Mercurial > flash_v2
annotate packages/io/flash/current/cdl/io_flash.cdl @ 1770:be052fe43d4d
Trivial tweaks to preceding checkin.
| author | jlarmour |
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| date | Wed, 27 Sep 2006 14:52:23 +0000 |
| parents | 8667859d61ab |
| children |
| 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) 2004, 2006 eCosCentric Ltd |
| 1745 | 12 ## Copyright (C) 2004 Andrew Lunn |
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13 ## Copyright (C) 2003 Gary Thomas |
| 1745 | 14 ## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, 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 version. |
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19 ## |
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20 ## eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
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21 ## WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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22 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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23 ## for more details. |
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24 ## |
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25 ## You should have received a copy of the GNU General Public License along |
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26 ## with eCos; if not, write to the Free Software Foundation, Inc., |
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27 ## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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28 ## |
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29 ## As a special exception, if other files instantiate templates or use macros |
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30 ## or inline functions from this file, or you compile this file and link it |
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31 ## with other works to produce a work based on this file, this file does not |
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32 ## by itself cause the resulting work to be covered by the GNU General Public |
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33 ## License. However the source code for this file must still be made available |
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34 ## in accordance with section (3) of the GNU General Public License. |
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35 ## |
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36 ## This exception does not invalidate any other reasons why a work based on |
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37 ## this file might be covered by the GNU General Public License. |
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38 ## |
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39 ## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
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40 ## at http://sources.redhat.com/ecos/ecos-license/ |
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41 ## ------------------------------------------- |
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42 #####ECOSGPLCOPYRIGHTEND#### |
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43 # ==================================================================== |
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44 ######DESCRIPTIONBEGIN#### |
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45 # |
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46 # Author(s): gthomas |
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47 # Original data: gthomas |
| 1745 | 48 # Contributors: woehler, bartv |
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49 # Date: 2000-07-06 |
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50 # |
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51 #####DESCRIPTIONEND#### |
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52 # |
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53 # ==================================================================== |
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54 |
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55 cdl_package CYGPKG_IO_FLASH { |
| 1745 | 56 display "FLASH device drivers" |
| 57 include_dir cyg/io | |
| 58 doc ref/flash.html | |
| 59 description " | |
| 60 This package provides support for the flash devices on the | |
| 61 current platform." | |
| 62 requires CYGPKG_ISOINFRA | |
| 63 requires CYGINT_ISO_STRING_STRFUNCS | |
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64 |
| 1745 | 65 compile flash.c |
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66 |
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67 cdl_interface CYGHWR_IO_FLASH_DEVICE { |
| 1745 | 68 display "Hardware FLASH device drivers" |
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69 requires { CYGHWR_IO_FLASH_DEVICE >= 1 } |
| 1745 | 70 description " |
| 71 This calculated option gives the number of flash devices | |
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72 on the current platform. The generic flash support requires |
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73 at least one device." |
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74 } |
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75 |
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76 cdl_interface CYGHWR_IO_FLASH_BLOCK_LOCKING { |
| 1745 | 77 display "Hardware can support block locking" |
