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ARM: dts: imx6q-cm-fx6: fix the operation points

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The current ldo settings of the cm-fx6 do not allow 1.2GHz cpu
frequency. At this frequency the module behaves unstable.

But the imx6q fuse indicates that 1.2GHz operation is possible.
Hence, remove the 1.2GHz operation point in the device tree.

Signed-off-by: Valentin Raevsky <valentin@compulab.co.il>
[christopher.spinrath@rwth-aachen.de: enhance commit message, adjust
 remaining operation points to match the ones in imx6q.dtsi and add
 a comment in the device tree]
Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Valentin Raevsky 2016-06-13 01:24:55 +02:00 committed by Shawn Guo
parent 74332d7576
commit 5bca20f7fe
1 changed files with 22 additions and 0 deletions
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22
arch/arm/boot/dts/imx6q-cm-fx6.dts
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@ -91,6 +91,28 @@ reg_usb_otg_vbus: usb_otg_vbus {
};
};
&cpu0 {
/*
* Although the imx6q fuse indicates that 1.2GHz operation is possible,
* the module behaves unstable at this frequency. Hence, remove the
* 1.2GHz operation point here.
*/
operating-points = <
/* kHz uV */
996000 1250000
852000 1250000
792000 1175000
396000 975000
>;
fsl,soc-operating-points = <
/* ARM kHz SOC-PU uV */
996000 1250000
852000 1250000
792000 1175000
396000 1175000
>;
};
&ecspi1 {
fsl,spi-num-chipselects = <2>;
cs-gpios = <&gpio2 30 GPIO_ACTIVE_HIGH>, <&gpio3 19 GPIO_ACTIVE_HIGH>;