On Thu, 2013-08-22 at 21:04 +0530, Saravanan S wrote: > a) I can generate MSI interrupts from End Point to Root Complex over > PCI . But the vice-versa is not possible . However i need a method to > interrupt the End Point from the Root Complex to complete my driver. > Only previous references I can find are this post > http://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/msg25765.html . > However this uses doorbells and I think may not be possible in MPC8640.
You should be able to write to the destination's MPIC registers to send a doorbell. -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
