Linux 'reboot' is HRESET or SRESET on MPC880?

Linux 'reboot' is HRESET or SRESET on MPC880?

[melinda develey]

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I need to know if the linux reboot command performs a HRESET or SRESET. I would like to preserve the direction and status of my GPIO pins and then I would like to perform an SRESET that shouldn't touch the pddat, pddir.
   
  Bye,
  Antonio.

       
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RE: Linux 'reboot' is HRESET or SRESET on MPC880?

[DI BACCO ANTONIO - technolabs]

> I need to know if the linux reboot command performs a HRESET or
SRESET. I would like to preserve
> the direction and status of my GPIO pins and then I would like to
perform an SRESET that=20
> shouldn't touch the pddat, pddir.

The mpc8xx restart consists in clearing the ME bit in MSR register to
cause checkstop on machine check and then accessing an invalid location.
I don't know if this causes a SRESET or HRESET and if the GPIO will be
preserved or not. I know that PDDAT, PDDIR and the like are preserved
with SRESET.=20

Bye.




P.S: Please don't post html messages!=20
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