arch/arm/mm/proc-arm9tdmi.S

   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  */
  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     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  */
  46 ENTRY(cpu_arm9tdmi_reset)
  47                 mov     pc, r0
  48
  49                 __CPUINIT
  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
  63 ENTRY(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                 .word   0
  74                 .word   0
  75                 .word   0
  76                 .size   arm9tdmi_processor_functions, . - arm9tdmi_processor_functions
  77
  78                 .section ".rodata"
  79
  80                 .type   cpu_arch_name, #object
  81 cpu_arch_name:
  82                 .asciz  "armv4t"
  83                 .size   cpu_arch_name, . - cpu_arch_name
  84
  85                 .type   cpu_elf_name, #object
  86 cpu_elf_name:
  87                 .asciz  "v4"
  88                 .size   cpu_elf_name, . - cpu_elf_name
  89
  90                 .type   cpu_arm9tdmi_name, #object
  91 cpu_arm9tdmi_name:
  92                 .asciz  "ARM9TDMI"
  93                 .size   cpu_arm9tdmi_name, . - cpu_arm9tdmi_name
  94
  95                 .type   cpu_p2001_name, #object
  96 cpu_p2001_name:
  97                 .asciz  "P2001"
  98                 .size   cpu_p2001_name, . - cpu_p2001_name
  99
 100                 .align
 101
 102                 .section ".proc.info.init", #alloc, #execinstr
 103
 104                 .type   __arm9tdmi_proc_info, #object
 105 __arm9tdmi_proc_info:
 106                 .long   0x41009900
 107                 .long   0xfff8ff00
 108                 .long   0
 109                 .long   0
 110                 b       __arm9tdmi_setup
 111                 .long   cpu_arch_name
 112                 .long   cpu_elf_name
 113                 .long   HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
 114                 .long   cpu_arm9tdmi_name
 115                 .long   arm9tdmi_processor_functions
 116                 .long   0
 117                 .long   0
 118                 .long   v4_cache_fns
 119                 .size   __arm9tdmi_proc_info, . - __arm9tdmi_proc_info
 120
 121                 .type   __p2001_proc_info, #object
 122 __p2001_proc_info:
 123                 .long   0x41029000
 124                 .long   0xffffffff
 125                 .long   0
 126                 .long   0
 127                 b       __arm9tdmi_setup
 128                 .long   cpu_arch_name
 129                 .long   cpu_elf_name
 130                 .long   HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
 131                 .long   cpu_p2001_name
 132                 .long   arm9tdmi_processor_functions
 133                 .long   0
 134                 .long   0
 135                 .long   v4_cache_fns
 136                 .size   __p2001_proc_info, . - __p2001_proc_info