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wdc_ts.c revision 1.1 
      1 /*	$NetBSD: wdc_ts.c,v 1.1 2004/12/23 04:30:50 joff 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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: wdc_ts.c,v 1.1 2004/12/23 04:30:50 joff Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/device.h>
     45 #include <sys/malloc.h>
     46 
     47 #include <machine/bus.h>
     48 #include <machine/intr.h>
     49 
     50 #include <arm/ep93xx/ep93xxvar.h>
     51 
     52 #include <dev/ic/wdcreg.h>
     53 #include <dev/ata/atavar.h>
     54 #include <dev/ic/wdcvar.h>
     55 #include <evbarm/tsarm/tspldvar.h>
     56 
     57 struct wdc_ts_softc {
     58 	struct	wdc_softc sc_wdcdev;
     59 	struct	ata_channel *wdc_chanlist[1];
     60 	struct	ata_channel ata_channel;
     61 	struct	ata_queue wdc_chqueue;
     62 	struct	wdc_regs wdc_regs;
     63 	void	*sc_ih;
     64 };
     65 
     66 static int	wdc_ts_probe(struct device *, struct cfdata *, void *);
     67 static void	wdc_ts_attach(struct device *, struct device *, void *);
     68 
     69 CFATTACH_DECL(wdc_ts, sizeof(struct wdc_ts_softc),
     70     wdc_ts_probe, wdc_ts_attach, NULL, NULL);
     71 
     72 static int
     73 wdc_ts_probe(struct device *parent, struct cfdata *match, void *aux)
     74 {
     75 	return 1;
     76 }
     77 
     78 static void
     79 wdc_ts_attach(struct device *parent, struct device *self, void *aux)
     80 {
     81 	struct wdc_ts_softc *sc = (void *)self;
     82 	struct wdc_regs *wdr;
     83 	struct tspld_attach_args *ta = aux;
     84 	int i;
     85 
     86 	sc->sc_wdcdev.regs = wdr = &sc->wdc_regs;
     87 	wdr->cmd_iot = ta->ta_iot;
     88 	wdr->ctl_iot = ta->ta_iot;
     89 	if (bus_space_map(wdr->cmd_iot, 0x11000000, 8, 0, &wdr->cmd_baseioh) ||
     90 	    bus_space_map(wdr->ctl_iot, 0x10400006, 1, 0, &wdr->ctl_ioh)) {
     91 		printf(": couldn't map registers\n");
     92 		return;
     93 	}
     94 
     95 	for (i = 0; i < 8; i++) {
     96 		if (bus_space_subregion(wdr->cmd_iot,
     97 		      wdr->cmd_baseioh, i, 1, &wdr->cmd_iohs[i]) != 0) {
     98 			printf(": couldn't subregion registers\n");
     99 			return;
    100 		}
    101 	}
    102 
    103 
    104 	if (bus_space_map(wdr->cmd_iot, 0x21000000, 2, 0, &wdr->cmd_iohs[0])) {
    105 		printf(": couldn't map registers\n");
    106 		return;
    107 	}
    108 
    109 	sc->sc_wdcdev.cap |= WDC_CAPABILITY_PREATA;
    110 	sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16;
    111 
    112 	sc->sc_wdcdev.sc_atac.atac_pio_cap = 0;
    113 	sc->wdc_chanlist[0] = &sc->ata_channel;
    114 	sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanlist;
    115 	sc->sc_wdcdev.sc_atac.atac_nchannels = 1;
    116 	sc->ata_channel.ch_channel = 0;
    117 	sc->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac;
    118 	sc->ata_channel.ch_queue = &sc->wdc_chqueue;
    119 	wdc_init_shadow_regs(&sc->ata_channel);
    120 
    121 	printf("\n");
    122 
    123 	sc->sc_ih = ep93xx_intr_establish(32, IPL_BIO, wdcintr, &sc->ata_channel);
    124 
    125 	wdcattach(&sc->ata_channel);
    126 }
    127