2 * rbtx4927 specific prom routines
4 * Author: MontaVista Software, Inc.
7 * Copyright 2001-2002 MontaVista Software Inc.
9 * Copyright (C) 2004 MontaVista Software Inc.
10 * Author: Manish Lachwani, mlachwani@mvista.com
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by the
14 * Free Software Foundation; either version 2 of the License, or (at your
15 * option) any later version.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
23 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
26 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * You should have received a copy of the GNU General Public License along
29 * with this program; if not, write to the Free Software Foundation, Inc.,
30 * 675 Mass Ave, Cambridge, MA 02139, USA.
32 #include <linux/init.h>
33 #include <linux/string.h>
34 #include <asm/bootinfo.h>
36 #include <asm/mipsregs.h>
37 #include <asm/txx9/tx4927.h>
39 void __init prom_init_cmdline(void)
41 int argc = (int) fw_arg0;
42 char **argv = (char **) fw_arg1;
43 int i; /* Always ignore the "-c" at argv[0] */
45 /* ignore all built-in args if any f/w args given */
50 for (i = 1; i < argc; i++) {
52 strcat(arcs_cmdline, " ");
54 strcat(arcs_cmdline, argv[i]);
58 void __init prom_init(void)
60 extern int tx4927_get_mem_size(void);
61 extern char* toshiba_name;
66 if ((read_c0_prid() & 0xff) == PRID_REV_TX4927) {
67 mips_machtype = MACH_TOSHIBA_RBTX4927;
68 toshiba_name = "TX4927";
70 mips_machtype = MACH_TOSHIBA_RBTX4937;
71 toshiba_name = "TX4937";
74 msize = tx4927_get_mem_size();
75 add_memory_region(0, msize << 20, BOOT_MEM_RAM);
78 void __init prom_free_prom_memory(void)
82 const char *get_system_type(void)
84 return "Toshiba RBTX4927/RBTX4937";
87 char * __init prom_getcmdline(void)
89 return &(arcs_cmdline[0]);