diff options
| author | Leonard Crestez <leonard.crestez@nxp.com> | 2017-05-05 14:00:17 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-25 15:44:44 +0200 |
| commit | 5ee1c675ab92d3c8e25f35b5a4a83aa9d62d741d (patch) | |
| tree | 6288795b16907ae1d3b42b38363c2f48fec03a6b /arch | |
| parent | 03d8b264bcb9187a7127efc0bc18eb5dabdb4ce9 (diff) | |
ARM: dts: imx6sx-sdb: Remove OPP override
commit d8581c7c8be172dac156a19d261f988a72ce596f upstream.
The board file for imx6sx-sdb overrides cpufreq operating points to use
higher voltages. This is done because the board has a shared rail for
VDD_ARM_IN and VDD_SOC_IN and when using LDO bypass the shared voltage
needs to be a value suitable for both ARM and SOC.
This only applies to LDO bypass mode, a feature not present in upstream.
When LDOs are enabled the effect is to use higher voltages than necessary
for no good reason.
Setting these higher voltages can make some boards fail to boot with ugly
semi-random crashes reminiscent of memory corruption. These failures only
happen on board rev. C, rev. B is reported to still work.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Fixes: 54183bd7f766 ("ARM: imx6sx-sdb: add revb board and make it default")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/dts/imx6sx-sdb.dts | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts index 5bb8fd57e7f5..d71da30c9cff 100644 --- a/arch/arm/boot/dts/imx6sx-sdb.dts +++ b/arch/arm/boot/dts/imx6sx-sdb.dts @@ -12,23 +12,6 @@ model = "Freescale i.MX6 SoloX SDB RevB Board"; }; -&cpu0 { - operating-points = < - /* kHz uV */ - 996000 1250000 - 792000 1175000 - 396000 1175000 - 198000 1175000 - >; - fsl,soc-operating-points = < - /* ARM kHz SOC uV */ - 996000 1250000 - 792000 1175000 - 396000 1175000 - 198000 1175000 - >; -}; - &i2c1 { clock-frequency = <100000>; pinctrl-names = "default"; |