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-rw-r--r--arch/arm/mm/Kconfig13
-rw-r--r--arch/arm/mm/Makefile1
-rw-r--r--arch/arm/mm/proc-arm9tdmi.S134
3 files changed, 148 insertions, 0 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 87f9fece9606..ed9d32c2469e 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -90,6 +90,19 @@ config CPU_ARM740T
90 Say Y if you want support for the ARM740T processor. 90 Say Y if you want support for the ARM740T processor.
91 Otherwise, say N. 91 Otherwise, say N.
92 92
93# ARM9TDMI
94config CPU_ARM9TDMI
95 bool "Support ARM9TDMI processor"
96 select CPU_32v4T
97 select CPU_ABRT_EV4T
98 select CPU_CACHE_V4
99 help
100 A 32-bit RISC microprocessor based on the ARM9 processor core
101 which has no memory control unit and cache.
102
103 Say Y if you want support for the ARM9TDMI processor.
104 Otherwise, say N.
105
93# ARM920T 106# ARM920T
94config CPU_ARM920T 107config CPU_ARM920T
95 bool "Support ARM920T processor" 108 bool "Support ARM920T processor"
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index d10db822d3b8..053957eebe24 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -49,6 +49,7 @@ obj-$(CONFIG_CPU_ARM710) += proc-arm6_7.o
49obj-$(CONFIG_CPU_ARM7TDMI) += proc-arm7tdmi.o 49obj-$(CONFIG_CPU_ARM7TDMI) += proc-arm7tdmi.o
50obj-$(CONFIG_CPU_ARM720T) += proc-arm720.o 50obj-$(CONFIG_CPU_ARM720T) += proc-arm720.o
51obj-$(CONFIG_CPU_ARM740T) += proc-arm740.o 51obj-$(CONFIG_CPU_ARM740T) += proc-arm740.o
52obj-$(CONFIG_CPU_ARM9TDMI) += proc-arm9tdmi.o
52obj-$(CONFIG_CPU_ARM920T) += proc-arm920.o 53obj-$(CONFIG_CPU_ARM920T) += proc-arm920.o
53obj-$(CONFIG_CPU_ARM922T) += proc-arm922.o 54obj-$(CONFIG_CPU_ARM922T) += proc-arm922.o
54obj-$(CONFIG_CPU_ARM925T) += proc-arm925.o 55obj-$(CONFIG_CPU_ARM925T) += proc-arm925.o
diff --git a/arch/arm/mm/proc-arm9tdmi.S b/arch/arm/mm/proc-arm9tdmi.S
new file mode 100644
index 000000000000..95c90f13caa8
--- /dev/null
+++ b/arch/arm/mm/proc-arm9tdmi.S
@@ -0,0 +1,134 @@
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/pgtable-hwdef.h>
16#include <asm/pgtable.h>
17#include <asm/procinfo.h>
18#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)
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_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 */
48ENTRY(cpu_arm9tdmi_reset)
49 mov pc, r0
50
51 __INIT
52
53 .type __arm9tdmi_setup, #function
54__arm9tdmi_setup:
55 mov pc, lr
56 .size __arm9tdmi_setup, . - __arm9tdmi_setup
57
58 __INITDATA
59
60/*
61 * Purpose : Function pointers used to access above functions - all calls
62 * come through these
63 */
64 .type arm9tdmi_processor_functions, #object
65ENTRY(arm9tdmi_processor_functions)
66 .word v4t_early_abort
67 .word cpu_arm9tdmi_proc_init
68 .word cpu_arm9tdmi_proc_fin
69 .word cpu_arm9tdmi_reset
70 .word cpu_arm9tdmi_do_idle
71 .word cpu_arm9tdmi_dcache_clean_area
72 .word cpu_arm9tdmi_switch_mm
73 .word 0 @ cpu_*_set_pte
74 .size arm9tdmi_processor_functions, . - arm9tdmi_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_arm9tdmi_name, #object
89cpu_arm9tdmi_name:
90 .asciz "ARM9TDMI"
91 .size cpu_arm9tdmi_name, . - cpu_arm9tdmi_name
92
93 .type cpu_p2001_name, #object
94cpu_p2001_name:
95 .asciz "P2001"
96 .size cpu_p2001_name, . - cpu_p2001_name
97
98 .align
99
100 .section ".proc.info.init", #alloc, #execinstr
101
102 .type __arm9tdmi_proc_info, #object
103__arm9tdmi_proc_info:
104 .long 0x41009900
105 .long 0xfff8ff00
106 .long 0
107 .long 0
108 b __arm9tdmi_setup
109 .long cpu_arch_name
110 .long cpu_elf_name
111 .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
112 .long cpu_arm9tdmi_name
113 .long arm9tdmi_processor_functions
114 .long 0
115 .long 0
116 .long v4_cache_fns
117 .size __arm9tdmi_proc_info, . - __arm9dmi_proc_info
118
119 .type __p2001_proc_info, #object
120__p2001_proc_info:
121 .long 0x41029000
122 .long 0xffffffff
123 .long 0
124 .long 0
125 b __arm9tdmi_setup
126 .long cpu_arch_name
127 .long cpu_elf_name
128 .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
129 .long cpu_p2001_name
130 .long arm9tdmi_processor_functions
131 .long 0
132 .long 0
133 .long v4_cache_fns
134 .size __p2001_proc_info, . - __p2001_proc_info
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-07 12:54:01 -0500