On Wed, 2015-10-14 at 19:11 -0500, Scott Wood wrote: > On Wed, 2015-10-14 at 19:37 +0000, Joakim Tjernlund wrote: > > I am trying to figure out how to describe/map external IRQ7 in the > > devicetree. > > > > Basically either IRQ7 to be left alone by Linux(becase u-boot already set > > it up) > > or map IRQ7 to sie 0(MPIC_EILR7=0xf0) and prio=0xf(MPIC_EIVPR7=0x4f0000) > > > > There is no need for SW handler because IRQ7 will be routed to the DDR > > controller > > and case an automatic Self Refresh just before CPU reset. > > > > I cannot figure out how to do this. Any ideas? > > > > If not possible from devicetree, then can one do it from board code? > > The device tree describes the hardware. Priority is configuration, and > thus > doesn't belong there. You can call mpic_irq_set_priority() from board code. > > Likewise, the fact that you want to route irq7 to sie0 is configuration, > not > hardware description. At most, the device tree should describe is what is > connected to each sie output. There's no current Linux support for routing > an interrupt to sie or anything other than "int".
BTW, priority is meaningless for interrupts routed to sie. -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
