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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * linux/arch/arm/mm/proc-arm7tdmi.S: utility functions for ARM7TDMI
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_arm7tdmi_proc_init()
22 * cpu_arm7tdmi_do_idle()
23 * cpu_arm7tdmi_dcache_clean_area()
24 * cpu_arm7tdmi_switch_mm()
25 *
26 * These are not required.
27*/
28SYM_TYPED_FUNC_START(cpu_arm7tdmi_proc_init)
29 ret lr
30SYM_FUNC_END(cpu_arm7tdmi_proc_init)
31
32SYM_TYPED_FUNC_START(cpu_arm7tdmi_do_idle)
33 ret lr
34SYM_FUNC_END(cpu_arm7tdmi_do_idle)
35
36SYM_TYPED_FUNC_START(cpu_arm7tdmi_dcache_clean_area)
37 ret lr
38SYM_FUNC_END(cpu_arm7tdmi_dcache_clean_area)
39
40SYM_TYPED_FUNC_START(cpu_arm7tdmi_switch_mm)
41 ret lr
42SYM_FUNC_END(cpu_arm7tdmi_switch_mm)
43
44/*
45 * cpu_arm7tdmi_proc_fin()
46*/
47SYM_TYPED_FUNC_START(cpu_arm7tdmi_proc_fin)
48 ret lr
49SYM_FUNC_END(cpu_arm7tdmi_proc_fin)
50
51/*
52 * Function: cpu_arm7tdmi_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_arm7tdmi_reset)
58 ret r0
59SYM_FUNC_END(cpu_arm7tdmi_reset)
60 .popsection
61
62 .type __arm7tdmi_setup, #function
63__arm7tdmi_setup:
64 ret lr
65 .size __arm7tdmi_setup, . - __arm7tdmi_setup
66
67 __INITDATA
68
69 @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
70 define_processor_functions arm7tdmi, dabort=v4t_late_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_arm7tdmi_name, "ARM7TDMI"
77 string cpu_triscenda7_name, "Triscend-A7x"
78 string cpu_at91_name, "Atmel-AT91M40xxx"
79 string cpu_s3c3410_name, "Samsung-S3C3410"
80 string cpu_s3c44b0x_name, "Samsung-S3C44B0x"
81 string cpu_s3c4510b_name, "Samsung-S3C4510B"
82 string cpu_s3c4530_name, "Samsung-S3C4530"
83 string cpu_netarm_name, "NETARM"
84
85 .align
86
87 .section ".proc.info.init", "a"
88
89.macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \
90 extra_hwcaps=0
91 .type __\name\()_proc_info, #object
92__\name\()_proc_info:
93 .long \cpu_val
94 .long \cpu_mask
95 .long 0
96 .long 0
97 initfn __arm7tdmi_setup, __\name\()_proc_info
98 .long cpu_arch_name
99 .long cpu_elf_name
100 .long HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps )
101 .long \cpu_name
102 .long arm7tdmi_processor_functions
103 .long 0
104 .long 0
105 .long v4_cache_fns
106 .size __\name\()_proc_info, . - __\name\()_proc_info
107.endm
108
109 arm7tdmi_proc_info arm7tdmi, 0x41007700, 0xfff8ff00, \
110 cpu_arm7tdmi_name
111 arm7tdmi_proc_info triscenda7, 0x0001d2ff, 0x0001ffff, \
112 cpu_triscenda7_name, extra_hwcaps=HWCAP_THUMB
113 arm7tdmi_proc_info at91, 0x14000040, 0xfff000e0, \
114 cpu_at91_name, extra_hwcaps=HWCAP_THUMB
115 arm7tdmi_proc_info s3c4510b, 0x36365000, 0xfffff000, \
116 cpu_s3c4510b_name, extra_hwcaps=HWCAP_THUMB
117 arm7tdmi_proc_info s3c4530, 0x4c000000, 0xfff000e0, \
118 cpu_s3c4530_name, extra_hwcaps=HWCAP_THUMB
119 arm7tdmi_proc_info s3c3410, 0x34100000, 0xffff0000, \
120 cpu_s3c3410_name, extra_hwcaps=HWCAP_THUMB
121 arm7tdmi_proc_info s3c44b0x, 0x44b00000, 0xffff0000, \
122 cpu_s3c44b0x_name, extra_hwcaps=HWCAP_THUMB
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/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_arm7tdmi_proc_init()
25 * cpu_arm7tdmi_do_idle()
26 * cpu_arm7tdmi_dcache_clean_area()
27 * cpu_arm7tdmi_switch_mm()
28 *
29 * These are not required.
