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/* $OpenBSD: imxocotp.c,v 1.1 2013/09/06 20:45:54 patrick 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/queue.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/evcount.h>
#include <sys/socket.h>
#include <sys/timeout.h>
#include <machine/intr.h>
#include <machine/bus.h>
#include <armv7/imx/imxvar.h>
#include <armv7/imx/imxocotpvar.h>
/* 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;
}
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