1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * init/noinitramfs.c 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 2006, NXP Semiconductors, All Rights Reserved 6*4882a593Smuzhiyun * Author: Jean-Paul Saman <jean-paul.saman@nxp.com> 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun #include <linux/init.h> 9*4882a593Smuzhiyun #include <linux/stat.h> 10*4882a593Smuzhiyun #include <linux/kdev_t.h> 11*4882a593Smuzhiyun #include <linux/syscalls.h> 12*4882a593Smuzhiyun #include <linux/init_syscalls.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* 15*4882a593Smuzhiyun * Create a simple rootfs that is similar to the default initramfs 16*4882a593Smuzhiyun */ default_rootfs(void)17*4882a593Smuzhiyunstatic int __init default_rootfs(void) 18*4882a593Smuzhiyun { 19*4882a593Smuzhiyun int err; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun err = init_mkdir("/dev", 0755); 22*4882a593Smuzhiyun if (err < 0) 23*4882a593Smuzhiyun goto out; 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun err = init_mknod("/dev/console", S_IFCHR | S_IRUSR | S_IWUSR, 26*4882a593Smuzhiyun new_encode_dev(MKDEV(5, 1))); 27*4882a593Smuzhiyun if (err < 0) 28*4882a593Smuzhiyun goto out; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun err = init_mkdir("/root", 0700); 31*4882a593Smuzhiyun if (err < 0) 32*4882a593Smuzhiyun goto out; 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun return 0; 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun out: 37*4882a593Smuzhiyun printk(KERN_WARNING "Failed to create a rootfs\n"); 38*4882a593Smuzhiyun return err; 39*4882a593Smuzhiyun } 40*4882a593Smuzhiyun rootfs_initcall(default_rootfs); 41