30 */
31ENTRY(cpu_arm7tdmi_proc_init)
32ENTRY(cpu_arm7tdmi_do_idle)
33ENTRY(cpu_arm7tdmi_dcache_clean_area)
34ENTRY(cpu_arm7tdmi_switch_mm)
35 mov pc, lr
36
37/*
38 * cpu_arm7tdmi_proc_fin()
39 */
40ENTRY(cpu_arm7tdmi_proc_fin)
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 __CPUINIT
52
53 .type __arm7tdmi_setup, #function
54__arm7tdmi_setup:
55 mov pc, lr
56 .size __arm7tdmi_setup, . - __arm7tdmi_setup
57
58 __INITDATA
59
60 @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
61 define_processor_functions arm7tdmi, dabort=v4t_late_abort, pabort=legacy_pabort, nommu=1
62
63 .section ".rodata"
64
65 string cpu_arch_name, "armv4t"
66 string cpu_elf_name, "v4"
67 string cpu_arm7tdmi_name, "ARM7TDMI"
68 string cpu_triscenda7_name, "Triscend-A7x"
69 string cpu_at91_name, "Atmel-AT91M40xxx"
70 string cpu_s3c3410_name, "Samsung-S3C3410"
71 string cpu_s3c44b0x_name, "Samsung-S3C44B0x"
72 string cpu_s3c4510b_name, "Samsung-S3C4510B"
73 string cpu_s3c4530_name, "Samsung-S3C4530"
74 string cpu_netarm_name, "NETARM"
75
76 .align
77
78 .section ".proc.info.init", #alloc, #execinstr
79
80.macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \
81 extra_hwcaps=0
82 .type __\name\()_proc_info, #object
83__\name\()_proc_info:
84 .long \cpu_val
85 .long \cpu_mask
86 .long 0
87 .long 0
88 b __arm7tdmi_setup
89 .long cpu_arch_name
90 .long cpu_elf_name
91 .long HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps )
92 .long \cpu_name
93 .long arm7tdmi_processor_functions
94 .long 0
95 .long 0
96 .long v4_cache_fns
97 .size __\name\()_proc_info, . - __\name\()_proc_info
98.endm
99
100 arm7tdmi_proc_info arm7tdmi, 0x41007700, 0xfff8ff00, \
101 cpu_arm7tdmi_name
102 arm7tdmi_proc_info triscenda7, 0x0001d2ff, 0x0001ffff, \
103 cpu_triscenda7_name, extra_hwcaps=HWCAP_THUMB
104 arm7tdmi_proc_info at91, 0x14000040, 0xfff000e0, \
105 cpu_at91_name, extra_hwcaps=HWCAP_THUMB
106 arm7tdmi_proc_info s3c4510b, 0x36365000, 0xfffff000, \
107 cpu_s3c4510b_name, extra_hwcaps=HWCAP_THUMB
108 arm7tdmi_proc_info s3c4530, 0x4c000000, 0xfff000e0, \
109 cpu_s3c4530_name, extra_hwcaps=HWCAP_THUMB
110 arm7tdmi_proc_info s3c3410, 0x34100000, 0xffff0000, \
111 cpu_s3c3410_name, extra_hwcaps=HWCAP_THUMB
112 arm7tdmi_proc_info s3c44b0x, 0x44b00000, 0xffff0000, \
113 cpu_s3c44b0x_name, extra_hwcaps=HWCAP_THUMB