DS1337 RTC on I2C broken.

Clemens Koller clemens.koller at anagramm.de
Thu Nov 29 06:20:26 EST 2007


Hi, Alessandro!

Thank you for your quick response... I'll just follow your
ideas and provide you with the dmesg output ASAP.

If you are online for some more time, I will accelerate
this debugging session... Just let me know.

Alessandro Zummo schrieb:
> On Wed, 28 Nov 2007 19:25:00 +0100
> Clemens Koller <clemens.koller at anagramm.de> wrote:
> 
>> Well, as already mentioned, I have problems to get my DS1337 RTC on I2C
>> on my MPC8540(ads like) PowerPC working properly on
>> latest 2.6.24-rc2-ge6a5c27f kernels. A paulus.git 2.6.21-rc5-g9a5ee4cc
>> as well as a 2.6.22-rc6-gb75ae860 is working fine.
>> (mainstream's console is broken, so cannot test these, yet.)
>>
>>
>> My guess is that the new rtc-lib's RTC_DRV_DS1307 support is still broken
>> and it also breaks the deprecated SENSORS_DS1337. :-(
> 
>  mmm. I've been told it should work ;)

> 
>> Here is a snippet from my .config which is similar among my kernels.
>> CONFIG_GEN_RTC=y
> 
>  this one must be deselected.
> 
>> CONFIG_SENSORS_DS1337=y
>> CONFIG_SENSORS_DS1374=y
> 
>  ditto.

Will do.

> 
>> DEV: registering device: ID = '0-0068'
>> bus i2c: add device 0-0068
>> bound device '0-0068' to driver 'ds1337'
> 
>  maybe the wrong driver is kicking in here.
>  the fact that there is no rtc class
>  related output in dmesg should and that
>  there is no /dev/rtc0 could be a sign that the whole class
>  is not going in.
> 
>  do you have full dmesg? 

Not a full one from the 2.6.24 right now...
But I'll disable above stuff and get you a full one.
(in 5..10 minutes).

Regards,

Clemens Koller
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