/* $OpenBSD: imxocotp.c,v 1.1 2013/09/06 20:45:54 patrick Exp $ */ /* * Copyright (c) 2012-2013 Patrick Wildt * * 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 #include #include #include #include #include #include #include #include #include #include #include /* registers */ #define OCOTP_MAC0 0x620 #define OCOTP_MAC1 0x630 struct imxocotp_softc { struct device sc_dev; bus_space_tag_t sc_iot; bus_space_handle_t sc_ioh; }; struct imxocotp_softc *imxocotp_sc; void imxocotp_attach(struct device *parent, struct device *self, void *args); struct cfattach imxocotp_ca = { sizeof (struct imxocotp_softc), NULL, imxocotp_attach }; struct cfdriver imxocotp_cd = { NULL, "imxocotp", DV_DULL }; void imxocotp_attach(struct device *parent, struct device *self, void *args) { struct imx_attach_args *ia = args; struct imxocotp_softc *sc = (struct imxocotp_softc *) self; sc->sc_iot = ia->ia_iot; if (bus_space_map(sc->sc_iot, ia->ia_dev->mem[0].addr, ia->ia_dev->mem[0].size, 0, &sc->sc_ioh)) panic("imxocotp_attach: bus_space_map failed!"); printf("\n"); imxocotp_sc = sc; } void imxocotp_get_ethernet_address(u_int8_t* mac) { uint32_t value; value = bus_space_read_4(imxocotp_sc->sc_iot, imxocotp_sc->sc_ioh, OCOTP_MAC0); mac[5] = value & 0xff; mac[4] = (value >> 8) & 0xff; mac[3] = (value >> 16) & 0xff; mac[2] = (value >> 24) & 0xff; value = bus_space_read_4(imxocotp_sc->sc_iot, imxocotp_sc->sc_ioh, OCOTP_MAC1); mac[1] = value & 0xff; mac[0] = (value >> 8) & 0xff; }