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annotate packages/io/flash/current/cdl/io_flash.cdl @ 3292:7f8e529b4d82 default tip

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Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.
author vae
date Wed, 29 Apr 2015 23:31:48 +0000
parents f5ae5af1e5f8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # ====================================================================
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2 #
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3 # io_flash.cdl
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4 #
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5 # eCos IO configuration data
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6 #
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7 # ====================================================================
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8 ## ####ECOSGPLCOPYRIGHTBEGIN####
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9 ## -------------------------------------------
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10 ## This file is part of eCos, the Embedded Configurable Operating System.
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11 ## Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2009, 2010 Free Software Foundation, Inc.
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12 ##
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13 ## eCos is free software; you can redistribute it and/or modify it under
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14 ## the terms of the GNU General Public License as published by the Free
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15 ## Software Foundation; either version 2 or (at your option) any later
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16 ## version.
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17 ##
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18 ## eCos is distributed in the hope that it will be useful, but WITHOUT
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19 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 ## for more details.
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22 ##
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23 ## You should have received a copy of the GNU General Public License
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24 ## along with eCos; if not, write to the Free Software Foundation, Inc.,
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25 ## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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26 ##
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27 ## As a special exception, if other files instantiate templates or use
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28 ## macros or inline functions from this file, or you compile this file
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29 ## and link it with other works to produce a work based on this file,
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30 ## this file does not by itself cause the resulting work to be covered by
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31 ## the GNU General Public License. However the source code for this file
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32 ## must still be made available in accordance with section (3) of the GNU
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33 ## General Public License v2.
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34 ##
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35 ## This exception does not invalidate any other reasons why a work based
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36 ## on this file might be covered by the GNU General Public License.
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37 ## -------------------------------------------
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38 ## ####ECOSGPLCOPYRIGHTEND####
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39 # ====================================================================
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40 ######DESCRIPTIONBEGIN####
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41 #
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42 # Author(s): gthomas
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43 # Original data: gthomas
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44 # Contributors: woehler, bartv
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45 # Date: 2000-07-06
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46 #
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47 #####DESCRIPTIONEND####
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48 #
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49 # ====================================================================
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50
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51 cdl_package CYGPKG_IO_FLASH {
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52 display "FLASH device drivers"
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53 include_dir cyg/io
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54 doc ref/io-flash.html
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55 description "
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56 This package provides support for the flash devices on the
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57 current platform."
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58 requires CYGPKG_ISOINFRA
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59 requires CYGINT_ISO_STRING_STRFUNCS
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60
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61 compile flash.c
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62
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63 cdl_interface CYGHWR_IO_FLASH_DEVICE {
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64 display "Hardware FLASH device drivers"
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65 requires { CYGHWR_IO_FLASH_DEVICE >= 1 }
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66 description "
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67 This calculated option gives the number of flash devices
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68 on the current platform. The generic flash support requires
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69 at least one device."
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70 }
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71
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72 cdl_interface CYGHWR_IO_FLASH_BLOCK_LOCKING {
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73 display "Hardware can support block locking"
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74 flavor booldata
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75 description "
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76 This option will be enabled by devices which can support
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77 locking (write-protection) of individual flash blocks. If
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78 none of the devices support locking then the relevant code
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79 in the generic flash package can be eliminated."
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80 }
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81
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82 cdl_interface CYGHWR_IO_FLASH_INDIRECT_READS {
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83 display "Hardware requires indirect reads"
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84 flavor booldata
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85 description "
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86 Some flash devices can be read directly like any other
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87 memory. Others can only be accessed indirectly, which
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88 involves extra code. If none of the flash devices on the
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89 target hardware use indirect reads then the extra code
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90 can be eliminated."
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91 }
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92
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93 cdl_interface CYGHWR_IO_FLASH_DEVICE_NEEDS_CACHE_HANDLED {
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94 display "Device driver needs cache handled centrally"
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95 flavor booldata
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96 description "
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97 Managing flash often requires interacting with the cache.
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98 Some device drivers do not require the generic flash code to
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99 manipulate the cache, either because they do it themselves or
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100 because the hardware does the right thing. Other drivers
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101 require the generic code to disable/enable the cache before
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102 calling into the driver."
