1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * linux/arch/arm/mm/proc-arm9tdmi.S: utility
4 *
5 * Copyright (C) 2003-2006 Hyok S. Choi <hyok.
6 */
7 #include <linux/linkage.h>
8 #include <linux/init.h>
9 #include <linux/cfi_types.h>
10 #include <linux/pgtable.h>
11 #include <asm/assembler.h>
12 #include <asm/asm-offsets.h>
13 #include <asm/hwcap.h>
14 #include <asm/pgtable-hwdef.h>
15 #include <asm/ptrace.h>
16
17 #include "proc-macros.S"
18
19 .text
20 /*
21 * cpu_arm9tdmi_proc_init()
22 * cpu_arm9tdmi_do_idle()
23 * cpu_arm9tdmi_dcache_clean_area()
24 * cpu_arm9tdmi_switch_mm()
25 *
26 * These are not required.
27 */
28 SYM_TYPED_FUNC_START(cpu_arm9tdmi_proc_init)
29 ret lr
30 SYM_FUNC_END(cpu_arm9tdmi_proc_init)
31
32 SYM_TYPED_FUNC_START(cpu_arm9tdmi_do_idle)
33 ret lr
34 SYM_FUNC_END(cpu_arm9tdmi_do_idle)
35
36 SYM_TYPED_FUNC_START(cpu_arm9tdmi_dcache_clean
37 ret lr
38 SYM_FUNC_END(cpu_arm9tdmi_dcache_clean_area)
39
40 SYM_TYPED_FUNC_START(cpu_arm9tdmi_switch_mm)
41 ret lr
42 SYM_FUNC_END(cpu_arm9tdmi_switch_mm)
43
44 /*
45 * cpu_arm9tdmi_proc_fin()
46 */
47 SYM_TYPED_FUNC_START(cpu_arm9tdmi_proc_fin)
48 ret lr
49 SYM_FUNC_END(cpu_arm9tdmi_proc_fin)
50
51 /*
52 * Function: cpu_arm9tdmi_reset(loc)
53 * Params : loc(r0) address to jump to
54 * Purpose : Sets up everything for a reset an
55 */
56 .pushsection .idmap.text, "
57 SYM_TYPED_FUNC_START(cpu_arm9tdmi_reset)
58 ret r0
59 SYM_FUNC_END(cpu_arm9tdmi_reset)
60 .popsection
61
62 .type __arm9tdmi_setup, #fun
63 __arm9tdmi_setup:
64 ret lr
65 .size __arm9tdmi_setup, . -
66
67 __INITDATA
68
69 @ define struct processor (see
70 define_processor_functions arm
71
72 .section ".rodata"
73
74 string cpu_arch_name, "armv4t
75 string cpu_elf_name, "v4"
76 string cpu_arm9tdmi_name, "AR
77 string cpu_p2001_name, "P2001
78
79 .align
80
81 .section ".proc.info.init", "a
82
83 .macro arm9tdmi_proc_info name:req, cpu_val:re
84 .type __\name\()_proc_info,
85 __\name\()_proc_info:
86 .long \cpu_val
87 .long \cpu_mask
88 .long 0
89 .long 0
90 initfn __arm9tdmi_setup, __\n
91 .long cpu_arch_name
92 .long cpu_elf_name
93 .long HWCAP_SWP | HWCAP_THUM
94 .long \cpu_name
95 .long arm9tdmi_processor_fun
96 .long 0
97 .long 0
98 .long v4_cache_fns
99 .size __\name\()_proc_info,
100 .endm
101
102 arm9tdmi_proc_info arm9tdmi, 0x4100990
103 arm9tdmi_proc_info p2001, 0x41029000,
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