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 .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 pc, lr 40 41/* 42 * Function: cpu_arm9tdmi_reset(loc) 43 * Params : loc(r0) address to jump to 44 * Purpose : Sets up everything for a reset and jump to the location for soft reset. 45 */ 46ENTRY(cpu_arm9tdmi_reset) 47 mov pc, r0 48 49 __INIT 50 51 .type __arm9tdmi_setup, #function 52__arm9tdmi_setup: 53 mov pc, lr 54 .size __arm9tdmi_setup, . - __arm9tdmi_setup 55 56 __INITDATA 57 58/* 59 * Purpose : Function pointers used to access above functions - all calls 60 * come through these 61 */ 62 .type arm9tdmi_processor_functions, #object 63ENTRY(arm9tdmi_processor_functions) 64 .word nommu_early_abort 65 .word legacy_pabort 66 .word cpu_arm9tdmi_proc_init 67 .word cpu_arm9tdmi_proc_fin 68 .word cpu_arm9tdmi_reset 69 .word cpu_arm9tdmi_do_idle 70 .word cpu_arm9tdmi_dcache_clean_area 71 .word cpu_arm9tdmi_switch_mm 72 .word 0 @ cpu_*_set_pte 73 .size arm9tdmi_processor_functions, . - arm9tdmi_processor_functions 74 75 .section ".rodata" 76 77 .type cpu_arch_name, #object 78cpu_arch_name: 79 .asciz "armv4t" 80 .size cpu_arch_name, . - cpu_arch_name 81 82 .type cpu_elf_name, #object 83cpu_elf_name: 84 .asciz "v4" 85 .size cpu_elf_name, . - cpu_elf_name 86 87 .type cpu_arm9tdmi_name, #object 88cpu_arm9tdmi_name: 89 .asciz "ARM9TDMI" 90 .size cpu_arm9tdmi_name, . - cpu_arm9tdmi_name 91 92 .type cpu_p2001_name, #object 93cpu_p2001_name: 94 .asciz "P2001" 95 .size cpu_p2001_name, . - cpu_p2001_name 96 97 .align 98 99 .section ".proc.info.init", #alloc, #execinstr 100 101 .type __arm9tdmi_proc_info, #object 102__arm9tdmi_proc_info: 103 .long 0x41009900 104 .long 0xfff8ff00 105 .long 0 106 .long 0 107 b __arm9tdmi_setup 108 .long cpu_arch_name 109 .long cpu_elf_name 110 .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT 111 .long cpu_arm9tdmi_name 112 .long arm9tdmi_processor_functions 113 .long 0 114 .long 0 115 .long v4_cache_fns 116 .size __arm9tdmi_proc_info, . - __arm9dmi_proc_info 117 118 .type __p2001_proc_info, #object 119__p2001_proc_info: 120 .long 0x41029000 121 .long 0xffffffff 122 .long 0 123 .long 0 124 b __arm9tdmi_setup 125 .long cpu_arch_name 126 .long cpu_elf_name 127 .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT 128 .long cpu_p2001_name 129 .long arm9tdmi_processor_functions 130 .long 0 131 .long 0 132 .long v4_cache_fns 133 .size __p2001_proc_info, . - __p2001_proc_info 134