- return (struct zilog_layout __iomem *) mapped_addr;
-}
-#else /* CONFIG_SPARC64 */
-
-/*
- * XXX The sun4d case is utterly screwed: it tries to re-walk the tree
- * (for the 3rd time) in order to find bootbus and cpu. Streamline it.
- */
-static struct zilog_layout __iomem * __init get_zs_sun4cmd(int chip, int node)
-{
- struct linux_prom_irqs irq_info[2];
- void __iomem *mapped_addr = NULL;
- int zsnode, cpunode, bbnode;
- struct linux_prom_registers zsreg[4];
- struct resource res;
-
- if (sparc_cpu_model == sun4d) {
- int walk;
-
- zsnode = 0;
- bbnode = 0;
- cpunode = 0;
- for (walk = prom_getchild(prom_root_node);
- (walk = prom_searchsiblings(walk, "cpu-unit")) != 0;
- walk = prom_getsibling(walk)) {
- bbnode = prom_getchild(walk);
- if (bbnode &&
- (bbnode = prom_searchsiblings(bbnode, "bootbus"))) {
- if ((zsnode = prom_getchild(bbnode)) == node) {
- cpunode = walk;
- break;
- }
- }
- }
- if (!walk) {
- prom_printf("SunZilog: Cannot find the %d'th bootbus on sun4d.\n",
- (chip / 2));
- prom_halt();
- }
-
- if (prom_getproperty(zsnode, "reg",
- (char *) zsreg, sizeof(zsreg)) == -1) {
- prom_printf("SunZilog: Cannot map Zilog %d\n", chip);
- prom_halt();
- }
- /* XXX Looks like an off by one? */
- prom_apply_generic_ranges(bbnode, cpunode, zsreg, 1);
- res.start = zsreg[0].phys_addr;
- res.end = res.start + (8 - 1);
- res.flags = zsreg[0].which_io | IORESOURCE_IO;
- mapped_addr = sbus_ioremap(&res, 0, 8, "Zilog Serial");
-
- } else {
- zsnode = node;
-
-#if 0 /* XXX When was this used? */
- if (prom_getintdefault(zsnode, "slave", -1) != chipid) {
- zsnode = prom_getsibling(zsnode);
- continue;
- }
-#endif
-
- /*
- * "address" is only present on ports that OBP opened
- * (from Mitch Bradley's "Hitchhiker's Guide to OBP").
- * We do not use it.
- */
-
- if (prom_getproperty(zsnode, "reg",
- (char *) zsreg, sizeof(zsreg)) == -1) {
- prom_printf("SunZilog: Cannot map Zilog %d\n", chip);
- prom_halt();
- }
- if (sparc_cpu_model == sun4m) /* Crude. Pass parent. XXX */
- prom_apply_obio_ranges(zsreg, 1);
- res.start = zsreg[0].phys_addr;
- res.end = res.start + (8 - 1);
- res.flags = zsreg[0].which_io | IORESOURCE_IO;
- mapped_addr = sbus_ioremap(&res, 0, 8, "Zilog Serial");
- }
-
- if (prom_getproperty(zsnode, "intr",
- (char *) irq_info, sizeof(irq_info))
- % sizeof(struct linux_prom_irqs)) {
- prom_printf("SunZilog: Cannot get IRQ property for Zilog %d.\n",
- chip);
- prom_halt();
- }
- if (zilog_irq == -1) {
- zilog_irq = irq_info[0].pri;
- } else if (zilog_irq != irq_info[0].pri) {
- /* XXX. Dumb. Should handle per-chip IRQ, for add-ons. */
- prom_printf("SunZilog: Inconsistent IRQ layout for Zilog %d.\n",
- chip);
- prom_halt();
- }
-
- return (struct zilog_layout __iomem *) mapped_addr;