diff options
Diffstat (limited to 'sys/arch/arm32/dev/rd_hooks.c')
| -rw-r--r-- | sys/arch/arm32/dev/rd_hooks.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/sys/arch/arm32/dev/rd_hooks.c b/sys/arch/arm32/dev/rd_hooks.c new file mode 100644 index 00000000000..7aa97324645 --- /dev/null +++ b/sys/arch/arm32/dev/rd_hooks.c @@ -0,0 +1,98 @@ +/* $NetBSD: rd_hooks.c,v 1.5 1996/03/28 21:14:13 mark 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/reboot.h> +#include <sys/device.h> + +#include <vm/vm.h> +#include <vm/vm_map.h> +#include <vm/vm_kern.h> + +#include <dev/ramdisk.h> + +#ifndef RAMDISK_SIZE +#define RAMDISK_SIZE 0 +#endif + +/*extern int boothowto;*/ +extern u_int ramdisc_size; +struct rd_conf *bootrd = NULL; + +int load_ramdisc_from_floppy __P((struct rd_conf *rd, dev_t dev)); + +/* + * This is called during autoconfig. + */ +int +rd_match_hook(parent, self, aux) + struct device *parent; + void *self; + void *aux; +{ + return (1); +} + +void +rd_attach_hook(unit, rd) + int unit; + struct rd_conf *rd; +{ + if (unit == 0) { + if (ramdisc_size == 0 && RAMDISK_SIZE) + ramdisc_size = (RAMDISK_SIZE * 1024); + + if (ramdisc_size != 0) { + rd->rd_size = round_page(ramdisc_size); + rd->rd_addr = (caddr_t)kmem_alloc(kernel_map, ramdisc_size); + rd->rd_type = RD_KMEM_FIXED; + bootrd = rd; + } + } + printf("rd%d: allocated %dK (%d blocks)\n", unit, rd->rd_size / 1024, rd->rd_size / DEV_BSIZE); +} + + +/* + * This is called during open (i.e. mountroot) + */ + +void +rd_open_hook(unit, rd) + int unit; + struct rd_conf *rd; +{ +/* I use the ramdisc for other testing ... */ +#if 0 + if (unit == 0) { + /* The root ramdisk only works single-user. */ + boothowto |= RB_SINGLE; + } +#endif +} |