diff options
Diffstat (limited to 'arch/mips/ite-boards/qed-4n-s01b/init.c')
-rw-r--r-- | arch/mips/ite-boards/qed-4n-s01b/init.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/mips/ite-boards/qed-4n-s01b/init.c b/arch/mips/ite-boards/qed-4n-s01b/init.c new file mode 100644 index 000000000000..56dca7e0c21d --- /dev/null +++ b/arch/mips/ite-boards/qed-4n-s01b/init.c | |||
@@ -0,0 +1,85 @@ | |||
1 | /* | ||
2 | * BRIEF MODULE DESCRIPTION | ||
3 | * IT8172/QED5231 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 | |||
48 | #define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) | ||
49 | #define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK) | ||
50 | |||
51 | const char *get_system_type(void) | ||
52 | { | ||
53 | return "ITE QED-4N-S01B"; | ||
54 | } | ||
55 | |||
56 | void __init prom_init(void) | ||
57 | { | ||
58 | unsigned long mem_size; | ||
59 | unsigned long pcicr; | ||
60 | |||
61 | prom_argc = fw_arg0; | ||
62 | prom_argv = (char **) fw_arg1; | ||
63 | prom_envp = (int *) fw_arg3; | ||
64 | |||
65 | mips_machgroup = MACH_GROUP_ITE; | ||
66 | mips_machtype = MACH_QED_4N_S01B; /* ITE board name/number */ | ||
67 | |||
68 | prom_init_cmdline(); | ||
69 | mem_size = prom_get_memsize(); | ||
70 | |||
71 | printk("Memory size: %dMB\n", (unsigned)mem_size); | ||
72 | |||
73 | mem_size <<= 20; /* MB */ | ||
74 | |||
75 | /* | ||
76 | * make the entire physical memory visible to pci bus masters | ||
77 | */ | ||
78 | IT_READ(IT_MC_PCICR, pcicr); | ||
79 | pcicr &= ~0x1f; | ||
80 | pcicr |= (mem_size - 1) >> 22; | ||
81 | IT_WRITE(IT_MC_PCICR, pcicr); | ||
82 | |||
83 | it8172_init_ram_resource(mem_size); | ||
84 | add_memory_region(0, mem_size, BOOT_MEM_RAM); | ||
85 | } | ||