| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 2001, 2002 Ralf Baechle |
| */ |
| |
| #include <asm/page.h> |
| #include <asm/setup.h> |
| #include <asm/sn/addrs.h> |
| #include <asm/sn/sn0/hub.h> |
| #include <asm/sn/klconfig.h> |
| #include <asm/sn/ioc3.h> |
| #include <asm/sn/sn_private.h> |
| |
| #include <linux/serial.h> |
| #include <linux/serial_core.h> |
| |
| #define IOC3_CLK (22000000 / 3) |
| #define IOC3_FLAGS (0) |
| |
| static inline struct ioc3_uartregs *console_uart(void) |
| { |
| struct ioc3 *ioc3; |
| nasid_t nasid; |
| |
| nasid = (master_nasid == INVALID_NASID) ? get_nasid() : master_nasid; |
| ioc3 = (struct ioc3 *)KL_CONFIG_CH_CONS_INFO(nasid)->memory_base; |
| |
| return &ioc3->sregs.uarta; |
| } |
| |
| void prom_putchar(char c) |
| { |
| struct ioc3_uartregs *uart = console_uart(); |
| |
| while ((readb(&uart->iu_lsr) & 0x20) == 0) |
| ; |
| writeb(c, &uart->iu_thr); |
| } |
