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8e49b4b902
This change set enables frequency scaling on ipq806x, which speeds-up the CPU and allows it to achieve its max frequency. These patches are cherry-picked & backported from the following location: *130-132: linux-next *133-143: LKML - https://lkml.org/lkml/2015/3/21/15 *144: derived from other qcom similar dts *145: derived from https://chromium.googlesource.com/chromiumos/third_party/kernel/+/chromeos-3.14/drivers/cpufreq/cpufreq-krait.c Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> SVN-Revision: 45730
101 lines
2.3 KiB
Diff
101 lines
2.3 KiB
Diff
--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
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+++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
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@@ -23,6 +23,11 @@
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next-level-cache = <&L2>;
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qcom,acc = <&acc0>;
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qcom,saw = <&saw0>;
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+ clocks = <&kraitcc 0>;
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+ clock-names = "cpu";
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+ clock-latency = <100000>;
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+ core-supply = <&smb208_s2a>;
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+ voltage-tolerance = <5>;
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};
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cpu@1 {
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@@ -33,11 +38,24 @@
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next-level-cache = <&L2>;
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qcom,acc = <&acc1>;
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qcom,saw = <&saw1>;
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+ clocks = <&kraitcc 1>;
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+ clock-names = "cpu";
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+ clock-latency = <100000>;
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+ core-supply = <&smb208_s2b>;
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};
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L2: l2-cache {
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compatible = "cache";
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cache-level = <2>;
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+ clocks = <&kraitcc 4>;
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+ clock-names = "cache";
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+ cache-points-kHz = <
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+ /* kHz uV CPU kHz */
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+ 1200000 1150000 1200000
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+ 1000000 1100000 600000
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+ 384000 1100000 384000
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+ >;
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+ vdd_dig-supply = <&smb208_s1a>;
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};
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};
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@@ -70,6 +88,46 @@
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};
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};
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+ kraitcc: clock-controller {
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+ compatible = "qcom,krait-cc-v1";
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+ #clock-cells = <1>;
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+ };
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+
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+ qcom,pvs {
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+ qcom,pvs-format-a;
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+ qcom,speed0-pvs0-bin-v0 =
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+ < 1400000000 1250000 >,
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+ < 1200000000 1200000 >,
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+ < 1000000000 1150000 >,
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+ < 800000000 1100000 >,
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+ < 600000000 1050000 >,
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+ < 384000000 1000000 >;
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+
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+ qcom,speed0-pvs1-bin-v0 =
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+ < 1400000000 1175000 >,
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+ < 1200000000 1125000 >,
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+ < 1000000000 1075000 >,
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+ < 800000000 1025000 >,
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+ < 600000000 975000 >,
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+ < 384000000 925000 >;
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+
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+ qcom,speed0-pvs2-bin-v0 =
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+ < 1400000000 1125000 >,
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+ < 1200000000 1075000 >,
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+ < 1000000000 1025000 >,
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+ < 800000000 995000 >,
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+ < 600000000 925000 >,
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+ < 384000000 875000 >;
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+
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+ qcom,speed0-pvs3-bin-v0 =
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+ < 1400000000 1050000 >,
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+ < 1200000000 1000000 >,
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+ < 1000000000 950000 >,
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+ < 800000000 900000 >,
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+ < 600000000 850000 >,
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+ < 384000000 800000 >;
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+ };
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+
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soc: soc {
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#address-cells = <1>;
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#size-cells = <1>;
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@@ -170,11 +228,13 @@
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acc0: clock-controller@2088000 {
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compatible = "qcom,kpss-acc-v1";
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reg = <0x02088000 0x1000>, <0x02008000 0x1000>;
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+ clock-output-names = "acpu0_aux";
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};
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acc1: clock-controller@2098000 {
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compatible = "qcom,kpss-acc-v1";
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reg = <0x02098000 0x1000>, <0x02008000 0x1000>;
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+ clock-output-names = "acpu1_aux";
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};
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l2cc: clock-controller@2011000 {
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