1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * init/noinitramfs.c 4 * 5 * Copyright (C) 2006, NXP Semiconductors, All Rights Reserved 6 * Author: Jean-Paul Saman <jean-paul.saman@nxp.com> 7 */ 8 #include <linux/init.h> 9 #include <linux/stat.h> 10 #include <linux/kdev_t.h> 11 #include <linux/syscalls.h> 12 13 /* 14 * Create a simple rootfs that is similar to the default initramfs 15 */ 16 static int __init default_rootfs(void) 17 { 18 int err; 19 20 err = ksys_mkdir((const char __user __force *) "/dev", 0755); 21 if (err < 0) 22 goto out; 23 24 err = ksys_mknod((const char __user __force *) "/dev/console", 25 S_IFCHR | S_IRUSR | S_IWUSR, 26 new_encode_dev(MKDEV(5, 1))); 27 if (err < 0) 28 goto out; 29 30 err = ksys_mkdir((const char __user __force *) "/root", 0700); 31 if (err < 0) 32 goto out; 33 34 return 0; 35 36 out: 37 printk(KERN_WARNING "Failed to create a rootfs\n"); 38 return err; 39 } 40 rootfs_initcall(default_rootfs); 41