From: Anson Huang <Anson.Huang@nxp.com> commit 92f0eb08c66a73594cf200e65689e767f7f0da5e upstream. On i.MX6UL, accessing OCOTP directly is wrong because the ocotp clock needs to be enabled first, so use the nvmem-cells binding instead. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Cc: Sébastien Szymanski <sebastien.szymanski@armadeus.com> Cc: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- arch/arm/boot/dts/imx6ul.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi index 50834a43..adecd6e 100644 --- a/arch/arm/boot/dts/imx6ul.dtsi +++ b/arch/arm/boot/dts/imx6ul.dtsi @@ -87,6 +87,8 @@ "pll1_sys"; arm-supply = <®_arm>; soc-supply = <®_soc>; + nvmem-cells = <&cpu_speed_grade>; + nvmem-cell-names = "speed_grade"; }; }; @@ -930,6 +932,10 @@ tempmon_temp_grade: temp-grade@20 { reg = <0x20 4>; }; + + cpu_speed_grade: speed-grade@10 { + reg = <0x10 4>; + }; }; lcdif: lcdif@21c8000 { -- 1.8.3