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#-----------------------------------------------------------------

# File:    xilinx_rules.mk

# Author:  David Burnette

# Date:    April 7, 2008

#

# Description:

#

# Usage:

#  This make file fragment contains translate rules for synthesizing

#  Xilinx designs.

#

# This work was based on the Xilinx Makefile by Dave Vanden Bout

# from XESS Corp. Several major differences exist between his

# implementation and mine. This Makefile does not require PERL

# (though it does require AWK).

#

# Dependencies:

#  Depends on 'def_rules.mk' fragment.

#

# Revision History:

#   dgb 2008-04-07   Original version

#

#-----------------------------------------------------------------

include $(MKFRAGS)/def_rules.mk

# Determine Xilinx ISE location

ifeq "$(XILINX)" ""

  $(error The XILINX environment variable must be set to use this makefile)

endif

XILINX_NORMAL := $(subst \,/,$(XILINX))

MY_OS := $(shell /bin/uname -s)

ifeq "$(findstring CYGWIN_NT,$(MY_OS))" "CYGWIN_NT"

  ifeq "$(findstring WOW64,$(MY_OS))" "WOW64"

    XILINX_PLAT = nt64

  else

    XILINX_PLAT = nt

  endif

else

  ifeq "$(MY_OS)" "Linux"

    XILINX_PLAT = lin

  else

    $(error Could not determine OS type for locating XILINX applications)

  endif

endif

# Determine XILINX ISE version

XILINX_FILESET := $(XILINX_NORMAL)/fileset.txt

XILINX_VER := $(shell $(AWK) 'BEGIN { FS = "=" } /version/ { printf("%s",$$2) }'  $(XILINX_FILESET))

XILINX_MAJOR_VER := $(basename $(XILINX_VER))

# Xilinx tools

XST        := $(XILINX_NORMAL)/bin/$(XILINX_PLAT)/xst

NGDBUILD   := $(XILINX_NORMAL)/bin/$(XILINX_PLAT)/ngdbuild

MAP        := $(XILINX_NORMAL)/bin/$(XILINX_PLAT)/map

PAR        := $(XILINX_NORMAL)/bin/$(XILINX_PLAT)/par

BITGEN     := $(XILINX_NORMAL)/bin/$(XILINX_PLAT)/bitgen

PROMGEN    := $(XILINX_NORMAL)/bin/$(XILINX_PLAT)/promgen

TRCE       := $(XILINX_NORMAL)/bin/$(XILINX_PLAT)/trce

IMPACT     := $(XILINX_NORMAL)/bin/$(XILINX_PLAT)/impact

# Extract info from Xilinx ISE project for use with command line tools

XST_FILE := $(DESIGN_NAME).xst

PRJ_FILE := $(shell $(AWK) '/^-ifn/ { printf("%s",$$2) }'  $(XST_FILE) | tr -d "\r")

HDL_FILES := $(subst ",,$(shell $(AWK) '{ print $$3} ' $(PRJ_FILE)))

PART := $(shell $(AWK) '/^-p / { printf("%s",$$2) }' $(XST_FILE) | tr -d "\r")

DEVICE_tmp := $(shell $(AWK) -F - '/^-p / { printf("%s",$$2) }' $(XST_FILE))

DEVICE := $(subst p ,,$(DEVICE_tmp))

SPEED := $(shell $(AWK) -F - '/^-p / { printf("%s",$$3) }' $(XST_FILE))

PACKAGE := $(shell $(AWK) -F - '/^-p / { printf("%s",$$4) }' $(XST_FILE) | tr -d "\r")

BSD_FILE := $(XILINX)/$(FAMILY)/data/$(DEVICE).bsd

XSTHDPDIR1 := $(shell $(AWK) '/^set -xsthdpdir / { printf("%s",$$3) }'  $(XST_FILE) | tr -d "\r")

XSTHDPDIR := $(subst ",,$(XSTHDPDIR1))

TMPDIR1 := $(shell $(AWK) '/^set -tmpdir / { printf("%s",$$3) }'  $(XST_FILE) | tr -d "\r")

