On Wed, Mar 11, 2015 at 08:48:15AM +0800, Shawn Guo wrote: > On Sun, Mar 01, 2015 at 11:41:29PM +0100, Stefan Agner wrote: > > Add the Miscellaneous System Control Module (MSCM) to the base > > device tree for Vybrid SoC's. This module contains registers > > to get information of the individual and current (accessing) > > CPU. In a second block, there is an interrupt router, which > > handles the routing of the interrupts between the two CPU cores > > on VF6xx variants of the SoC. However, also on single core > > variants the interrupt router needs to be configured in order > > to receive interrupts on the CPU's interrupt controller. Almost > > all peripheral interrupts are routed through the router, hence > > the MSCM module is the default interrupt parent for this SoC. > > > > In a earlier commit the interrupt nodes were moved out of the > > peripheral nodes and specified in the CPU specific vf500.dtsi > > device tree. This allowed to use the base device tree vfxxx.dtsi > > also for a Cortex-M4 specific device tree, which uses different > > interrupt nodes due to the NVIC interrupt controller. However, > > since the interrupt parent for peripherals is the MSCM module > > independently which CPU the device tree is used for, we can move > > the interrupt nodes into the base device tree vfxxx.dtsi again. > > Depending on which CPU this base device tree will be used with, > > the correct parent interrupt controller has to be assigned to > > the MSCM-IR node (GIC or NVIC). The driver takes care of the > > parent interrupt controller specific needs (interrupt-cells). > > > > Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx> > > Signed-off-by: Stefan Agner <stefan@xxxxxxxx> > > Stefan, > > I guess this patch has a run-time dependency on the first two in the > series, right? Or put it another way, if I apply this single patch on > my branch, the dtb and kernel built from the same branch do not work > together, right? If so, we will need to either wait for the first two > hit mainline or pull Jason's irqchip/vybrid branch into my tree as > prerequisite (irqchip/vybrid needs to be stable). No problem, I'll only add patches on top of this if needed. no rebasing. thx, Jason. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
