Mercurial > flash_v2

annotate packages/io/flash/current/cdl/io_flash.cdl @ 1674:2a83c3d9c985

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Added documentation of the FLASH API.
author asl
date Sun, 20 Jun 2004 12:20:53 +0000
parents 86d40b65e079
children 3845779eca10
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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 Red Hat, Inc.
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12 ## Copyright (C) 2003 Gary Thomas
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13 ##
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14 ## eCos is free software; you can redistribute it and/or modify it under
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15 ## the terms of the GNU General Public License as published by the Free
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16 ## Software Foundation; either version 2 or (at your option) any later version.
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17 ##
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18 ## eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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19 ## 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 along
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24 ## with eCos; if not, write to the Free Software Foundation, Inc.,
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25 ## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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26 ##
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27 ## As a special exception, if other files instantiate templates or use macros
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28 ## or inline functions from this file, or you compile this file and link it
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29 ## with other works to produce a work based on this file, this file does not
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30 ## by itself cause the resulting work to be covered by the GNU General Public
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31 ## License. However the source code for this file must still be made available
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32 ## in accordance with section (3) of the GNU General Public License.
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33 ##
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34 ## This exception does not invalidate any other reasons why a work based on
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35 ## this file might be covered by the GNU General Public License.
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36 ##
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37 ## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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38 ## at http://sources.redhat.com/ecos/ecos-license/
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39 ## -------------------------------------------
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40 #####ECOSGPLCOPYRIGHTEND####
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41 # ====================================================================
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42 ######DESCRIPTIONBEGIN####
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43 #
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44 # Author(s): gthomas
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45 # Original data: gthomas
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46 # Contributors: woehler
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47 # Date: 2000-07-06
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48 #
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49 #####DESCRIPTIONEND####
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50 #
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51 # ====================================================================
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52
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53 cdl_package CYGPKG_IO_FLASH {
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54 display "FLASH device drivers"
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55 include_dir cyg/io
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56 doc ref/flash.html
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57 description "
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58 This option enables drivers for basic I/O services on
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59 flash devices."
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60 requires CYGPKG_ISOINFRA
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61 requires CYGINT_ISO_STRING_STRFUNCS
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62
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63 compile flash.c
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64
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65 define_proc {
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66 puts $::cdl_header "#include <pkgconf/system.h>"
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67 puts $::cdl_header "#ifdef CYGDAT_IO_FLASH_DEVICE_HEADER"
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68 puts $::cdl_header "# include CYGDAT_IO_FLASH_DEVICE_HEADER"
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69 puts $::cdl_header "#endif "
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70 }
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72 cdl_interface CYGHWR_IO_FLASH_DEVICE {
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73 display "Hardware FLASH device drivers"
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74 description "
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75 This option enables the hardware device drivers
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76 for the current platform."
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77 }
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78
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79 cdl_interface CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM {
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80 display "Hardware FLASH device drivers are not in RAM"
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81 flavor booldata
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82 description "
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83 Use of this interface is deprecated.
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84 Drivers should make sure that the functions are
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85 linked to RAM by putting them in .2ram sections."
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86 requires !CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM
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87 }
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88
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89 cdl_interface CYGHWR_IO_FLASH_BLOCK_LOCKING {
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90 display "Hardware can support block locking"
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91 flavor booldata
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92 description "
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93 This option will be enabled by devices which can support
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94 locking (write-protection) of individual blocks."
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95 }
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96
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97 cdl_option CYGSEM_IO_FLASH_READ_INDIRECT {
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98 display "Hardware cannot support direct access to FLASH memory"
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99 flavor bool
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100 default_value 0
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101 requires { !CYGSEM_IO_FLASH_VERIFY_PROGRAM }
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102 description "
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103 This option will be asserted by devices which cannot support
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104 direct access to the FLASH memory contents (e.g. EEPROM or NAND
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105 devices). In these cases, the driver must provide an appropriate
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106 hardware access function."
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107 }
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108
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109 cdl_option CYGSEM_IO_FLASH_CHATTER {
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110 display "Display status messages during flash operations"
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111 flavor bool
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112 default_value 1
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113 description "
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114 Selecting this option will cause the drivers to print status
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115 messages as various flash operations are undertaken."
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116 }
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117
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118 cdl_option CYGSEM_IO_FLASH_VERIFY_PROGRAM {
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119 display "Verify data programmed to flash"
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120 flavor bool
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121 default_value 1
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122 description "
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123 Selecting this option will cause verification of data
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124 programmed to flash."
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125 }
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126
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127 cdl_option CYGSEM_IO_FLASH_SOFT_WRITE_PROTECT {
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128 display "Platform has flash soft DIP switch write-protect"
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129 flavor bool
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130 default_value 0
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131 description "
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132 Selecting this option will cause the state of a hardware jumper or
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133 dipswitch to be read by software to determine whether the flash is
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134 write-protected or not."
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135 }
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136
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137 cdl_component CYGPKG_IO_FLASH_BLOCK_DEVICE {
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138 display "Instantiate in I/O block device API"
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139 flavor bool
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140 active_if CYGPKG_IO
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141 default_value 0
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142 compile -library=libextras.a flashiodev.c
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143 description "
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144 Provides a block device accessible using the standard I/O
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145 API ( cyg_io_read() etc. )"
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146
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147 cdl_component CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1 {
791
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148 display "Name of flash device 1 block device"
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149 flavor data
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150 default_value { "\"/dev/flash1\"" }
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151
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152 cdl_interface CYGINT_IO_FLASH_BLOCK_CFG_1 {
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153 requires 1 == CYGINT_IO_FLASH_BLOCK_CFG_1
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154 no_define
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155 }
208
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156
791
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157 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_1 {
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158 display "Static configuration"
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159 default_value 1
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160 implements CYGINT_IO_FLASH_BLOCK_CFG_1
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161 description "
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162 This configures the flash device 1 block device
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163 with static base and length"
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164
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165 cdl_option CYGNUM_IO_FLASH_BLOCK_OFFSET_1 {
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166 display "Start offset from flash base"
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167 flavor data
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168 default_value 0x100000
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169 description "
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170 This gives the offset from the base of flash which this
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171 block device corresponds to."
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172 }
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173 cdl_option CYGNUM_IO_FLASH_BLOCK_LENGTH_1 {
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174 display "Length"
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175 flavor data
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176 default_value 0x100000
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177 description "
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178 This gives the length of the region of flash given over
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179 to this block device."
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180 }
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181 }
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182 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_FIS_1 {
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183 display "Configuration from FIS"
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184 default_value 0
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185 implements CYGINT_IO_FLASH_BLOCK_CFG_1
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186 description "
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187 This configures the flash device 1 block device
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188 from Redboot FIS"
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189
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190 cdl_component CYGDAT_IO_FLASH_BLOCK_FIS_NAME_1 {
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191 display "Name of FIS entry"
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192 flavor data
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193 default_value { "\"jffs2\"" }
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194 }
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195 }
208
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196 }
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197 }
115
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198 }