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  1. 17 Jun, 2009 1 commit
  2. 30 Jan, 2009 1 commit
    • Phil Sutter's avatar
      MIPS: RB532: Add set_type() function to IRQ struct. · 4aa0f4d7
      Phil Sutter authored
      Interrupt Group 4 mapps the GPIO pins enabled as interrupt sources;
      add defines to make this clear when addressing them later in code.
      
      The mapped GPIOs support triggering on either level high or low. To
      achieve this, the set_type() function calls rb532_gpio_set_ilevel() for
      interrupts of the above mentioned group.
      
      As there is no way to alter the triggering characteristics of the other
      interrupts, accept level triggering on status high only. (This is just a
      guess; but as the system boots fine and interrupt-driven devices (e.g.
      serial console) work with no implications, it seems to be right.)
      
      To clear a GPIO mapped IRQ, the source has to be cleared (i.e., the
      interrupt status bit of the corresponding GPIO pin). This is done inside
      rb532_disable_irq().
      
      After applying these changes I could undo most of my former "fixes" to
      pata-rb532-cf. Particularly all interrupt handling can be done
      generically via set_irq_type() as it was before.
      Signed-off-by: default avatarPhil Sutter <n0-1@freewrt.org>
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      4aa0f4d7
  3. 11 Oct, 2008 1 commit
  4. 20 Jul, 2008 1 commit