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sparc64: If 'slot-names' property exist, create sysfs PCI slot information.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2010-02-20 19:53:55 -08:00
parent 198d2f63a6
commit 2ef2d74775
1 changed files with 75 additions and 0 deletions
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75
arch/sparc/kernel/pci.c
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@ -1094,3 +1094,78 @@ static int __init pcibios_init(void)
return 0;
}
subsys_initcall(pcibios_init);
#ifdef CONFIG_SYSFS
static void __devinit pci_bus_slot_names(struct device_node *node,
struct pci_bus *bus)
{
const struct pci_slot_names {
u32 slot_mask;
char names[0];
} *prop;
const char *sp;
int len, i;
u32 mask;
prop = of_get_property(node, "slot-names", &len);
if (!prop)
return;
mask = prop->slot_mask;
sp = prop->names;
if (ofpci_verbose)
printk("PCI: Making slots for [%s] mask[0x%02x]\n",
node->full_name, mask);
i = 0;
while (mask) {
struct pci_slot *pci_slot;
u32 this_bit = 1 << i;
if (!(mask & this_bit)) {
i++;
continue;
}
if (ofpci_verbose)
printk("PCI: Making slot [%s]\n", sp);
pci_slot = pci_create_slot(bus, i, sp, NULL);
if (IS_ERR(pci_slot))
printk(KERN_ERR "PCI: pci_create_slot returned %ld\n",
PTR_ERR(pci_slot));
sp += strlen(sp) + 1;
mask &= ~this_bit;
i++;
}
}
static int __init of_pci_slot_init(void)
{
struct pci_bus *pbus = NULL;
while ((pbus = pci_find_next_bus(pbus)) != NULL) {
struct device_node *node;
if (pbus->self) {
struct dev_archdata *sd = pbus->self->sysdata;
/* PCI->PCI bridge */
node = sd->prom_node;
} else {
struct pci_pbm_info *pbm = pbus->sysdata;
/* Host PCI controller */
node = pbm->op->node;
}
pci_bus_slot_names(node, pbus);
}
return 0;
}
module_init(of_pci_slot_init);
#endif