1/* 2 * Common code used by all Alchemy develboards. 3 * 4 * Extracted from files which had this to say: 5 * 6 * Copyright 2000, 2008 MontaVista Software Inc. 7 * Author: MontaVista Software, Inc. <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 30#include <linux/init.h> 31#include <linux/kernel.h> 32#include <asm/bootinfo.h> 33#include <asm/mach-au1x00/au1000.h> 34#include <prom.h> 35 36#if defined(CONFIG_MIPS_PB1000) || defined(CONFIG_MIPS_DB1000) || \ 37 defined(CONFIG_MIPS_PB1100) || defined(CONFIG_MIPS_DB1100) || \ 38 defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_DB1500) || \ 39 defined(CONFIG_MIPS_BOSPORUS) || defined(CONFIG_MIPS_MIRAGE) 40#define ALCHEMY_BOARD_DEFAULT_MEMSIZE 0x04000000 41 42#else /* Au1550/Au1200-based develboards */ 43#define ALCHEMY_BOARD_DEFAULT_MEMSIZE 0x08000000 44#endif 45 46void __init prom_init(void) 47{ 48 unsigned char *memsize_str; 49 unsigned long memsize; 50 51 prom_argc = (int)fw_arg0; 52 prom_argv = (char **)fw_arg1; 53 prom_envp = (char **)fw_arg2; 54 55 prom_init_cmdline(); 56 memsize_str = prom_getenv("memsize"); 57 if (!memsize_str || strict_strtoul(memsize_str, 0, &memsize)) 58 memsize = ALCHEMY_BOARD_DEFAULT_MEMSIZE; 59 60 add_memory_region(0, memsize, BOOT_MEM_RAM); 61} 62 63void prom_putchar(unsigned char c) 64{ 65 alchemy_uart_putchar(UART0_PHYS_ADDR, c); 66} 67