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Hyok S. Choi43f5f012006-09-26 17:38:05 +09001/*
2 * linux/arch/arm/mm/proc-arm9tdmi.S: utility functions for ARM9TDMI
3 *
4 * Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 */
11#include <linux/linkage.h>
12#include <linux/init.h>
13#include <asm/assembler.h>
14#include <asm/asm-offsets.h>
Russell King5ec94072008-09-07 19:15:31 +010015#include <asm/hwcap.h>
Hyok S. Choi43f5f012006-09-26 17:38:05 +090016#include <asm/pgtable-hwdef.h>
17#include <asm/pgtable.h>
Hyok S. Choi43f5f012006-09-26 17:38:05 +090018#include <asm/ptrace.h>
19
20 .text
21/*
22 * cpu_arm9tdmi_proc_init()
23 * cpu_arm9tdmi_do_idle()
24 * cpu_arm9tdmi_dcache_clean_area()
25 * cpu_arm9tdmi_switch_mm()
26 *
27 * These are not required.
28 */
29ENTRY(cpu_arm9tdmi_proc_init)
30ENTRY(cpu_arm9tdmi_do_idle)
31ENTRY(cpu_arm9tdmi_dcache_clean_area)
32ENTRY(cpu_arm9tdmi_switch_mm)
33 mov pc, lr
34
35/*
36 * cpu_arm9tdmi_proc_fin()
37 */
38ENTRY(cpu_arm9tdmi_proc_fin)
Hyok S. Choi43f5f012006-09-26 17:38:05 +090039 mov pc, lr
40
41/*
42 * Function: cpu_arm9tdmi_reset(loc)
43 * Params : loc(r0) address to jump to
44 * Purpose : Sets up everything for a reset and jump to the location for soft reset.
45 */
46ENTRY(cpu_arm9tdmi_reset)
47 mov pc, r0
48
Russell King5085f3f2010-10-01 15:37:05 +010049 __CPUINIT
Hyok S. Choi43f5f012006-09-26 17:38:05 +090050
51 .type __arm9tdmi_setup, #function
52__arm9tdmi_setup:
53 mov pc, lr
54 .size __arm9tdmi_setup, . - __arm9tdmi_setup
55
56 __INITDATA
57
58/*
59 * Purpose : Function pointers used to access above functions - all calls
60 * come through these
61 */
62 .type arm9tdmi_processor_functions, #object
63ENTRY(arm9tdmi_processor_functions)
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +090064 .word nommu_early_abort
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010065 .word legacy_pabort
Hyok S. Choi43f5f012006-09-26 17:38:05 +090066 .word cpu_arm9tdmi_proc_init
67 .word cpu_arm9tdmi_proc_fin
68 .word cpu_arm9tdmi_reset
69 .word cpu_arm9tdmi_do_idle
70 .word cpu_arm9tdmi_dcache_clean_area
71 .word cpu_arm9tdmi_switch_mm
72 .word 0 @ cpu_*_set_pte
Russell Kingf6b0fa02011-02-06 15:48:39 +000073 .word 0
74 .word 0
75 .word 0
Hyok S. Choi43f5f012006-09-26 17:38:05 +090076 .size arm9tdmi_processor_functions, . - arm9tdmi_processor_functions
77
78 .section ".rodata"
79
80 .type cpu_arch_name, #object
81cpu_arch_name:
82 .asciz "armv4t"
83 .size cpu_arch_name, . - cpu_arch_name
84
85 .type cpu_elf_name, #object
86cpu_elf_name:
87 .asciz "v4"
88 .size cpu_elf_name, . - cpu_elf_name
89
90 .type cpu_arm9tdmi_name, #object
91cpu_arm9tdmi_name:
92 .asciz "ARM9TDMI"
93 .size cpu_arm9tdmi_name, . - cpu_arm9tdmi_name
94
95 .type cpu_p2001_name, #object
96cpu_p2001_name:
97 .asciz "P2001"
98 .size cpu_p2001_name, . - cpu_p2001_name
99
100 .align
101
102 .section ".proc.info.init", #alloc, #execinstr
103
104 .type __arm9tdmi_proc_info, #object
105__arm9tdmi_proc_info:
106 .long 0x41009900
107 .long 0xfff8ff00
108 .long 0
109 .long 0
110 b __arm9tdmi_setup
111 .long cpu_arch_name
112 .long cpu_elf_name
113 .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
114 .long cpu_arm9tdmi_name
115 .long arm9tdmi_processor_functions
116 .long 0
117 .long 0
118 .long v4_cache_fns
Ben Hutchings9a819d82011-05-31 08:09:39 +0100119 .size __arm9tdmi_proc_info, . - __arm9tdmi_proc_info
Hyok S. Choi43f5f012006-09-26 17:38:05 +0900120
121 .type __p2001_proc_info, #object
122__p2001_proc_info:
123 .long 0x41029000
124 .long 0xffffffff
125 .long 0
126 .long 0
127 b __arm9tdmi_setup
128 .long cpu_arch_name
129 .long cpu_elf_name
130 .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
131 .long cpu_p2001_name
132 .long arm9tdmi_processor_functions
133 .long 0
134 .long 0
135 .long v4_cache_fns
136 .size __p2001_proc_info, . - __p2001_proc_info