On Thu, Jan 16, 2014 at 2:01 PM, Fabio Estevam <feste...@gmail.com> wrote:
> On Thu, Jan 16, 2014 at 1:50 PM, Otavio Salvador > <ota...@ossystems.com.br> wrote: > > >> It worked for you probably because you used the ldo bypass mode. > > > > > > Yes; I did the bypass mode. > > We currently don't do LDO bypass mode in mainline U-boot. We do it in > FSL U-boot. > > With LDO bypass, lower VDDARM and VDDSOC voltages can be supplied as > per the mx6 datasheet. > > I just measured with the scope and the VDDARM/SOC voltages supplied by > the 3.10 FSL kernel are below the minimum for the LDO enabled case. So > setting LDO bypass in U-boot 'fixes' the issue. > > We can implement LDO bypass after 2014.01 is out, but for this release > let's just revert the VDDPU disable patch. > > Do you agree? > Yes I do. -- Otavio Salvador O.S. Systems http://www.ossystems.com.br http://code.ossystems.com.br Mobile: +55 (53) 9981-7854 Mobile: +1 (347) 903-9750
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