/*      $OpenBSD: if_bse_fdt.c,v 1.3 2026/02/22 18:44:41 mvs Exp $      */
/*
 * Copyright (c) 2020 Mark Kettenis <kettenis@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 <sys/device.h>

#include <machine/bus.h>
#include <machine/fdt.h>

#include <net/if.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>

#include <dev/ofw/openfirm.h>
#include <dev/ofw/fdt.h>

#include <dev/mii/miivar.h>
#include <dev/ic/bcmgenetvar.h>

int     bse_fdt_match(struct device *, void *, void *);
void    bse_fdt_attach(struct device *, struct device *, void *);

const struct cfattach bse_fdt_ca = {
        sizeof (struct genet_softc), bse_fdt_match, bse_fdt_attach
};

int
bse_fdt_match(struct device *parent, void *match, void *aux)
{
        struct fdt_attach_args *faa = aux;

        return (OF_is_compatible(faa->fa_node, "brcm,bcm2711-genet-v5") ||
            OF_is_compatible(faa->fa_node, "brcm,genet-v5"));
}

void
bse_fdt_attach(struct device *parent, struct device *self, void *aux)
{
        struct genet_softc *sc = (struct genet_softc *)self;
        struct fdt_attach_args *faa = aux;
        char phy_mode[16] = { 0 };
        uint32_t phy;
        int node, error;

        if (faa->fa_nreg < 1) {
                printf(": no registers\n");
                return;
        }

        sc->sc_bst = faa->fa_iot;
        sc->sc_dmat = faa->fa_dmat;

        if (bus_space_map(sc->sc_bst, faa->fa_reg[0].addr,
            faa->fa_reg[0].size, 0, &sc->sc_bsh)) {
                printf(": can't map registers\n");
                return;
        }

        sc->sc_ih = fdt_intr_establish(faa->fa_node, IPL_NET | IPL_MPSAFE,
            genet_intr, sc, sc->sc_dev.dv_xname);
        if (sc->sc_ih == NULL) {
                printf(": can't establish interrupt\n");
                goto unmap;
        }

        if (OF_getprop(faa->fa_node, "local-mac-address",
            &sc->sc_lladdr, ETHER_ADDR_LEN) != ETHER_ADDR_LEN)
                genet_lladdr_read(sc, sc->sc_lladdr);

        OF_getprop(faa->fa_node, "phy-mode", phy_mode, sizeof(phy_mode));
        if (strcmp(phy_mode, "rgmii-id") == 0)
                sc->sc_phy_mode = GENET_PHY_MODE_RGMII_ID;
        else if (strcmp(phy_mode, "rgmii-rxid") == 0)
                sc->sc_phy_mode = GENET_PHY_MODE_RGMII_RXID;
        else if (strcmp(phy_mode, "rgmii-txid") == 0)
                sc->sc_phy_mode = GENET_PHY_MODE_RGMII_TXID;
        else
                sc->sc_phy_mode = GENET_PHY_MODE_RGMII;

        /* Lookup PHY. */
        phy = OF_getpropint(faa->fa_node, "phy-handle", 0);
        node = OF_getnodebyphandle(phy);
        if (node)
                sc->sc_phy_id = OF_getpropint(node, "reg", MII_PHY_ANY);
        else
                sc->sc_phy_id = MII_PHY_ANY;

        error = genet_attach(sc);
        if (error)
                goto disestablish;

        return;

disestablish:
        fdt_intr_disestablish(sc->sc_ih);
unmap:
        bus_space_unmap(sc->sc_bst, sc->sc_bsh, faa->fa_reg[0].size);
}