TMPDIR := $(subst ",,$(TMPDIR1))

INTSTYLE         ?= -intstyle silent      # call Xilinx tools in silent mode

INTSTYLE :=

XST_FLAGS        ?= $(INTSTYLE)           # most synthesis flags are specified in the .xst file

NGDBUILD_FLAGS   ?= $(INTSTYLE) -dd _ngo  # ngdbuild flags

NGDBUILD_FLAGS += $(if $(UCF_FILE),-uc,) $(UCF_FILE)

# Brute force determination of need for -k 4 option

ifeq "$(XILINX_MAJOR_VER)" "7"

K4_OPT := -k 4

endif

ifeq "$(XILINX_MAJOR_VER)" "8"

K4_OPT := -k 4

endif

ifeq "$(XILINX_MAJOR_VER)" "9"

K4_OPT := -k 4

endif

ifeq "$(XILINX_MAJOR_VER)" "10"

K4_OPT := -k 4

endif

ifeq "$(FAMILY)" "spartan6"

MAP_FLAGS        ?= $(INTSTYLE) $(COVER_MODE) -pr b $(K4_OPT) -c 100 -t 1

PAR_FLAGS        ?= $(INTSTYLE) -w -ol std

else

MAP_FLAGS        ?= $(INTSTYLE) -cm area -pr b $(K4_OPT) -c 100 -tx off

PAR_FLAGS        ?= $(INTSTYLE) -w -ol std -t 1

endif

TRCE_FLAGS       ?= $(INTSTYLE) -e 3 -l 3

BITGEN_FLAGS     ?= $(INTSTYLE)           # most bitgen flags are specified in the .ut file

PROMGEN_FLAGS    ?= -u 0                  # flags that control the MCS/EXO file generation

BITGEN_OPTIONS_FILE   ?= $(DESIGN_NAME).ut

#===================================================================

# Debug variable settings

debug_vars:

        @$(ECHO) "XST_FILE    = '$(XST_FILE)'"

        @$(ECHO) "PRJ_FILE    = '$(PRJ_FILE)'"

        @$(ECHO) "HDL_FILES   = '$(HDL_FILES)'"

        @$(ECHO) "PART        = '$(PART)'"

        @$(ECHO) "DEVICE      = '$(DEVICE)'"

        @$(ECHO) "SPEED       = '$(SPEED)'"

        @$(ECHO) "PACKAGE     = '$(PACKAGE)'"

        @$(ECHO) "UCF_FILE    = '$(UCF_FILE)'"

        @$(ECHO) "BSD_FILE    = '$(BSD_FILE)'"

        @$(ECHO) "XSTHDPDIR   = '$(XSTHDPDIR)'"

        @$(ECHO) "TMPDIR      = '$(TMPDIR)'"

#===================================================================

# Make sure tmpdirs are created

xst_tmp_dirs:

        @$(MKDIR) -p $(XSTHDPDIR)

        @$(MKDIR) -p $(TMPDIR)

        touch $@

#===================================================================

# Define dependencies

$(DESIGN_NAME).ngc: $(XST_FILE) $(PRJ_FILE) xst_tmp_dirs $(HDL_FILES) $(DESIGN_NAME).lso

$(DESIGN_NAME).ngd: $(DESIGN_NAME).ngc $(UCF_FILE)

$(DESIGN_NAME).bit: $(DESIGN_NAME).ncd $(BITGEN_OPTIONS_FILE)

$(DESIGN_NAME).mcs: $(DESIGN_NAME).bit

#===================================================================

# Rule to make impact cmd file

$(DESIGN_NAME)_impact.cmd:

        @$(ECHO)

        @$(ECHO) "======= Generating Impact command file ============"

