| #!/bin/sh |
| |
| # enable VCS rail with OPERATION |
| # A side |
| i2cset -y 4 0x70 0x00 0x01 b |
| i2cset -y 4 0x70 0x02 0x1A b #respond to OPERATION |
| i2cset -y 4 0x70 0x00 0x00 b |
| # B side |
| i2cset -y 5 0x70 0x00 0x01 b |
| i2cset -y 5 0x70 0x02 0x1A b #respond to OPERATION |
| i2cset -y 5 0x70 0x00 0x00 b |
| |
| # unbind ucd driver to permit i2cset |
| ucd_retries=5 |
| ucd= |
| |
| ucdpath="/sys/bus/i2c/drivers/ucd9000" |
| if [ -e $ucdpath ] |
| then |
| ucd=`ls -1 $ucdpath | grep 64` |
| if [ -n "$ucd" ] |
| then |
| echo $ucd > $ucdpath/unbind |
| fi |
| fi |
| |
| |
| # re-enable VCS in system PGOOD |
| sleep 1 |
| #SYSTEM_RESET_CONFIG |
| i2cset -y 11 0x64 0xD2 0x09 0xFF 0xFF 0x27 0x0A 0x00 0x06 0x00 0x00 0x02 i |
| |
| # re-bind ucd driver only if we unbound it (i.e. ucd has been set with a value) |
| if [ -e $ucdpath -a -n "$ucd" ]; then |
| j=0 |
| until [ $j -ge $ucd_retries ] || [ -e $ucdpath/$ucd ]; do |
| j=$((j+1)) |
| echo $ucd > $ucdpath/bind || ret=$? |
| if [ $j -gt 1 ]; then |
| echo "rebinding UCD driver. Retry number $j" |
| sleep 1 |
| fi |
| done |
| if [ ! -e $ucdpath/$ucd ]; then exit $ret; fi |
| fi |