Handling interrupts on IRQ1 line

bole · **Posted:** Fri Apr 04, 2008 7:14 pm

Hi!

I have a problem handling interrupt - it always triggers twice, at the failling edge. I've connected to pin PC15 (irq1 line) external interrupt source - I can confirm that actual interrupt happens only once.

Code:

    __raw_writel(mask, pio + PIO_IER);
    __raw_writel(mask, pio + PIO_PUDR);
    __raw_writel(mask, pio + PIO_ODR);
    __raw_writel(mask, pio + PIO_IFDR);
    __raw_writel(mask, pio + PIO_PDR);

I've tried also to set SRCTYPE in appropriate AIC_SMR register, but no difference at all. Strange thing is that whenever I read AIC_SMR, I get 0. I'm using 2.6.20.21 kernel with at91 patch.

ps. AT91SAM9260 is my platform

Handling interrupts on IRQ1 line

Who is online