- struct spider_pic *pic = &spider_pics[chip];
- int i, virq;
-
- /* Map registers */
- pic->regs = ioremap(addr, 0x1000);
- if (pic->regs == NULL)
- panic("spider_pic: can't map registers !");
-
- /* Allocate a host */
- pic->host = irq_alloc_host(IRQ_HOST_MAP_LINEAR, SPIDER_SRC_COUNT,
- &spider_host_ops, SPIDER_IRQ_INVALID);
- if (pic->host == NULL)
- panic("spider_pic: can't allocate irq host !");
- pic->host->host_data = pic;
-
- /* Fill out other bits */
- pic->of_node = of_node_get(of_node);
-
- /* Go through all sources and disable them */
- for (i = 0; i < SPIDER_SRC_COUNT; i++) {
- void __iomem *cfg = pic->regs + TIR_CFGA + 8 * i;
- out_be32(cfg, in_be32(cfg) & ~0x30000000u);
- }
-
- /* do not mask any interrupts because of level */
- out_be32(pic->regs + TIR_MSK, 0x0);
-
- /* enable interrupt packets to be output */
- out_be32(pic->regs + TIR_PIEN, in_be32(pic->regs + TIR_PIEN) | 0x1);
-
- /* Hook up the cascade interrupt to the iic and nodeid */
- virq = spider_find_cascade_and_node(pic);
- if (virq == NO_IRQ)
- return;
- set_irq_data(virq, pic);
- set_irq_chained_handler(virq, spider_irq_cascade);
-
- printk(KERN_INFO "spider_pic: node %d, addr: 0x%lx %s\n",
- pic->node_id, addr, of_node->full_name);
-
- /* Enable the interrupt detection enable bit. Do this last! */
- out_be32(pic->regs + TIR_DEN, in_be32(pic->regs + TIR_DEN) | 0x1);
-}
-
-void __init spider_init_IRQ(void)
-{
- struct resource r;