11e95c7ccSAndrew Jones /* 21e95c7ccSAndrew Jones * Each architecture must implement puts() and exit(). 31e95c7ccSAndrew Jones * 41e95c7ccSAndrew Jones * Copyright (C) 2016, Red Hat Inc, Andrew Jones <drjones@redhat.com> 51e95c7ccSAndrew Jones * 61e95c7ccSAndrew Jones * This work is licensed under the terms of the GNU LGPL, version 2. 71e95c7ccSAndrew Jones */ 81e95c7ccSAndrew Jones #include <libcflat.h> 9e65bcc62SAndrew Jones #include <asm/spinlock.h> 10*2f9ce69eSAndrew Jones #include <asm/rtas.h> 11e65bcc62SAndrew Jones 12e65bcc62SAndrew Jones extern void halt(int code); 13e65bcc62SAndrew Jones extern void putchar(int c); 14e65bcc62SAndrew Jones 15e65bcc62SAndrew Jones static struct spinlock print_lock; 161e95c7ccSAndrew Jones 171e95c7ccSAndrew Jones void io_init(void) 181e95c7ccSAndrew Jones { 19*2f9ce69eSAndrew Jones rtas_init(); 201e95c7ccSAndrew Jones } 211e95c7ccSAndrew Jones 22e65bcc62SAndrew Jones void puts(const char *s) 231e95c7ccSAndrew Jones { 24e65bcc62SAndrew Jones spin_lock(&print_lock); 25e65bcc62SAndrew Jones while (*s) 26e65bcc62SAndrew Jones putchar(*s++); 27e65bcc62SAndrew Jones spin_unlock(&print_lock); 281e95c7ccSAndrew Jones } 291e95c7ccSAndrew Jones 30e65bcc62SAndrew Jones void exit(int code) 311e95c7ccSAndrew Jones { 32e65bcc62SAndrew Jones halt(code); 331e95c7ccSAndrew Jones } 34