1/* 2 * 3 * BRIEF MODULE DESCRIPTION 4 * Pb1100 board setup 5 * 6 * Copyright 2002 MontaVista Software Inc. 7 * Author: MontaVista Software, Inc. 8 * ppopov@mvista.com or source@mvista.com 9 * 10 * This program is free software; you can redistribute it and/or modify it 11 * under the terms of the GNU General Public License as published by the 12 * Free Software Foundation; either version 2 of the License, or (at your 13 * option) any later version. 14 * 15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 16 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 18 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 21 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 22 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * You should have received a copy of the GNU General Public License along 27 * with this program; if not, write to the Free Software Foundation, Inc., 28 * 675 Mass Ave, Cambridge, MA 02139, USA. 29 */ 30#include <linux/init.h> 31#include <linux/mm.h> 32#include <linux/sched.h> 33#include <linux/bootmem.h> 34#include <asm/addrspace.h> 35#include <asm/bootinfo.h> 36#include <linux/string.h> 37#include <linux/kernel.h> 38 39int prom_argc; 40char **prom_argv, **prom_envp; 41extern void __init prom_init_cmdline(void); 42extern char *prom_getenv(char *envname); 43 44const char *get_system_type(void) 45{ 46 return "Alchemy Pb1100"; 47} 48 49void __init prom_init(void) 50{ 51 unsigned char *memsize_str; 52 unsigned long memsize; 53 54 prom_argc = fw_arg0; 55 prom_argv = (char **) fw_arg1; 56 prom_envp = (char **) fw_arg3; 57 58 mips_machgroup = MACH_GROUP_ALCHEMY; 59 mips_machtype = MACH_PB1100; 60 61 prom_init_cmdline(); 62 63 memsize_str = prom_getenv("memsize"); 64 if (!memsize_str) 65 memsize = 0x04000000; 66 else 67 memsize = simple_strtol(memsize_str, NULL, 0); 68 69 add_memory_region(0, memsize, BOOT_MEM_RAM); 70} 71