annotate packages/hal/mn10300/arch/current/include/hal_cache.h @ 3403:8c8767bb9a62 default tip

devs/nand/micron_mt29: Remove defunct references (in comments) to mt29f2g08_oob_ecc.
author Ross Younger <wry@ecoscentric.com>
date Sun, 18 Jan 2015 17:59:01 +1300
parents 74dbf4c3f2e1
children
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1 #ifndef CYGONCE_HAL_CACHE_H
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2 #define CYGONCE_HAL_CACHE_H
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3
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4 //=============================================================================
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5 //
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6 // hal_cache.h
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7 //
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8 // HAL cache control API
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9 //
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10 //=============================================================================
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11 // ####ECOSGPLCOPYRIGHTBEGIN####
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12 // -------------------------------------------
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13 // This file is part of eCos, the Embedded Configurable Operating System.
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14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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15 //
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16 // eCos is free software; you can redistribute it and/or modify it under
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17 // the terms of the GNU General Public License as published by the Free
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18 // Software Foundation; either version 2 or (at your option) any later
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19 // version.
208
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20 //
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21 // eCos is distributed in the hope that it will be useful, but WITHOUT
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22 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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23 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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24 // for more details.
208
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25 //
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26 // You should have received a copy of the GNU General Public License
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27 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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28 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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29 //
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30 // As a special exception, if other files instantiate templates or use
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31 // macros or inline functions from this file, or you compile this file
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32 // and link it with other works to produce a work based on this file,
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33 // this file does not by itself cause the resulting work to be covered by
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34 // the GNU General Public License. However the source code for this file
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35 // must still be made available in accordance with section (3) of the GNU
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36 // General Public License v2.
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37 //
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38 // This exception does not invalidate any other reasons why a work based
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39 // on this file might be covered by the GNU General Public License.
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40 // -------------------------------------------
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41 // ####ECOSGPLCOPYRIGHTEND####
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42 //=============================================================================
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43 //#####DESCRIPTIONBEGIN####
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44 //
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45 // Author(s): nickg
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46 // Contributors: nickg
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47 // Date: 1998-02-17
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48 // Purpose: Cache control API
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49 // Description: The macros defined here provide the HAL APIs for handling
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50 // cache control operations.
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51 // Usage:
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52 // #include <cyg/hal/hal_cache.h>
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53 // ...
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54 //
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55 //
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56 //####DESCRIPTIONEND####
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57 //
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58 //=============================================================================
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59
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60 #include <pkgconf/hal.h>
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61 #include <cyg/infra/cyg_type.h>
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62
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63 #if !defined(CYG_HAL_MN10300_AM31_SIM)
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64
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65 #include <cyg/hal/var_cache.h>
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66
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67 #else
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68
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69 //=============================================================================
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70 // MN10300 Simulator
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71
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72 //-----------------------------------------------------------------------------
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73 // Cache dimensions
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74
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75 // Data cache
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76 #define HAL_DCACHE_SIZE 4096 // Size of data cache in bytes
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77 #define HAL_DCACHE_LINE_SIZE 16 // Size of a data cache line
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78 #define HAL_DCACHE_WAYS 2 // Associativity of the cache
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79
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80 // Instruction cache
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81 #define HAL_ICACHE_SIZE 4096 // Size of cache in bytes
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82 #define HAL_ICACHE_LINE_SIZE 16 // Size of a cache line
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83 #define HAL_ICACHE_WAYS 2 // Associativity of the cache
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84
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85 #define HAL_DCACHE_SETS (HAL_DCACHE_SIZE/(HAL_DCACHE_LINE_SIZE*HAL_DCACHE_WAYS))
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86 #define HAL_ICACHE_SETS (HAL_ICACHE_SIZE/(HAL_ICACHE_LINE_SIZE*HAL_ICACHE_WAYS))
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87
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88 //-----------------------------------------------------------------------------
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89 // Global control of data cache
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90
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91 // Enable the data cache
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92 #define HAL_DCACHE_ENABLE()
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93
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94 // Disable the data cache
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95 #define HAL_DCACHE_DISABLE()
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96
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97 // Invalidate the entire cache
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98 #define HAL_DCACHE_INVALIDATE_ALL()
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99
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100 // Synchronize the contents of the cache with memory.
