sys/arch/evbarm/tsarm/wdc_ts.c

   1 /*      $NetBSD: wdc_ts.c,v 1.4 2008/03/18 20:46:35 cube Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1998, 2003 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Charles M. Hannum and by Onno van der Linden.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: wdc_ts.c,v 1.4 2008/03/18 20:46:35 cube Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/device.h>
  38 #include <sys/malloc.h>
  39
  40 #include <machine/bus.h>
  41 #include <machine/intr.h>
  42
  43 #include <arm/ep93xx/ep93xxvar.h>
  44
  45 #include <dev/ic/wdcreg.h>
  46 #include <dev/ata/atavar.h>
  47 #include <dev/ic/wdcvar.h>
  48 #include <evbarm/tsarm/tspldvar.h>
  49
  50 struct wdc_ts_softc {
  51         struct  wdc_softc sc_wdcdev;
  52         struct  ata_channel *wdc_chanlist[1];
  53         struct  ata_channel ata_channel;
  54         struct  ata_queue wdc_chqueue;
  55         struct  wdc_regs wdc_regs;
  56         void    *sc_ih;
  57 };
  58
  59 static int      wdc_ts_probe(device_t, cfdata_t, void *);
  60 static void     wdc_ts_attach(device_t, device_t, void *);
  61
  62 CFATTACH_DECL_NEW(wdc_ts, sizeof(struct wdc_ts_softc),
  63     wdc_ts_probe, wdc_ts_attach, NULL, NULL);
  64
  65 static int
  66 wdc_ts_probe(device_t parent, cfdata_t match, void *aux)
  67 {
  68         return 1;
  69 }
  70
  71 static void
  72 wdc_ts_attach(device_t parent, device_t self, void *aux)
  73 {
  74         struct wdc_ts_softc *sc = device_private(self);
  75         struct wdc_regs *wdr;
  76         struct tspld_attach_args *ta = aux;
  77         int i;
  78
  79         sc->sc_wdcdev.sc_atac.atac_dev = self;
  80         sc->sc_wdcdev.regs = wdr = &sc->wdc_regs;
  81         wdr->cmd_iot = ta->ta_iot;
  82         wdr->ctl_iot = ta->ta_iot;
  83         if (bus_space_map(wdr->cmd_iot, 0x11000000, 8, 0, &wdr->cmd_baseioh) ||
  84             bus_space_map(wdr->ctl_iot, 0x10400006, 1, 0, &wdr->ctl_ioh)) {
  85                 aprint_error(": couldn't map registers\n");
  86                 return;
  87         }
  88
  89         for (i = 0; i < 8; i++) {
  90                 if (bus_space_subregion(wdr->cmd_iot,
  91                       wdr->cmd_baseioh, i, 1, &wdr->cmd_iohs[i]) != 0) {
  92                         aprint_error(": couldn't subregion registers\n");
  93                         return;
  94                 }
  95         }
  96
  97
  98         if (bus_space_map(wdr->cmd_iot, 0x21000000, 2, 0, &wdr->cmd_iohs[0])) {
  99                 aprint_error(": couldn't map registers\n");
 100                 return;
 101         }
 102
 103         sc->sc_wdcdev.cap |= WDC_CAPABILITY_PREATA;
 104         sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16;
 105
 106         sc->sc_wdcdev.sc_atac.atac_pio_cap = 0;
 107         sc->wdc_chanlist[0] = &sc->ata_channel;
 108         sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanlist;
 109         sc->sc_wdcdev.sc_atac.atac_nchannels = 1;
 110         sc->ata_channel.ch_channel = 0;
 111         sc->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac;
 112         sc->ata_channel.ch_queue = &sc->wdc_chqueue;
 113         sc->ata_channel.ch_ndrive = 2;
 114         wdc_init_shadow_regs(&sc->ata_channel);
 115
 116         aprint_normal("\n");
 117
 118         sc->sc_ih = ep93xx_intr_establish(32, IPL_BIO, wdcintr, &sc->ata_channel);
 119
 120         wdcattach(&sc->ata_channel);
 121 }