Hi,
there's a good news which is pretty bad. Good news is that we identified why
our processor timer not working. its because the TBEN in our board is pulled
LOW. which means the decrementer and the timebase registers wont work.
The board design cannot be changed !!! but we have an MPC107 connect
I had the same issue with an MPC885 board. My kernel was 2.6.33. On
that board decrementer exception was not working. I replaced the
board, took new board (MPC885 only, just another board) and the same
kernel worked fine. I don't know how the problem was solved.
-Mohan
On 9/22/11, Scott Wood wro
On 09/21/2011 01:56 AM, Vineeth wrote:
>>> What was the issue? You really should try to make this work rather than
>>> hack around it.
>
> what we found was the decrementer is not generating an exception when it
> becomes 0. and the timebase registers are not getting incremented too.
Does the de
>> What was the issue? You really should try to make this work rather than
>> hack around it.
what we found was the decrementer is not generating an exception when it
becomes 0. and the timebase registers are not getting incremented too. The
exceptions are enabled in MSR registers.
we are using
On 09/16/2011 06:43 AM, Vineeth wrote:
> Hi,
>
> We are porting Linux on MPC7410 based board. As there was some issue
> with the processor DECrementer and timebase registers,
What was the issue? You really should try to make this work rather than
hack around it.
> lately we moved to Linux 3.0.3
Hi,
We are porting Linux on MPC7410 based board. As there was some issue with
the processor DECrementer and timebase registers, we were using an external
count down timer as our DECementer. We used timer_interrupt() function in
arch/powerpc/kernel/time.c as our interrupt handler. Things were worki