        -@$(RM) $(DESIGN_NAME)_impact.cmd

        @$(ECHO) "setMode -ss" >>$@

        @$(ECHO) "setMode -sm" >>$@

        @$(ECHO) "setMode -hw140" >>$@

        @$(ECHO) "setMode -spi" >>$@

        @$(ECHO) "setMode -acecf" >>$@

        @$(ECHO) "setMode -acempm" >>$@

        @$(ECHO) "setMode -pff" >>$@

        @$(ECHO) "setMode -bs" >>$@

        @$(ECHO) "setMode -bscan" >>$@

        @$(ECHO) "setCable -p auto" >>$@

        @$(ECHO) "addDevice -p 1 -file $(BSD_FILE)" >>$@

        @$(ECHO) "Identify" >>$@

        @$(ECHO) "identifyMPM" >>$@

        @$(ECHO) "assignFile -p 1 -file $(DESIGN_NAME).bit" >>$@

        @$(ECHO) "program -p 1" >>$@

        @$(ECHO) "quit" >>$@

        @$(CAT) $@

.PHONY: do_impact

do_impact: $(DESIGN_NAME).bit $(DESIGN_NAME)_impact.cmd

        @$(ECHO)

        @$(ECHO) "======= Downloading bitstream using Impact ============"

        $(IMPACT) -batch $(DESIGN_NAME)_impact.cmd

#===================================================================

# TRANSLATE RULES

#   RULE: .xst => .ngc

# Synthesize the HDL files into an NGC file.  This rule is triggered if

# any of the HDL files are changed or the synthesis options are changed.

%.ngc: %.xst

        @$(ECHO)

        @$(ECHO) "======= Synthesis - XST ============================"

        $(XST) $(XST_FLAGS) -ifn $(XST_FILE) -ofn $(DESIGN_NAME).syr

#   RULE: .ngc => .ngd

# Take the output of the synthesizer and create the NGD file.  This rule

# will also be triggered if constraints file is changed.

%.ngd: %.ngc

        @$(ECHO)

        @$(ECHO) "======= Synthesis - NGDBUILD ======================="

        $(NGDBUILD) $(NGDBUILD_FLAGS) -p $(PART) $*.ngc $*.ngd

#   RULE: .ngd => _map.ncd and .pcf

# Map the NGD file and physical-constraints to the FPGA to create the mapped NCD file.

%_map.ncd %.pcf: %.ngd

        @$(ECHO)

        @$(ECHO) "======= Synthesis - MAP ============================"

        $(MAP) $(MAP_FLAGS) -p $(PART) -o $*_map.ncd $*.ngd $*.pcf

#   RULE: _map.ncd and .pcf => .ncd

# Place & route the mapped NCD file to create the final NCD file.

%.ncd: %_map.ncd %.pcf

        @$(ECHO)

        @$(ECHO) "======= Synthesis - PAR ============================"

        $(PAR) $(PAR_FLAGS) $*_map.ncd $*.ncd $*.pcf

#   RULE: .ncd => .bit

# Take the final NCD file and create an FPGA bitstream file.  This rule will also be

# triggered if the bit generation options file is changed.

%.bit: %.ncd $(BITGEN_OPTIONS_FILE)

        @$(ECHO)

        @$(ECHO) "======= Generating bitstream ======================="

        $(BITGEN) $(BITGEN_FLAGS) -f $(BITGEN_OPTIONS_FILE) $*.ncd

#   RULE: .bit => .mcs

# Convert a bitstream file into an MCS hex file that can be stored into Flash memory.

%.mcs: %.bit

        @$(ECHO)

        @$(ECHO) "======= Generating MCS prom ========================"

        $(PROMGEN) $(PROMGEN_FLAGS) $*.bit -p mcs -w

#   RULE: .bit => .exo

# Convert a bitstream file into an EXO hex file that can be stored into Flash memory.

%.exo: %.bit

        @$(ECHO)

        @$(ECHO) "======= Generating EXO prom ========================"

        $(PROMGEN) $(PROMGEN_FLAGS) $*.bit -p exo

# Create the FPGA timing report after place & route.

%.twr: %.ncd %.pcf

        @$(ECHO)

        @$(ECHO) "======= Generating Timing Report ==================="

        $(TRCE) $(TRCE_FLAGS) $*.ncd -o $*.twr $*.pcf

# Preserve intermediate files.

.PRECIOUS: %.ngc %.ngd %_map.ncd %.ncd %.twr %.vm6 %.jed