Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * rbtx4927 specific prom routines |
| 3 | * |
| 4 | * Author: MontaVista Software, Inc. |
| 5 | * source@mvista.com |
| 6 | * |
| 7 | * Copyright 2001-2002 MontaVista Software Inc. |
| 8 | * |
| 9 | * Copyright (C) 2004 MontaVista Software Inc. |
| 10 | * Author: Manish Lachwani, mlachwani@mvista.com |
| 11 | * |
| 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. |
| 16 | * |
| 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. |
| 27 | * |
| 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. |
| 31 | */ |
| 32 | #include <linux/init.h> |
| 33 | #include <linux/mm.h> |
| 34 | #include <linux/sched.h> |
| 35 | #include <linux/bootmem.h> |
| 36 | |
| 37 | #include <asm/addrspace.h> |
| 38 | #include <asm/bootinfo.h> |
| 39 | #include <asm/cpu.h> |
| 40 | #include <asm/tx4927/tx4927.h> |
| 41 | |
| 42 | void __init prom_init_cmdline(void) |
| 43 | { |
| 44 | int argc = (int) fw_arg0; |
| 45 | char **argv = (char **) fw_arg1; |
| 46 | int i; /* Always ignore the "-c" at argv[0] */ |
| 47 | |
| 48 | /* ignore all built-in args if any f/w args given */ |
| 49 | if (argc > 1) { |
| 50 | *arcs_cmdline = '\0'; |
| 51 | } |
| 52 | |
| 53 | for (i = 1; i < argc; i++) { |
| 54 | if (i != 1) { |
| 55 | strcat(arcs_cmdline, " "); |
| 56 | } |
| 57 | strcat(arcs_cmdline, argv[i]); |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | void __init prom_init(void) |
| 62 | { |
| 63 | const char* toshiba_name_list[] = GROUP_TOSHIBA_NAMES; |
| 64 | extern int tx4927_get_mem_size(void); |
| 65 | extern char* toshiba_name; |
| 66 | int msize; |
| 67 | |
| 68 | prom_init_cmdline(); |
| 69 | |
| 70 | mips_machgroup = MACH_GROUP_TOSHIBA; |
| 71 | |
| 72 | if ((read_c0_prid() & 0xff) == PRID_REV_TX4927) |
| 73 | mips_machtype = MACH_TOSHIBA_RBTX4927; |
| 74 | else |
| 75 | mips_machtype = MACH_TOSHIBA_RBTX4937; |
| 76 | |
| 77 | toshiba_name = toshiba_name_list[mips_machtype]; |
| 78 | |
| 79 | msize = tx4927_get_mem_size(); |
| 80 | add_memory_region(0, msize << 20, BOOT_MEM_RAM); |
| 81 | } |
| 82 | |
| 83 | unsigned long __init prom_free_prom_memory(void) |
| 84 | { |
| 85 | return 0; |
| 86 | } |
| 87 | |
| 88 | const char *get_system_type(void) |
| 89 | { |
| 90 | return "Toshiba RBTX4927/RBTX4937"; |
| 91 | } |
| 92 | |
| 93 | char * __init prom_getcmdline(void) |
| 94 | { |
| 95 | return &(arcs_cmdline[0]); |
| 96 | } |
| 97 | |