1/*
2 *  linux/arch/arm/mm/proc-arm7tdmi.S: utility functions for ARM7TDMI
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>
15#include <asm/elf.h>
16#include <asm/pgtable-hwdef.h>
17#include <asm/pgtable.h>
18#include <asm/ptrace.h>
19
20	.text
21/*
22 * cpu_arm7tdmi_proc_init()
23 * cpu_arm7tdmi_do_idle()
24 * cpu_arm7tdmi_dcache_clean_area()
25 * cpu_arm7tdmi_switch_mm()
26 *
27 * These are not required.
28 */
29ENTRY(cpu_arm7tdmi_proc_init)
30ENTRY(cpu_arm7tdmi_do_idle)
31ENTRY(cpu_arm7tdmi_dcache_clean_area)
32ENTRY(cpu_arm7tdmi_switch_mm)
33		mov	pc, lr
34
35/*
36 * cpu_arm7tdmi_proc_fin()
37 */
38ENTRY(cpu_arm7tdmi_proc_fin)
39		mov	r0, #PSR_F_BIT | PSR_I_BIT | SVC_MODE
40		msr	cpsr_c, r0
41		mov	pc, lr
42
43/*
44 * Function: cpu_arm7tdmi_reset(loc)
45 * Params  : loc(r0)	address to jump to
46 * Purpose : Sets up everything for a reset and jump to the location for soft reset.
47 */
48ENTRY(cpu_arm7tdmi_reset)
49		mov	pc, r0
50
51		__INIT
52
53		.type	__arm7tdmi_setup, #function
54__arm7tdmi_setup:
55		mov	pc, lr
56		.size	__arm7tdmi_setup, . - __arm7tdmi_setup
57
58		__INITDATA
59
60/*
61 * Purpose : Function pointers used to access above functions - all calls
62 *	     come through these
63 */
64		.type	arm7tdmi_processor_functions, #object
65ENTRY(arm7tdmi_processor_functions)
66		.word	v4t_late_abort
67		.word	cpu_arm7tdmi_proc_init
68		.word	cpu_arm7tdmi_proc_fin
69		.word	cpu_arm7tdmi_reset
70		.word	cpu_arm7tdmi_do_idle
71		.word	cpu_arm7tdmi_dcache_clean_area
72		.word	cpu_arm7tdmi_switch_mm
73		.word	0		@ cpu_*_set_pte
74		.size	arm7tdmi_processor_functions, . - arm7tdmi_processor_functions
75
76		.section ".rodata"
77
78		.type	cpu_arch_name, #object
79cpu_arch_name:
80		.asciz	"armv4t"
81		.size	cpu_arch_name, . - cpu_arch_name
82
83		.type	cpu_elf_name, #object
84cpu_elf_name:
85		.asciz	"v4"
86		.size	cpu_elf_name, . - cpu_elf_name
87
88		.type	cpu_arm7tdmi_name, #object
89cpu_arm7tdmi_name:
90		.asciz	"ARM7TDMI"
91		.size	cpu_arm7tdmi_name, . - cpu_arm7tdmi_name
92
93		.type	cpu_triscenda7_name, #object
94cpu_triscenda7_name:
95		.asciz	"Triscend-A7x"
96		.size	cpu_triscenda7_name, . - cpu_triscenda7_name
97
98		.type	cpu_at91_name, #object
99cpu_at91_name:
100		.asciz	"Atmel-AT91M40xxx"
101		.size	cpu_at91_name, . - cpu_at91_name
102
103		.type	cpu_s3c3410_name, #object
104cpu_s3c3410_name:
105		.asciz	"Samsung-S3C3410"
106		.size	cpu_s3c3410_name, . - cpu_s3c3410_name
107
108		.type	cpu_s3c44b0x_name, #object
109cpu_s3c44b0x_name:
110		.asciz	"Samsung-S3C44B0x"
111		.size	cpu_s3c44b0x_name, . - cpu_s3c44b0x_name
112
113		.type	cpu_s3c4510b, #object
114cpu_s3c4510b_name:
115		.asciz	"Samsung-S3C4510B"
116		.size	cpu_s3c4510b_name, . - cpu_s3c4510b_name
117
118		.type	cpu_s3c4530_name, #object
119cpu_s3c4530_name:
120		.asciz	"Samsung-S3C4530"
121		.size	cpu_s3c4530_name, . - cpu_s3c4530_name
122
123		.type	cpu_netarm_name, #object
124cpu_netarm_name:
125		.asciz	"NETARM"
126		.size	cpu_netarm_name, . - cpu_netarm_name
127
128		.align
129
130		.section ".proc.info.init", #alloc, #execinstr
131
132		.type	__arm7tdmi_proc_info, #object
