Bisected to this commit:

commit af016d94f7e50ffd4ca0fe93a22cb07c06f4c4bf (HEAD, refs/bisect/bad)
Author: Leo Yan <leo.yan@linaro.org>
Date:   Thu Mar 12 10:23:48 2015 +0800

    arm64: dts: enable psci in hikey

    Enable psci in Hisilicon Hi6220 HiKey board.

    Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
    Signed-off-by: Leo Yan <leo.yan@linaro.org>

diff --git a/arch/arm64/boot/dts/hi6220.dtsi b/arch/arm64/boot/dts/hi6220.dtsi
index d3428f4..e15c862 100644
--- a/arch/arm64/boot/dts/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hi6220.dtsi
@@ -9,6 +9,11 @@
 #include <dt-bindings/pinctrl/hisi.h>

 / {
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
  cpus {
  #address-cells = <2>;
  #size-cells = <0>;
@@ -17,8 +22,7 @@
  compatible = "arm,cortex-a53", "arm,armv8";
  device_type = "cpu";
  reg = <0x0 0x0>;
-                        enable-method = "spin-table";
-                        cpu-release-addr = <0x0 0x740fff8>;
+ enable-method = "psci";
  clocks = <&clock_acpu HI6220_STUB_ACPU0>;
  clock-names = "acpu0";
  clock-latency = <0>;
@@ -36,57 +40,44 @@
  compatible = "arm,cortex-a53", "arm,armv8";
  device_type = "cpu";
  reg = <0x0 0x1>;
- enable-method = "spin-table";
-                        cpu-release-addr = <0x0 0x740fff8>;
- clock-latency = <0>;
+ enable-method = "psci";
  };
  cpu2: cpu@2 {
  compatible = "arm,cortex-a53", "arm,armv8";
  device_type = "cpu";
  reg = <0x0 0x2>;
- enable-method = "spin-table";
-                        cpu-release-addr = <0x0 0x740fff8>;
- clock-latency = <0>;
+ enable-method = "psci";
  };
  cpu3: cpu@3 {
  compatible = "arm,cortex-a53", "arm,armv8";
  device_type = "cpu";
  reg = <0x0 0x3>;
- enable-method = "spin-table";
-                        cpu-release-addr = <0x0 0x740fff8>;
- clock-latency = <0>;
+ enable-method = "psci";
  };
  cpu4: cpu@4 {
  compatible = "arm,cortex-a53", "arm,armv8";
  device_type = "cpu";
  reg = <0x0 0x100>;
- enable-method = "spin-table";
-                        cpu-release-addr = <0x0 0x740fff8>;
+ enable-method = "psci";
  clock-latency = <0>;
  };
  cpu5: cpu@5 {
  compatible = "arm,cortex-a53", "arm,armv8";
  device_type = "cpu";
  reg = <0x0 0x101>;
- enable-method = "spin-table";
-                        cpu-release-addr = <0x0 0x740fff8>;
- clock-latency = <0>;
+ enable-method = "psci";
  };
  cpu6: cpu@6 {
  compatible = "arm,cortex-a53", "arm,armv8";
  device_type = "cpu";
  reg = <0x0 0x102>;
- enable-method = "spin-table";
-                        cpu-release-addr = <0x0 0x740fff8>;
- clock-latency = <0>;
+ enable-method = "psci";
  };
  cpu7: cpu@7 {
  compatible = "arm,cortex-a53", "arm,armv8";
  device_type = "cpu";
  reg = <0x0 0x103>;
- enable-method = "spin-table";
-                        cpu-release-addr = <0x0 0x740fff8>;
- clock-latency = <0>;
+ enable-method = "psci";
  };

  cpu-map {
@@ -211,7 +202,6 @@
      <1 14 0xff08>,
      <1 11 0xff08>,
      <1 10 0xff08>;
- clock-frequency = <1200000>;
  };

  reboot {


--
Lee Jones
Linaro ST Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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