[U-Boot] [PATCH v2 0/5] arm, am33xx: update for the am33xx based siemens boards

[Marek Vasut]

Dear Vaibhav Bedia,

> On Mon, Nov 4, 2013 at 8:15 AM, Heiko Schocher <hs at denx.de> wrote:
> [...]
> 
> > Hups, missed this EMail ... :-(
> 
> No problem. Happens all the time :)
> 
> > Hmm.. some boards from siemens do not use the RTC, so this approach
> > is not possible here ...
> 
> By unused do you mean it's not powered up or is it simply not programmed?
> 
> Even if the RTC is not programmed the register would still be there. I
> don't have a
> board with me to check the behavior but i am guessing the RTC
> functionality doesn't
> need to be used to make use of the scratchpad registers.

If your hardware's IP block's clock are not ungated, the register access to that 
IP block will usually not work.

Best regards,
Marek Vasut