diff options
Diffstat (limited to 'arch/mips/txx9/jmr3927/prom.c')
-rw-r--r-- | arch/mips/txx9/jmr3927/prom.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/arch/mips/txx9/jmr3927/prom.c b/arch/mips/txx9/jmr3927/prom.c new file mode 100644 index 000000000000..8bc1049b622e --- /dev/null +++ b/arch/mips/txx9/jmr3927/prom.c | |||
@@ -0,0 +1,98 @@ | |||
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 | |||
45 | char * __init prom_getcmdline(void) | ||
46 | { | ||
47 | return &(arcs_cmdline[0]); | ||
48 | } | ||
49 | |||
50 | void __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 | |||
71 | void __init prom_free_prom_memory(void) | ||
72 | { | ||
73 | } | ||
74 | |||
75 | #define TIMEOUT 0xffffff | ||
76 | |||
77 | void | ||
78 | prom_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 | |||
91 | void | ||
92 | puts(const char *cp) | ||
93 | { | ||
94 | while (*cp) | ||
95 | prom_putchar(*cp++); | ||
96 | prom_putchar('\r'); | ||
97 | prom_putchar('\n'); | ||
98 | } | ||