openwrtv3/target/linux/imx6/image/bootscript-ventana

echo "Gateworks Ventana OpenWrt Boot script v1.00"

# set some defaults
# set some defaults
test -n "$fs"    || fs=ext2
test -n "$disk"  || disk=0
setenv nextcon 0
setenv bootargs console=${console},${baudrate}
setenv loadaddr 10800000
setenv fdt_addr 18000000

# detect displays in the following priority: HDMI, LVDS
# setenv display to override detection for a single display
# or setenv video if you want multiple displays
if test -n "$video" ; then
  echo "using video config from env: $video"
  setenv bootargs "${bootargs}" "${video}"
else
  if test -n "$display" ; then
    echo "using display from env: $display"
  elif test -n "$panel" ; then
    echo "using display from env: $panel"
    setenv display "$panel"
  else
    echo "Detecting displays..."
    i2c dev 2
    if hdmidet ; then
	echo "  HDMI detected"
	setenv display "HDMI"
    elif i2c probe 0x04 ; then
	echo "  Freescale MXC-LVDS1 detected"
	setenv display "LVDS"
    elif i2c probe 0x14 ; then
	echo "  DLC800FIGT3 detected"
	setenv display "LVDS"
    elif i2c probe 0x38 ; then
	echo "  DLC700JMGT4 detected"
	setenv display "LVDS"
    fi
  fi

  # configure displays
  echo "Configuring kernel bootargs for display(s): $display"
  for p in ${display}; do
    if itest.s "x${p}" == "xHannstar-XGA" ; then
	setenv ptype "LVDS"
    elif itest.s "x${p}" == "xDLC700JMGT4" ; then
	setenv ptype "LVDS"
    elif itest.s "x${p}" == "xDLC800FIGT3" ; then
	setenv ptype "LVDS"
    elif itest.s "x${p}" == "xLVDS" ; then
	setenv ptype "LVDS"
    elif itest.s "x${p}" == "xHDMI" ; then
	setenv ptype "HDMI"
	test -n "$hdmi" || hdmi=1080p
	if itest.s "x${hdmi}" == "x1080p" ; then
		setenv hdmi "1920x1080M@60"
	elif itest.s "x${hdmi}" == "x720p" ; then
		setenv hdmi "1280x720M@60"
	elif itest.s "x${hdmi}" == "x480p" ; then
		setenv hdmi "720x480M@60"
	fi
    else
        echo "${p} not supported"
    fi

    if itest.s "x${ptype}" == "xLVDS" ; then
	echo "  mxcfb${nextcon}: LVDS ($p)"
	setenv bootargs "${bootargs}" video=mxcfb${nextcon}:dev=ldb,bpp=32,if=RGB666
	setexpr nextcon $nextcon + 1
    elif itest.s "x${ptype}" == "xHDMI" ; then
	echo "  mxcfb${nextcon}: HDMI ($hdmi)"
	setenv bootargs "${bootargs}" video=mxcfb${nextcon}:dev=hdmi,bpp=32,${hdmi},if=RGB24
	setexpr nextcon $nextcon + 1
    fi

  done

  # disable remaining mxcfb devices
  while test "4" -ne $nextcon ; do
	setenv bootargs "${bootargs}" video=mxcfb${nextcon}:off
	setexpr nextcon $nextcon + 1
  done
fi

# detect dtype and bootdev by looking for kernel on media the bootloader
# has mounted (in order of preference: usb/mmc/sata)
#
# This assumes the bootloader has already started the respective subsystem
# or mounted the filesystem if appropriate to get to this bootscript
#
# To Speed up boot set dtype manually
if test -n "$dtype" ; then
	echo "Using dtype from env: $dtype"
else
	echo "Detecting boot device (dtype)..."
	if ${fs}load usb ${disk}:1 ${loadaddr} ${bootdir}/uImage ; then
		dtype=usb
	elif ${fs}load mmc ${disk}:1 ${loadaddr} ${bootdir}/uImage ; then
		dtype=mmc
	elif ${fs}load sata ${disk}:1 ${loadaddr} ${bootdir}/uImage ; then
		dtype=sata
	elif ubifsload ${loadaddr} ${bootdir}/uImage ; then
		dtype=nand
	fi
	echo "detected dtype:$dtype"
fi
if test -n "$bootdev" ; then
	echo "Using bootdev from env: $bootdev"
else
	if itest.s "x${dtype}" == "xmmc" ; then
		bootdev=mmcblk0
	else
		bootdev=sda
	fi
fi

if itest.s "x${dtype}" == "xnand" ; then
	echo "Booting from NAND..."
	# fix partition name
	#  OpenWrt kernel bug prevents partition name of 'rootfs' from booting
	#  instead name the partition ubi which is what is looked for by
	#  procd sysupgrade
	mtdparts del rootfs && mtdparts add nand0 - ubi
	echo "mtdparts:${mtdparts}"
	setenv fsload ubifsload
	setenv root "ubi0:ubi ubi.mtd=2 rootfstype=squashfs,ubifs"
else
	echo "Booting from block device ${bootdev}..."
	setenv fsload "${fs}load ${dtype} ${disk}:1"
	setenv root "root=/dev/${bootdev}"
fi

setenv bootargs "${bootargs}" "${root}" "${extra}"
if ${fsload} ${loadaddr} ${bootdir}/uImage; then
	if ${fsload} ${fdt_addr} ${bootdir}/${fdt_file}; then
		echo Loaded DTB from ${bootdir}/${fdt_file}
		bootm ${loadaddr} - ${fdt_addr}
	elif ${fsload} ${fdt_addr} ${bootdir}/${fdt_file1}; then
		echo Loaded DTB from ${bootdir}/${fdt_file1}
		bootm ${loadaddr} - ${fdt_addr}
	elif ${fsload} ${fdt_addr} ${bootdir}/${fdt_file2}; then
		echo Loaded DTB from ${bootdir}/${fdt_file2}
		bootm ${loadaddr} - ${fdt_addr}
	else
		echo "Error loading device-tree"
	fi
else
	echo "Error loading kernel image"
fi