LXR linux/arch/arm/mm/proc-arm7tdmi.S

   1/*
   2 *  linux/arch/arm/mm/proc-arm7tdmi.S: utility functions for ARM7TDMI
   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_arm7tdmi_proc_init()
  25 * cpu_arm7tdmi_do_idle()
  26 * cpu_arm7tdmi_dcache_clean_area()
  27 * cpu_arm7tdmi_switch_mm()
  28 *
  29 * These are not required.
  30 */
  31ENTRY(cpu_arm7tdmi_proc_init)
  32ENTRY(cpu_arm7tdmi_do_idle)
  33ENTRY(cpu_arm7tdmi_dcache_clean_area)
  34ENTRY(cpu_arm7tdmi_switch_mm)
  35                ret     lr
  36
  37/*
  38 * cpu_arm7tdmi_proc_fin()
  39 */
  40ENTRY(cpu_arm7tdmi_proc_fin)
  41                ret     lr
  42
  43/*
  44 * Function: cpu_arm7tdmi_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_arm7tdmi_reset)
  50                ret     r0
  51ENDPROC(cpu_arm7tdmi_reset)
  52                .popsection
  53
  54                .type   __arm7tdmi_setup, #function
  55__arm7tdmi_setup:
  56                ret     lr
  57                .size   __arm7tdmi_setup, . - __arm7tdmi_setup
  58
  59                __INITDATA
  60
  61                @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
  62                define_processor_functions arm7tdmi, dabort=v4t_late_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_arm7tdmi_name, "ARM7TDMI"
  69                string  cpu_triscenda7_name, "Triscend-A7x"
  70                string  cpu_at91_name, "Atmel-AT91M40xxx"
  71                string  cpu_s3c3410_name, "Samsung-S3C3410"
  72                string  cpu_s3c44b0x_name, "Samsung-S3C44B0x"
  73                string  cpu_s3c4510b_name, "Samsung-S3C4510B"
  74                string  cpu_s3c4530_name, "Samsung-S3C4530"
  75                string  cpu_netarm_name, "NETARM"
  76
  77                .align
  78
  79                .section ".proc.info.init", #alloc
  80
  81.macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \
  82        extra_hwcaps=0
  83                .type   __\name\()_proc_info, #object
  84__\name\()_proc_info:
  85                .long   \cpu_val
  86                .long   \cpu_mask
  87                .long   0
  88                .long   0
  89                initfn  __arm7tdmi_setup, __\name\()_proc_info
  90                .long   cpu_arch_name
  91                .long   cpu_elf_name
  92                .long   HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps )
  93                .long   \cpu_name
  94                .long   arm7tdmi_processor_functions
  95                .long   0
  96                .long   0
  97                .long   v4_cache_fns
  98                .size   __\name\()_proc_info, . - __\name\()_proc_info
  99.endm
 100
 101                arm7tdmi_proc_info arm7tdmi, 0x41007700, 0xfff8ff00, \
 102                        cpu_arm7tdmi_name
 103                arm7tdmi_proc_info triscenda7, 0x0001d2ff, 0x0001ffff, \
 104                        cpu_triscenda7_name, extra_hwcaps=HWCAP_THUMB
 105                arm7tdmi_proc_info at91, 0x14000040, 0xfff000e0, \
 106                        cpu_at91_name, extra_hwcaps=HWCAP_THUMB
 107                arm7tdmi_proc_info s3c4510b, 0x36365000, 0xfffff000, \
 108                        cpu_s3c4510b_name, extra_hwcaps=HWCAP_THUMB
 109                arm7tdmi_proc_info s3c4530, 0x4c000000, 0xfff000e0, \
 110                        cpu_s3c4530_name, extra_hwcaps=HWCAP_THUMB
 111                arm7tdmi_proc_info s3c3410, 0x34100000, 0xffff0000, \
 112                        cpu_s3c3410_name, extra_hwcaps=HWCAP_THUMB
 113                arm7tdmi_proc_info s3c44b0x, 0x44b00000, 0xffff0000, \
 114                        cpu_s3c44b0x_name, extra_hwcaps=HWCAP_THUMB
 115