Mercurial > flash_v2

annotate packages/io/flash/current/cdl/io_flash.cdl @ 1742:a668b95e5f2e

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Only include the support for indirect flash reads if there are devices which need it.
author bartv
date Sat, 20 Nov 2004 23:31:59 +0000
parents 3845779eca10
children 49e24a462730
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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 ## Copyright (C) 2004 Andrew Lunn
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14 ##
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15 ## eCos is free software; you can redistribute it and/or modify it under
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16 ## the terms of the GNU General Public License as published by the Free
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17 ## Software Foundation; either version 2 or (at your option) any later version.
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18 ##
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19 ## eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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20 ## WARRANTY; without even the implied warranty of MERCHANTABILITY or
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21 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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22 ## for more details.
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23 ##
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24 ## You should have received a copy of the GNU General Public License along
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25 ## with eCos; if not, write to the Free Software Foundation, Inc.,
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26 ## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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27 ##
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28 ## As a special exception, if other files instantiate templates or use macros
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29 ## or inline functions from this file, or you compile this file and link it
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30 ## with other works to produce a work based on this file, this file does not
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31 ## by itself cause the resulting work to be covered by the GNU General Public
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32 ## License. However the source code for this file must still be made available
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33 ## in accordance with section (3) of the GNU General Public License.
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34 ##
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35 ## This exception does not invalidate any other reasons why a work based on
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36 ## this file might be covered by the GNU General Public License.
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37 ##
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38 ## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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39 ## at http://sources.redhat.com/ecos/ecos-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): gthomas
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46 # Original data: gthomas
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47 # Contributors: woehler
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48 # Date: 2000-07-06
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49 #
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50 #####DESCRIPTIONEND####
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51 #
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52 # ====================================================================
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53
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54 cdl_package CYGPKG_IO_FLASH {
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55 display "FLASH device drivers"
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56 include_dir cyg/io
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57 doc ref/flash.html
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58 description "
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59 This option enables drivers for basic I/O services on
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60 flash devices."
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61 requires CYGPKG_ISOINFRA
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62 requires CYGINT_ISO_STRING_STRFUNCS
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63
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64 compile flash.c
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65
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66 define_proc {
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67 puts $::cdl_header "#include <pkgconf/system.h>"
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68 puts $::cdl_header "#ifdef CYGDAT_IO_FLASH_DEVICE_HEADER"
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69 puts $::cdl_header "# include CYGDAT_IO_FLASH_DEVICE_HEADER"
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70 puts $::cdl_header "#endif "
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71 }
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72
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73 cdl_interface CYGHWR_IO_FLASH_DEVICE {
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74 display "Hardware FLASH device drivers"
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75 description "
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76 This option enables the hardware device drivers
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77 for the current platform."
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78 }
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79
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80 cdl_interface CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM {
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81 display "Hardware FLASH device drivers are not in RAM"
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82 flavor booldata
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83 description "
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84 Use of this interface is deprecated.
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85 Drivers should make sure that the functions are
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86 linked to RAM by putting them in .2ram sections."
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87 requires !CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM
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88 }
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89
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90 cdl_interface CYGHWR_IO_FLASH_BLOCK_LOCKING {
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91 display "Hardware can support block locking"
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92 flavor booldata
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93 description "
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94 This option will be enabled by devices which can support
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95 locking (write-protection) of individual blocks."
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96 }
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97
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98 cdl_interface CYGHWR_IO_FLASH_INDIRECT_READS {
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99 display "Hardware requires indirect reads"
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100 flavor booldata
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101 description "
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102 Some flash devices can be read directly like any other
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103 memory. Others can only be accessed indirectly, which
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104 involves extra code. If none of the flash devices on the
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105 target hardware use indirect reads then the extra code
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106 can be eliminated."
