[PATCH v4 2/5] ARM: dts: da850-lego-ev3: enable cpufreq

[Bartosz Golaszewski]

From: David Lechner <da...@lechnology.com>

Add a fixed regulator for the LEGO EV3 board along with board-specific
CPU configuration.

Signed-off-by: David Lechner <da...@lechnology.com>
Signed-off-by: Bartosz Golaszewski <bgolaszew...@baylibre.com>
---
 arch/arm/boot/dts/da850-lego-ev3.dts | 30 ++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/da850-lego-ev3.dts 
b/arch/arm/boot/dts/da850-lego-ev3.dts
index 66fcadf0ba91..553717f84483 100644
--- a/arch/arm/boot/dts/da850-lego-ev3.dts
+++ b/arch/arm/boot/dts/da850-lego-ev3.dts
@@ -125,6 +125,15 @@
                amp-supply = <&amp>;
        };
 
+       cvdd: regulator0 {
+               compatible = "regulator-fixed";
+               regulator-name = "cvdd";
+               regulator-min-microvolt = <1200000>;
+               regulator-max-microvolt = <1200000>;
+               regulator-always-on;
+               regulator-boot-on;
+       };
+
        /*
         * This is a 5V current limiting regulator that is shared by USB,
         * the sensor (input) ports, the motor (output) ports and the A/DC.
@@ -204,6 +213,27 @@
        clock-frequency = <24000000>;
 };
 
+&cpu {
+       cpu-supply = <&cvdd>;
+};
+
+/* since we have a fixed regulator, we can't run at these points */
+&opp_100 {
+       status = "disabled";
+};
+
+&opp_200 {
+       status = "disabled";
+};
+
+/*
+ * The SoC is actually the 456MHz version, but because of the fixed regulator
+ * This is the fastest we can go.
+ */
+&opp_375 {
+       status = "okay";
+};
+
 &pmx_core {
        status = "okay";
 
-- 
2.21.0