void __init ebus_init(void)
{
struct pci_pbm_info *pbm;
struct linux_ebus_device *dev;
struct linux_ebus *ebus;
struct pci_dev *pdev;
struct pcidev_cookie *cookie;
int nd, ebusnd, is_rio;
int num_ebus = 0;
pdev = find_next_ebus(NULL, &is_rio);
if (!pdev) {
printk("ebus: No EBus's found.\n");
return;
}
cookie = pdev->sysdata;
ebusnd = cookie->prom_node;
ebus_chain = ebus = ebus_alloc(sizeof(struct linux_ebus));
ebus->next = NULL;
ebus->is_rio = is_rio;
while (ebusnd) {
/* SUNW,pci-qfe uses four empty ebuses on it.
I think we should not consider them here,
as they have half of the properties this
code expects and once we do PCI hot-plug,
we'd have to tweak with the ebus_chain
in the runtime after initialization. -jj */
if (!prom_getchild (ebusnd)) {
pdev = find_next_ebus(pdev, &is_rio);
if (!pdev) {
if (ebus == ebus_chain) {
ebus_chain = NULL;
printk("ebus: No EBus's found.\n");
return;
}
break;
}
ebus->is_rio = is_rio;
cookie = pdev->sysdata;
ebusnd = cookie->prom_node;
continue;
}
printk("ebus%d:", num_ebus);
prom_getstring(ebusnd, "name", ebus->prom_name, sizeof(ebus->prom_name));
ebus->index = num_ebus;
ebus->prom_node = ebusnd;
ebus->self = pdev;
ebus->parent = pbm = cookie->pbm;
ebus_ranges_init(ebus);
ebus_intmap_init(ebus);
nd = prom_getchild(ebusnd);
if (!nd)
goto next_ebus;
ebus->devices = ebus_alloc(sizeof(struct linux_ebus_device));
dev = ebus->devices;
dev->next = NULL;
dev->children = NULL;
dev->bus = ebus;
fill_ebus_device(nd, dev);
while ((nd = prom_getsibling(nd)) != 0) {
dev->next = ebus_alloc(sizeof(struct linux_ebus_device));
dev = dev->next;
dev->next = NULL;
dev->children = NULL;
dev->bus = ebus;
fill_ebus_device(nd, dev);
}
next_ebus:
printk("\n");
pdev = find_next_ebus(pdev, &is_rio);
if (!pdev)
break;
cookie = pdev->sysdata;
ebusnd = cookie->prom_node;
ebus->next = ebus_alloc(sizeof(struct linux_ebus));
ebus = ebus->next;
ebus->next = NULL;
ebus->is_rio = is_rio;
++num_ebus;
}
#ifdef CONFIG_SUN_AUXIO
auxio_probe();
#endif
}
void __init ebus_init(void)
{
struct pci_pbm_info *pbm;
struct linux_ebus_device *dev;
struct linux_ebus *ebus;
struct pci_dev *pdev;
struct pcidev_cookie *cookie;
struct device_node *dp;
int is_rio;
int num_ebus = 0;
pdev = find_next_ebus(NULL, &is_rio);
if (!pdev) {
printk("ebus: No EBus's found.\n");
return;
}
cookie = pdev->sysdata;
dp = cookie->prom_node;
ebus_chain = ebus = ebus_alloc(sizeof(struct linux_ebus));
ebus->next = NULL;
ebus->is_rio = is_rio;
while (dp) {
struct device_node *child;
/* SUNW,pci-qfe uses four empty ebuses on it.
I think we should not consider them here,
as they have half of the properties this
code expects and once we do PCI hot-plug,
we'd have to tweak with the ebus_chain
in the runtime after initialization. -jj */
if (!dp->child) {
pdev = find_next_ebus(pdev, &is_rio);
if (!pdev) {
if (ebus == ebus_chain) {
ebus_chain = NULL;
printk("ebus: No EBus's found.\n");
return;
}
break;
}
ebus->is_rio = is_rio;
cookie = pdev->sysdata;
dp = cookie->prom_node;
continue;
}
printk("ebus%d:", num_ebus);
ebus->index = num_ebus;
ebus->prom_node = dp;
ebus->self = pdev;
ebus->parent = pbm = cookie->pbm;
ebus->ofdev.node = dp;
ebus->ofdev.dev.parent = &pdev->dev;
ebus->ofdev.dev.bus = &ebus_bus_type;
sprintf(ebus->ofdev.dev.bus_id, "ebus%d", num_ebus);
/* Register with core */
if (of_device_register(&ebus->ofdev) != 0)
printk(KERN_DEBUG "ebus: device registration error for %s!\n",
dp->path_component_name);
child = dp->child;
if (!child)
goto next_ebus;
ebus->devices = ebus_alloc(sizeof(struct linux_ebus_device));
dev = ebus->devices;
dev->next = NULL;
dev->children = NULL;
dev->bus = ebus;
fill_ebus_device(child, dev);
while ((child = child->sibling) != NULL) {
dev->next = ebus_alloc(sizeof(struct linux_ebus_device));
dev = dev->next;
dev->next = NULL;
dev->children = NULL;
dev->bus = ebus;
fill_ebus_device(child, dev);
}
next_ebus:
printk("\n");
pdev = find_next_ebus(pdev, &is_rio);
if (!pdev)
break;
cookie = pdev->sysdata;
dp = cookie->prom_node;
ebus->next = ebus_alloc(sizeof(struct linux_ebus));
ebus = ebus->next;
ebus->next = NULL;
ebus->is_rio = is_rio;
++num_ebus;
}
pci_dev_put(pdev); /* XXX for the case, when ebusnd is 0, is it OK? */
}
