]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - arch/mips/sgi-ip27/ip27-console.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
[mirror_ubuntu-artful-kernel.git] / arch / mips / sgi-ip27 / ip27-console.c
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1/*
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
4 * for more details.
5 *
6 * Copyright (C) 2001, 2002 Ralf Baechle
7 */
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8
9#include <asm/page.h>
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10#include <asm/sn/addrs.h>
11#include <asm/sn/sn0/hub.h>
12#include <asm/sn/klconfig.h>
13#include <asm/sn/ioc3.h>
14#include <asm/sn/sn_private.h>
15
16#include <linux/serial.h>
17#include <linux/serial_core.h>
18
19#define IOC3_CLK (22000000 / 3)
20#define IOC3_FLAGS (0)
21
22static inline struct ioc3_uartregs *console_uart(void)
23{
24 struct ioc3 *ioc3;
01d42abd 25 nasid_t nasid;
1da177e4 26
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27 nasid = (master_nasid == INVALID_NASID) ? get_nasid() : master_nasid;
28 ioc3 = (struct ioc3 *)KL_CONFIG_CH_CONS_INFO(nasid)->memory_base;
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29
30 return &ioc3->sregs.uarta;
31}
32
f7be4e75 33void prom_putchar(char c)
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34{
35 struct ioc3_uartregs *uart = console_uart();
36
37 while ((uart->iu_lsr & 0x20) == 0);
38 uart->iu_thr = c;
39}