2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 2001, 2002 Ralf Baechle
8 #include <linux/init.h>
9 #include <linux/console.h>
10 #include <linux/kdev_t.h>
11 #include <linux/major.h>
12 #include <linux/termios.h>
13 #include <linux/sched.h>
14 #include <linux/tty.h>
17 #include <asm/semaphore.h>
18 #include <asm/sn/addrs.h>
19 #include <asm/sn/sn0/hub.h>
20 #include <asm/sn/klconfig.h>
21 #include <asm/sn/ioc3.h>
22 #include <asm/sn/sn_private.h>
24 #include <linux/serial.h>
25 #include <linux/serial_core.h>
27 #define IOC3_CLK (22000000 / 3)
28 #define IOC3_FLAGS (0)
30 static inline struct ioc3_uartregs *console_uart(void)
34 ioc3 = (struct ioc3 *)KL_CONFIG_CH_CONS_INFO(get_nasid())->memory_base;
36 return &ioc3->sregs.uarta;
39 void prom_putchar(char c)
41 struct ioc3_uartregs *uart = console_uart();
43 while ((uart->iu_lsr & 0x20) == 0);
47 char __init prom_getchar(void)
52 static void inline ioc3_console_probe(void)
57 * Register to interrupt zero because we share the interrupt with
58 * the serial driver which we don't properly support yet.
60 memset(&up, 0, sizeof(up));
61 up.membase = (unsigned char *) console_uart();
63 up.uartclk = IOC3_CLK;
66 up.flags = IOC3_FLAGS;
69 if (early_serial_setup(&up))
70 printk(KERN_ERR "Early serial init of port 0 failed\n");
73 __init void ip27_setup_console(void)