diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/pseries/setup.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index bef4f683285..eb079521fbf 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -124,28 +124,32 @@ void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc) desc->chip->eoi(irq); } -static void __init xics_setup_8259_cascade(void) +static void __init pseries_setup_i8259_cascade(void) { struct device_node *np, *old, *found = NULL; - int cascade, naddr; + unsigned int cascade; const u32 *addrp; unsigned long intack = 0; + int naddr; - for_each_node_by_type(np, "interrupt-controller") + for_each_node_by_type(np, "interrupt-controller") { if (of_device_is_compatible(np, "chrp,iic")) { found = np; break; } + } + if (found == NULL) { - printk(KERN_DEBUG "xics: no ISA interrupt controller\n"); + printk(KERN_DEBUG "pic: no ISA interrupt controller\n"); return; } + cascade = irq_of_parse_and_map(found, 0); if (cascade == NO_IRQ) { - printk(KERN_ERR "xics: failed to map cascade interrupt"); + printk(KERN_ERR "pic: failed to map cascade interrupt"); return; } - pr_debug("xics: cascade mapped to irq %d\n", cascade); + pr_debug("pic: cascade mapped to irq %d\n", cascade); for (old = of_node_get(found); old != NULL ; old = np) { np = of_get_parent(old); @@ -163,7 +167,7 @@ static void __init xics_setup_8259_cascade(void) intack |= ((unsigned long)addrp[naddr-2]) << 32; } if (intack) - printk(KERN_DEBUG "xics: PCI 8259 intack at 0x%016lx\n", intack); + printk(KERN_DEBUG "pic: PCI 8259 intack at 0x%016lx\n", intack); i8259_init(found, intack); of_node_put(found); set_irq_chained_handler(cascade, pseries_8259_cascade); @@ -251,7 +255,7 @@ static void __init pseries_mpic_init_IRQ(void) static void __init pseries_xics_init_IRQ(void) { xics_init_IRQ(); - xics_setup_8259_cascade(); + pseries_setup_i8259_cascade(); } static void pseries_lpar_enable_pmcs(void) |