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/* $OpenBSD: if_bse_fdt.c,v 1.1 2020/04/18 07:55:06 kettenis 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 *);
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,
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);
}
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