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Re: [PATCH v3 3/3] ptp: Added a clock that uses the eTSEC found on the MPC85xx.

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From: Richard Cochran
Subject: Re: [PATCH v3 3/3] ptp: Added a clock that uses the eTSEC found on the MPC85xx.
Date: Monday, May 17, 2010 - 11:36 pm

On Mon, May 17, 2010 at 01:05:54PM -0500, Scott Wood wrote:

I doubt they really have a third fiper.

First of all, this signal is not routed anywhere on the boards. Also,
according to the documentation, it has no bit in the TMR_CTRL or the
TMR_TEMASK registers. Unless there is a bit in TMR_TEMASK, you cannot
get an interrupt from it.

If you cannot use the signal externally (in the "real" world) and you
cannot get an interrupt, what good is it to have such a periodic
signal? Polling the bit in the TMR_TEVENT to see when a pulse occurs
seems pointless.

Scott, you have connections, right? Can you clarify this for me?

Thanks,

Richard
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Messages in current thread:
[PATCH v3 0/3] ptp: IEEE 1588 clock support, Richard Cochran, (Fri May 14, 9:44 am)
[PATCH v3 1/3] ptp: Added a brand new class driver for ptp ..., Richard Cochran, (Fri May 14, 9:45 am)
[PATCH v3 2/3] ptp: Added a clock that uses the Linux syst ..., Richard Cochran, (Fri May 14, 9:46 am)
[PATCH v3 3/3] ptp: Added a clock that uses the eTSEC foun ..., Richard Cochran, (Fri May 14, 9:46 am)
Re: [PATCH v3 3/3] ptp: Added a clock that uses the eTSEC ..., Scott Wood, (Fri May 14, 10:46 am)
Re: [PATCH v3 3/3] ptp: Added a clock that uses the eTSEC ..., Richard Cochran, (Mon May 17, 1:27 am)
Re: [PATCH v3 1/3] ptp: Added a brand new class driver for ..., Wolfgang Grandegger, (Mon May 17, 8:41 am)
Re: [PATCH v3 3/3] ptp: Added a clock that uses the eTSEC ..., Wolfgang Grandegger, (Mon May 17, 8:41 am)
Re: [PATCH v3 3/3] ptp: Added a clock that uses the eTSEC ..., Scott Wood, (Mon May 17, 11:05 am)
Re: [PATCH v3 3/3] ptp: Added a clock that uses the eTSEC ..., Richard Cochran, (Mon May 17, 11:36 pm)
Re: [PATCH v3 3/3] ptp: Added a clock that uses the eTSEC ..., Scott Wood, (Tue May 18, 9:23 am)