mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 09:59:32 +00:00
[PATCH] powerpc: Fix i8259 cascade IRQ
setup_irq() aborts immediately if there's no handler for the IRQ in question. So i8259_init() should set up its handlers before trying to set up the cascade on IRQ 2. With this and the patch I sent a few days ago to fix initrd on ppc32, my Pegasos now runs the arch/powerpc kernel. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
parent
ead837174d
commit
9d2ba6faa1
1 changed files with 3 additions and 2 deletions
|
@ -207,6 +207,9 @@ void __init i8259_init(unsigned long intack_addr, int offset)
|
|||
|
||||
spin_unlock_irqrestore(&i8259_lock, flags);
|
||||
|
||||
for (i = 0; i < NUM_ISA_INTERRUPTS; ++i)
|
||||
irq_desc[offset + i].handler = &i8259_pic;
|
||||
|
||||
/* reserve our resources */
|
||||
setup_irq(offset + 2, &i8259_irqaction);
|
||||
request_resource(&ioport_resource, &pic1_iores);
|
||||
|
@ -216,6 +219,4 @@ void __init i8259_init(unsigned long intack_addr, int offset)
|
|||
if (intack_addr != 0)
|
||||
pci_intack = ioremap(intack_addr, 1);
|
||||
|
||||
for (i = 0; i < NUM_ISA_INTERRUPTS; ++i)
|
||||
irq_desc[offset + i].handler = &i8259_pic;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue