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/* $OpenBSD: ufshci_fdt.c,v 1.2 2024/10/08 00:46:29 jsg Exp $ */
/*
* Copyright (c) 2024 Marcus Glocker <mglocker@openbsd.org>
*
* 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 <machine/fdt.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_clock.h>
#include <dev/ofw/ofw_misc.h>
#include <dev/ofw/fdt.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <dev/ic/ufshcivar.h>
int ufshci_fdt_match(struct device *, void *, void *);
void ufshci_fdt_attach(struct device *, struct device *, void *);
const struct cfattach ufshci_fdt_ca = {
sizeof(struct ufshci_softc),
ufshci_fdt_match,
ufshci_fdt_attach,
NULL,
ufshci_activate
};
int
ufshci_fdt_match(struct device *parent, void *match, void *aux)
{
struct fdt_attach_args *faa = aux;
return OF_is_compatible(faa->fa_node, "jedec,ufs-2.0");
}
void
ufshci_fdt_attach(struct device *parent, struct device *self, void *aux)
{
struct ufshci_softc *sc = (struct ufshci_softc *)self;
struct fdt_attach_args *faa = aux;
void *ih;
if (faa->fa_nreg < 1)
return;
sc->sc_iot = faa->fa_iot;
sc->sc_ios = faa->fa_reg[0].size;
sc->sc_dmat = faa->fa_dmat;
if (bus_space_map(sc->sc_iot, faa->fa_reg[0].addr,
faa->fa_reg[0].size, 0, &sc->sc_ioh)) {
printf(": can't map registers\n");
return;
}
ih = fdt_intr_establish(faa->fa_node, IPL_BIO,
ufshci_intr, sc, sc->sc_dev.dv_xname);
if (ih == NULL) {
printf(": can't establish interrupt\n");
goto unmap;
}
clock_set_assigned(faa->fa_node);
clock_enable_all(faa->fa_node);
phy_enable(faa->fa_node, "ufsphy");
if (ufshci_attach(sc) != 0)
goto irq;
return;
irq:
fdt_intr_disestablish(ih);
unmap:
bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
}
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