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Date:	Wed, 19 Dec 2012 23:36:55 +0530
From:	R Sricharan <>
To:	Benoit Cousson <>
CC:	Luciano Coelho <>, <>,
	Peter Ujfalusi <>,
	Mark Brown <>,
	<>, <>,
	<>, <>, <>,
	<>, Tony Lindgren <>
Subject: Re: 32kHz clock removal causes problems omap_hsmmc


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.


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