Werner's Miscellanea
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1 | #!/bin/sh |
2 | # |
3 | # m1nor - Flash a file to M1 NOR partition selected by the file name |
4 | # |
5 | # Written 2011 by Werner Almesberger |
6 | # Copyright 2011 by Werner Almesberger |
7 | # |
8 | # This program is free software; you can redistribute it and/or modify |
9 | # it under the terms of the GNU General Public License as published by |
10 | # the Free Software Foundation; either version 2 of the License, or |
11 | # (at your option) any later version. |
12 | # |
13 | |
14 | # |
15 | # According to |
16 | # http://www.milkymist.org/wiki/index.php?title=Flashing_the_Milkymist_One#Flash_Memory_Distribution |
17 | # |
18 | # standby.fpg 0x0000 0000 640k |
19 | # soc-rescue.fpg 0x000A 0000 1536k |
20 | # bios-rescue.bin 0x0022 0000 128k |
21 | # splash-rescue.raw 0x0024 0000 640k |
22 | # flickernoise.fbi(res) 0x002E 0000 4096k |
23 | # soc.fpg 0x006E 0000 1536k alias: system.fpg |
24 | # bios.bin 0x0086 0000 128k |
25 | # splash.raw 0x0088 0000 640k |
26 | # flickernoise.fbi 0x0092 0000 4096k |
27 | # (data) 0x00D2 0000 19328k |
28 | # |
29 | |
30 | classify() |
31 | { |
32 | if [ ! -r "$1" ]; then |
33 | echo "$1: cannot read" 1>&2 |
34 | exit 1 |
35 | fi |
36 | |
37 | b=${1##*/} |
38 | if [ "${b#standby}" != "$b" ]; then off=0x0; ext=.fpg |
39 | elif [ "${b#soc-rescue}" != "$b" ]; then off=0xa0000; ext=.fpg |
40 | elif [ "${b#bios-rescue}" != "$b" ]; then off=0x220000; ext=.bin |
41 | elif [ "${b#splash-rescue}" != "$b" ]; then off=0x240000; ext=.raw |
42 | elif [ "${b#flickernoise-rescue}" != "$b" ]; then off=0x2e0000; ext=.fbi |
43 | elif [ "${b#soc}" != "$b" ]; then off=0x6e0000; ext=.fpg |
44 | elif [ "${b#system}" != "$b" ]; then off=0x6e0000; ext=.fpg |
45 | elif [ "${b#bios}" != "$b" ]; then off=0x860000; ext=.bin |
46 | elif [ "${b#splash}" != "$b" ]; then off=0x880000; ext=.raw |
47 | elif [ "${b#flickernoise}" != "$b" ]; then off=0x920000; ext=.fbi |
48 | elif [ "${b#data}" != "$b" ]; then off=0xd20000; ext= |
49 | else |
50 | echo "$1: unrecognized file name" 1>&2 |
51 | exit 1 |
52 | fi |
53 | |
54 | if [ "$ext" -a "${1%$ext}" = "$1" ]; then |
55 | echo "$1: extension mismatch (expected $ext)" 1>&2 |
56 | exit 1 |
57 | fi |
58 | } |
59 | |
60 | |
61 | if [ -z "$1" ]; then |
62 | echo "usage: $0 filename ..." 1>&2 |
63 | exit 1 |
64 | fi |
65 | |
66 | if [ "$FJMEM_BIT" ]; then |
67 | fjmem=$FJMEM_BIT |
68 | else |
69 | fjmem= |
70 | for n in $HOME/.qi/milkymist/*/fjmem.bit \ |
71 | $HOME/.qi/milkymist/*/*/fjmem.bit \ |
72 | /usr/local/share/milkymist/fjmem.bit \ |
73 | /usr/share/milkymist/fjmem.bit; do |
74 | if [ -r "$n" ]; then |
75 | fjmem="$n" |
76 | break |
77 | fi |
78 | done |
79 | if [ -z "$fjmem" ]; then |
80 | echo "cannot find fjmem.bit (consider setting FJMEM_BIT)" 1>&2 |
81 | exit 1 |
82 | fi |
83 | fi |
84 | |
85 | for n in "$@"; do |
86 | classify "$n" |
87 | done |
88 | |
89 | ( |
90 | cat <<EOF |
91 | cable milkymist |
92 | detect |
93 | instruction CFG_OUT 000100 BYPASS |
94 | instruction CFG_IN 000101 BYPASS |
95 | pld load "$fjmem" |
96 | initbus fjmem opcode=000010 |
97 | frequency 6000000 |
98 | detectflash 0 |
99 | endian big |
100 | EOF |
101 | for n in "$@"; do |
102 | classify "$n" |
103 | if [ "$off" == "0xd20000" ]; then |
104 | echo eraseflash 0xd20000 151 |
105 | fi |
106 | echo flashmem "$off" "$n" noverify |
107 | done |
108 | echo lockflash 0 55 |
109 | echo detectflash 0 |
110 | echo pld reconfigure |
111 | ) | jtag -q || exit |
112 | |
113 | # |
114 | # Fun fact: a direct flashmem-lockflash-pld reconfigure sequence leaves |
115 | # the FPGA in a weird state from which it can't boot out of standby, neither |
116 | # via JTAG (pld load ...) or by pressing the middle button. |
117 | # |
118 | # The only thing that seems to help is to run "detectflash" after the locking. |
119 | # (Tried "peek", "usleep", "pld readreg", ... without success.) |
120 | # |
121 | |
122 | # |
123 | # FIXME: the exit code of "jtag" doesn't indicate whether the session was |
124 | # successful. |
125 | # |
126 | |
127 | first=true |
128 | for n in "$@"; do |
129 | classify "$n" |
130 | echo -n "Flashed $n at offset $off" 1>&2 |
131 | if $first; then |
132 | echo " using $fjmem" 1>&2 |
133 | else |
134 | echo 1>&2 |
135 | fi |
136 | first=false |
137 | done |
138 |
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