after entering:
echo standby > /sys/power/state
I'm unable to wake up the MPC8313 (on our custom designed
MPC8313 board).
I need it to wake up through GPIO IRQ.
I cause multiple GPIO interrupts (all properly handled by an isr),
but the MPC8313 does not wake up.
How should one wake up via GPGIO IRQ ?
I'm using v2.6.29 and I wonder whether this is related to
our custom 8313 board and/or v2.6.29 and/or missing kernel
patches or maybe this never worked ?
Also, I do not understand line 220 of arch/powerpc/platforms/83xx/suspend.c
219 } else {
220 out_be32(&pmc_regs->mask, PMCER_PMCI);
221
222 mpc6xx_enter_standby();
How can wake up ever work if TSEC/GPIO/TIMER/etc.. wake up events
are disabled ?
changing this into "out_be32(&pmc_regs->mask, PMCER_PMCI|PMCER_GPIO);"
gives same result.
MPC8313 is in PCI HOST mode and here's a relevant part
of the DTS:
pmc: power@b00 {
compatible = "fsl,mpc8313-pmc", "fsl,mpc8349-pmc";
reg = <0xb00 0x100 0xa00 0x100>;
interrupts = <80 8>;
interrupt-parent = <&ipic>;
fsl,mpc8313-wakeup-timer = <>m1>;
/* Remove this (or change to "okay") if you have
* a REVA3 or later board, if you apply one of the
* workarounds listed in section 8.5 of the board
* manual, o if you are adapting this device treeSE=
* to a different board.
*/
status = "okay";
};
gtm1: timer@500 {
compatible = "fsl,mpc8313-gtm", "fsl,gtm";
reg = <0x500 0x100>;
interrupts = <90 8 78 8 84 8 72 8>;
interrupt-parent = <&ipic>;
};
Any help/advice/answer is more than welcome.
---
NvBolhuis
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