diff options
Diffstat (limited to 'host/apps/omap_debug/write-eeprom.sh')
| -rwxr-xr-x | host/apps/omap_debug/write-eeprom.sh | 92 | 
1 files changed, 92 insertions, 0 deletions
diff --git a/host/apps/omap_debug/write-eeprom.sh b/host/apps/omap_debug/write-eeprom.sh new file mode 100755 index 000000000..301b06f07 --- /dev/null +++ b/host/apps/omap_debug/write-eeprom.sh @@ -0,0 +1,92 @@ +#!/bin/bash + +if [ $# -ne 3 ] && [ $# -ne 5 ]; +then +	echo "Usage:" +	echo "" +	echo "writeprom.sh deviceid rev fab_rev [envvar envsetting]" +	echo	 +	echo " deviceid   - expansion board device number from table:" +	echo  +	echo "   Summit     0x01" +	echo "   Tobi       0x02" +	echo "   Tobi Duo   0x03" +	echo "   Palo35     0x04" +	echo "   Palo43     0x05" +	echo "   Chestnut43 0x06" +	echo "   Pinto      0x07" +	echo +	echo " rev          - board revision (e.g. 0x00)" +	echo " fab_rev      - revision marking from pcb (e.g. R2411)" +	echo " envvar       - optional u-boot env variable name" +	echo "                (e.g. dvimode)" +	echo " envsetting   - optional u-boot env variable setting" +	echo "                (e.g. 1024x768MR-16@60)" +	exit 1 +fi + +fabrevision=$3 +if [ ${#fabrevision} -ge 8 ]; then +	echo "Error: fab revision string must less than 8 characters" +	exit 1 +fi + +envvar=$4 +if [ ${#envar} -ge 16 ]; then +	echo "Error: environment variable name string must less than 16 characters" +	exit 1 +fi + +envsetting=$5 +if [ ${#ensetting} -ge 64 ]; then +	echo "Error: environment setting string must less than 64 characters" +	exit 1 +fi + +bus=3 +device=0x51 +vendorid=0x03 + +i2cset -y $bus $device 0x00 0x00 +i2cset -y $bus $device 0x01 $vendorid +i2cset -y $bus $device 0x02 0x00 +i2cset -y $bus $device 0x03 $1 +i2cset -y $bus $device 0x04 $2 +i2cset -y $bus $device 0x05 00 + +let i=6 +hexdumpargs="'${#fabrevision}/1 \"0x%02x \"'" +command="echo -n \"$fabrevision\" | hexdump -e $hexdumpargs" +hex=$(eval $command) +for character in $hex; do +	i2cset -y $bus $device $i $character +	let i=$i+1 +done +i2cset -y $bus $device $i 0x00 + +if [ $# -eq 5 ] +then +	i2cset -y $bus $device 0x05 0x01 + +	let i=14 +	hexdumpargs="'${#envvar}/1 \"0x%02x \"'" +	command="echo -n \"$envvar\" | hexdump -e $hexdumpargs" +	hex=$(eval $command) +	for character in $hex; do +		i2cset -y $bus $device $i $character +		let i=$i+1 +	done + 	i2cset -y $bus $device $i 0x00 + +	let i=30 +	hexdumpargs="'${#envsetting}/1 \"0x%02x \"'" +	command="echo -n \"$envsetting\" | hexdump -e $hexdumpargs" +	hex=$(eval $command) +	for character in $hex; do +		i2cset -y $bus $device $i $character +		let i=$i+1 +	done	  +	i2cset -y $bus $device $i 0x00 +fi + +  | 