| 78 flavor booldata | |
| 79 description " | |
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80 This option will be enabled by devices which can support |
| 1745 | 81 locking (write-protection) of individual flash blocks. If |
| 82 none of the devices support locking then the relevant code | |
| 83 in the generic flash package can be eliminated." | |
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84 } |
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85 |
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86 cdl_interface CYGHWR_IO_FLASH_INDIRECT_READS { |
| 1745 | 87 display "Hardware requires indirect reads" |
| 88 flavor booldata | |
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89 description " |
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90 Some flash devices can be read directly like any other |
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91 memory. Others can only be accessed indirectly, which |
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92 involves extra code. If none of the flash devices on the |
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93 target hardware use indirect reads then the extra code |
| 1745 | 94 can be eliminated." |
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95 } |
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96 |
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97 cdl_interface CYGHWR_IO_FLASH_DEVICE_NEEDS_CACHE_HANDLED { |
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98 display "Device driver needs cache handled centrally" |
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99 flavor booldata |
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100 description " |
| 1770 | 101 Managing flash often requires interacting with the cache. |
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102 Some device drivers do not require the generic flash code to |
| 1770 | 103 manipulate the cache, either because they do it themselves or |
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104 because the hardware does the right thing. Other drivers |
| 1770 | 105 require the generic code to disable/enable the cache before |
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106 calling into the driver." |
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107 } |
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108 |
| 1706 | 109 cdl_interface CYGHWR_IO_FLASH_DEVICE_LEGACY { |
| 1745 | 110 display "Hardware driver uses the legacy interface" |
| 111 flavor booldata | |
| 112 compile -library=libextras.a legacy_dev.c | |
| 113 description " | |
| 114 The generic flash code can work with either a legacy device | |
| 115 driver or with V2 drivers. If a legacy driver is used on the | |
| 116 current platform then this option will be implemented." | |
| 117 requires { CYGHWR_IO_FLASH_DEVICE_LEGACY <= 1 } | |
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118 |
| 1770 | 119 # For now assume all legacy devices need the cache handled by |
| 120 # the central code | |
| 121 implements CYGHWR_IO_FLASH_DEVICE_NEEDS_CACHE_HANDLED | |
| 1706 | 122 } |
| 123 | |
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124 cdl_option CYGSEM_IO_FLASH_READ_INDIRECT { |
| 1745 | 125 display "Legacy device driver uses indirect reads." |
| 126 active_if CYGHWR_IO_FLASH_DEVICE_LEGACY | |
| 127 flavor bool | |
| 128 default_value 0 | |
| 129 requires { !CYGSEM_IO_FLASH_VERIFY_PROGRAM } | |
| 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 { |
| 1745 | 138 display "Display status messages during flash operations" |
| 139 flavor bool | |
| 140 default_value 1 | |
| 141 description " | |
| 142 Selecting this option will cause the flash code 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 { |
| 1745 | 147 display "Verify data programmed to flash" |
| 148 flavor bool | |
| 149 default_value 1 | |
| 150 active_if { CYGHWR_IO_FLASH_INDIRECT_READS < CYGHWR_IO_FLASH_DEVICE } | |
| 151 description " | |
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152 Selecting this option will cause verification of data |
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153 programmed to flash." |
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154 } |
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155 |
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156 cdl_option CYGSEM_IO_FLASH_SOFT_WRITE_PROTECT { |
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157 display "Platform has flash soft DIP switch write-protect" |
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158 flavor bool |
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159 default_value 0 |
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160 description " |
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161 Selecting this option will cause the state of a hardware jumper or |
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162 dipswitch to be read by software to determine whether the flash is |
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163 write-protected or not." |
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164 } |
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165 |
| 1706 | 166 cdl_option CYGSEM_IO_FLASH_LEGACY_API { |
| 167 display "Provide the legacy user API" | |
| 168 flavor bool | |
| 169 default_value 1 | |
| 170 compile legacy_api.c | |
| 171 description " | |
| 172 Provide an implementation of the lagacy user API. This is mapped | |
