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boot_device.c revision 1.1 
      1 /*	$NetBSD: boot_device.c,v 1.1 2005/12/29 15:20:09 tsutsui Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2004 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      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/types.h>
     40 #include <machine/sbd.h>
     41 #include "common.h"
     42 
     43 /*
     44  * Get boot device and unit number. IPL sets it.
     45  */
     46 void __nvsram_type_a(int *, int *);
     47 void __nvsram_type_b(int *, int *);
     48 void __nvsram_type_c(int *, int *);
     49 void __nvsram_type_d(int *, int *);
     50 void __nvsram_type_e(int *, int *);
     51 
     52 void (*tab[])(int *, int *) = {
     53 	__nvsram_type_c, /* ER */
     54 	__nvsram_type_a, /* TR */
     55 	__nvsram_type_a, /* SR */
     56 	__nvsram_type_b, /* TR+2D */
     57 	__nvsram_type_b, /* TR+3D */
     58 	__nvsram_type_c, /* LR */
     59 	__nvsram_type_c, /* ER2 */
     60 	__nvsram_type_d, /* TR2 */
     61 	__nvsram_type_c, /* ER1V */
     62 	__nvsram_type_e, /* LRC */
     63 	__nvsram_type_c, /* SR2 */
     64 	__nvsram_type_d, /* ER+ */
     65 	__nvsram_type_c, /* TR2+ */
     66 	__nvsram_type_d, /* ER2A */
     67 };
     68 
     69 void
     70 boot_device(int *type, int *unit, int *fd_format)
     71 {
     72 	int i;
     73 
     74 	*fd_format = SBD_INFO->fdd == 1 ? FD_FORMAT_2HD : FD_FORMAT_2D;
     75 	i  = SBD_INFO->machine - 0x1010;
     76 	if (i < sizeof tab / sizeof tab[0])
     77 		return tab[i](type, unit);
     78 
     79 	return __nvsram_type_e(type, unit);
     80 }
     81 
     82 void
     83 __nvsram_type_a(int *type, int *unit)
     84 {
     85 	/* TR, SR */
     86 	*type = NVSRAM_BOOTDEV_HARDDISK;
     87 	*unit = 0;
     88 }
     89 
     90 void
     91 __nvsram_type_b(int *type, int *unit)
     92 {
     93 	/* TR+2D, TR+3D */
     94 	*type = NVSRAM_BOOTDEV_HARDDISK;
     95 	*unit = *(uint8_t *)0xba021808;
     96 }
     97 
     98 void
     99 __nvsram_type_c(int *type, int *unit)
    100 {
    101 	/* ER, LR, ER2, ER1V, SR2, TR2+ */
    102 	*type = NVSRAM_BOOTDEV_HARDDISK;
    103 	*unit = *(uint8_t *)0xbb012088;
    104 }
    105 
    106 void
    107 __nvsram_type_d(int *type, int *unit)
    108 {
    109 	/* TR2, ER+, ER2A */
    110 	*type = *(uint8_t *)0xbb023030;
    111 	*unit = *(uint8_t *)0xbb023034;
    112 }
    113 
    114 void
    115 __nvsram_type_e(int *type, int *unit)
    116 {
    117 	/* LRC, TR2A, LER, LER_L, LER_H, MUS, LT, LT_L ... */
    118 	*type = *(uint8_t *)0xbe493030;
    119 	*unit = *(uint8_t *)0xbe493034;
    120 }
    121