ihandle_t
prom_memory_ihandle(void)
{
static ihandle_t imemory;
if (imemory != (ihandle_t)0)
return (imemory);
if (prom_getproplen(prom_chosennode(), "memory") != sizeof (ihandle_t))
return (imemory = (ihandle_t)-1);
(void) prom_getprop(prom_chosennode(), "memory", (caddr_t)(&imemory));
imemory = (ihandle_t)prom_decode_int(imemory);
return (imemory);
}
void
map_wellknown_devices()
{
struct wkdevice *wkp;
phandle_t ieeprom;
pnode_t root;
uint_t stick_freq;
/*
* if there is a chosen eeprom, note it (for have_eeprom())
*/
if (GETPROPLEN(prom_chosennode(), CHOSEN_EEPROM) ==
sizeof (phandle_t) &&
GETPROP(prom_chosennode(), CHOSEN_EEPROM, (caddr_t)&ieeprom) != -1)
chosen_eeprom = (pnode_t)prom_decode_int(ieeprom);
root = prom_nextnode((pnode_t)0);
/*
* Get System clock frequency from root node if it exists.
*/
if (GETPROP(root, "stick-frequency", (caddr_t)&stick_freq) != -1)
system_clock_freq = stick_freq;
map_wellknown(NEXT((pnode_t)0));
/*
* See if it worked
*/
for (wkp = wkdevice; wkp->wk_namep; ++wkp) {
if (wkp->wk_flags == V_MUSTHAVE) {
cmn_err(CE_PANIC, "map_wellknown_devices: required "
"device %s not mapped", wkp->wk_namep);
}
}
/*
* all sun4u systems must have an IO bus, i.e. sbus or pcibus
*/
if (niobus == 0)
cmn_err(CE_PANIC, "map_wellknown_devices: no i/o bus node");
check_cpus_ver();
check_cpus_set();
}
