FreeCalypso > hg > freecalypso-citrine
changeset 38:24eb59e61b44
implemented feature fcfam-ffs for fcdev3b target
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Wed, 03 May 2017 03:38:22 +0000 |
| parents | 5487db285025 |
| children | f385e4d87bad |
| files | cfgmagic/feature.fcfam-ffs cfgmagic/target.fcdev3b |
| diffstat | 2 files changed, 52 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/cfgmagic/feature.fcfam-ffs Wed May 03 03:38:22 2017 +0000 @@ -0,0 +1,51 @@ +# This feature is specific to FreeCalypso family targets, i.e., hardware +# designed and built within the FreeCalypso family of projects rather than +# pre-existing Calypso devices. FC family devices starting with FCDEV3B +# use the 16 MiB flash chip originally discovered on the Pirelli DP-L10, +# organized as two chip select banks of 8 MiB each; the first flash bank +# is for the firmware, and the second flash bank is ideally suited for +# file system storage. +# +# Because we don't really need an 8 MiB FFS, instead of allocating the +# entirety of the second flash bank for one gigantic FFS, our current +# convention allocates room for up to 3 potential FFS instances, each +# 2 MiB in size. Thus we have FFS location 0, FFS location 1 and +# FFS location 2. Our Magnetite firmware always uses FFS location 0; +# when running Citrine firmware, it is up to you whether you wish your +# Citrine fw to use the same FFS as Magnetite or its own separate FFS +# instance. + +check_target_feature "$1" + +if [ $# != 2 ] +then + echo "feature fcfam-ffs: extra argument required" 1>&2 + exit 1 +fi + +FFS_IN_RAM=0 +CONFIG_AFTERMARKET_FFS=1 + +case "$2" in + 0) + CONFIG_AFTERMARKET_FFS_START=0 + ;; + 1) + CONFIG_AFTERMARKET_FFS_START=8 + ;; + 2) + CONFIG_AFTERMARKET_FFS_START=16 + ;; + *) + echo "feature mokoffs: argument must be rw, ro or copy" 1>&2 + exit 1 + ;; +esac + +CONFIG_AFTERMARKET_FFS_NBLOCKS=8 +CONFIG_FLASH_WRITE=1 + +export_to_c CONFIG_AFTERMARKET_FFS +export_to_c CONFIG_AFTERMARKET_FFS_START +export_to_c CONFIG_AFTERMARKET_FFS_NBLOCKS +export_to_c CONFIG_FLASH_WRITE