diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/sparc/conf/GENERIC | 2 | ||||
| -rw-r--r-- | sys/arch/sparc/conf/GENERIC_SCSI3 | 2 | ||||
| -rw-r--r-- | sys/arch/sparc/conf/files.sparc | 6 | ||||
| -rw-r--r-- | sys/arch/sparc/sparc/conf.c | 7 | ||||
| -rw-r--r-- | sys/arch/sparc/sparc/rd_root.c | 80 |
5 files changed, 92 insertions, 5 deletions
diff --git a/sys/arch/sparc/conf/GENERIC b/sys/arch/sparc/conf/GENERIC index f6c817b0c4c..6f50edb994b 100644 --- a/sys/arch/sparc/conf/GENERIC +++ b/sys/arch/sparc/conf/GENERIC @@ -229,6 +229,6 @@ fd* at fdc0 # the drive itself pseudo-device kbd # Sun keyboard #pseudo-device strip 1 # radio clock - +pseudo-device rd 2 options OLD_PIPE # XXX nbpg botch diff --git a/sys/arch/sparc/conf/GENERIC_SCSI3 b/sys/arch/sparc/conf/GENERIC_SCSI3 index 33ce1b932b4..7804f1aa55f 100644 --- a/sys/arch/sparc/conf/GENERIC_SCSI3 +++ b/sys/arch/sparc/conf/GENERIC_SCSI3 @@ -229,6 +229,6 @@ fd* at fdc0 # the drive itself pseudo-device kbd # Sun keyboard #pseudo-device strip 1 # radio clock - +pseudo-device rd 2 options OLD_PIPE # XXX nbpg botch diff --git a/sys/arch/sparc/conf/files.sparc b/sys/arch/sparc/conf/files.sparc index 7b51eccdffd..2342e88f309 100644 --- a/sys/arch/sparc/conf/files.sparc +++ b/sys/arch/sparc/conf/files.sparc @@ -81,6 +81,12 @@ major { sd = 7 } major { vnd = 8 } major { cd = 18 } +# RAM Disk for install floppy +pseudo-device rd +file dev/ramdisk.c rd needs-flag +file arch/sparc/sparc/rd_root.c ramdisk_hooks +major {rd = 17} + device dma {} attach dma at sbus, obio device ledma {} diff --git a/sys/arch/sparc/sparc/conf.c b/sys/arch/sparc/sparc/conf.c index 94a4662ab43..9147630566e 100644 --- a/sys/arch/sparc/sparc/conf.c +++ b/sys/arch/sparc/sparc/conf.c @@ -66,6 +66,7 @@ #include "sd.h" #include "st.h" #include "cd.h" +#include "rd.h" #include "zs.h" #include "fdc.h" /* has NFDC and NFD; see files.sparc */ @@ -96,7 +97,7 @@ struct bdevsw bdevsw[] = bdev_notdef(), /* 14 */ bdev_notdef(), /* 15 */ bdev_disk_init(NFD,fd), /* 16: floppy disk */ - bdev_notdef(), /* 17 */ + bdev_disk_init(NRD,rd), /* 17: ram disk driver */ bdev_disk_init(NCD,cd), /* 18: SCSI CD-ROM */ bdev_lkm_dummy(), /* 19 */ bdev_lkm_dummy(), /* 20 */ @@ -215,7 +216,7 @@ struct cdevsw cdevsw[] = cdev_notdef(), /* 103 */ cdev_notdef(), /* 104 */ cdev_bpftun_init(NBPFILTER,bpf),/* 105: packet filter */ - cdev_notdef(), /* 106 */ + cdev_disk_init(NRD,rd), /* 106: ram disk driver */ cdev_notdef(), /* 107 */ cdev_notdef(), /* 108 */ cdev_notdef(), /* 109 */ @@ -376,7 +377,7 @@ static int chrtoblktbl[] = { /*103 */ NODEV, /*104 */ NODEV, /*105 */ NODEV, - /*106 */ NODEV, + /*106 */ 17, /*107 */ NODEV, /*108 */ NODEV, /*109 */ NODEV, diff --git a/sys/arch/sparc/sparc/rd_root.c b/sys/arch/sparc/sparc/rd_root.c new file mode 100644 index 00000000000..6474f0d2188 --- /dev/null +++ b/sys/arch/sparc/sparc/rd_root.c @@ -0,0 +1,80 @@ +/* $NetBSD: rd_root.c,v 1.2 1996/03/27 16:38:33 perry Exp $ */ + +/* + * 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/ramdisk.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. + * See the program: src/distrib/sun3/common/rdsetroot.c + */ +int rd_root_size = ROOTBYTES; +char rd_root_image[ROOTBYTES] = "|This is the root ramdisk!\n"; + +/* + * This is called during autoconfig. + */ +void +rd_attach_hook(unit, rd) + int unit; + struct rd_conf *rd; +{ + if (unit == 0) { + /* Setup root ramdisk */ + rd->rd_addr = (caddr_t) rd_root_image; + rd->rd_size = (size_t) rd_root_size; + rd->rd_type = RD_KMEM_FIXED; + printf("rd%d: fixed, %d blocks\n", unit, MINIROOTSIZE); + } +} + +/* + * This is called during open (i.e. mountroot) + */ +void +rd_open_hook(unit, rd) + int unit; + struct rd_conf *rd; +{ + if (unit == 0) { + /* The root ramdisk only works single-user. */ + boothowto |= RB_SINGLE; + } +} |