From 087e3dda89e59058ab2c169a70165814a97edc5b Mon Sep 17 00:00:00 2001
From: Charles Papon <charles.papon.90@gmail.com>
Date: Sat, 29 Jul 2017 22:43:43 +0200
Subject: [PATCH] Add Murax scripts

---
 README.md                  |  2 ++
 scripts/Murax/makefile     | 23 +++++++++++++++++++++
 scripts/Murax/toplevel.pcf | 16 +++++++++++++++
 scripts/Murax/toplevel.v   | 41 ++++++++++++++++++++++++++++++++++++++
 4 files changed, 82 insertions(+)
 create mode 100644 scripts/Murax/makefile
 create mode 100644 scripts/Murax/toplevel.pcf
 create mode 100644 scripts/Murax/toplevel.v

diff --git a/README.md b/README.md
index f6a6fc2..a9030c7 100644
--- a/README.md
+++ b/README.md
@@ -264,6 +264,8 @@ Murax ->
   ICE40-HX   ->  53 Mhz 2142 LC (icestorm)
 ```
 
+There is some scripts to generate the SoC and call the icestorm toolchain there : scripts/Murax/
+
 ## Build the RISC-V GCC
 
 To install in /opt/ the rv32i and rv32im gcc, do the following (will take hours):
diff --git a/scripts/Murax/makefile b/scripts/Murax/makefile
new file mode 100644
index 0000000..72827e8
--- /dev/null
+++ b/scripts/Murax/makefile
@@ -0,0 +1,23 @@
+
+
+VERILOG = ../../Murax.v toplevel.v
+
+
+bin/toplevel.bin : toplevel.pcf ${VERILOG}
+	mkdir -p bin
+	yosys -v3 -p "synth_ice40 -top toplevel -blif bin/toplevel.blif" ${VERILOG}
+	arachne-pnr -p toplevel.pcf -d 8k --max-passes 600 -P ct256 bin/toplevel.blif -o bin/toplevel.asc
+	icepack bin/toplevel.asc bin/toplevel.bin
+
+generate :
+	(cd ../..; sbt "run-main vexriscv.demo.Murax")
+
+
+compile : bin/toplevel.bin
+
+time: bin/toplevel.bin
+	icetime -tmd hx8k bin/toplevel.asc
+
+prog : bin/toplevel.bin
+	sudo iceprog -S bin/toplevel.bin
+
diff --git a/scripts/Murax/toplevel.pcf b/scripts/Murax/toplevel.pcf
new file mode 100644
index 0000000..e2a956d
--- /dev/null
+++ b/scripts/Murax/toplevel.pcf
@@ -0,0 +1,16 @@
+## ICE40-hx8k breakout board
+
+set_io io_J3  J3
+set_io io_H16 H16
+set_io io_G15 G15
+set_io io_G16 G16
+set_io io_F15 F15
+set_io io_led[0] B5
+set_io io_led[1] B4
+set_io io_led[2] A2
+set_io io_led[3] A1
+set_io io_led[4] C5
+set_io io_led[5] C4
+set_io io_led[6] B3
+set_io io_led[7] C3
+
diff --git a/scripts/Murax/toplevel.v b/scripts/Murax/toplevel.v
new file mode 100644
index 0000000..7724f5d
--- /dev/null
+++ b/scripts/Murax/toplevel.v
@@ -0,0 +1,41 @@
+`timescale 1ns / 1ps
+
+module toplevel(
+    input   io_J3,
+    input   io_H16,
+    input   io_G15,
+    output  io_G16,
+    input   io_F15,
+    output [7:0] io_led
+  );
+  
+  wire [31:0] io_gpioA_read;
+  wire [31:0] io_gpioA_write;
+  wire [31:0] io_gpioA_writeEnable;
+  wire io_mainClk;
+  wire io_jtag_tck;
+  
+  SB_GB mainClkBuffer (
+    .USER_SIGNAL_TO_GLOBAL_BUFFER (io_J3),
+    .GLOBAL_BUFFER_OUTPUT ( io_mainClk)
+  );
+    
+  SB_GB jtagClkBuffer (
+    .USER_SIGNAL_TO_GLOBAL_BUFFER (io_H16),
+    .GLOBAL_BUFFER_OUTPUT ( io_jtag_tck)
+  );
+  
+  assign io_led = io_gpioA_write[7 : 0];
+
+  Murax murax ( 
+    .io_asyncReset(0),
+    .io_mainClk (io_mainClk ),
+    .io_jtag_tck(io_jtag_tck),
+    .io_jtag_tdi(io_G15),
+    .io_jtag_tdo(io_G16),
+    .io_jtag_tms(io_F15),
+    .io_gpioA_read       (io_gpioA_read),
+    .io_gpioA_write      (io_gpioA_write),
+    .io_gpioA_writeEnable(io_gpioA_writeEnable) 
+  );		
+endmodule
\ No newline at end of file