1 /* 2 * init/noinitramfs.c 3 * 4 * Copyright (C) 2006, NXP Semiconductors, All Rights Reserved 5 * Author: Jean-Paul Saman <jean-paul.saman@nxp.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; version 2 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 #include <linux/init.h> 21 #include <linux/stat.h> 22 #include <linux/kdev_t.h> 23 #include <linux/syscalls.h> 24 25 /* 26 * Create a simple rootfs that is similar to the default initramfs 27 */ 28 static int __init default_rootfs(void) 29 { 30 int err; 31 32 err = sys_mkdir((const char __user __force *) "/dev", 0755); 33 if (err < 0) 34 goto out; 35 36 err = sys_mknod((const char __user __force *) "/dev/console", 37 S_IFCHR | S_IRUSR | S_IWUSR, 38 new_encode_dev(MKDEV(5, 1))); 39 if (err < 0) 40 goto out; 41 42 err = sys_mkdir((const char __user __force *) "/root", 0700); 43 if (err < 0) 44 goto out; 45 46 return 0; 47 48 out: 49 printk(KERN_WARNING "Failed to create a rootfs\n"); 50 return err; 51 } 52 rootfs_initcall(default_rootfs); 53