On Wed, Sep 03, 2008 at 03:55:41PM -0700, Oscar Takeshita wrote: > I've been trying to hook an IRQ on a modified mpc8349emitx board without > success. > > The IRQ is hooked physically to IRQ1/GPIO2[13] on the mpc8349e. No other > devices are > tied to this pin. > > I'm using uboot 1.2.0 and kernel 2.6.22.19. > > Do I need to have a dts entry for this interrupt in order to make > request_irq() succeed? > > How can I find the IRQ number? I tried probe_irq_on/off unfortunately it > did not work. > Would it be MPC83xx_IRQ_EXT1 in arch/powerpc/include/asm/mpc83xx.h ? > > I'm new doing kernel work. Any hints appreciated.
You need to describe the IRQ in a device tree node and use irq_of_parse_and_map(). request_irq() takes virtual IRQ numbers. Maybe we should put together an arch/powerpc FAQ... -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
