diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2023-07-09 23:30:19 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2023-07-19 05:15:33 +0300 |
| commit | c486762fb17c99fd642beea3e1e4744d093c262a (patch) | |
| tree | 0a723481f4bf82fa933309e5b40b8102f4323e39 | |
| parent | b27bfc5103c72f84859bd32731b6a09eafdeda05 (diff) | |
| download | linux-c486762fb17c99fd642beea3e1e4744d093c262a.tar.xz | |
ARM: dts: nxp/imx: limit sk-imx53 supported frequencies
The SK-IMX53 board, bearing i.MX536A CPU, is not stable when running at
1.2 GHz (default iMX53 maximum). The SoC is only rated up to 800 MHz.
Disable 1.2 GHz and 1 GHz frequencies.
Fixes: 0b8576d8440a ("ARM: dts: imx: Add support for SK-iMX53 board")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm/boot/dts/nxp/imx/imx53-sk-imx53.dts | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/nxp/imx/imx53-sk-imx53.dts b/arch/arm/boot/dts/nxp/imx/imx53-sk-imx53.dts index 103e73176e47..1a00d290092a 100644 --- a/arch/arm/boot/dts/nxp/imx/imx53-sk-imx53.dts +++ b/arch/arm/boot/dts/nxp/imx/imx53-sk-imx53.dts @@ -60,6 +60,16 @@ status = "okay"; }; +&cpu0 { + /* CPU rated to 800 MHz, not the default 1.2GHz. */ + operating-points = < + /* kHz uV */ + 166666 850000 + 400000 900000 + 800000 1050000 + >; +}; + &ecspi1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_ecspi1>; |