diff options
Diffstat (limited to 'arch/arm/mm/proc-arm9tdmi.S')
| -rw-r--r-- | arch/arm/mm/proc-arm9tdmi.S | 134 |
1 files changed, 134 insertions, 0 deletions
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 | */ | ||
| 29 | ENTRY(cpu_arm9tdmi_proc_init) | ||
| 30 | ENTRY(cpu_arm9tdmi_do_idle) | ||
| 31 | ENTRY(cpu_arm9tdmi_dcache_clean_area) | ||
| 32 | ENTRY(cpu_arm9tdmi_switch_mm) | ||
| 33 | mov pc, lr | ||
| 34 | |||
| 35 | /* | ||
| 36 | * cpu_arm9tdmi_proc_fin() | ||
| 37 | */ | ||
| 38 | ENTRY(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 | */ | ||
| 48 | ENTRY(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 | ||
| 65 | ENTRY(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 | ||
| 79 | cpu_arch_name: | ||
| 80 | .asciz "armv4t" | ||
| 81 | .size cpu_arch_name, . - cpu_arch_name | ||
| 82 | |||
| 83 | .type cpu_elf_name, #object | ||
| 84 | cpu_elf_name: | ||
| 85 | .asciz "v4" | ||
| 86 | .size cpu_elf_name, . - cpu_elf_name | ||
| 87 | |||
| 88 | .type cpu_arm9tdmi_name, #object | ||
| 89 | cpu_arm9tdmi_name: | ||
| 90 | .asciz "ARM9TDMI" | ||
| 91 | .size cpu_arm9tdmi_name, . - cpu_arm9tdmi_name | ||
| 92 | |||
| 93 | .type cpu_p2001_name, #object | ||
| 94 | cpu_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 | ||