Re: IRQ2-4 number to use on mpc83xx?
On Tue, 2008-09-23 at 22:18 +0200, Joakim Tjernlund wrote: On Tue, 2008-09-23 at 13:08 +0200, Joakim Tjernlund wrote: On Tue, 2008-09-23 at 11:08 +0200, Andre Schwarz wrote: I can only tell how I do on MPC834x : Table 8-6. IVEC/CVEC/MVEC Field Definition Interrupt ID Number Interrupt Meaning 17 IRQ1 18 IRQ2 19 IRQ3 20 IRQ4 21 IRQ5 22 IRQ6 23 IRQ7 48 IRQ0 Given this I can use this dts section for PCI devices connected @ IRQ0 and IRQ1 interrupt-map = 0x5800 0 0 1 ipic 0x30 0x8 0x6000 0 0 1 ipic 0x11 0x8 0x6000 0 0 2 ipic 0x11 0x8; You should be able to use IRQ-Nr 18-20 for IRQ2-4. Yes, that makes sense. Thanks. Jocke OK, finally figured it out, see below, but I get a SEGV if I use IRQ_TYPE_EDGE_FALLING as below. IRQ_TYPE_EDGE_FALLING works. [SNIP] What am I missing? Kernel is 2.6.25 I was missing a set_irq_type(info-irq, IRQ_TYPE_EDGE_FALLING) Works now. Jocke ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
Re: IRQ2-4 number to use on mpc83xx?
I can only tell how I do on MPC834x : Table 8-6. IVEC/CVEC/MVEC Field Definition Interrupt ID Number Interrupt Meaning 17 IRQ1 18 IRQ2 19 IRQ3 20 IRQ4 21 IRQ5 22 IRQ6 23 IRQ7 48 IRQ0 Given this I can use this dts section for PCI devices connected @ IRQ0 and IRQ1 interrupt-map = 0x5800 0 0 1 ipic 0x30 0x8 0x6000 0 0 1 ipic 0x11 0x8 0x6000 0 0 2 ipic 0x11 0x8; You should be able to use IRQ-Nr 18-20 for IRQ2-4. regards, Andre Tjernlund schrieb: I am trying to figure out what IRQ number I should use for external IRQ pins IRQ2-4. Can somebody please drop me a note on how the IRQ numbering works? Jocke ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev MATRIX VISION GmbH, Talstraße 16, DE-71570 Oppenweiler - Registergericht: Amtsgericht Stuttgart, HRB 271090 Geschäftsführer: Gerhard Thullner, Werner Armingeon, Uwe Furtner ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
Re: IRQ2-4 number to use on mpc83xx?
On Tue, 2008-09-23 at 11:08 +0200, Andre Schwarz wrote: I can only tell how I do on MPC834x : Table 8-6. IVEC/CVEC/MVEC Field Definition Interrupt ID Number Interrupt Meaning 17 IRQ1 18 IRQ2 19 IRQ3 20 IRQ4 21 IRQ5 22 IRQ6 23 IRQ7 48 IRQ0 Given this I can use this dts section for PCI devices connected @ IRQ0 and IRQ1 interrupt-map = 0x5800 0 0 1 ipic 0x30 0x8 0x6000 0 0 1 ipic 0x11 0x8 0x6000 0 0 2 ipic 0x11 0x8; You should be able to use IRQ-Nr 18-20 for IRQ2-4. Yes, that makes sense. Thanks. Jocke ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
Re: IRQ2-4 number to use on mpc83xx?
On Tue, 2008-09-23 at 13:08 +0200, Joakim Tjernlund wrote:
On Tue, 2008-09-23 at 11:08 +0200, Andre Schwarz wrote:
I can only tell how I do on MPC834x :
Table 8-6. IVEC/CVEC/MVEC Field Definition
Interrupt ID Number Interrupt Meaning
17 IRQ1
18 IRQ2
19 IRQ3
20 IRQ4
21 IRQ5
22 IRQ6
23 IRQ7
48 IRQ0
Given this I can use this dts section for PCI devices connected @ IRQ0
and IRQ1
interrupt-map = 0x5800 0 0 1 ipic 0x30 0x8
0x6000 0 0 1 ipic 0x11 0x8
0x6000 0 0 2 ipic 0x11 0x8;
You should be able to use IRQ-Nr 18-20 for IRQ2-4.
Yes, that makes sense. Thanks.
Jocke
OK, finally figured it out, see below, but I get a SEGV if I use
IRQ_TYPE_EDGE_FALLING as below. IRQ_TYPE_EDGE_FALLING works.
info-irq = irq_create_mapping(NULL, 19); /* IRQ3 */
printk(KERN_ERR IRQ map from %d to %ld\n, 19, info-irq);
info-irq_flags = IRQ_TYPE_EDGE_FALLING;
pdev = platform_device_register_simple(uio_irq, 3, r, 0);
if (IS_ERR(pdev)) {
ret = PTR_ERR(pdev);
printk(uio_irq: simple returned :%d\n, ret);
goto err_out;
}
if ((ret = uio_register_device(pdev-dev, info))) {
printk(uio_register_device: returned :%d\n, ret);
goto err_out;
}
The SEGV is in kernel/irq/manage.c, around line 375. Both
desc-chip-enable and desc-chip-startup are NULL:
if (!(desc-status IRQ_NOAUTOEN)) {
desc-depth = 0;
desc-status = ~IRQ_DISABLED;
if (desc-chip-startup)
desc-chip-startup(irq);
else
desc-chip-enable(irq);
} else
What am I missing? Kernel is 2.6.25
Jocke
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IRQ2-4 number to use on mpc83xx?
I am trying to figure out what IRQ number I should use for external IRQ pins IRQ2-4. Can somebody please drop me a note on how the IRQ numbering works? Jocke ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
