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      1 /*	$NetBSD: boot_device.c,v 1.2 2008/04/28 20:23:18 martin 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  *
     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/types.h>
     33 #include <machine/sbd.h>
     34 #include "common.h"
     35 
     36 /*
     37  * Get boot device and unit number. IPL sets it.
     38  */
     39 void __nvsram_type_a(int *, int *);
     40 void __nvsram_type_b(int *, int *);
     41 void __nvsram_type_c(int *, int *);
     42 void __nvsram_type_d(int *, int *);
     43 void __nvsram_type_e(int *, int *);
     44 
     45 void (*tab[])(int *, int *) = {
     46 	__nvsram_type_c, /* ER */
     47 	__nvsram_type_a, /* TR */
     48 	__nvsram_type_a, /* SR */
     49 	__nvsram_type_b, /* TR+2D */
     50 	__nvsram_type_b, /* TR+3D */
     51 	__nvsram_type_c, /* LR */
     52 	__nvsram_type_c, /* ER2 */
     53 	__nvsram_type_d, /* TR2 */
     54 	__nvsram_type_c, /* ER1V */
     55 	__nvsram_type_e, /* LRC */
     56 	__nvsram_type_c, /* SR2 */
     57 	__nvsram_type_d, /* ER+ */
     58 	__nvsram_type_c, /* TR2+ */
     59 	__nvsram_type_d, /* ER2A */
     60 };
     61 
     62 void
     63 boot_device(int *type, int *unit, int *fd_format)
     64 {
     65 	int i;
     66 
     67 	*fd_format = SBD_INFO->fdd == 1 ? FD_FORMAT_2HD : FD_FORMAT_2D;
     68 	i  = SBD_INFO->machine - 0x1010;
     69 	if (i < sizeof tab / sizeof tab[0])
     70 		return tab[i](type, unit);
     71 
     72 	return __nvsram_type_e(type, unit);
     73 }
     74 
     75 void
     76 __nvsram_type_a(int *type, int *unit)
     77 {
     78 	/* TR, SR */
     79 	*type = NVSRAM_BOOTDEV_HARDDISK;
     80 	*unit = 0;
     81 }
     82 
     83 void
     84 __nvsram_type_b(int *type, int *unit)
     85 {
     86 	/* TR+2D, TR+3D */
     87 	*type = NVSRAM_BOOTDEV_HARDDISK;
     88 	*unit = *(uint8_t *)0xba021808;
     89 }
     90 
     91 void
     92 __nvsram_type_c(int *type, int *unit)
     93 {
     94 	/* ER, LR, ER2, ER1V, SR2, TR2+ */
     95 	*type = NVSRAM_BOOTDEV_HARDDISK;
     96 	*unit = *(uint8_t *)0xbb012088;
     97 }
     98 
     99 void
    100 __nvsram_type_d(int *type, int *unit)
    101 {
    102 	/* TR2, ER+, ER2A */
    103 	*type = *(uint8_t *)0xbb023030;
    104 	*unit = *(uint8_t *)0xbb023034;
    105 }
    106 
    107 void
    108 __nvsram_type_e(int *type, int *unit)
    109 {
    110 	/* LRC, TR2A, LER, LER_L, LER_H, MUS, LT, LT_L ... */
    111 	*type = *(uint8_t *)0xbe493030;
    112 	*unit = *(uint8_t *)0xbe493034;
    113 }
    114