static void
exynos_wdt_attach(device_t parent, device_t self, void *aux)
{
struct exynos_wdt_softc * const sc = device_private(self);
struct exyo_attach_args * const exyo = aux;
prop_dictionary_t dict = device_properties(self);
sc->sc_dev = self;
sc->sc_bst = exyo->exyo_core_bst;
if (bus_space_subregion(sc->sc_bst, exyo->exyo_core_bsh,
exyo->exyo_loc.loc_offset, exyo->exyo_loc.loc_size, &sc->sc_wdog_bsh)) {
aprint_error(": failed to map registers\n");
return;
}
/*
* This runs at the Exynos Pclk.
*/
prop_dictionary_get_uint32(dict, "frequency", &sc->sc_freq);
sc->sc_wdog_wtcon = exynos_wdt_wdog_read(sc, EXYNOS_WDT_WTCON);
sc->sc_wdog_armed = (sc->sc_wdog_wtcon & WTCON_ENABLE)
&& (sc->sc_wdog_wtcon & WTCON_RESET_ENABLE);
if (sc->sc_wdog_armed) {
sc->sc_wdog_prescaler =
__SHIFTOUT(sc->sc_wdog_wtcon, WTCON_PRESCALER) + 1;
sc->sc_wdog_clock_select =
__SHIFTOUT(sc->sc_wdog_wtcon, WTCON_CLOCK_SELECT);
sc->sc_freq /= sc->sc_wdog_prescaler;
sc->sc_freq >>= 4 + sc->sc_wdog_clock_select;
sc->sc_wdog_wtdat = exynos_wdt_wdog_read(sc, EXYNOS_WDT_WTDAT);
sc->sc_wdog_period = (sc->sc_wdog_wtdat + 1) / sc->sc_freq;
} else {
static void
exynos_wdt_attach(device_t parent, device_t self, void *aux)
{
struct exynos_wdt_softc * const sc = device_private(self);
// prop_dictionary_t dict = device_properties(self);
struct fdt_attach_args * const faa = aux;
bus_addr_t addr;
bus_size_t size;
int error;
if (fdtbus_get_reg(faa->faa_phandle, 0, &addr, &size) != 0) {
aprint_error(": couldn't get registers\n");
return;
}
sc->sc_dev = self;
sc->sc_bst = faa->faa_bst;
error = bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_wdog_bsh);
if (error) {
aprint_error(": couldn't map %#llx: %d", (uint64_t)addr, error);
return;
}
/*
* This runs at the Exynos Pclk.
*/
// prop_dictionary_get_uint32(dict, "frequency", &sc->sc_freq);
sc->sc_freq = 12000000; /* MJF: HACK hardwire for now */
/* Need to figure out how to get freq from dtb */
sc->sc_wdog_wtcon = exynos_wdt_wdog_read(sc, EXYNOS_WDT_WTCON);
sc->sc_wdog_armed = (sc->sc_wdog_wtcon & WTCON_ENABLE)
&& (sc->sc_wdog_wtcon & WTCON_RESET_ENABLE);
if (sc->sc_wdog_armed) {
sc->sc_wdog_prescaler =
__SHIFTOUT(sc->sc_wdog_wtcon, WTCON_PRESCALER);
sc->sc_wdog_clock_select =
__SHIFTOUT(sc->sc_wdog_wtcon, WTCON_CLOCK_SELECT);
sc->sc_freq /= sc->sc_wdog_prescaler;
sc->sc_freq >>= 4 + sc->sc_wdog_clock_select;
sc->sc_wdog_wtdat = exynos_wdt_wdog_read(sc, EXYNOS_WDT_WTDAT);
sc->sc_wdog_period = (sc->sc_wdog_wtdat + 1) / sc->sc_freq;
} else {