3 * BRIEF MODULE DESCRIPTION
4 * IT8172/QED5231 board setup.
6 * Copyright 2000 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 * ppopov@mvista.com or source@mvista.com
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.
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.
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.
30 #include <linux/init.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 #include <linux/sched.h>
39 #include <asm/it8172/it8172.h>
40 #include <asm/it8172/it8172_dbg.h>
43 char **prom_argv, **prom_envp;
46 extern void __init prom_init_cmdline(void);
47 extern unsigned long __init prom_get_memsize(void);
48 extern void __init it8172_init_ram_resource(unsigned long memsize);
50 #define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
51 #define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK)
53 const char *get_system_type(void)
55 return "ITE QED-4N-S01B";
58 int __init prom_init(int argc, char **argv, char **envp, int *prom_vec)
60 unsigned long mem_size;
67 puts("ITE board running...");
69 mips_machgroup = MACH_GROUP_ITE;
70 mips_machtype = MACH_QED_4N_S01B; /* ITE board name/number */
73 mem_size = prom_get_memsize();
75 printk("Memory size: %dMB\n", (unsigned)mem_size);
77 mem_size <<= 20; /* MB */
80 * make the entire physical memory visible to pci bus masters
82 IT_READ(IT_MC_PCICR, pcicr);
84 pcicr |= (mem_size - 1) >> 22;
85 IT_WRITE(IT_MC_PCICR, pcicr);
87 it8172_init_ram_resource(mem_size);
88 add_memory_region(0, mem_size, BOOT_MEM_RAM);