diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/xics.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/xics.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index a977f200db8..c3f05d4aff4 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -655,52 +655,6 @@ static void __init xics_init_one_node(struct device_node *np, } } - -static void __init xics_setup_8259_cascade(void) -{ - struct device_node *np, *old, *found = NULL; - int cascade, naddr; - const u32 *addrp; - unsigned long intack = 0; - - 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"); - return; - } - cascade = irq_of_parse_and_map(found, 0); - if (cascade == NO_IRQ) { - printk(KERN_ERR "xics: failed to map cascade interrupt"); - return; - } - pr_debug("xics: cascade mapped to irq %d\n", cascade); - - for (old = of_node_get(found); 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 "xics: PCI 8259 intack at 0x%016lx\n", intack); - i8259_init(found, intack); - of_node_put(found); - set_irq_chained_handler(cascade, pseries_8259_cascade); -} - void __init xics_init_IRQ(void) { struct device_node *np; @@ -733,8 +687,6 @@ void __init xics_init_IRQ(void) xics_setup_cpu(); - xics_setup_8259_cascade(); - ppc64_boot_msg(0x21, "XICS Done"); } |