ARM: dts: imx27: Add core voltages

This patch adds core voltages for i.MX27 CPUs. Only 266 and 400 MHz modes
is documented in the datasheet, so we add a 266 MHz frequency for conform this.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi
index 056e33bd8b47..56b8c97a8c99 100644
--- a/arch/arm/boot/dts/imx27.dtsi
+++ b/arch/arm/boot/dts/imx27.dtsi
@@ -57,13 +57,14 @@
                         device_type = "cpu";
                         compatible = "arm,arm926ej-s";
                         operating-points = <
-                                /* kHz  uV (No regulator support) */
-                                133000  0
-                                399000  0
+                                /* kHz uV */
+                                266000 1300000
+                                399000 1450000
                         >;
                         clock-latency = <61036>; /* two CLK32 periods */
                         clocks = <&clks 18>;
                         clock-names = "cpu";
+                        voltage-tolerance = <5>;
                 };
         };