| 173 onto the new API via a small layer of code" | |
| 174 } | |
| 175 | |
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176 cdl_component CYGPKG_IO_FLASH_BLOCK_DEVICE { |
| 1745 | 177 display "Provide /dev block devices" |
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178 flavor bool |
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179 active_if CYGPKG_IO |
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180 default_value 0 |
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181 compile -library=libextras.a flashiodev.c |
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182 description " |
| 1745 | 183 Provide one or more block devices below /dev which can be |
| 184 accessed using standard I/O functions such as eCos cyg_io_read() | |
| 185 and POSIX open()." | |
| 186 | |
| 187 for { set ::dev 1 } { $::dev <= 2 } { incr ::dev } { | |
| 188 | |
| 189 cdl_component CYGPKG_IO_FLASH_BLOCK_DEVICE_$::dev { | |
| 190 display "Provide block device $::dev" | |
| 191 if { 1 == $::dev } { | |
| 192 default_value 1 | |
| 193 } else { | |
| 194 default_value 0 | |
| 195 } | |
| 196 description "Provide block device $::dev for use with standard I/O" | |
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197 |
| 1745 | 198 cdl_option CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_$::dev { |
| 199 display "Name of flash block device $::dev" | |
| 200 flavor data | |
| 201 default_value "\"\\\"/dev/flash$::dev\\\"\"" | |
| 202 description " | |
| 203 This option determines the name by which the block | |
| 204 device can be accessed." | |
| 205 } | |
| 206 | |
| 207 cdl_interface CYGINT_IO_FLASH_BLOCK_CFG_$::dev { | |
| 208 requires 1 == CYGINT_IO_FLASH_BLOCK_CFG_$::dev | |
| 209 no_define | |
| 210 } | |
| 1706 | 211 |
| 1745 | 212 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_$::dev { |
| 213 display "Static configuration via offset" | |
| 214 default_value 1 | |
| 215 implements CYGINT_IO_FLASH_BLOCK_CFG_$::dev | |
| 216 description " | |
| 217 This configures the flash block device $::dev | |
| 1706 | 218 with static offset from the base of the first |
| 219 flash device and length" | |
| 1745 | 220 |
| 221 cdl_option CYGNUM_IO_FLASH_BLOCK_OFFSET_$::dev { | |
| 222 display "Start offset from flash base" | |
| 223 flavor data | |
| 224 default_value 0xFFFFFFFF | |
| 225 requires 0xFFFFFFFF != CYGNUM_IO_FLASH_BLOCK_OFFSET_$::dev | |
| 226 description " | |
| 1706 | 227 This gives the offset from the base of flash |
| 228 of the first flash device which this block device | |
| 229 corresponds to." | |
| 1745 | 230 } |
| 231 cdl_option CYGNUM_IO_FLASH_BLOCK_LENGTH_$::dev { | |
| 232 display "Length" | |
| 233 flavor data | |
| 234 default_value 0 | |
| 235 requires 0 != CYGNUM_IO_FLASH_BLOCK_OFFSET_$::dev | |
| 236 description " | |
| 237 This gives the length of the region of flash given over | |
| 238 to this block device." | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_ABSOLUTE_$::dev { | |
| 243 display "Static configuration via absolute address" | |
| 244 default_value 0 | |
| 245 implements CYGINT_IO_FLASH_BLOCK_CFG_$::dev | |
| 246 description " | |
| 247 This configures the flash block device $::dev | |
| 248 with absolute base address and a length" | |
| 249 | |
| 250 cdl_option CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_START_$::dev { | |
| 251 display "Start offset from flash base" | |
| 252 flavor data | |
| 253 default_value 0xFFFFFFFF | |
| 254 requires 0xFFFFFFFF != CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_START_$::dev | |
| 255 description " | |
| 256 This gives the absolute address in flash which this | |
| 257 block device corresponds to." | |
| 258 } | |
| 259 cdl_option CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_LENGTH_$::dev { | |
| 260 display "Length" | |
| 261 flavor data | |
| 262 default_value 0 | |
| 263 requires 0 != CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_LENGTH_$::dev | |
| 264 description " | |
| 1706 | 265 This gives the length of the region of flash given over |
| 266 to this block device." | |
| 1745 | 267 } |
| 268 } | |
| 269 | |
| 270 cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_FIS_$::dev { | |
| 271 display "Configuration from FIS" | |
| 272 default_value 0 | |
| 273 implements CYGINT_IO_FLASH_BLOCK_CFG_$::dev | |
| 274 description " | |
| 275 This configures the flash block device $::dev | |
| 276 from Redboot FIS" | |
| 277 | |
| 278 cdl_component CYGDAT_IO_FLASH_BLOCK_FIS_NAME_$::dev { | |
| 279 display "Name of FIS entry" | |
| 280 flavor data | |
| 281 requires "\"\"" != CYGDAT_IO_FLASH_BLOCK_FIS_NAME_$::dev | |
| 282 if { 1 == $::dev } { | |
| 283 default_value { "\"jffs2\"" } | |
| 284 } elseif { 2 == $::dev } { | |
| 285 default_value { "\"jffs2-2\"" } | |
| 286 } else { | |
| 287 default_value { "\"\"" } | |
| 288 } | |
| 289 } | |
| 290 } | |
| 1706 | 291 } |
| 1745 | 292 } |
| 293 } | |
| 1706 | 294 |
| 1745 | 295 # FIXME: remove in next release |
| 296 cdl_interface CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM { | |
| 297 display "Hardware FLASH device drivers are not in RAM" | |
| 298 flavor booldata | |
| 299 description " | |
| 300 Use of this interface is deprecated. | |
| 301 Drivers should make sure that the functions are | |
| 302 linked to RAM by putting them in .2ram sections." | |
| 303 requires !CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM | |
| 304 } | |
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305 } |