2 * rbtx4927 specific prom routines
4 * Author: MontaVista Software, Inc.
7 * Copyright 2001-2002 MontaVista Software Inc.
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
15 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
16 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
20 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
22 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
23 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 * You should have received a copy of the GNU General Public License along
26 * with this program; if not, write to the Free Software Foundation, Inc.,
27 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 #include <linux/init.h>
31 #include <linux/sched.h>
32 #include <linux/bootmem.h>
34 #include <asm/addrspace.h>
35 #include <asm/bootinfo.h>
37 #include <asm/tx4927/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 const char* toshiba_name_list[] = GROUP_TOSHIBA_NAMES;
61 extern int tx4927_get_mem_size(void);
62 extern char* toshiba_name;
67 mips_machgroup = MACH_GROUP_TOSHIBA;
69 if ((read_c0_prid() & 0xff) == PRID_REV_TX4927)
70 mips_machtype = MACH_TOSHIBA_RBTX4927;
72 mips_machtype = MACH_TOSHIBA_RBTX4937;
74 toshiba_name = toshiba_name_list[mips_machtype];
76 msize = tx4927_get_mem_size();
77 add_memory_region(0, msize << 20, BOOT_MEM_RAM);
80 unsigned long __init prom_free_prom_memory(void)
85 const char *get_system_type(void)
87 return "Toshiba RBTX4927/RBTX4937";