| /* |
| * BRIEF MODULE DESCRIPTION |
| * IT8172/QED5231 board setup. |
| * |
| * Copyright 2000 MontaVista Software Inc. |
| * Author: MontaVista Software, Inc. |
| * ppopov@mvista.com or source@mvista.com |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| #include <linux/init.h> |
| #include <linux/mm.h> |
| #include <linux/sched.h> |
| #include <linux/bootmem.h> |
| #include <asm/addrspace.h> |
| #include <asm/bootinfo.h> |
| #include <linux/string.h> |
| #include <linux/kernel.h> |
| #include <asm/sections.h> |
| #include <asm/it8172/it8172.h> |
| #include <asm/it8172/it8172_dbg.h> |
| |
| int prom_argc; |
| char **prom_argv, **prom_envp; |
| |
| extern void __init prom_init_cmdline(void); |
| extern unsigned long __init prom_get_memsize(void); |
| extern void __init it8172_init_ram_resource(unsigned long memsize); |
| |
| const char *get_system_type(void) |
| { |
| return "ITE QED-4N-S01B"; |
| } |
| |
| void __init prom_init(void) |
| { |
| unsigned long mem_size; |
| unsigned long pcicr; |
| |
| prom_argc = fw_arg0; |
| prom_argv = (char **) fw_arg1; |
| prom_envp = (int *) fw_arg3; |
| |
| mips_machgroup = MACH_GROUP_ITE; |
| mips_machtype = MACH_QED_4N_S01B; /* ITE board name/number */ |
| |
| prom_init_cmdline(); |
| mem_size = prom_get_memsize(); |
| |
| printk("Memory size: %dMB\n", (unsigned)mem_size); |
| |
| mem_size <<= 20; /* MB */ |
| |
| /* |
| * make the entire physical memory visible to pci bus masters |
| */ |
| IT_READ(IT_MC_PCICR, pcicr); |
| pcicr &= ~0x1f; |
| pcicr |= (mem_size - 1) >> 22; |
| IT_WRITE(IT_MC_PCICR, pcicr); |
| |
| it8172_init_ram_resource(mem_size); |
| add_memory_region(0, mem_size, BOOT_MEM_RAM); |
| } |