annotate gsm-fw/cfgmagic/feature.aftermarket-ffs @ 1000:36e3f6bf0156

top README: just describe what each subtree is for, and refer to other docs
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Sun, 06 Mar 2016 21:38:21 +0000
parents f22b34873ea5
children
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1 # This feature is specific to Compal and Pirelli targets. When we put our own
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2 # FreeCalypso firmware on these phones, we are using them in a way that is very
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3 # different from how they were intended to be used by their respective
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4 # manufacturers. Hence the term "aftermarket". Although the original firmwares
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5 # of these phones are TI-based and feature TI-based flash file systems, neither
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6 # Pirelli's FFS nor that of any Compal variant is suitable for direct reuse by
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7 # FreeCalypso GSM fw.
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8 #
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9 # Therefore, if we are putting our own fw on one of these aftermarket devices
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10 # and we need to use a real non-volatile FFS in flash, rather than fake FFS
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11 # in RAM, we need to define our own aftermarket FFS, and we can put it in any
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12 # part of the flash that suits our needs, without much regard for Compal's or
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13 # Foxconn's originally intended flash layout - what we are doing with their
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14 # hardware goes totally against their intentions anyway.
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15 #
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16 # Because our aftermarket FFS configuration inherently involves our own choice
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17 # of flash location for this FFS, the present feature aftermarket-ffs takes two
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parents: 942
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18 # required arguments: the starting flash sector number and the total number of
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19 # flash sectors to be used for the aftermarket FFS. It is the user's
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20 # responsibility to ensure that these numbers are sensible.
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22 check_target_feature "$1"
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24 if [ $# != 3 ]
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25 then
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26 echo "feature aftermarket-ffs: two arguments required" 1>&2
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27 exit 1
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28 fi
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29
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30 FFS_IN_RAM=0
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31 CONFIG_AFTERMARKET_FFS=1
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32 CONFIG_AFTERMARKET_FFS_START=$2
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33 CONFIG_AFTERMARKET_FFS_NBLOCKS=$3
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34 CONFIG_FLASH_WRITE=1
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35 export_to_c CONFIG_AFTERMARKET_FFS
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36 export_to_c CONFIG_AFTERMARKET_FFS_START
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37 export_to_c CONFIG_AFTERMARKET_FFS_NBLOCKS
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38 export_to_c CONFIG_FLASH_WRITE