tools/bq_boot_eeprom_flash_1

   1 #!/bin/sh
   2 #writes 1 byte to ADDR of flash region (base is 0x0 (ram))
   3 #won't erase, so new value is ANDed with old one
   4
   5 if [ -z "${1}" ] || [ -z "${2}" ]; then
   6         echo "writes 1 byte to ADDR of flash region (base is 0 from data space)" >&2
   7         echo "Usage:" >&2
   8         echo "  ${0} <addr> <val>" >&2
   9         exit
  10 fi
  11
  12 echo "will write 1 byte to data flash!!" >&2
  13 echo "enter to continue, ctrl+c to quit" >&2
  14 read
  15
  16 ADDR=$((${1}))
  17 VAL=$((${2}))
  18
  19 LOW=`printf 0x%02x $((${ADDR} & 0xff ))`
  20 HIGH=`printf 0x%02x $((${ADDR} >> 8 ))`
  21
  22 . ./i2c_config.sh
  23
  24 smb_init
  25 smb_write 5 0xf 3 ${LOW} ${HIGH} ${VAL}
  26 smb_commit