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101 #define HAL_DCACHE_SYNC()
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102
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103 // Set the data cache refill burst size
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104 //#define HAL_DCACHE_BURST_SIZE(_size_)
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105
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106 // Set the data cache write mode
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107 //#define HAL_DCACHE_WRITE_MODE( _mode_ )
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108
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109 // Load the contents of the given address range into the data cache
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110 // and then lock the cache so that it stays there.
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111 //#define HAL_DCACHE_LOCK(_base_, _size_)
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112
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113 // Undo a previous lock operation
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114 //#define HAL_DCACHE_UNLOCK(_base_, _size_)
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115
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116 // Unlock entire cache
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117 //#define HAL_DCACHE_UNLOCK_ALL()
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118
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119 //-----------------------------------------------------------------------------
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120 // Data cache line control
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121
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122 // Allocate cache lines for the given address range without reading its
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123 // contents from memory.
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124 //#define HAL_DCACHE_ALLOCATE( _base_ , _size_ )
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125
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126 // Write dirty cache lines to memory and invalidate the cache entries
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127 // for the given address range.
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128 //#define HAL_DCACHE_FLUSH( _base_ , _size_ )
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129
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130 // Invalidate cache lines in the given range without writing to memory.
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131 //#define HAL_DCACHE_INVALIDATE( _base_ , _size_ )
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132
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133 // Write dirty cache lines to memory for the given address range.
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134 //#define HAL_DCACHE_STORE( _base_ , _size_ )
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135
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136 // Preread the given range into the cache with the intention of reading
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137 // from it later.
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138 //#define HAL_DCACHE_READ_HINT( _base_ , _size_ )
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139
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140 // Preread the given range into the cache with the intention of writing
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141 // to it later.
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142 //#define HAL_DCACHE_WRITE_HINT( _base_ , _size_ )
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143
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144 // Allocate and zero the cache lines associated with the given range.
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145 //#define HAL_DCACHE_ZERO( _base_ , _size_ )
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146
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147 //-----------------------------------------------------------------------------
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148 // Global control of Instruction cache
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149
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150 // Enable the instruction cache
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151 #define HAL_ICACHE_ENABLE()
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152
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153 // Disable the instruction cache
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154 #define HAL_ICACHE_DISABLE()
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155
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156 // Invalidate the entire cache
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157 #define HAL_ICACHE_INVALIDATE_ALL()
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158
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159 // Synchronize the contents of the cache with memory.
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160 #define HAL_ICACHE_SYNC()
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161
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162 // Set the instruction cache refill burst size
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163 //#define HAL_ICACHE_BURST_SIZE(_size_)
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164
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165 // Load the contents of the given address range into the instruction cache
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166 // and then lock the cache so that it stays there.
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167 //#define HAL_ICACHE_LOCK(_base_, _size_)
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168
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169 // Undo a previous lock operation
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170 //#define HAL_ICACHE_UNLOCK(_base_, _size_)
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171
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172 // Unlock entire cache
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173 //#define HAL_ICACHE_UNLOCK_ALL()
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174
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175 //-----------------------------------------------------------------------------
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176 // Instruction cache line control
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177
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178 // Invalidate cache lines in the given range without writing to memory.
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179 //#define HAL_ICACHE_INVALIDATE( _base_ , _size_ )
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180
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181 #endif
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182
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183
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184 //-----------------------------------------------------------------------------
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185 // Check that a supported configuration has actually defined some macros.
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186
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187 #ifndef HAL_DCACHE_ENABLE
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188
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189 #error Unsupported MN10300 configuration
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190
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191 #endif
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192
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193 //-----------------------------------------------------------------------------
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194 #endif // ifndef CYGONCE_HAL_CACHE_H
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195 // End of hal_cache.h