| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * BRIEF MODULE DESCRIPTION |
| 3 | * IVR board setup. |
| 4 | * |
| 5 | * Copyright 2000 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 | #include <asm/it8172/it8172.h> |
| 38 | #include <asm/it8172/it8172_dbg.h> |
| 39 | |
| 40 | int prom_argc; |
| 41 | char **prom_argv, **prom_envp; |
| 42 | |
| 43 | extern char _end; |
| 44 | extern void __init prom_init_cmdline(void); |
| 45 | extern unsigned long __init prom_get_memsize(void); |
| 46 | extern void __init it8172_init_ram_resource(unsigned long memsize); |
| 47 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | const char *get_system_type(void) |
| 49 | { |
| 50 | return "Globespan IVR"; |
| 51 | } |
| 52 | |
| 53 | void __init prom_init(void) |
| 54 | { |
| 55 | unsigned long mem_size; |
| 56 | unsigned long pcicr; |
| 57 | |
| 58 | prom_argc = fw_arg0; |
| 59 | prom_argv = (char **) fw_arg1; |
| 60 | prom_envp = (int *) fw_arg3; |
| 61 | |
| 62 | mips_machgroup = MACH_GROUP_GLOBESPAN; |
| 63 | mips_machtype = MACH_IVR; /* Globespan's iTVC15 reference board */ |
| 64 | |
| 65 | prom_init_cmdline(); |
| 66 | |
| 67 | /* pmon does not set memsize */ |
| 68 | mem_size = prom_get_memsize(); |
| 69 | mem_size = mem_size << 20; |
| 70 | |
| 71 | /* |
| 72 | * make the entire physical memory visible to pci bus masters |
| 73 | */ |
| 74 | IT_READ(IT_MC_PCICR, pcicr); |
| 75 | pcicr &= ~0x1f; |
| 76 | pcicr |= (mem_size - 1) >> 22; |
| 77 | IT_WRITE(IT_MC_PCICR, pcicr); |
| 78 | |
| 79 | it8172_init_ram_resource(mem_size); |
| 80 | add_memory_region(0, mem_size, BOOT_MEM_RAM); |
| 81 | } |