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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. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
69 lines
1.3 KiB
Text
69 lines
1.3 KiB
Text
/*
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* Device Tree Source for OMAP2 SoC
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*/
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/include/ "skeleton.dtsi"
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/ {
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compatible = "ti,omap2430", "ti,omap2420", "ti,omap2";
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aliases {
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serial0 = &uart1;
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serial1 = &uart2;
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serial2 = &uart3;
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};
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cpus {
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cpu@0 {
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compatible = "arm,arm1136jf-s";
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};
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};
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soc {
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compatible = "ti,omap-infra";
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mpu {
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compatible = "ti,omap2-mpu";
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ti,hwmods = "mpu";
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};
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};
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ocp {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges;
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ti,hwmods = "l3_main";
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intc: interrupt-controller@1 {
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compatible = "ti,omap2-intc";
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interrupt-controller;
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#interrupt-cells = <1>;
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ti,intc-size = <96>;
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reg = <0x480FE000 0x1000>;
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};
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uart1: serial@4806a000 {
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compatible = "ti,omap2-uart";
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ti,hwmods = "uart1";
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clock-frequency = <48000000>;
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};
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uart2: serial@4806c000 {
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compatible = "ti,omap2-uart";
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ti,hwmods = "uart2";
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clock-frequency = <48000000>;
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};
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uart3: serial@4806e000 {
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compatible = "ti,omap2-uart";
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ti,hwmods = "uart3";
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clock-frequency = <48000000>;
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};
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};
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};
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