133__arm7tdmi_proc_info:
134		.long	0x41007700
135		.long	0xfff8ff00
136		.long	0
137		.long	0
138		b	__arm7tdmi_setup
139		.long	cpu_arch_name
140		.long	cpu_elf_name
141		.long	HWCAP_SWP | HWCAP_26BIT
142		.long	cpu_arm7tdmi_name
143		.long	arm7tdmi_processor_functions
144		.long	0
145		.long	0
146		.long	v4_cache_fns
147		.size	__arm7tdmi_proc_info, . - __arm7dmi_proc_info
148
149		.type	__triscenda7_proc_info, #object
150__triscenda7_proc_info:
151		.long	0x0001d2ff
152		.long	0x0001ffff
153		.long	0
154		.long	0
155		b	__arm7tdmi_setup
156		.long	cpu_arch_name
157		.long	cpu_elf_name
158		.long	HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
159		.long	cpu_triscenda7_name
160		.long	arm7tdmi_processor_functions
161		.long	0
162		.long	0
163		.long	v4_cache_fns
164		.size	__triscenda7_proc_info, . - __triscenda7_proc_info
165
166		.type	__at91_proc_info, #object
167__at91_proc_info:
168		.long	0x14000040
169		.long	0xfff000e0
170		.long	0
171		.long	0
172		b	__arm7tdmi_setup
173		.long	cpu_arch_name
174		.long	cpu_elf_name
175		.long	HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
176		.long	cpu_at91_name
177		.long	arm7tdmi_processor_functions
178		.long	0
179		.long	0
180		.long	v4_cache_fns
181		.size	__at91_proc_info, . - __at91_proc_info
182
183		.type	__s3c4510b_proc_info, #object
184__s3c4510b_proc_info:
185		.long	0x36365000
186		.long	0xfffff000
187		.long	0
188		.long	0
189		b	__arm7tdmi_setup
190		.long	cpu_arch_name
191		.long	cpu_elf_name
192		.long	HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
193		.long	cpu_s3c4510b_name
194		.long	arm7tdmi_processor_functions
195		.long	0
196		.long	0
197		.long	v4_cache_fns
198		.size	__s3c4510b_proc_info, . - __s3c4510b_proc_info
199
200		.type	__s3c4530_proc_info, #object
201__s3c4530_proc_info:
202		.long	0x4c000000
203		.long	0xfff000e0
204		.long	0
205		.long	0
206		b	__arm7tdmi_setup
207		.long	cpu_arch_name
208		.long	cpu_elf_name
209		.long	HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
210		.long	cpu_s3c4530_name
211		.long	arm7tdmi_processor_functions
212		.long	0
213		.long	0
214		.long	v4_cache_fns
215		.size	__s3c4530_proc_info, . - __s3c4530_proc_info
216
217		.type	__s3c3410_proc_info, #object
218__s3c3410_proc_info:
219		.long	0x34100000
220		.long	0xffff0000
221		.long	0
222		.long	0
223		b	__arm7tdmi_setup
224		.long	cpu_arch_name
225		.long	cpu_elf_name
226		.long	HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
227		.long	cpu_s3c3410_name
228		.long	arm7tdmi_processor_functions
229		.long	0
230		.long	0
231		.long	v4_cache_fns
232		.size	__s3c3410_proc_info, . - __s3c3410_proc_info
233
234		.type	__s3c44b0x_proc_info, #object
235__s3c44b0x_proc_info:
236		.long	0x44b00000
237		.long	0xffff0000
238		.long	0
239		.long	0
240		b	__arm7tdmi_setup
241		.long	cpu_arch_name
242		.long	cpu_elf_name
243		.long	HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
244		.long	cpu_s3c44b0x_name
245		.long	arm7tdmi_processor_functions
246		.long	0
247		.long	0
248		.long	v4_cache_fns
249		.size	__s3c44b0x_proc_info, . - __s3c44b0x_proc_info
250