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103 }
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104
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105 cdl_interface CYGHWR_IO_FLASH_DEVICE_LEGACY {
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106 display "Hardware driver uses the legacy interface"
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107 flavor booldata
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108 compile -library=libextras.a legacy_dev.c
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109 description "
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110 The generic flash code can work with either a legacy device
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111 driver or with V2 drivers. If a legacy driver is used on the
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112 current platform then this option will be implemented."
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113 requires { CYGHWR_IO_FLASH_DEVICE_LEGACY <= 1 }
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114
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115 # For now assume all legacy devices need the cache handled by
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116 # the central code
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117 implements CYGHWR_IO_FLASH_DEVICE_NEEDS_CACHE_HANDLED
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118 }
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119
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120 cdl_option CYGSEM_IO_FLASH_READ_INDIRECT {
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121 display "Legacy device driver uses indirect reads."
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122 active_if CYGHWR_IO_FLASH_DEVICE_LEGACY
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123 flavor bool
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124 default_value 0
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125 requires { !CYGSEM_IO_FLASH_VERIFY_PROGRAM }
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126 description "
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127 This option will be asserted by devices which cannot support
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128 direct access to the FLASH memory contents (e.g. EEPROM or NAND
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129 devices). In these cases, the driver must provide an appropriate
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130 hardware access function."
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131 }
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132
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133 cdl_option CYGSEM_IO_FLASH_CHATTER {
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134 display "Display status messages during flash operations"
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135 flavor bool
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136 default_value 1
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137 description "
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138 Selecting this option will cause the flash code to print status
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139 messages as various flash operations are undertaken."
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140 }
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141
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142 cdl_option CYGSEM_IO_FLASH_VERIFY_PROGRAM {
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143 display "Verify data programmed to flash"
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144 flavor bool
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145 default_value 1
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146 active_if { CYGHWR_IO_FLASH_INDIRECT_READS < CYGHWR_IO_FLASH_DEVICE }
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147 description "
157
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148 Selecting this option will cause verification of data
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149 programmed to flash."
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150 }
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151
174
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152 cdl_option CYGSEM_IO_FLASH_SOFT_WRITE_PROTECT {
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153 display "Platform has flash soft DIP switch write-protect"
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154 flavor bool
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155 default_value 0
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156 description "
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157 Selecting this option will cause the state of a hardware jumper or
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158 dipswitch to be read by software to determine whether the flash is
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159 write-protected or not."
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160 }
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161
208
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162 cdl_component CYGPKG_IO_FLASH_BLOCK_DEVICE {
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163 display "Provide /dev block devices"
208
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164 flavor bool
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165 active_if CYGPKG_IO
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166 default_value 0
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167 compile -library=libextras.a flashiodev.c
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168 requires { CYGINT_IO_FLASH_BLOCK_DEVICE_METHODS > 0}
208
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169 description "
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170 Provide one or more block devices below /dev which can be
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171 accessed using standard I/O functions such as eCos cyg_io_read()
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172 and POSIX open()."
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173
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174 cdl_interface CYGINT_IO_FLASH_BLOCK_DEVICE_METHODS {
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175 display "Number of methods to reference Flash"
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176 flavor bool
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177 no_define
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178 description "This interface counts the number of ways Flash can
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179 be referenced in order to be opened. This is so that
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180 the configuration can ensure that at least one method
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181 is available."
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182 }
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183
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184 cdl_option CYGNUM_IO_FLASH_BLOCK_DEVICES {
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185 display "Number of /dev/flash/ device slots"
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186 flavor data
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187 default_value 2
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188 description "The number of simultaneously open flash devices
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189 permitted. This is statically configured, rather than
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190 dynamically allocated at run-time as it is likely the
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191 number required will be small."
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192 }
208
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193
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194 cdl_option CYGFUN_IO_FLASH_BLOCK_FROM_FIS {
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195 display "Access using named FIS areas"
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196 requires CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
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197 default_value CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
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198 implements CYGINT_IO_FLASH_BLOCK_DEVICE_METHODS
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199 description "This method of access to Flash regions uses the names
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200 of FIS regions to identify the Flash device, or portion
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201 of the device. For example /dev/flash/fis/jffs2."
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202 }
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203 cdl_option CYGFUN_IO_FLASH_BLOCK_FROM_DEVOFFSET {
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204 display "Access using device numbers,offsets"
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205 default_value 1
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206 implements CYGINT_IO_FLASH_BLOCK_DEVICE_METHODS
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207 description "This method of access to Flash regions uses the Flash
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208 device number, along with an offset (which may be
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209 0 to indicate the start of the device) and an optional length
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210 which will otherwise be assumed to be the whole device.
