cpu3 { - proc-supply = <&da9211_vcpu_reg>; - sram-supply = <&mt6397_vsramca7_reg>; - }; |