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ice40: Add ice40_braminit pass to allow initialization of BRAM from file

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This adds a INIT_FILE attribute to the SB_RAM40_4K blocks that will
initialize content from a hex file. Same behavior is imlemented in the
simulation model and in a new pass for actual synthesis

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut 2019-03-07 23:48:10 +01:00
parent 7a40294e93
commit e71055cfe8
3 changed files with 211 additions and 37 deletions
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1
techlibs/ice40/Makefile.inc
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@ -1,5 +1,6 @@
OBJS += techlibs/ice40/synth_ice40.o
OBJS += techlibs/ice40/ice40_braminit.o
OBJS += techlibs/ice40/ice40_ffssr.o
OBJS += techlibs/ice40/ice40_ffinit.o
OBJS += techlibs/ice40/ice40_opt.o