void __init time_init(void)
{
if (pcic_present())
pci_time_init();
else
sbus_time_init();
}
void __init time_init(void)
{
#ifdef CONFIG_PCI
extern void pci_time_init(void);
if (pcic_present()) {
pci_time_init();
return;
}
#endif
sbus_time_init();
}
static int __init sbus_init(void)
{
int nd, this_sbus, sbus_devs, topnd, iommund;
unsigned int sbus_clock;
struct sbus_bus *sbus;
struct sbus_dev *this_dev;
int num_sbus = 0; /* How many did we find? */
#ifdef CONFIG_SPARC32
register_proc_sparc_ioport();
#endif
#ifdef CONFIG_SUN4
sun4_dvma_init();
return 0;
#endif
topnd = prom_getchild(prom_root_node);
/* Finding the first sbus is a special case... */
iommund = 0;
if(sparc_cpu_model == sun4u) {
nd = prom_searchsiblings(topnd, "sbus");
if(nd == 0) {
#ifdef CONFIG_PCI
if (!pcic_present()) {
prom_printf("Neither SBUS nor PCI found.\n");
prom_halt();
} else {
#ifdef CONFIG_SPARC64
firetruck_init();
#endif
}
return 0;
#else
prom_printf("YEEE, UltraSparc sbus not found\n");
prom_halt();
#endif
}
} else if(sparc_cpu_model == sun4d) {
if((iommund = prom_searchsiblings(topnd, "io-unit")) == 0 ||
(nd = prom_getchild(iommund)) == 0 ||
(nd = prom_searchsiblings(nd, "sbi")) == 0) {
panic("sbi not found");
}
} else if((nd = prom_searchsiblings(topnd, "sbus")) == 0) {
if((iommund = prom_searchsiblings(topnd, "iommu")) == 0 ||
(nd = prom_getchild(iommund)) == 0 ||
(nd = prom_searchsiblings(nd, "sbus")) == 0) {
#ifdef CONFIG_PCI
if (!pcic_present()) {
prom_printf("Neither SBUS nor PCI found.\n");
prom_halt();
}
return 0;
#else
/* No reason to run further - the data access trap will occur. */
panic("sbus not found");
#endif
}
}
/* Ok, we've found the first one, allocate first SBus struct
* and place in chain.
*/
sbus = sbus_root = kmalloc(sizeof(struct sbus_bus), GFP_ATOMIC);
sbus->next = NULL;
sbus->prom_node = nd;
this_sbus = nd;
if(iommund && sparc_cpu_model != sun4u && sparc_cpu_model != sun4d)
iommu_init(iommund, sbus);
/* Loop until we find no more SBUS's */
while(this_sbus) {
#ifdef CONFIG_SPARC64
/* IOMMU hides inside SBUS/SYSIO prom node on Ultra. */
if(sparc_cpu_model == sun4u) {
extern void sbus_iommu_init(int prom_node, struct sbus_bus *sbus);
sbus_iommu_init(this_sbus, sbus);
}
#endif /* CONFIG_SPARC64 */
#ifdef CONFIG_SPARC32
if (sparc_cpu_model == sun4d)
iounit_init(this_sbus, iommund, sbus);
#endif /* CONFIG_SPARC32 */
printk("sbus%d: ", num_sbus);
sbus_clock = prom_getint(this_sbus, "clock-frequency");
if(sbus_clock == -1)
sbus_clock = (25*1000*1000);
printk("Clock %d.%d MHz\n", (int) ((sbus_clock/1000)/1000),
(int) (((sbus_clock/1000)%1000 != 0) ?
(((sbus_clock/1000)%1000) + 1000) : 0));
prom_getstring(this_sbus, "name",
sbus->prom_name, sizeof(sbus->prom_name));
sbus->clock_freq = sbus_clock;
#ifdef CONFIG_SPARC32
if (sparc_cpu_model == sun4d) {
sbus->devid = prom_getint(iommund, "device-id");
sbus->board = prom_getint(iommund, "board#");
}
#endif
sbus_bus_ranges_init(iommund, sbus);
sbus_devs = prom_getchild(this_sbus);
if (!sbus_devs) {
sbus->devices = NULL;
goto next_bus;
}
sbus->devices = kmalloc(sizeof(struct sbus_dev), GFP_ATOMIC);
this_dev = sbus->devices;
this_dev->next = NULL;
this_dev->bus = sbus;
this_dev->parent = NULL;
fill_sbus_device(sbus_devs, this_dev);
/* Should we traverse for children? */
if(prom_getchild(sbus_devs)) {
/* Allocate device node */
this_dev->child = kmalloc(sizeof(struct sbus_dev),
GFP_ATOMIC);
/* Fill it */
this_dev->child->bus = sbus;
this_dev->child->next = NULL;
fill_sbus_device(prom_getchild(sbus_devs),
this_dev->child);
sbus_do_child_siblings(prom_getchild(sbus_devs),
this_dev->child,
this_dev,
sbus);
} else {
this_dev->child = NULL;
}
while((sbus_devs = prom_getsibling(sbus_devs)) != 0) {
/* Allocate device node */
this_dev->next = kmalloc(sizeof(struct sbus_dev),
GFP_ATOMIC);
this_dev = this_dev->next;
this_dev->next = NULL;
/* Fill it */
this_dev->bus = sbus;
this_dev->parent = NULL;
fill_sbus_device(sbus_devs, this_dev);
/* Is there a child node hanging off of us? */
if(prom_getchild(sbus_devs)) {
/* Get new device struct */
this_dev->child = kmalloc(sizeof(struct sbus_dev),
GFP_ATOMIC);
/* Fill it */
this_dev->child->bus = sbus;
this_dev->child->next = NULL;
fill_sbus_device(prom_getchild(sbus_devs),
this_dev->child);
sbus_do_child_siblings(prom_getchild(sbus_devs),
this_dev->child,
this_dev,
sbus);
} else {
this_dev->child = NULL;
}
}
/* Walk all devices and apply parent ranges. */
sbus_fixup_all_regs(sbus->devices);
dvma_init(sbus);
next_bus:
num_sbus++;
if(sparc_cpu_model == sun4u) {
this_sbus = prom_getsibling(this_sbus);
if(!this_sbus)
break;
this_sbus = prom_searchsiblings(this_sbus, "sbus");
} else if(sparc_cpu_model == sun4d) {
iommund = prom_getsibling(iommund);
if(!iommund)
break;
iommund = prom_searchsiblings(iommund, "io-unit");
if(!iommund)
break;
this_sbus = prom_searchsiblings(prom_getchild(iommund), "sbi");
} else {
this_sbus = prom_getsibling(this_sbus);
if(!this_sbus)
break;
this_sbus = prom_searchsiblings(this_sbus, "sbus");
}
if(this_sbus) {
sbus->next = kmalloc(sizeof(struct sbus_bus), GFP_ATOMIC);
sbus = sbus->next;
sbus->next = NULL;
sbus->prom_node = this_sbus;
} else {
break;
}
} /* while(this_sbus) */
if (sparc_cpu_model == sun4d) {
extern void sun4d_init_sbi_irq(void);
sun4d_init_sbi_irq();
}
#ifdef CONFIG_SPARC64
if (sparc_cpu_model == sun4u) {
firetruck_init();
}
#endif
#ifdef CONFIG_SUN_AUXIO
if (sparc_cpu_model == sun4u)
auxio_probe ();
#endif
#ifdef CONFIG_SPARC64
if (sparc_cpu_model == sun4u) {
extern void clock_probe(void);
clock_probe();
}
#endif
return 0;
}
