Re: 32kHz clock removal causes problems omap_hsmmc

[R Sricharan]

Hi,

On Wednesday 19 December 2012 07:34 PM, Benoit Cousson wrote:
> On 12/19/2012 02:58 PM, Luciano Coelho wrote:
> > On Wed, 2012-12-19 at 14:51 +0100, Benoit Cousson wrote:
> > > On 12/19/2012 02:01 PM, Felipe Balbi wrote:
> > > > On Wed, Dec 19, 2012 at 11:56:20AM +0100, Peter Ujfalusi wrote:
> > > > > BTW: have you happened to ubdate u-boot recently? There is a nice easter egg
> > > > > added there:
> > > > > f3f98bb ARM: OMAP4/5: Do not configure non essential pads, clocks, dplls.
> > > > >
> > > > > Which means that _essential_ clocks and pads are no longer configured.
> > > >
> > > > anything essential you can list ?
> > >
> > > Yeah, that u-boot version is just unusable at all with any mainline
> > > kernel, since we are still missing pads conf for every drivers.
> > >
> > > Regarding the 32k clock, I noticed as well that the OMAP4460 panda
> > > u-boot is the only one to enable it at boot time, and thus this is the
> > > only board that can probe the wilink chip properly as of today.
> >
> > Do you mean that with the latest mainline u-boot all boards will have
> > trouble except panda?
>
> I don't know since the u-boot mainline has never ever supported properly
> the SDP4430, I stopped wasting my time with that code a long time ago.
> But the braves who tried using the latest u-boot mainline code that does
> not configure anything anymore had some troubles...
  Configuring every pad and clocks in the u-boot was removed to
  force kernel drivers to fix up things. Dependency on boot loader
  was always a problem. Bootloader should not configure anything apart
  from what is required for boot.

Regards,
 Sricharan


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