[src/trunk]: src/sys/arch/evbarm/devkit8000 dme ethernet driver for devkit800...

[ahoka <ahoka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/95361347418f
branches:  trunk
changeset: 757633:95361347418f
user:      ahoka <ahoka%NetBSD.org@localhost>
date:      Wed Sep 08 22:49:49 2010 +0000

description:
dme ethernet driver for devkit8000 gpmc

diffstat:

 sys/arch/evbarm/devkit8000/if_dme_gpmc.c |  161 +++++++++++++++++++++++++++++++
 1 files changed, 161 insertions(+), 0 deletions(-)

diffs (165 lines):

diff -r 1388307d3784 -r 95361347418f sys/arch/evbarm/devkit8000/if_dme_gpmc.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/evbarm/devkit8000/if_dme_gpmc.c  Wed Sep 08 22:49:49 2010 +0000
@@ -0,0 +1,161 @@
+/*     $NetBSD: if_dme_gpmc.c,v 1.1 2010/09/08 22:49:49 ahoka Exp $    */
+
+/*
+ * Copyright (c) 2010 Adam Hoka
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 2009 Paul Fleischer
+ * All rights reserved.
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the company nor the name of the author may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+
+#include "opt_omap.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/socket.h>
+#include <sys/device.h>
+
+#include <net/if.h>
+#include <net/if_ether.h>
+#include <net/if_media.h>
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <arch/arm/omap/omap2_gpmcvar.h>
+#include <arch/arm/omap/omap2_gpmcreg.h>
+
+#include <dev/ic/dm9000var.h>
+#include <dev/ic/dm9000reg.h>
+
+int    dme_gpmc_match(device_t, struct cfdata *, void *);
+void   dme_gpmc_attach(device_t, device_t, void *);
+
+CFATTACH_DECL_NEW(dme_gpmc, sizeof(struct dme_softc),
+    dme_gpmc_match, dme_gpmc_attach, NULL, NULL);
+
+int
+dme_gpmc_match(device_t parent, struct cfdata *cf, void *aux)
+{
+       struct gpmc_attach_args *gpmc = aux;
+       bus_space_tag_t iot = gpmc->gpmc_iot;
+       bus_space_handle_t ioh;
+
+       uint8_t vendor_id[2];
+       uint8_t product_id[2];
+       int result = 0;
+
+       /* Map memory to access the device during probing */
+       /* XXX should be done with two mappings */
+       if (bus_space_map(iot, gpmc->gpmc_addr, 0x404, 0, &ioh))
+               goto out;
+
+       /* Used to temporarily access the device for probing */
+       struct dme_softc sc = {
+               .sc_iot = iot,
+               .sc_ioh = ioh,
+               .dme_io = 0x0,
+               .dme_data = 0x400
+       };
+
+       vendor_id[0] = dme_read(&sc, DM9000_VID0);
+       vendor_id[1] = dme_read(&sc, DM9000_VID1);
+
+       product_id[0] = dme_read(&sc, DM9000_PID0);
+       product_id[1] = dme_read(&sc, DM9000_PID1);
+
+       if (vendor_id[0] == 0x46 && vendor_id[1] == 0x0a &&
+           product_id[0] == 0x00 && product_id[1] == 0x90 ) {
+               result = 1;
+       }
+
+out:
+       bus_space_unmap(iot, ioh, 0x404);
+
+       return result;
+}
+
+
+void
+dme_gpmc_attach(device_t parent, device_t self, void *aux)
+{
+       struct dme_softc *sc = device_private(self);
+       struct gpmc_attach_args *gpmc = aux;
+       /* XXX read eeprom or derive from die id */
+#define DME_ETHER_ADDR_FIXED 0,0x0a,0xb1,0,1,0xff
+#ifdef DME_ETHER_ADDR_FIXED
+       static u_int8_t enaddr[ETHER_ADDR_LEN] = {DME_ETHER_ADDR_FIXED};
+#else
+#define enaddr NULL
+#endif
+       sc->sc_iot = gpmc->gpmc_iot;
+       sc->sc_dev = self;
+       
+       /* XXX should be done with two mappings */
+       if (bus_space_map(sc->sc_iot,
+               gpmc->gpmc_addr, 0x404, 0, &sc->sc_ioh)) {
+               aprint_error(": unable to map i/o space\n");
+               return;
+       }
+
+       sc->sc_ih = intr_establish(gpmc->gpmc_intr, IPL_NET, IST_LEVEL_LOW,
+           dme_intr, sc);
+
+       if (sc->sc_ih == NULL) {
+               aprint_error(": unable to establish interrupt\n");
+               bus_space_unmap(sc->sc_iot, sc->sc_ioh, 0x404);
+       }
+
+       sc->dme_io = 0x0;
+       sc->dme_data = 0x400;
+
+       aprint_normal("\n");
+
+       dme_attach(sc, enaddr);
+}