int
eeprom_attach(device_t dev, phandle_t node, bus_space_tag_t bt,
bus_space_handle_t bh)
{
struct timespec ts;
struct idprom *idp;
char *model;
int error, i;
u_int32_t h;
if (OF_getprop_alloc(node, "model", 1, (void **)&model) == -1)
panic("eeprom_attach: no model property");
/* Our TOD clock year 0 is 1968 */
if ((error = mk48txx_attach(dev, bt, bh, model, 1968)) != 0) {
device_printf(dev, "Can't attach %s tod clock", model);
free(model, M_OFWPROP);
return (error);
}
/* XXX: register clock device */
/* Get the host ID from the prom. */
idp = (struct idprom *)((u_long)bh + IDPROM_OFFSET);
h = bus_space_read_1(bt, bh, IDPROM_OFFSET +
offsetof(struct idprom, id_machine)) << 24;
for (i = 0; i < 3; i++) {
h |= bus_space_read_1(bt, bh, IDPROM_OFFSET +
offsetof(struct idprom, id_hostid[i])) << ((2 - i) * 8);
}
/* XXX: register host id */
device_printf(dev, "hostid %x\n", (u_int)h);
if (bootverbose) {
mk48txx_gettime(dev, &ts);
device_printf(dev, "current time: %ld.%09ld\n", (long)ts.tv_sec,
ts.tv_nsec);
}
return (0);
}
static int
eeprom_attach(device_t dev)
{
struct mk48txx_softc *sc;
struct timespec ts;
int error, rid;
sc = device_get_softc(dev);
mtx_init(&sc->sc_mtx, "eeprom_mtx", NULL, MTX_DEF);
rid = 0;
sc->sc_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (sc->sc_res == NULL) {
device_printf(dev, "cannot allocate resources\n");
error = ENXIO;
goto fail_mtx;
}
if ((sc->sc_model = ofw_bus_get_model(dev)) == NULL) {
device_printf(dev, "cannot determine model\n");
error = ENXIO;
goto fail_res;
}
/* Our TOD clock year 0 is 1968. */
sc->sc_year0 = 1968;
/* Use default register read/write functions. */
sc->sc_flag = 0;
/*
* Generally, if the `eeprom' node has a `watchdog-enable' property
* this indicates that the watchdog part of the MK48T59 is usable,
* i.e. its RST pin is connected to the WDR input of the CPUs or
* something. The `eeprom' nodes of E250, E450 and the clock board
* variant in Exx00 have such properties. For E250 and E450 the
* watchdog just works, for Exx00 the delivery of the reset signal
* apparently has to be additionally enabled elsewhere...
* The OFW environment variable `watchdog-reboot?' is ignored for
* these watchdogs as they always trigger a system reset when they
* time out and can't be made to issue a break to the boot monitor
* instead.
*/
if (OF_getproplen(ofw_bus_get_node(dev), "watchdog-enable") != -1 &&
(strcmp(sparc64_model, "SUNW,Ultra-250") == 0 ||
strcmp(sparc64_model, "SUNW,Ultra-4") == 0))
sc->sc_flag |= MK48TXX_WDOG_REGISTER | MK48TXX_WDOG_ENABLE_WDS;
if ((error = mk48txx_attach(dev)) != 0) {
device_printf(dev, "cannot attach time of day clock\n");
goto fail_res;
}
if (bootverbose) {
if (mk48txx_gettime(dev, &ts) != 0)
device_printf(dev, "invalid time");
else
device_printf(dev, "current time: %ld.%09ld\n",
(long)ts.tv_sec, ts.tv_nsec);
}
return (0);
fail_res:
bus_release_resource(dev, SYS_RES_MEMORY, rid, sc->sc_res);
fail_mtx:
mtx_destroy(&sc->sc_mtx);
return (error);
}
