/*
* Finds the device node with device_type "rtc" and opens it to
* execute the get-time method
*/
static int
todds1307_setup_prom()
{
pnode_t todnode;
char tod1307_devpath[MAXNAMELEN];
if ((todnode = prom_findnode_bydevtype(prom_rootnode(),
DS1307_DEVICE_TYPE)) == OBP_NONODE)
return (DDI_FAILURE);
/*
* We now have the phandle of the rtc node, we need to open the
* node and get the ihandle
*/
if (prom_phandle_to_path(todnode, tod1307_devpath,
sizeof (tod1307_devpath)) < 0) {
cmn_err(CE_WARN, "prom_phandle_to_path failed");
return (DDI_FAILURE);
}
/*
* Now open the node and store it's ihandle
*/
if ((todds1307_ihandle = prom_open(tod1307_devpath)) == NULL) {
cmn_err(CE_WARN, "prom_open failed");
return (DDI_FAILURE);
}
return (DDI_SUCCESS);
}
/*
* find cpu node for the boot processor
*
* sets globals:
* cb_mid
*/
static pnode_t
get_cpu_node(void)
{
static char *props[] = { "upa-portid", "portid", NULL };
pnode_t node;
char *str, *name, **propp;
uint_t cpu_id;
int err;
str = "get_cpu_node";
name = "cpu";
cb_mid = getmid();
for (node = prom_rootnode(); ; node = prom_nextnode(node)) {
node = prom_findnode_bydevtype(node, name);
if (node == OBP_NONODE) {
prom_printf("\n%s: cant find node for devtype \"%s\"\n",
str, name);
break;
}
cpu_id = (uint_t)-1;
for (propp = props; *propp; propp++) {
err = get_intprop(node, *propp, &cpu_id);
CB_VPRINTF((" cpu node 0x%x, "
"prop \"%s\", cpu_id %d\n",
node, *propp, (int)cpu_id));
if (err == 0)
break;
}
if (cpu_id == cb_mid)
return (node);
}
return (OBP_NONODE);
}
