Re: [PATCH] ARM: dts: imx6sx-sdb: Remove cpufreq OPP override
From: Shawn Guo
Date: Thu May 04 2017 - 08:51:29 EST
On Tue, Apr 25, 2017 at 07:57:59PM +0300, Leonard Crestez wrote:
> The board file for imx6sx-dbg 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 was introduced in:
> commit 54183bd7f766 ("ARM: imx6sx-sdb: add revb board and make it default")
> This only only applies to LDO bypass mode, a feature not present in
> upstream. When LDOs are enabled the effect is to use higher voltages than
> necesarry for no good reason.
> Setting these higher voltages can make some boards fail to boot with ugly
Please make it clear it's RevC board.
> semi-random crashes, reminiscent of memory corruption. These failures
> happen the first time the lowest idle state is used. Remove the OPP
> override in order to fix those crashes.
> Signed-off-by: Leonard Crestez <leonard.crestez@xxxxxxx>
Please add tags for Fixes and Cc stable.