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211 For example /dev/flash/0/0x1000 or
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212 /dev/flash/1/0,65536."
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213 }
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214 }
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215
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216 cdl_option CYGSEM_IO_FLASH_LEGACY_API {
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217 display "Provide the legacy user API"
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218 flavor bool
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219 default_value 1
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220 compile legacy_api.c
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221 description "
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222 Provide an implementation of the legacy user API. This is mapped
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223 onto the new API via a small layer of code"
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224 }
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225
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226 cdl_component CYGPKG_IO_FLASH_BLOCK_DEVICE_LEGACY {
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227 display "Provide /dev block devices (legacy format)"
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228 flavor bool
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229 active_if CYGPKG_IO
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230 default_value 0
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231 compile -library=libextras.a flashiodevlegacy.c
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232 description "
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233 Provide one or more block devices below /dev which can be
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234 accessed using standard I/O functions such as eCos cyg_io_read()
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235 and POSIX open(). This format of configuration is deprecated,
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236 but is included for compatibility with older configurations."
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237
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238 for { set ::dev 1 } { $::dev <= 2 } { incr ::dev } {
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239
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240 cdl_component CYGPKG_IO_FLASH_BLOCK_DEVICE_$::dev {
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241 display "Provide block device $::dev"
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242 if { 1 == $::dev } {
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243 default_value 1
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244 } else {
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245 default_value 0
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246 }
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247 description "Provide block device $::dev for use with standard I/O"
208
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248
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249 cdl_option CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_$::dev {
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250 display "Name of flash block device $::dev"
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251 flavor data
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252 default_value "\"\\\"/dev/flash$::dev\\\"\""
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253 description "
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254 This option determines the name by which the block
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255 device can be accessed."
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256 }
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257
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258 cdl_interface CYGINT_IO_FLASH_BLOCK_CFG_$::dev {
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259 requires 1 == CYGINT_IO_FLASH_BLOCK_CFG_$::dev
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260 no_define
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261 }
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262
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263 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_$::dev {
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264 display "Static configuration via offset"
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265 default_value 1
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266 implements CYGINT_IO_FLASH_BLOCK_CFG_$::dev
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267 description "
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268 This configures the flash block device $::dev
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269 with static offset from the base of the first
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270 flash device and length"
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271
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272 cdl_option CYGNUM_IO_FLASH_BLOCK_OFFSET_$::dev {
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273 display "Start offset from flash base"
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274 flavor data
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275 default_value 0xFFFFFFFF
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276 requires 0xFFFFFFFF != CYGNUM_IO_FLASH_BLOCK_OFFSET_$::dev
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277 description "
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278 This gives the offset from the base of flash
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279 of the first flash device which this block device
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280 corresponds to."
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281 }
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282 cdl_option CYGNUM_IO_FLASH_BLOCK_LENGTH_$::dev {
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283 display "Length"
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284 flavor data
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285 default_value 0
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286 requires 0 != CYGNUM_IO_FLASH_BLOCK_LENGTH_$::dev
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287 description "
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288 This gives the length of the region of flash given over
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289 to this block device."
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290 }
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291 }
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292
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293 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_ABSOLUTE_$::dev {
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294 display "Static configuration via absolute address"
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295 default_value 0
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296 implements CYGINT_IO_FLASH_BLOCK_CFG_$::dev
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297 description "
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298 This configures the flash block device $::dev
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299 with absolute base address and a length"
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300
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301 cdl_option CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_START_$::dev {
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302 display "Start absolute address"
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303 flavor data
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304 default_value 0xFFFFFFFF
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305 requires 0xFFFFFFFF != CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_START_$::dev
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306 description "
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307 This gives the absolute address in flash which this
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308 block device corresponds to."
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309 }
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310 cdl_option CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_LENGTH_$::dev {
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311 display "Length"
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312 flavor data
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313 default_value 0
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314 requires 0 != CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_LENGTH_$::dev
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315 description "
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316 This gives the length of the region of flash given over
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317 to this block device."
