LXR linux/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#include "proc-macros.S"
  21
  22        .text
  23/*
  24 * cpu_arm9tdmi_proc_init()
  25 * cpu_arm9tdmi_do_idle()
  26 * cpu_arm9tdmi_dcache_clean_area()
  27 * cpu_arm9tdmi_switch_mm()
  28 *
  29 * These are not required.
  30 */
  31ENTRY(cpu_arm9tdmi_proc_init)
  32ENTRY(cpu_arm9tdmi_do_idle)
  33ENTRY(cpu_arm9tdmi_dcache_clean_area)
  34ENTRY(cpu_arm9tdmi_switch_mm)
  35                ret     lr
  36
  37/*
  38 * cpu_arm9tdmi_proc_fin()
  39 */
  40ENTRY(cpu_arm9tdmi_proc_fin)
  41                ret     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                .pushsection    .idmap.text, "ax"
  49ENTRY(cpu_arm9tdmi_reset)
  50                ret     r0
  51ENDPROC(cpu_arm9tdmi_reset)
  52                .popsection
  53
  54                .type   __arm9tdmi_setup, #function
  55__arm9tdmi_setup:
  56                ret     lr
  57                .size   __arm9tdmi_setup, . - __arm9tdmi_setup
  58
  59                __INITDATA
  60
  61                @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
  62                define_processor_functions arm9tdmi, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1
  63
  64                .section ".rodata"
  65
  66                string  cpu_arch_name, "armv4t"
  67                string  cpu_elf_name, "v4"
  68                string  cpu_arm9tdmi_name, "ARM9TDMI"
  69                string  cpu_p2001_name, "P2001"
  70
  71                .align
  72
  73                .section ".proc.info.init", #alloc
  74
  75.macro arm9tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req
  76                .type   __\name\()_proc_info, #object
  77__\name\()_proc_info:
  78                .long   \cpu_val
  79                .long   \cpu_mask
  80                .long   0
  81                .long   0
  82                initfn  __arm9tdmi_setup, __\name\()_proc_info
  83                .long   cpu_arch_name
  84                .long   cpu_elf_name
  85                .long   HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
  86                .long   \cpu_name
  87                .long   arm9tdmi_processor_functions
  88                .long   0
  89                .long   0
  90                .long   v4_cache_fns
  91                .size   __\name\()_proc_info, . - __\name\()_proc_info
  92.endm
  93
  94        arm9tdmi_proc_info arm9tdmi, 0x41009900, 0xfff8ff00, cpu_arm9tdmi_name
  95        arm9tdmi_proc_info p2001, 0x41029000, 0xffffffff, cpu_p2001_name
  96