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Annotation of sys/arch/jornada/stand/boot/pciide.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: pciide.c,v 1.3 2006/07/30 20:46:30 drahn Exp $        */
                      2: /*     $NetBSD: pciide.c,v 1.5 2005/12/11 12:17:06 christos Exp $      */
                      3:
                      4: /*-
                      5:  * Copyright (c) 2003 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *        This product includes software developed by the NetBSD
                     19:  *        Foundation, Inc. and its contributors.
                     20:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     21:  *    contributors may be used to endorse or promote products derived
                     22:  *    from this software without specific prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     25:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     26:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     27:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     28:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     29:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     30:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     31:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     32:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     33:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     34:  * POSSIBILITY OF SUCH DAMAGE.
                     35:  */
                     36:
                     37: #include <sys/types.h>
                     38:
                     39: #include "libsa.h"
                     40: #include "wdvar.h"
                     41:
                     42: u_int32_t wdc_base_addr = 0;
                     43:
                     44: int
                     45: pciide_init(struct wdc_channel *chp, u_int chan)
                     46: {
                     47:        u_int32_t cmdreg, ctlreg;
                     48:        int i;
                     49:
                     50:        /*
                     51:         * two channels per chip, one drive per channel
                     52:         */
                     53:        if (chan >= PCIIDE_NUM_CHANNELS || wdc_base_addr == 0)
                     54:                return (ENXIO);
                     55:        chp->ndrives = 1;
                     56:
                     57:        DPRINTF(("[pciide] channel: %d\n", chan));
                     58:
                     59:        /*
                     60:         * XXX map?
                     61:         */
                     62:        cmdreg = wdc_base_addr + chan * 0x10;
                     63:        ctlreg = wdc_base_addr+0x8 + chan * 0x10;
                     64:
                     65:        /* set up cmd regsiters */
                     66:        chp->c_cmdbase = (u_int8_t *)cmdreg;
                     67:        chp->c_data = (u_int16_t *)(cmdreg + wd_data);
                     68:        for (i = 0; i < WDC_NPORTS; i++)
                     69:                chp->c_cmdreg[i] = chp->c_cmdbase + i;
                     70:        /* set up shadow registers */
                     71:        chp->c_cmdreg[wd_status]   = chp->c_cmdreg[wd_command];
                     72:        chp->c_cmdreg[wd_features] = chp->c_cmdreg[wd_precomp];
                     73:        /* set up ctl registers */
                     74:        chp->c_ctlbase = (u_int8_t *)ctlreg;
                     75:
                     76:        return (0);
                     77: }