m1/tools/m1nor: flash a file to M1 NOR partition selected by the file name

m1/tools/m1nor

@@ -0,0 +1,91 @@
+#!/bin/sh
+#
+# m1nor - Flash a file to M1 NOR partition selected by the file name
+#
+# Written 2011 by Werner Almesberger
+# Copyright 2011 by Werner Almesberger
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+
+#
+# According to
+# http://www.milkymist.org/wiki/index.php?title=Flashing_the_Milkymist_One#Flash_Memory_Distribution
+#
+# standby.fpg		0x0000 0000	 640k 
+# soc-rescue.fpg	0x000A 0000	1536k
+# bios-rescue.bin	0x0022 0000	 128k
+# splash-rescue.raw	0x0024 0000	 640k
+# flickernoise.fbi(res)	0x002E 0000	4096k
+# soc.fpg		0x006E 0000	1536k
+# bios.bin		0x0086 0000	 128k
+# splash.raw		0x0088 0000	 640k
+# flickernoise.fbi	0x0092 0000	4096k
+# (data)		0x00D2 0000	19328k
+#
+
+if [ -z "$1" ]; then
+	echo "usage: $0 filename" 1>&2
+	exit 1
+fi
+
+if [ ! -r "$1" ]; then
+	echo "cannot read $1" 1>&2
+	exit 1
+fi
+
+n=${1##*/}
+if [ "${n#standby}" != "$n" ]; then		off=0x0;	ext=.fpg
+elif [ "${n#soc-rescue}" != "$n" ]; then	off=0xa0000;	ext=.fpg
+elif [ "${n#bios-rescue}" != "$n" ]; then	off=0x220000;	ext=.bin
+elif [ "${n#splash-rescue}" != "$n" ]; then	off=0x240000;	ext=.raw
+elif [ "${n#flickernoise-rescue}" != "$n" ]; then off=0x2e0000;	ext=.fbi
+elif [ "${n#soc}" != "$n" ]; then		off=0x6e0000;	ext=.fpg
+elif [ "${n#bios}" != "$n" ]; then		off=0x860000;	ext=.bin
+elif [ "${n#splash}" != "$n" ]; then		off=0x880000;	ext=.raw
+elif [ "${n#flickernoise}" != "$n" ]; then	off=0x920000;	ext=.fbi
+elif [ "${n#data}" != "$n" ]; then		off=0xd20000;	ext=
+else
+	echo "unrecognized file name" 1>&2
+	exit 1
+fi
+
+if [ "$ext" -a "${1%$ext}" = "$1" ]; then
+	echo "extension mismatch (expected $ext)" 1>&2
+	exit 1
+fi
+
+if [ "$FJMEM_BIT" ]; then
+	fjmem=$FJMEM_BIT
+else
+	fjmem=
+	for n in $HOME/.qi/milkymist/*/fjmem.bit \
+	    $HOME/.qi/milkymist/*/*/fjmem.bit; do
+		if [ -r "$n" ]; then
+			fjmem="$n"
+			break
+		fi
+	done
+	if [ -z "$fjmem" ]; then
+		echo "cannot find fjmem.bit (consider setting FJMEM_BIT)" 1>&2
+		exit 1
+	fi
+fi
+
+jtag <<EOF
+cable milkymist
+detect
+instruction CFG_OUT  000100 BYPASS
+instruction CFG_IN   000101 BYPASS
+pld load "$fjmem"
+initbus fjmem opcode=000010
+frequency 6000000
+detectflash 0
+endian big
+flashmem "$off" "$1" noverify
+EOF
+
+echo "Flashed $1 at offset $off using $fjmem" 1>&2