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/* $OpenBSD: expower.c,v 1.7 2017/03/10 21:26:19 kettenis Exp $ */
/*
* Copyright (c) 2012-2013 Patrick Wildt <patrick@blueri.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/intr.h>
#include <machine/bus.h>
#include <machine/fdt.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_misc.h>
#include <dev/ofw/fdt.h>
#define HREAD4(sc, reg) \
(bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, (reg)))
#define HWRITE4(sc, reg, val) \
bus_space_write_4((sc)->sc_iot, (sc)->sc_ioh, (reg), (val))
#define HSET4(sc, reg, bits) \
HWRITE4((sc), (reg), HREAD4((sc), (reg)) | (bits))
#define HCLR4(sc, reg, bits) \
HWRITE4((sc), (reg), HREAD4((sc), (reg)) & ~(bits))
struct expower_softc {
struct device sc_dev;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
};
int expower_match(struct device *, void *, void *);
void expower_attach(struct device *, struct device *, void *);
struct cfattach expower_ca = {
sizeof (struct expower_softc), expower_match, expower_attach
};
struct cfdriver expower_cd = {
NULL, "expower", DV_DULL
};
int
expower_match(struct device *parent, void *match, void *aux)
{
struct fdt_attach_args *faa = aux;
return (OF_is_compatible(faa->fa_node, "samsung,exynos5250-pmu") ||
OF_is_compatible(faa->fa_node, "samsung,exynos5420-pmu"));
}
void
expower_attach(struct device *parent, struct device *self, void *aux)
{
struct expower_softc *sc = (struct expower_softc *)self;
struct fdt_attach_args *faa = aux;
sc->sc_iot = faa->fa_iot;
if (bus_space_map(sc->sc_iot, faa->fa_reg[0].addr,
faa->fa_reg[0].size, 0, &sc->sc_ioh))
panic("%s: bus_space_map failed!", __func__);
printf("\n");
regmap_register(faa->fa_node, sc->sc_iot, sc->sc_ioh,
faa->fa_reg[0].size);
}
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