* Jon Hunter <jon-hunter@xxxxxx> [120612 17:45]: > When booting with device-tree on an OMAP2420H4, the kernel is hanging when > initialising the interrupts and following kernel dumps is seen ... > > [ 0.000000] ------------[ cut here ]------------ > [ 0.000000] WARNING: at arch/arm/mach-omap2/irq.c:271 omap_intc_of_init+0x50/0xb4() > [ 0.000000] unable to get intc registers > [ 0.000000] Modules linked in: > [ 0.000000] [<c001befc>] (unwind_backtrace+0x0/0xf4) from [<c0040c34>] (warn_slowpath_common+0x4c/0x64) > [ 0.000000] [<c0040c34>] (warn_slowpath_common+0x4c/0x64) from [<c0040ce0>] (warn_slowpath_fmt+0x30/0x40) > [ 0.000000] [<c0040ce0>] (warn_slowpath_fmt+0x30/0x40) from [<c066b8a4>] (omap_intc_of_init+0x50/0xb4) > [ 0.000000] [<c066b8a4>] (omap_intc_of_init+0x50/0xb4) from [<c0688b70>] (of_irq_init+0x144/0x288) > [ 0.000000] [<c0688b70>] (of_irq_init+0x144/0x288) from [<c0663294>] (init_IRQ+0x14/0x1c) > [ 0.000000] [<c0663294>] (init_IRQ+0x14/0x1c) from [<c06607fc>] (start_kernel+0x198/0x304) > [ 0.000000] [<c06607fc>] (start_kernel+0x198/0x304) from [<80008044>] (0x80008044) > [ 0.000000] ---[ end trace 1b75b31a2719ed1c ]--- > [ 0.000000] of_irq_init: children remain, but no parents > > The OMAP2 interrupt controller binding is missing the number of interrupts and > interrupt controller register address. Adding these fixes the problem. Thanks this is a good one, applying into fixes. Tony > > This is based upon latest linux-omap master (3.5-rc1) git tree. > > Signed-off-by: Jon Hunter <jon-hunter@xxxxxx> > --- > arch/arm/boot/dts/omap2.dtsi | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm/boot/dts/omap2.dtsi b/arch/arm/boot/dts/omap2.dtsi > index f2ab4ea..581cb08 100644 > --- a/arch/arm/boot/dts/omap2.dtsi > +++ b/arch/arm/boot/dts/omap2.dtsi > @@ -44,6 +44,8 @@ > compatible = "ti,omap2-intc"; > interrupt-controller; > #interrupt-cells = <1>; > + ti,intc-size = <96>; > + reg = <0x480FE000 0x1000>; > }; > > uart1: serial@4806a000 { > -- > 1.7.9.5 > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html