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107 }
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108
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109 cdl_interface CYGHWR_IO_FLASH_DEVICE_LEGACY {
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110 display "Hardware driver uses the legacy interface"
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111 flavor booldata
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112 description "
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113 The flash device driver implements the legacy interface to the
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114 flash library"
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115 }
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116
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117 cdl_interface CYGHWR_IO_FLASH_DEVICE_V2 {
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118 display "Hardware driver uses the V2 interface"
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119 flavor booldata
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120 description "
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121 The flash device driver implements the V2 interface to the
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122 flash library"
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123 }
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124
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125 cdl_option CYGSEM_IO_FLASH_READ_INDIRECT {
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126 display "Hardware cannot support direct access to FLASH memory"
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127 flavor bool
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128 default_value 0
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129 requires { !CYGSEM_IO_FLASH_VERIFY_PROGRAM }
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130 description "
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131 This option will be asserted by devices which cannot support
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132 direct access to the FLASH memory contents (e.g. EEPROM or NAND
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133 devices). In these cases, the driver must provide an appropriate
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134 hardware access function."
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135 }
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136
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137 cdl_option CYGSEM_IO_FLASH_CHATTER {
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138 display "Display status messages during flash operations"
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139 flavor bool
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140 default_value 1
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141 description "
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142 Selecting this option will cause the drivers to print status
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143 messages as various flash operations are undertaken."
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144 }
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145
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146 cdl_option CYGSEM_IO_FLASH_VERIFY_PROGRAM {
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147 display "Verify data programmed to flash"
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148 flavor bool
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parents: 154
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149 default_value 1
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parents: 154
diff changeset
150 description "
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151 Selecting this option will cause verification of data
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152 programmed to flash."
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153 }
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154
174
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155 cdl_option CYGSEM_IO_FLASH_SOFT_WRITE_PROTECT {
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156 display "Platform has flash soft DIP switch write-protect"
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parents: 172
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157 flavor bool
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parents: 172
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158 default_value 0
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parents: 172
diff changeset
159 description "
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parents: 172
diff changeset
160 Selecting this option will cause the state of a hardware jumper or
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parents: 172
diff changeset
161 dipswitch to be read by software to determine whether the flash is
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parents: 172
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162 write-protected or not."
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163 }
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164
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165
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166 cdl_option CYGSEM_IO_FLASH_LEGACY_API {
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167 display "Provide the legacy user API"
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168 flavor bool
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169 default_value 1
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170 compile legacy_api.c
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171 description "
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172 Provide an implementation of the lagacy user API. This is mapped
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173 onto the new API via a small layer of code"
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174 }
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175
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176 cdl_option CYGSEM_IO_FLASH_LEGACY_DEVICE_API {
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177 display "Provide the legacy device API"
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178 flavor bool
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179 default_value CYGHWR_IO_FLASH_DEVICE_LEGACY
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180 compile -library=libextras.a legacy_dev.c
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181 description "
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182 Provide an implementation of the legacy device API. This can be
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183 used to interface to one legacy device."
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184 }
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185
208
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186 cdl_component CYGPKG_IO_FLASH_BLOCK_DEVICE {
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187 display "Instantiate in I/O block device API"
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parents: 191
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188 flavor bool
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parents: 191
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189 active_if CYGPKG_IO
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parents: 191
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190 default_value 0
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parents: 191
diff changeset
191 compile -library=libextras.a flashiodev.c
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parents: 191
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192 description "
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193 Provides a block device accessible using the standard I/O
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parents: 191
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194 API ( cyg_io_read() etc. )"
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parents: 191
diff changeset
195
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196 cdl_component CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1 {
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197 display "Name of flash device 1 block device"
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198 flavor data
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199 default_value { "\"/dev/flash1\"" }
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200
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201 cdl_interface CYGINT_IO_FLASH_BLOCK_CFG_1 {
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202 requires 1 == CYGINT_IO_FLASH_BLOCK_CFG_1
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203 no_define
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204 }
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205
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206 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_1 {
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207 display "Static configuration via offset"
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208 default_value 1
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209 implements CYGINT_IO_FLASH_BLOCK_CFG_1
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210 description "
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211 This configures the flash device 1 block device
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212 with static offset from the base of the first
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213 flash device and length"
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214
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215 cdl_option CYGNUM_IO_FLASH_BLOCK_OFFSET_1 {
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216 display "Start offset from flash base"
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217 flavor data
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218 default_value 0x100000
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219 description "
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220 This gives the offset from the base of flash
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221 of the first flash device which this block device
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222 corresponds to."
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223 }
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224 cdl_option CYGNUM_IO_FLASH_BLOCK_LENGTH_1 {
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225 display "Length"
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226 flavor data
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227 default_value 0x100000
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228 description "
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229 This gives the length of the region of flash given over
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230 to this block device."
