fix_gps_board.sh

#!/bin/bash

function wait_for_EEBusy_done {
   busy=$((0x80))
   while (( busy == 0x80 ))
   do
      status=$( i2cget -y 1 0x52 0x0E )
      busy=$((status & 0x80))
   done
}

rmmod rtc_rv3028

wait_for_EEBusy_done

# disable auto refresh
register=$( i2cget -y 1 0x52 0x0F )
writeback=$((register | 0x08))
i2cset -y 1 0x52 0x0F $writeback

# enable BSM in level switching mode
register=$( i2cget -y 1 0x52 0x37 )
writeback=$((register | 0x0C))
i2cset -y 1 0x52 0x37 $writeback

# update EEPROM
i2cset -y 1 0x52 0x27 0x00
i2cset -y 1 0x52 0x27 0x11

wait_for_EEBusy_done

# reenable auto refresh
register=$( i2cget -y 1 0x52 0x0F )
writeback=$((register & ~0x08))
i2cset -y 1 0x52 0x0F $writeback

wait_for_EEBusy_done

modprobe rtc_rv3028