blob: bcc8bcb053eeb05dc095780fcbc276fa2f311bd4
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 | #include <linux/kconfig.h> |
25 | #include <linux/initramfs.h> |
26 | |
27 | /* |
28 | * Create a simple rootfs that is similar to the default initramfs |
29 | */ |
30 | #if !IS_BUILTIN(CONFIG_BLK_DEV_INITRD) |
31 | static |
32 | #endif |
33 | int __init default_rootfs(void) |
34 | { |
35 | int err; |
36 | |
37 | err = sys_mkdir((const char __user __force *) "/dev", 0755); |
38 | if (err < 0) |
39 | goto out; |
40 | |
41 | err = sys_mknod((const char __user __force *) "/dev/console", |
42 | S_IFCHR | S_IRUSR | S_IWUSR, |
43 | new_encode_dev(MKDEV(5, 1))); |
44 | if (err < 0) |
45 | goto out; |
46 | |
47 | err = sys_mkdir((const char __user __force *) "/root", 0700); |
48 | if (err < 0) |
49 | goto out; |
50 | |
51 | return 0; |
52 | |
53 | out: |
54 | printk(KERN_WARNING "Failed to create a rootfs\n"); |
55 | return err; |
56 | } |
57 | #if !IS_BUILTIN(CONFIG_BLK_DEV_INITRD) |
58 | rootfs_initcall(default_rootfs); |
59 | #endif |
60 |