1/* 2 * BRIEF MODULE DESCRIPTION 3 * PB1000 board setup 4 * 5 * Copyright 2001 MontaVista Software Inc. 6 * Author: MontaVista Software, Inc. 7 * ppopov@mvista.com or source@mvista.com 8 * 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. 13 * 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. IN 17 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 20 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 21 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 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. 28 */ 29#include <linux/init.h> 30#include <linux/mm.h> 31#include <linux/sched.h> 32#include <linux/bootmem.h> 33#include <asm/addrspace.h> 34#include <asm/bootinfo.h> 35#include <linux/string.h> 36#include <linux/kernel.h> 37 38int prom_argc; 39char **prom_argv, **prom_envp; 40extern void __init prom_init_cmdline(void); 41extern char *prom_getenv(char *envname); 42 43const char *get_system_type(void) 44{ 45 return "Alchemy Pb1000"; 46} 47 48void __init prom_init(void) 49{ 50 unsigned char *memsize_str; 51 unsigned long memsize; 52 53 prom_argc = (int) fw_arg0; 54 prom_argv = (char **) fw_arg1; 55 prom_envp = (char **) fw_arg2; 56 57 mips_machgroup = MACH_GROUP_ALCHEMY; 58 mips_machtype = MACH_PB1000; 59 60 prom_init_cmdline(); 61 memsize_str = prom_getenv("memsize"); 62 if (!memsize_str) { 63 memsize = 0x04000000; 64 } else { 65 memsize = simple_strtol(memsize_str, NULL, 0); 66 } 67 add_memory_region(0, memsize, BOOT_MEM_RAM); 68} 69