1/* 2 * sercons.c 3 * choose the right serial device at boot time 4 * 5 * triemer 6-SEP-1998 6 * sercons.c is designed to allow the three different kinds 7 * of serial devices under the decstation world to co-exist 8 * in the same kernel. The idea here is to abstract 9 * the pieces of the drivers that are common to this file 10 * so that they do not clash at compile time and runtime. 11 * 12 * HK 16-SEP-1998 v0.002 13 * removed the PROM console as this is not a real serial 14 * device. Added support for PROM console in drivers/char/tty_io.c 15 * instead. Although it may work to enable more than one 16 * console device I strongly recommend to use only one. 17 */ 18 19#include <linux/init.h> 20#include <asm/dec/machtype.h> 21 22#ifdef CONFIG_ZS 23extern int zs_init(void); 24#endif 25 26#ifdef CONFIG_SERIAL_CONSOLE 27 28#ifdef CONFIG_ZS 29extern void zs_serial_console_init(void); 30#endif 31 32#endif 33 34/* rs_init - starts up the serial interface - 35 handle normal case of starting up the serial interface */ 36 37#ifdef CONFIG_SERIAL 38 39int __init rs_init(void) 40{ 41#ifdef CONFIG_ZS 42 if (IOASIC) 43 return zs_init(); 44#endif 45 return -ENXIO; 46} 47 48__initcall(rs_init); 49 50#endif 51 52#ifdef CONFIG_SERIAL_CONSOLE 53 54/* serial_console_init handles the special case of starting 55 * up the console on the serial port 56 */ 57static int __init decserial_console_init(void) 58{ 59#ifdef CONFIG_ZS 60 if (IOASIC) 61 zs_serial_console_init(); 62#endif 63 return 0; 64} 65console_initcall(decserial_console_init); 66 67#endif 68