[PATCH] ARM: dts: imx53-qsb: disable 1.2GHz OPP

Sascha Hauer s.hauer at pengutronix.de
Mon Sep 10 05:50:56 PDT 2018


The maximum CPU frequency for the i.MX53 QSB is 1GHz, so disable the
1.2GHz OPP. This makes the board work with cpufreq again.

Fixes: 791f416608 ("ARM: dts: imx53: add cpufreq-dt support")

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/boot/dts/imx53-qsb-common.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/imx53-qsb-common.dtsi b/arch/arm/boot/dts/imx53-qsb-common.dtsi
index 7423d462d1e4..50dde84b72ed 100644
--- a/arch/arm/boot/dts/imx53-qsb-common.dtsi
+++ b/arch/arm/boot/dts/imx53-qsb-common.dtsi
@@ -123,6 +123,17 @@
 	};
 };
 
+&cpu0 {
+	/* CPU rated to 1GHz, not 1.2GHz as per the default settings */
+	operating-points = <
+		/* kHz   uV */
+		166666  850000
+		400000  900000
+		800000  1050000
+		1000000 1200000
+	>;
+};
+
 &esdhc1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_esdhc1>;
-- 
2.18.0




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