From f4375c22662f82b1b4f94e88b1aba6998b1f34ba Mon Sep 17 00:00:00 2001
From: Richard Xia <rxia@sifive.com>
Date: Thu, 8 Dec 2016 12:14:17 -0800
Subject: [PATCH] Add variable to control what program gets flashed to FPGA.

---
 fpga/e300artydevkit/Makefile | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fpga/e300artydevkit/Makefile b/fpga/e300artydevkit/Makefile
index a815f6f..436ed8e 100644
--- a/fpga/e300artydevkit/Makefile
+++ b/fpga/e300artydevkit/Makefile
@@ -4,6 +4,10 @@ VIVADOFLAGS := \
 	-source script/board.tcl \
 	-source script/prologue.tcl
 
+# Path to a program in raw binary format to be flashed into the address that the
+# bootrom jumps to.
+FLASHED_PROGRAM ?=
+
 bit := obj/system.bit
 $(bit): script/impl.tcl  script/init.tcl
 	VSRC_TOP=$(VSRC_TOP) EXTRA_VSRCS="$(EXTRA_VSRCS)" $(VIVADO) $(VIVADOFLAGS) -source script/init.tcl -source script/impl.tcl
@@ -13,7 +17,7 @@ bit: $(bit)
 
 mcs := obj/system.mcs
 $(mcs): $(bit)
-	$(VIVADO) $(VIVADOFLAGS) script/cfgmem.tcl -tclargs $@ $^
+	$(VIVADO) $(VIVADOFLAGS) script/cfgmem.tcl -tclargs $@ $^ $(FLASHED_PROGRAM)
 
 .PHONY: mcs
 mcs: $(mcs)