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IOFPGA's SP804 timer 2/3

Hesham Almatary

Hello,

I am trying to get timer2 from the second SP804 device working. My IOFPGA version is v010f and I believe I set the proper interrupt muxing/direction for this timer in io_v010f.txt. My driver works fine for timer 0 in the first SP804, but not timer 2. The only difference between the two timers is the base SP804 address (from 0x1c0d0000 to 0x1c0e0000). The driver doesn't work for timer2 and I don't get interrupts even if I set SOC_IRQ[6] to timer2's ID (2), while timer0 works fine when I set SOC_IRQ[6] to 0.

Is the second SP804 device @ 0x1c0e0000 known to work for IOFPGA_v010f? Or what could be the problem?

Best,

Hesham

  • 0

    Hi Hesham,

     

    For timer2 in the second SP804 device, after adding all the relevant code we do get the interrupts.

     

    One thing to note is that the Linux kernel brings up only the first SP804 timer instance when multiple instances are provided.