void
isa_init(device_t dev)
{
device_t bridge;
int i;
/* The parent of the bus must be a PCI-ISA bridge. */
bridge = device_get_parent(dev);
isab_node = ofw_bus_get_node(bridge);
isab_nrange = OF_getprop_alloc(isab_node, "ranges",
sizeof(*isab_ranges), (void **)&isab_ranges);
if (isab_nrange <= 0)
panic("isa_init: cannot get bridge range property");
ofw_bus_setup_iinfo(isab_node, &isa_iinfo, sizeof(ofw_isa_intr_t));
isa_setup_children(dev, isab_node);
for (i = isab_nrange - 1; i >= 0; i--) {
switch(ISAB_RANGE_SPACE(&isab_ranges[i])) {
case ISAR_SPACE_IO:
/* This is probably always 0. */
isa_io_base = ISAB_RANGE_PHYS(&isab_ranges[i]);
isa_io_limit = isab_ranges[i].size;
break;
case ISAR_SPACE_MEM:
/* This is probably always 0. */
isa_mem_base = ISAB_RANGE_PHYS(&isab_ranges[i]);
isa_mem_limit = isab_ranges[i].size;
break;
}
}
}
void
isa_init(device_t dev)
{
device_t bridge;
phandle_t node;
u_int32_t ino;
struct isa_ranges *br;
int nbr, i;
/* The parent of the bus must be a PCI-ISA bridge. */
bridge = device_get_parent(dev);
isab_node = ofw_pci_node(bridge);
nbr = OF_getprop_alloc(isab_node, "ranges", sizeof(*br), (void **)&br);
if (nbr <= 0)
panic("isa_init: cannot get bridge range property");
/*
* This is really a bad kluge; however, it is needed to provide
* isa_irq_pending().
*/
for (i = 0; i < 8; i++)
isa_ino[i] = ORIR_NOTFOUND;
for (node = OF_child(isab_node); node != 0; node = OF_peer(node)) {
if (OF_getprop(node, "interrupts", &ino, sizeof(ino)) == -1)
continue;
if (ino > 7)
panic("isa_init: XXX: ino too large");
isa_ino[ino] = ofw_bus_route_intr(node, ino,
ofw_pci_orb_callback);
}
for (nbr -= 1; nbr >= 0; nbr--) {
switch(ISAB_RANGE_SPACE(br + nbr)) {
case ISAR_SPACE_IO:
/* This is probably always 0. */
isa_io_base = ISAB_RANGE_PHYS(&br[nbr]);
isa_io_limit = br[nbr].size;
isa_io_hdl = SPARCBUS_GET_BUS_HANDLE(bridge, SBBT_IO,
isa_io_base, &isa_io_bt);
break;
case ISAR_SPACE_MEM:
/* This is probably always 0. */
isa_mem_base = ISAB_RANGE_PHYS(&br[nbr]);
isa_mem_limit = br[nbr].size;
isa_mem_hdl = SPARCBUS_GET_BUS_HANDLE(bridge, SBBT_MEM,
isa_mem_base, &isa_mem_bt);
break;
}
}
free(br, M_OFWPROP);
}
