On 01/13/2012 08:13 AM, Norbert van Bolhuis wrote: > I dumped SIPNR/SIMSR and uart IIR/EIR (since console triggers wake-up) > but they do not change just before entering standby (via > mpc6xx_enter_standby > which omits setting MSR_POW). uart IRQ is always enabled, unmasked and > not pending. > > I tried to log to physical memory to see what's going on whenever the > board fails to wake-up. > (I can examine physical memory after CPU is stuck in sleep, by connecting > a JTAG debugger, start u-boot and stop after DDR2 SDRAM ctrl is > re-configured)
Are you sure this isn't going to disturb anything? Why does U-Boot need to be involved, and the SDRAM reconfigured? > It looks like an interupt does occur, but do_IRQ seems to be stuck > in ppc_md.get_irq=ipic_get_irq where it reads SIVCR. Stuck as in the load never completes, or as in ipic_get_irq() gets called repeatedly? If the latter, what value is it reading out? Is the interrupt pending in SIPNR at this point? -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
