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Subject[PATCH 3/4] ARM: dts: da850-evm: enable cpufreq
Date
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Enable cpufreq-dt support for da850-evm. The cvdd regulator is fixed
at 1.2V on this board so disable the lower operating points and enable
the 375MHz opp.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
arch/arm/boot/dts/da850-evm.dts | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index f04bc3e15332..f63867692da4 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -151,6 +151,15 @@
system-clock-frequency = <24576000>;
};
};
+
+ cvdd: regulator0 {
+ compatible = "regulator-fixed";
+ regulator-name = "cvdd";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
};

&ecap2 {
@@ -191,6 +200,27 @@
};
};

+&cpu {
+ cpu-supply = <&cvdd>;
+};
+
+/*
+ * DA850-EVM has a fixed CVDD of 1.2V - we cannot go below 300MHz or
+ * above 375MHz.
+ */
+
+&opp_100 {
+ status = "disabled";
+};
+
+&opp_200 {
+ status = "disabled";
+};
+
+&opp_375 {
+ status = "okay";
+};
+
&sata {
status = "okay";
};
--
2.20.1
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