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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * linux/arch/arm/mm/proc-arm9tdmi.S: utility functions for ARM9TDMI
4 *
5 * Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com>
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 */
28SYM_TYPED_FUNC_START(cpu_arm9tdmi_proc_init)
29 ret lr
30SYM_FUNC_END(cpu_arm9tdmi_proc_init)
31
32SYM_TYPED_FUNC_START(cpu_arm9tdmi_do_idle)
33 ret lr
34SYM_FUNC_END(cpu_arm9tdmi_do_idle)
35
36SYM_TYPED_FUNC_START(cpu_arm9tdmi_dcache_clean_area)
37 ret lr
38SYM_FUNC_END(cpu_arm9tdmi_dcache_clean_area)
39
40SYM_TYPED_FUNC_START(cpu_arm9tdmi_switch_mm)
41 ret lr
42SYM_FUNC_END(cpu_arm9tdmi_switch_mm)
43
44/*
45 * cpu_arm9tdmi_proc_fin()
46 */
47SYM_TYPED_FUNC_START(cpu_arm9tdmi_proc_fin)
48 ret lr
49SYM_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 and jump to the location for soft reset.
55 */
56 .pushsection .idmap.text, "ax"
57SYM_TYPED_FUNC_START(cpu_arm9tdmi_reset)
58 ret r0
59SYM_FUNC_END(cpu_arm9tdmi_reset)
60 .popsection
61
62 .type __arm9tdmi_setup, #function
63__arm9tdmi_setup:
64 ret lr
65 .size __arm9tdmi_setup, . - __arm9tdmi_setup
66
67 __INITDATA
68
69 @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
70 define_processor_functions arm9tdmi, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1
71
72 .section ".rodata"
73
74 string cpu_arch_name, "armv4t"
75 string cpu_elf_name, "v4"
76 string cpu_arm9tdmi_name, "ARM9TDMI"
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:req, cpu_mask:req, cpu_name:req
84 .type __\name\()_proc_info, #object
85__\name\()_proc_info:
86 .long \cpu_val
87 .long \cpu_mask
88 .long 0
89 .long 0
90 initfn __arm9tdmi_setup, __\name\()_proc_info
91 .long cpu_arch_name
92 .long cpu_elf_name
93 .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
94 .long \cpu_name
95 .long arm9tdmi_processor_functions
96 .long 0
97 .long 0
98 .long v4_cache_fns
99 .size __\name\()_proc_info, . - __\name\()_proc_info
100.endm
101
102 arm9tdmi_proc_info arm9tdmi, 0x41009900, 0xfff8ff00, cpu_arm9tdmi_name
103 arm9tdmi_proc_info p2001, 0x41029000, 0xffffffff, cpu_p2001_name
1/*
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>
15#include <asm/hwcap.h>
16#include <asm/pgtable-hwdef.h>
17#include <asm/pgtable.h>
18#include <asm/ptrace.h>
19
20#include "proc-macros.S"
21
22 .text
23/*
24 * cpu_arm9tdmi_proc_init()
25 * cpu_arm9tdmi_do_idle()
26 * cpu_arm9tdmi_dcache_clean_area()
27 * cpu_arm9tdmi_switch_mm()
28 *
29 * These are not required.
30 */
31ENTRY(cpu_arm9tdmi_proc_init)
32ENTRY(cpu_arm9tdmi_do_idle)
33ENTRY(cpu_arm9tdmi_dcache_clean_area)
34ENTRY(cpu_arm9tdmi_switch_mm)
35 ret lr
36
37/*
38 * cpu_arm9tdmi_proc_fin()
39 */
40ENTRY(cpu_arm9tdmi_proc_fin)
41 ret lr
42
43/*
44 * Function: cpu_arm9tdmi_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 */
48 .pushsection .idmap.text, "ax"
49ENTRY(cpu_arm9tdmi_reset)
50 ret r0
51ENDPROC(cpu_arm9tdmi_reset)
52 .popsection
53
54 .type __arm9tdmi_setup, #function
55__arm9tdmi_setup:
56 ret lr
57 .size __arm9tdmi_setup, . - __arm9tdmi_setup
58
59 __INITDATA
60
61 @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
62 define_processor_functions arm9tdmi, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1
63
64 .section ".rodata"
65
66 string cpu_arch_name, "armv4t"
67 string cpu_elf_name, "v4"
68 string cpu_arm9tdmi_name, "ARM9TDMI"
69 string cpu_p2001_name, "P2001"
70
71 .align
72
73 .section ".proc.info.init", #alloc
74
75.macro arm9tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req
76 .type __\name\()_proc_info, #object
77__\name\()_proc_info:
78 .long \cpu_val
79 .long \cpu_mask
80 .long 0
81 .long 0
82 initfn __arm9tdmi_setup, __\name\()_proc_info
83 .long cpu_arch_name
84 .long cpu_elf_name
85 .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
86 .long \cpu_name
87 .long arm9tdmi_processor_functions
88 .long 0
89 .long 0
90 .long v4_cache_fns
91 .size __\name\()_proc_info, . - __\name\()_proc_info
92.endm
93
94 arm9tdmi_proc_info arm9tdmi, 0x41009900, 0xfff8ff00, cpu_arm9tdmi_name
95 arm9tdmi_proc_info p2001, 0x41029000, 0xffffffff, cpu_p2001_name