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Support md root for INSTALL.

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This commit is contained in:
tsubai 1999-11-10 13:33:09 +00:00
parent 8276207b08
commit 90a8355d04
2 changed files with 96 additions and 6 deletions
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17
sys/arch/newsmips/conf/files.newsmips
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@ -1,4 +1,4 @@
# $NetBSD: files.newsmips,v 1.4 1999/06/07 20:31:32 thorpej Exp $
# $NetBSD: files.newsmips,v 1.5 1999/11/10 13:33:10 tsubai Exp $
# NEWS-specific configuration info
# maxpartitions must be first item in files.${ARCH}.
@ -83,18 +83,23 @@ file arch/newsmips/newsmips/mainbus.c
file arch/newsmips/newsmips/cpu_cons.c
file dev/cons.c
major {md = 2}
#
# Machine-independent SCSI driver.
#
include "dev/scsipi/files.scsipi"
major { sd = 0 }
major { fd = 1 }
major { cd = 16 }
device sc: scsi
file arch/newsmips/dev/scsi_1185.c sc needs-count
file arch/newsmips/dev/sc_wrap.c sc
attach sc at hb
#
# Memory Disk for install floppy
#
file arch/newsmips/newsmips/md_root.c memory_disk_hooks
major { sd = 0 }
major { fd = 1 }
major { md = 2 }
major { cd = 16 }

85
sys/arch/newsmips/newsmips/md_root.c Normal file
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@ -0,0 +1,85 @@
/* $NetBSD: md_root.c,v 1.1 1999/11/10 13:33:09 tsubai Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
* Copyright (c) 1995 Gordon W. Ross
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/reboot.h>
#include <dev/md.h>
#include "opt_mdsize.h"
extern int boothowto;
#ifndef MINIROOTSIZE
#define MINIROOTSIZE 512
#endif
#define ROOTBYTES (MINIROOTSIZE << DEV_BSHIFT)
/*
* This array will be patched to contain a file-system image.
*/
u_int32_t md_root_size = ROOTBYTES;
char md_root_image[ROOTBYTES] = "|This is the root ramdisk!\n";
/*
* This is called during autoconfig.
*/
void
md_attach_hook(unit, md)
int unit;
struct md_conf *md;
{
if (unit == 0) {
/* Setup root ramdisk */
md->md_addr = (caddr_t)md_root_image;
md->md_size = (size_t)md_root_size;
md->md_type = MD_KMEM_FIXED;
printf("md%d: internal %dK image area\n", unit,
ROOTBYTES / 1024);
}
}
/*
* This is called during open (i.e. mountroot)
*/
void
md_open_hook(unit, md)
int unit;
struct md_conf *md;
{
if (unit == 0) {
/* The root ramdisk only works single-user. */
boothowto |= RB_SINGLE;
}
}