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231 }
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232 }
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233 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_ABSOLUTE_1 {
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234 display "Absolute static configuration"
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235 default_value 0
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236 implements CYGINT_IO_FLASH_BLOCK_CFG_1
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237 description "
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238 This configures the flash device 1 block device
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239 with absolute base address and a length"
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240
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241 cdl_option CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_START_1 {
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242 display "Start offset from flash base"
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243 flavor data
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244 default_value 0x4000000
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245 description "
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246 This gives the absolute address in flash which this
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247 block device corresponds to."
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248 }
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249 cdl_option CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_LENGTH_1 {
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250 display "Length"
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251 flavor data
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252 default_value 0x100000
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253 description "
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254 This gives the length of the region of flash given over
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255 to this block device."
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256 }
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257 }
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258 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_FIS_1 {
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259 display "Configuration from FIS"
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260 default_value 0
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261 implements CYGINT_IO_FLASH_BLOCK_CFG_1
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262 description "
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263 This configures the flash device 1 block device
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264 from Redboot FIS"
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265
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266 cdl_component CYGDAT_IO_FLASH_BLOCK_FIS_NAME_1 {
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267 display "Name of FIS entry"
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268 flavor data
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269 default_value { "\"jffs2\"" }
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270 }
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271 }
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272 }
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273 cdl_component CYGSEM_IO_FLASH_BLOCK_DEVICE_2 {
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274 display "Implements a second block device"
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275 default_value 0
208
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276
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277 cdl_component CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_2 {
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278 display "Name of flash device 2 block device"
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279 flavor data
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280 default_value { "\"/dev/flash2\"" }
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281
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282 cdl_interface CYGINT_IO_FLASH_BLOCK_CFG_2 {
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283 requires 1 == CYGINT_IO_FLASH_BLOCK_CFG_2
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284 no_define
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285 }
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286
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287 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_2 {
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288 display "Static configuration via offset"
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289 default_value 1
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290 implements CYGINT_IO_FLASH_BLOCK_CFG_2
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291 description "
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292 This configures the flash device 2 block device
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293 with static offset from the base of the first
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294 flash device and length"
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295
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296 cdl_option CYGNUM_IO_FLASH_BLOCK_OFFSET_2 {
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297 display "Start offset from flash base"
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298 flavor data
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299 default_value 0x100000
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300 description "
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301 This gives the offset from the base of flash
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302 of the first flash device which this block device
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303 corresponds to."
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304 }
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305 cdl_option CYGNUM_IO_FLASH_BLOCK_LENGTH_2 {
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306 display "Length"
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307 flavor data
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308 default_value 0x100000
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309 description "
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310 This gives the length of the region of flash
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311 given over to this block device."
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312 }
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313 }
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314 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_ABSOLUTE_2 {
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315 display "Absolute static configuration"
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316 default_value 0
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317 implements CYGINT_IO_FLASH_BLOCK_CFG_2
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318 description "
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319 This configures the flash device 2 block device
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320 with absolute base address and a length"
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321
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322 cdl_option CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_START_2 {
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323 display "Start offset from flash base"
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324 flavor data
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325 default_value 0x4000000
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326 description "
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327 This gives the absolute address in flash which this
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328 block device corresponds to."
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329 }
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330 cdl_option CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_LENGTH_2 {
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331 display "Length"
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332 flavor data
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333 default_value 0x100000
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334 description "
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335 This gives the length of the region of flash
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336 given over to this block device."
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337 }
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338 }
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339
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340 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_FIS_2 {
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341 display "Configuration from FIS"
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342 default_value 0
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343 implements CYGINT_IO_FLASH_BLOCK_CFG_2
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344 description "
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345 This configures the flash device 2 block device
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346 from Redboot FIS"
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347
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348 cdl_component CYGDAT_IO_FLASH_BLOCK_FIS_NAME_2 {
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349 display "Name of FIS entry"
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350 flavor data
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351 default_value { "\"jffs2-2\"" }
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352 }
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353 }
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354 }
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355 }
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356 }
1742
a668b95e5f2e Only include the support for indirect flash reads if there are devices
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357 }