diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/pseries/setup.c | 43 |
1 files changed, 2 insertions, 41 deletions
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index eb079521fbf1..f66aa9c3b135 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -175,12 +175,9 @@ static void __init pseries_setup_i8259_cascade(void) static void __init pseries_mpic_init_IRQ(void) { - struct device_node *np, *old, *cascade = NULL; - const unsigned int *addrp; - unsigned long intack = 0; + struct device_node *np; const unsigned int *opprop; unsigned long openpic_addr = 0; - unsigned int cascade_irq; int naddr, n, i, opplen; struct mpic *mpic; @@ -213,43 +210,7 @@ static void __init pseries_mpic_init_IRQ(void) mpic_init(mpic); /* Look for cascade */ - for_each_node_by_type(np, "interrupt-controller") - if (of_device_is_compatible(np, "chrp,iic")) { - cascade = np; - break; - } - if (cascade == NULL) - return; - - cascade_irq = irq_of_parse_and_map(cascade, 0); - if (cascade_irq == NO_IRQ) { - printk(KERN_ERR "mpic: failed to map cascade interrupt"); - return; - } - - /* Check ACK type */ - for (old = of_node_get(cascade); old != NULL ; old = np) { - np = of_get_parent(old); - of_node_put(old); - if (np == NULL) - break; - if (strcmp(np->name, "pci") != 0) - continue; - addrp = of_get_property(np, "8259-interrupt-acknowledge", - NULL); - if (addrp == NULL) - continue; - naddr = of_n_addr_cells(np); - intack = addrp[naddr-1]; - if (naddr > 1) - intack |= ((unsigned long)addrp[naddr-2]) << 32; - } - if (intack) - printk(KERN_DEBUG "mpic: PCI 8259 intack at 0x%016lx\n", - intack); - i8259_init(cascade, intack); - of_node_put(cascade); - set_irq_chained_handler(cascade_irq, pseries_8259_cascade); + pseries_setup_i8259_cascade(); } static void __init pseries_xics_init_IRQ(void) |