On Friday 17 July 2009, Steve Chen wrote:
>
> > We will will move the DMA input to one of the other banks and disable
> > that bank’s interrupt. If that cannot be done on our hardware, we will
> > try reworking the DaVinci interrupt handler so we only enable for
> > interrupt selected GPIO0…7 pins and and BANK1..4, and never BANK0.
>
> I remember seeing an extensive discussion on this mailing list regarding
> DaVinci GPIO bank vs individual interrupt. You may find these
> discussions helpful.
For *current* GIT kernels you could also just set
davinci_soc_info.gpio_unbanked = 8;
in your board init, to make it so the bank IRQs are not used
at all ... and only the first 8 GPIO IRQs are available. That
number "8" is specific to the DM6446, since it has 8 non-banked
GPIO IRQs.
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