- sunzilog_port_table =
- alloc_one_table(NUM_CHANNELS * sizeof(struct uart_sunzilog_port));
- sunzilog_chip_regs =
- alloc_one_table(NUM_SUNZILOG * sizeof(struct zilog_layout __iomem *));
-
- if (sunzilog_port_table == NULL || sunzilog_chip_regs == NULL) {
- prom_printf("SunZilog: Cannot allocate tables.\n");
- prom_halt();
- }
-}
-
-#ifdef CONFIG_SPARC64
-
-/* We used to attempt to use the address property of the Zilog device node
- * but that totally is not necessary on sparc64.
- */
-static struct zilog_layout __iomem * __init get_zs_sun4u(int chip, int zsnode)
-{
- unsigned long mapped_addr;
- unsigned int sun4u_ino;
- struct sbus_bus *sbus = NULL;
- struct sbus_dev *sdev = NULL;
- int err;
-
- if (central_bus == NULL) {
- for_each_sbus(sbus) {
- for_each_sbusdev(sdev, sbus) {
- if (sdev->prom_node == zsnode)
- goto found;
- }
- }
- }
- found:
- if (sdev == NULL && central_bus == NULL) {
- prom_printf("SunZilog: sdev&¢ral == NULL for "
- "Zilog %d in get_zs_sun4u.\n", chip);
- prom_halt();
- }
- if (central_bus == NULL) {
- mapped_addr =
- sbus_ioremap(&sdev->resource[0], 0,
- PAGE_SIZE,
- "Zilog Registers");
- } else {
- struct linux_prom_registers zsregs[1];
-
- err = prom_getproperty(zsnode, "reg",
- (char *) &zsregs[0],
- sizeof(zsregs));
- if (err == -1) {
- prom_printf("SunZilog: Cannot map "
- "Zilog %d regs on "
- "central bus.\n", chip);
- prom_halt();
- }
- apply_fhc_ranges(central_bus->child,
- &zsregs[0], 1);
- apply_central_ranges(central_bus, &zsregs[0], 1);
- mapped_addr =
- (((u64)zsregs[0].which_io)<<32UL) |
- ((u64)zsregs[0].phys_addr);
- }
-
- if (zilog_irq == -1) {
- if (central_bus) {
- unsigned long iclr, imap;
-
- iclr = central_bus->child->fhc_regs.uregs
- + FHC_UREGS_ICLR;
- imap = central_bus->child->fhc_regs.uregs
- + FHC_UREGS_IMAP;
- zilog_irq = build_irq(12, 0, iclr, imap);
- } else {
- err = prom_getproperty(zsnode, "interrupts",
- (char *) &sun4u_ino,
- sizeof(sun4u_ino));
- zilog_irq = sbus_build_irq(sbus_root, sun4u_ino);
- }
- }
-
- 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();
- }