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-rw-r--r--arch/mips/txx9/jmr3927/prom.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/arch/mips/txx9/jmr3927/prom.c b/arch/mips/txx9/jmr3927/prom.c
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1/*
2 * BRIEF MODULE DESCRIPTION
3 * PROM library initialisation code, assuming a version of
4 * pmon is the boot code.
5 *
6 * Copyright 2001 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 * ahennessy@mvista.com
9 *
10 * Based on arch/mips/au1000/common/prom.c
11 *
12 * This file was derived from Carsten Langgaard's
13 * arch/mips/mips-boards/xx files.
14 *
15 * Carsten Langgaard, carstenl@mips.com
16 * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
17 *
18 * This program is free software; you can redistribute it and/or modify it
19 * under the terms of the GNU General Public License as published by the
20 * Free Software Foundation; either version 2 of the License, or (at your
21 * option) any later version.
22 *
23 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
26 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
29 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
30 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * You should have received a copy of the GNU General Public License along
35 * with this program; if not, write to the Free Software Foundation, Inc.,
36 * 675 Mass Ave, Cambridge, MA 02139, USA.
37 */
38#include <linux/kernel.h>
39#include <linux/init.h>
40#include <linux/string.h>
41
42#include <asm/bootinfo.h>
43#include <asm/txx9/tx3927.h>
44
45char * __init prom_getcmdline(void)
46{
47 return &(arcs_cmdline[0]);
48}
49
50void __init prom_init_cmdline(void)
51{
52 char *cp;
53 int actr;
54 int prom_argc = fw_arg0;
55 char **prom_argv = (char **) fw_arg1;
56
57 actr = 1; /* Always ignore argv[0] */
58
59 cp = &(arcs_cmdline[0]);
60 while(actr < prom_argc) {
61 strcpy(cp, prom_argv[actr]);
62 cp += strlen(prom_argv[actr]);
63 *cp++ = ' ';
64 actr++;
65 }
66 if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
67 --cp;
68 *cp = '\0';
69}
70
71void __init prom_free_prom_memory(void)
72{
73}
74
75#define TIMEOUT 0xffffff
76
77void
78prom_putchar(char c)
79{
80 int i = 0;
81
82 do {
83 i++;
84 if (i>TIMEOUT)
85 break;
86 } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
87 tx3927_sioptr(1)->tfifo = c;
88 return;
89}
90
91void
92puts(const char *cp)
93{
94 while (*cp)
95 prom_putchar(*cp++);
96 prom_putchar('\r');
97 prom_putchar('\n');
98}