Hi Linus, On Sun, 5 Feb 2017, Linus Walleij wrote: > On Sun, Feb 5, 2017 at 11:03 AM, Hans Ulli Kroll > <ulli.kroll@xxxxxxxxxxxxxx> wrote: > > > We need to the remove hwirq 26-28 from DT. > > First one will print this warning while boot. > > > > irq: type mismatch, failed to map hwirq-26 for /soc/interrupt-controller@48000000! > (...) > > - interrupts = <8 IRQ_TYPE_LEVEL_HIGH>, /* PCI A */ > > - <26 IRQ_TYPE_LEVEL_HIGH>, /* PCI B */ > > - <27 IRQ_TYPE_LEVEL_HIGH>, /* PCI C */ > > - <28 IRQ_TYPE_LEVEL_HIGH>; /* PCI D */ > > + interrupts = <8 IRQ_TYPE_LEVEL_HIGH>; /* chained irq PCI A-D */ > > Sure I can remove them ... just found them in the irqs.h file and thought it > made sense to add them. I'll just cut them. > > Since there is actually an internal IRQ controller in the host controller > cascading the four PCI child IRQs that we model as an irqchip, I don't > really see why they have these "PCI B-D" IRQs... anyone has a guess? I think they used some other IP vendor. from my IB 4220 sources. #define IRQ_PCI_INTA PCI_IRQ_OFFSET + 0 #ifndef CONFIG_DUAL_PCI #define IRQ_PCI_INTB PCI_IRQ_OFFSET + 1 #define IRQ_PCI_INTC PCI_IRQ_OFFSET + 2 #define IRQ_PCI_INTD PCI_IRQ_OFFSET + 3 #else #define IRQ_PCI_INTB 27 #define IRQ_PCI_INTC 28 #define IRQ_PCI_INTD 29 #endif CONFIG_DUAL_PCI is never used IRQ_PCIB - IRQ_PCID or IRQ_PCI_INTB - IRQ_PCI_INTD are also never used. You can download my original NAS 4220 here http://ulli-kroll.de/gemini/kernel.tgz Greetings Hans Ulli Kroll