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318 }
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319 }
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320
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321 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_FIS_$::dev {
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322 display "Configuration from FIS"
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323 default_value 0
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324 implements CYGINT_IO_FLASH_BLOCK_CFG_$::dev
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325 description "
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326 This configures the flash block device $::dev
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327 from Redboot FIS"
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328
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329 cdl_component CYGDAT_IO_FLASH_BLOCK_FIS_NAME_$::dev {
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330 display "Name of FIS entry"
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331 flavor data
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332 requires "\"\"" != CYGDAT_IO_FLASH_BLOCK_FIS_NAME_$::dev
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333 if { 1 == $::dev } {
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334 default_value { "\"jffs2\"" }
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335 } elseif { 2 == $::dev } {
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336 default_value { "\"jffs2-2\"" }
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337 } else {
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338 default_value { "\"\"" }
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339 }
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340 }
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341 }
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342 }
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343 }
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344 }
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345
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346 cdl_component CYGPKG_IO_FLASH_OPTIONS {
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347 display "Flash device driver build options"
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348 flavor none
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349 description "
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350 Package specific build options including control over
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351 compiler flags used only in building this package,
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352 and details of which tests are built."
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353
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354
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355 cdl_option CYGPKG_IO_FLASH_CFLAGS_ADD {
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356 display "Additional compiler flags"
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357 flavor data
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358 no_define
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359 default_value { "" }
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360 description "
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361 This option modifies the set of compiler flags for
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362 building the flash device drivers. These flags are used in addition
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363 to the set of global flags."
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364 }
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365
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366 cdl_option CYGPKG_IO_FLASH_CFLAGS_REMOVE {
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367 display "Suppressed compiler flags"
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368 flavor data
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369 no_define
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370 default_value { "" }
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371 description "
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372 This option modifies the set of compiler flags for
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373 building the flash device drivers. These flags are removed from
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374 the set of global flags if present."
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375 }
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376
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377 cdl_component CYGPKG_IO_FLASH_TESTS {
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378 display "Flash device driver tests"
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379 flavor data
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380 no_define
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381 # requires { CYGINT_IO_FLASH_TESTS_ADDR_METHOD == 1 }
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382 calculated { (CYGSEM_IO_FLASH_LEGACY_API ? "tests/flash1" : "") .
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383 (CYGPKG_IO_FLASH_BLOCK_DEVICE ? " tests/flashdev" : "") }
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384 description "
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385 This option specifies the set of tests for the flash device drivers."
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386
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387 # cdl_interface CYGINT_IO_FLASH_TESTS_ADDR_METHOD {
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388 # display "Set single Flash access method"
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389 # }
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390 #
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391 #
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392 # cdl_option CYGTST_IO_FLASH_TESTS_ADDR_FIS {
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393 # display "Use \"flashtest\" FIS entry"
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394 # default_value CYGFUN_IO_FLASH_BLOCK_FROM_FIS
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395 # implements CYGINT_IO_FLASH_TESTS_ADDR_METHOD
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396 # requires CYGFUN_IO_FLASH_BLOCK_FROM_FIS
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397 # requires !CYGTST_IO_FLASH_TESTS_ADDR_HARDCODE
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398 # description "
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399 # This option means that tests will use the Flash region
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400 # identified by the \"flashtest\" FIS entry if it is found."
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401 # }
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402 #
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403 # cdl_component CYGTST_IO_FLASH_TESTS_ADDR_HARDCODE {
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404 # display "Use hardcoded offset from Flash base"
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405 # default_value !CYGTST_IO_FLASH_TESTS_ADDR_FIS
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406 # implements CYGINT_IO_FLASH_TESTS_ADDR_METHOD
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407 # requires !CYGTST_IO_FLASH_TESTS_ADDR_FIS
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408 # description "
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409 # This option means that tests will use the flash region
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410 # identified by the \"flashtest\" FIS entry if it is found."
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411 #
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412 cdl_option CYGNUM_IO_FLASH_TEST_OFFSET {
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413 display "Start offset from flash base"
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414 flavor data
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415 default_value 0x100000
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416 description "
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417 This gives the offset from the base of flash where tests
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418 can be run. It is important to set this correctly, as an
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419 incorrect value could allow the tests to write over critical
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420 portions of the FLASH device and possibly render the target
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421 board totally non-functional."
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422 }
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423 cdl_option CYGNUM_IO_FLASH_TEST_LENGTH {
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424 display "Length"
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425 flavor data
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426 default_value 0x100000
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427 description "
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428 This gives the length of the region of flash used for testing."
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429 }
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430 # }
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431 }
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432 }
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433 }
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434
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435 # EOF io_flash.cdl