FreeCalypso > hg > freecalypso-sw
view gsm-fw/cfgmagic/feature.pirhack-ffs @ 459:38afaeb194ea
os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Mon, 23 Jun 2014 06:54:40 +0000 |
parents | 6e7410f7975c |
children | 042c178ebac5 |
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# Concerning the FFS, there is one fundamental difference between the gtamodem # and pirelli targets: whereas the content of Openmoko's modem FFS is directly # fit for reuse by our fw (resulting from the phylogenetic proximity of the two # firmwares), Pirelli's original FFS has the same format, but its content is so # different that trying to reuse it would be more trouble than it is worth. # (And Pirelli's FFS contains no IMEI or RF calibration data to boot!) # # Therefore, I (FC developer Space Falcon) have decided that when targeting the # Pirelli, it would be better for us to start from our own blank FFS than to # deal with the original. However, because there is no single correct answer # as to which region of the flash chip we should use (other than needing to be # in the flash2 bank so we can use the more efficient multibank flash driver), # this feature pirhack-ffs takes two required arguments: the number of the # first flash2 sector to be used for the FFS and the total number of sectors # to be used. For example, this setting: # # feature pirhack-ffs 24 7 # # will configure our GSM fw to put its FFS in the last 7 256 KiB sectors of the # 2nd flash chip select, which coincidentally form an independent read/write # bank, and are part of the flash2 region which appears to be "unused" by the # original firmware. Or you can use all of this "unused" area like this: # # feature pirhack-ffs 18 13 # # The sum of the two numbers must not exceed 31, i.e., the end of our FFS must # be at or before the end of the "large sectors" main part of flash2. # Specifying feature pirhack-ffs 0 18 will make our FFS use the same sectors # as the original, but attempting to reuse the original FFS without reformatting # is NOT recommended or supported. if [ $TARGET != pirelli ] then echo \ "Error: feature pirhack-ffs is applicable only to target pirelli" 1>&2 exit 1 fi if [ $# != 3 ] then echo "feature pirhack-ffs: two arguments required" 1>&2 exit 1 fi FFS_IN_RAM=0 CONFIG_PIRHACK_FFS=1 CONFIG_PIRHACK_FFS_START=$2 CONFIG_PIRHACK_FFS_NBLOCKS=$3 CONFIG_FLASH_WRITE=1 export_to_c CONFIG_PIRHACK_FFS export_to_c CONFIG_PIRHACK_FFS_START export_to_c CONFIG_PIRHACK_FFS_NBLOCKS export_to_c CONFIG_FLASH_WRITE