For Exynos4x12 platforms, add CPU operating points (using opp-v2 bindings) and CPU regulator supply properties for migrating from Exynos specific cpufreq driver to using generic cpufreq driver.
Based on the earlier work by Thomas Abraham. Cc: Kukjin Kim <[email protected]> Cc: Doug Anderson <[email protected]> Cc: Javier Martinez Canillas <[email protected]> Cc: Andreas Faerber <[email protected]> Cc: Thomas Abraham <[email protected]> Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]> --- arch/arm/boot/dts/exynos4212.dtsi | 81 ++++++++++++++++++++++++ arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 4 ++ arch/arm/boot/dts/exynos4412-origen.dts | 5 ++ arch/arm/boot/dts/exynos4412-trats2.dts | 5 ++ arch/arm/boot/dts/exynos4412.dtsi | 83 +++++++++++++++++++++++++ 5 files changed, 178 insertions(+) diff --git a/arch/arm/boot/dts/exynos4212.dtsi b/arch/arm/boot/dts/exynos4212.dtsi index d9c8efee..9dc40d5 100644 --- a/arch/arm/boot/dts/exynos4212.dtsi +++ b/arch/arm/boot/dts/exynos4212.dtsi @@ -30,6 +30,9 @@ device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <0xA00>; + clocks = <&clock CLK_ARM_CLK>; + clock-names = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; cooling-min-level = <13>; cooling-max-level = <7>; #cooling-cells = <2>; /* min followed by max */ @@ -39,6 +42,84 @@ device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <0xA01>; + operating-points-v2 = <&cpu0_opp_table>; + }; + }; + + cpu0_opp_table: opp_table0 { + compatible = "operating-points-v2"; + opp-shared; + + opp00 { + opp-hz = <200000000>; + opp-microvolt = <900000>; + clock-latency-ns = <200000>; + }; + opp01 { + opp-hz = <300000000>; + opp-microvolt = <900000>; + clock-latency-ns = <200000>; + }; + opp02 { + opp-hz = <400000000>; + opp-microvolt = <925000>; + clock-latency-ns = <200000>; + }; + opp03 { + opp-hz = <500000000>; + opp-microvolt = <950000>; + clock-latency-ns = <200000>; + }; + opp04 { + opp-hz = <600000000>; + opp-microvolt = <975000>; + clock-latency-ns = <200000>; + }; + opp05 { + opp-hz = <700000000>; + opp-microvolt = <987500>; + clock-latency-ns = <200000>; + }; + opp06 { + opp-hz = <800000000>; + opp-microvolt = <1000000>; + clock-latency-ns = <200000>; + }; + opp07 { + opp-hz = <900000000>; + opp-microvolt = <1037500>; + clock-latency-ns = <200000>; + }; + opp08 { + opp-hz = <1000000000>; + opp-microvolt = <1087500>; + clock-latency-ns = <200000>; + }; + opp09 { + opp-hz = <1100000000>; + opp-microvolt = <1137500>; + clock-latency-ns = <200000>; + }; + opp10 { + opp-hz = <1200000000>; + opp-microvolt = <1187500>; + clock-latency-ns = <200000>; + }; + opp11 { + opp-hz = <1300000000>; + opp-microvolt = <1250000>; + clock-latency-ns = <200000>; + }; + opp12 { + opp-hz = <1400000000>; + opp-microvolt = <1287500>; + clock-latency-ns = <200000>; + }; + opp13 { + opp-hz = <1500000000>; + opp-microvolt = <1350000>; + clock-latency-ns = <200000>; + turbo-mode; }; }; }; diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi index ca7d168..1c7811a 100644 --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi @@ -507,3 +507,7 @@ &watchdog { status = "okay"; }; + +&cpu0 { + cpu0-supply = <&buck2_reg>; +}; diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts index 84c7631..21150b4 100644 --- a/arch/arm/boot/dts/exynos4412-origen.dts +++ b/arch/arm/boot/dts/exynos4412-origen.dts @@ -532,3 +532,8 @@ &watchdog { status = "okay"; }; + + +&cpu0 { + cpu0-supply = <&buck2_reg>; +}; diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts index afc199d..1ee43456 100644 --- a/arch/arm/boot/dts/exynos4412-trats2.dts +++ b/arch/arm/boot/dts/exynos4412-trats2.dts @@ -1313,3 +1313,8 @@ vtmu-supply = <&ldo10_reg>; status = "okay"; }; + + +&cpu0 { + cpu0-supply = <&buck2_reg>; +}; diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi index b78ada7..cead3a7 100644 --- a/arch/arm/boot/dts/exynos4412.dtsi +++ b/arch/arm/boot/dts/exynos4412.dtsi @@ -30,6 +30,9 @@ device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <0xA00>; + clocks = <&clock CLK_ARM_CLK>; + clock-names = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; cooling-min-level = <13>; cooling-max-level = <7>; #cooling-cells = <2>; /* min followed by max */ @@ -39,18 +42,98 @@ device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <0xA01>; + operating-points-v2 = <&cpu0_opp_table>; }; cpu@A02 { device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <0xA02>; + operating-points-v2 = <&cpu0_opp_table>; }; cpu@A03 { device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <0xA03>; + operating-points-v2 = <&cpu0_opp_table>; + }; + }; + + cpu0_opp_table: opp_table0 { + compatible = "operating-points-v2"; + opp-shared; + + opp00 { + opp-hz = <200000000>; + opp-microvolt = <900000>; + clock-latency-ns = <200000>; + }; + opp01 { + opp-hz = <300000000>; + opp-microvolt = <900000>; + clock-latency-ns = <200000>; + }; + opp02 { + opp-hz = <400000000>; + opp-microvolt = <925000>; + clock-latency-ns = <200000>; + }; + opp03 { + opp-hz = <500000000>; + opp-microvolt = <950000>; + clock-latency-ns = <200000>; + }; + opp04 { + opp-hz = <600000000>; + opp-microvolt = <975000>; + clock-latency-ns = <200000>; + }; + opp05 { + opp-hz = <700000000>; + opp-microvolt = <987500>; + clock-latency-ns = <200000>; + }; + opp06 { + opp-hz = <800000000>; + opp-microvolt = <1000000>; + clock-latency-ns = <200000>; + }; + opp07 { + opp-hz = <900000000>; + opp-microvolt = <1037500>; + clock-latency-ns = <200000>; + }; + opp08 { + opp-hz = <1000000000>; + opp-microvolt = <1087500>; + clock-latency-ns = <200000>; + }; + opp09 { + opp-hz = <1100000000>; + opp-microvolt = <1137500>; + clock-latency-ns = <200000>; + }; + opp10 { + opp-hz = <1200000000>; + opp-microvolt = <1187500>; + clock-latency-ns = <200000>; + }; + opp11 { + opp-hz = <1300000000>; + opp-microvolt = <1250000>; + clock-latency-ns = <200000>; + }; + opp12 { + opp-hz = <1400000000>; + opp-microvolt = <1287500>; + clock-latency-ns = <200000>; + }; + opp13 { + opp-hz = <1500000000>; + opp-microvolt = <1350000>; + clock-latency-ns = <200000>; + turbo-mode; }; }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
