target/linux/sunxi/base-files/lib/sunxi.sh

   1 #!/bin/sh
   2
   3 # defaults
   4 SUNXI_BOARD_NAME="generic sunxi"
   5 SUNXI_BOARD_MODEL="generic sunxi"
   6 SUNXI_ENV_DEV=/dev/mmcblk0
   7
   8 #Helper functions
   9 get_cmdline_opt()
  10 {
  11 cat /proc/cmdline | awk -F$1= '{print $2}' | awk '{print $1}'
  12 }
  13
  14 #Since fw_getenv doesn't work with blockdevs let's make a hack
  15 uboot_getenv()
  16 {
  17     dd if=$SUNXI_ENV_DEV bs=1024 skip=544 count=128 2>dev/null |\strings|grep $1|cut -d"=" -f2
  18 }
  19
  20 #Actual routines go below
  21 sunxi_env_dev()
  22 {
  23     local dev
  24     dev=`get_cmdline_opt root|cut -d"p" -f1`
  25     SUNXI_ENV_DEV=$dev
  26     echo "probing $dev for uboot env data"
  27 }
  28
  29 sunxi_board_detect() {
  30     local board
  31     local model
  32     sunxi_env_dev
  33     [ -e "/tmp/sysinfo/" ] || mkdir -p "/tmp/sysinfo/"
  34     board="`uboot_getenv wrt_board`"
  35     model="`uboot_getenv wrt_model`"
  36     if [ "$board" != "" ]; then
  37         SUNXI_BOARD_NAME="$board"
  38     fi
  39     if [ "$model" != "" ]; then
  40         SUNXI_BOARD_MODEL="$model"
  41     fi
  42     echo "$SUNXI_BOARD_NAME" > /tmp/sysinfo/board_name
  43     echo "$SUNXI_BOARD_MODEL" > /tmp/sysinfo/model
  44     echo "Detected $SUNXI_BOARD_NAME // $SUNXI_BOARD_MODEL"
  45 }