#!/bin/rcrfork n fn fatal{ echo >[1=2] $* exit fatal} fn verbose{ if(~ $#flagv 1) echo >[1=2] $*} bind -b '#F' /dev || fatal cant bind flash devicecd /dev/flash || fatal cant cd to /dev/flash erasesz=`{awk 'NR==2 {sub(/0x0+/, "", $3); print $3}' < flashctl}totsz=4m # 4mb; adjust to tasteplan9ini=`{pxeof $sysname}kernel=`{ndb/query sys $sysname bootf} flagfmt='v,I,W,K,i plan9ini,k kernel,e erasesz,t totsz'args=''if(! ifs=() eval `{aux/getflags $*}){ aux/usage exit usage} erasesz =`{aux/number -f %x $erasesz} || exits numtotsz =`{aux/number -f %x $totsz} || exits numblsz=$erasesz eraseblocks=`{echo ' 16i 10o ' $erasesz ' sa ' $totsz ' sb lb la 1 - + la / 2+ sn 0si [100000 la li *+p li 1 + si li ln >y]sy lyx ' | dc}kblk=`{echo $#eraseblocks 2 - p | dc} if(! test -f $plan9ini>[2=]){ echo >[1=2] plan9.ini $plan9ini not found exit check}if(! test -f $kernel>[2=]){ echo >[1=2] kernel $kernel not found exit check}if(~ $#eraseblocks 0 || ~ $"eraseblocks *unimplemented* || test $#eraseblocks -gt 64){ echo >[1=2] wierd number of pages to clear $#pages exit check} if(~ $#flagW^$#flagI^$#flagK 000 111){ flagW=1; flagI=1; flagK=1}if not{ e=() if(~ $#flagW 1) e = ($e $eraseblocks(1) if(~ $#flagI 1) e = ($e $eraseblocks(2) if(~ $#flagK 1) e = ($e $eraseblocks(3-)} echo erasing $#eraseblocks `{echo 16i $erasesz 400 / p | dc}^k blocksverbose eraseblocks $eraseblocks for(i in $eraseblocks){ verbose erase 0x$i if(! echo erase 0x$i > flashctl){ echo kwflashprep: erase block 0x$i exit erase }} fn kfill { cat $kernel /dev/zero | dd -quiet 1 -conv sync -bs 8192}fn α { echo 16 i 10 o $1 $erasesz $2 '*' + p | dc}x=`{echo $kblk sk 16i $erasesz 2000 / lk '*' p|dc} ~ $#flagW 1 && {auth/wrkey || exit wrkey}~ $#flagI 1 && {dd -of flash -oseek 9 -count 1 -if $plan9ini -bs 0x$erasesz -conv sync || exit ddini}~ $#flagK 1 && {dd -of flash -oseek 10 -count $x -if <{kfill} -obs 0x$erasesz -ibs 8192 || exit ddkern} # double check for ecc errorsdd -if flash -iseek 8 -count $#eraseblocks -bs 0x$erasesz >/dev/null || exit ecc errors echo setenv bootcmd \ ''''nand read 0x1000 0x`{α 100000 1} '0x200;' \ nand read 0x800000 0x`{α 100000 2} '0x300000;' go 0x800000'''' {echo add nvram 0x`{α 100000 0} 0x`{α 100000 1}echo add plan9.ini 0x`{α 100000 1} 0x`{α 100000 2}echo add kernel 0x`{α 100000 2} 0x`{echo 16i 10o $totsz $erasesz 2 '*' - 100000 + p|dc}}>flashctl # nvram 0x00100000 0x00120000 0x00020000 0x00000800# plan9.ini 0x00120000 0x00140000 0x00020000 0x00000800# kernel 0x00140000 0x004c0000 0x00020000 0x00000800
#!/bin/rc
rfork n
fn fatal{
echo >[1=2] $*
exit fatal
}
fn verbose{
if(~ $#flagv 1)
echo >[1=2] $*
}
bind -b '#F' /dev || fatal cant bind flash device
cd /dev/flash || fatal cant cd to /dev/flash
erasesz=`{awk 'NR==2 {sub(/0x0+/, "", $3); print $3}' < flashctl}
totsz=4m # 4mb; adjust to taste
plan9ini=`{pxeof $sysname}
kernel=`{ndb/query sys $sysname bootf}
flagfmt='v,I,W,K,i plan9ini,k kernel,e erasesz,t totsz'
args=''
if(! ifs=() eval `{aux/getflags $*}){
aux/usage
exit usage
}
erasesz =`{aux/number -f %x $erasesz} || exits num
totsz =`{aux/number -f %x $totsz} || exits num
blsz=$erasesz
eraseblocks=`{echo '
16i 10o
' $erasesz ' sa
' $totsz ' sb
lb la 1 - + la / 2+
sn 0si
[100000 la li *+p li 1 + si li ln >y]sy
lyx
' | dc}
kblk=`{echo $#eraseblocks 2 - p | dc}
if(! test -f $plan9ini>[2=]){
echo >[1=2] plan9.ini $plan9ini not found
exit check
}
if(! test -f $kernel>[2=]){
echo >[1=2] kernel $kernel not found
exit check
}
if(~ $#eraseblocks 0 || ~ $"eraseblocks *unimplemented* || test $#eraseblocks -gt 64){
echo >[1=2] wierd number of pages to clear $#pages
exit check
}
if(~ $#flagW^$#flagI^$#flagK 000 111){
flagW=1; flagI=1; flagK=1
}
if not{
e=()
if(~ $#flagW 1)
e = ($e $eraseblocks(1)
if(~ $#flagI 1)
e = ($e $eraseblocks(2)
if(~ $#flagK 1)
e = ($e $eraseblocks(3-)
}
echo erasing $#eraseblocks `{echo 16i $erasesz 400 / p | dc}^k blocks
verbose eraseblocks $eraseblocks
for(i in $eraseblocks){
verbose erase 0x$i
if(! echo erase 0x$i > flashctl){
echo kwflashprep: erase block 0x$i
exit erase
}
}
fn kfill {
cat $kernel /dev/zero | dd -quiet 1 -conv sync -bs 8192
}
fn α {
echo 16 i 10 o $1 $erasesz $2 '*' + p | dc
}
x=`{echo $kblk sk 16i $erasesz 2000 / lk '*' p|dc}
~ $#flagW 1 && {auth/wrkey || exit wrkey}
~ $#flagI 1 && {dd -of flash -oseek 9 -count 1 -if $plan9ini -bs 0x$erasesz -conv sync || exit ddini}
~ $#flagK 1 && {dd -of flash -oseek 10 -count $x -if <{kfill} -obs 0x$erasesz -ibs 8192 || exit ddkern}
# double check for ecc errors
dd -if flash -iseek 8 -count $#eraseblocks -bs 0x$erasesz >/dev/null || exit ecc errors
echo setenv bootcmd \
''''nand read 0x1000 0x`{α 100000 1} '0x200;' \
nand read 0x800000 0x`{α 100000 2} '0x300000;' go 0x800000''''
{
echo add nvram 0x`{α 100000 0} 0x`{α 100000 1}
echo add plan9.ini 0x`{α 100000 1} 0x`{α 100000 2}
echo add kernel 0x`{α 100000 2} 0x`{echo 16i 10o $totsz $erasesz 2 '*' - 100000 + p|dc}
}>flashctl
# nvram 0x00100000 0x00120000 0x00020000 0x00000800
# plan9.ini 0x00120000 0x00140000 0x00020000 0x00000800
# kernel 0x00140000 0x004c0000 0x00020000 0x00000800