FreeCalypso > hg > freecalypso-sw
annotate gsm-fw/cfgmagic/feature.pirhack-ffs @ 680:04d1b20eb7b0
alr_main.c compiles
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Mon, 29 Sep 2014 17:47:47 +0000 |
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1 # Concerning the FFS, there is one fundamental difference between the gtamodem |
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2 # and pirelli targets: whereas the content of Openmoko's modem FFS is directly |
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3 # fit for reuse by our fw (resulting from the phylogenetic proximity of the two |
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4 # firmwares), Pirelli's original FFS has the same format, but its content is so |
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5 # different that trying to reuse it would be more trouble than it is worth. |
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6 # (And Pirelli's FFS contains no IMEI or RF calibration data to boot!) |
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7 # |
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8 # Therefore, I (FC developer Space Falcon) have decided that when targeting the |
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9 # Pirelli, it would be better for us to start from our own blank FFS than to |
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10 # deal with the original. However, because there is no single correct answer |
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11 # as to which region of the flash chip we should use (other than needing to be |
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12 # in the flash2 bank so we can use the more efficient multibank flash driver), |
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13 # this feature pirhack-ffs takes two required arguments: the number of the |
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14 # first flash2 sector to be used for the FFS and the total number of sectors |
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15 # to be used. For example, this setting: |
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16 # |
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17 # feature pirhack-ffs 24 7 |
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18 # |
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19 # will configure our GSM fw to put its FFS in the last 7 256 KiB sectors of the |
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20 # 2nd flash chip select, which coincidentally form an independent read/write |
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21 # bank, and are part of the flash2 region which appears to be "unused" by the |
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22 # original firmware. Or you can use all of this "unused" area like this: |
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23 # |
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24 # feature pirhack-ffs 18 13 |
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25 # |
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26 # The sum of the two numbers must not exceed 31, i.e., the end of our FFS must |
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27 # be at or before the end of the "large sectors" main part of flash2. |
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28 # Specifying feature pirhack-ffs 0 18 will make our FFS use the same sectors |
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29 # as the original, but attempting to reuse the original FFS without reformatting |
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30 # is NOT recommended or supported. |
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31 |
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32 if [ $TARGET != pirelli ] |
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33 then |
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34 echo \ |
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35 "Error: feature pirhack-ffs is applicable only to target pirelli" 1>&2 |
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36 exit 1 |
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37 fi |
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38 |
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39 if [ $# != 3 ] |
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40 then |
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41 echo "feature pirhack-ffs: two arguments required" 1>&2 |
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42 exit 1 |
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43 fi |
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44 |
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45 FFS_IN_RAM=0 |
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46 CONFIG_PIRHACK_FFS=1 |
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47 CONFIG_PIRHACK_FFS_START=$2 |
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48 CONFIG_PIRHACK_FFS_NBLOCKS=$3 |
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49 CONFIG_FLASH_WRITE=1 |
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50 export_to_c CONFIG_PIRHACK_FFS |
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51 export_to_c CONFIG_PIRHACK_FFS_START |
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52 export_to_c CONFIG_PIRHACK_FFS_NBLOCKS |
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53 export_to_c CONFIG_FLASH_WRITE |