boot.scr

'VBdu|*
       5ldboot script
                     -
#
# flash-kernel: bootscr.uboot-generic
#

# Bootscript using the new unified bootcmd handling
# introduced with u-boot v2014.10
#
# Expects to be called with the following environment variables set:
#
#  devtype              e.g. mmc/scsi etc
#  devnum               The device number of the given type
#  bootpart             The partition containing the boot files
#  distro_bootpart      The partition containing the boot files
#                       (introduced in u-boot mainline 2016.01)
#  prefix               Prefix within the boot partiion to the boot files
#  kernel_addr_r        Address to load the kernel to
#  fdt_addr_r           Address to load the FDT to
#  ramdisk_addr_r       Address to load the initrd to.
#
# The uboot must support the booti and generic filesystem load commands.

# Workaround lack of baudrate included with console on various iMX
# systems (e.g. wandboard, cubox-i, hummingboard)
if test "${console}" = "ttymxc0" && test -n "${baudrate}"; then
  setenv console "${console},${baudrate}"
fi

if test -n "${console}"; then
  setenv bootargs "${bootargs} console=${console}"
fi

setenv bootargs "ro no_console_suspend cma=512M pci=nomsi ${bootargs} console=ttymxc0,115200 console=tty1"

# setenv bootpart "1"
# setenv prefix "/"
# setenv kernel_addr_r "0x40480000"
# setenv fdt_addr_r "0x50000000"
# setenv ramdisk_addr_r "0x51000000"

if test -z "${fk_kvers}"; then
   setenv fk_kvers '6.1.0-9-reform2-arm64'
fi

# These two blocks should be the same apart from the use of
# ${fk_kvers} in the first, the syntax supported by u-boot does not
# lend itself to removing this duplication.

if test -n "${fdtfile}"; then
   setenv fdtpath dtbs/${fk_kvers}/${fdtfile}
else
   setenv fdtpath dtb-${fk_kvers}
fi

if test -z "${distro_bootpart}"; then
  setenv partition ${bootpart}
else
  setenv partition ${distro_bootpart}
fi


# place here any u-boot commands to be executed before boot

if test -z "${fk_image_locations}"; then
  setenv fk_image_locations ${prefix}
fi

for pathprefix in ${fk_image_locations}
do
  if test -e ${devtype} ${devnum}:${partition} ${pathprefix}vmlinuz-${fk_kvers}
  then
    load ${devtype} ${devnum}:${partition} ${kernel_addr_r} ${pathprefix}vmlinuz-${fk_kvers} \
    && load ${devtype} ${devnum}:${partition} ${fdt_addr_r} ${pathprefix}${fdtpath} \
    && load ${devtype} ${devnum}:${partition} ${ramdisk_addr_r} ${pathprefix}initrd.img-${fk_kvers} \
    && echo "Booting Debian ${fk_kvers} from ${devtype} ${devnum}:${partition}..." \
    && booti ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r}
  fi
done

for pathprefix in ${fk_image_locations}
do
  if test -e ${devtype} ${devnum}:${partition} ${pathprefix}vmlinuz
  then
    load ${devtype} ${devnum}:${partition} ${kernel_addr_r} ${pathprefix}vmlinuz \
    && load ${devtype} ${devnum}:${partition} ${fdt_addr_r} ${pathprefix}dtb \
    && load ${devtype} ${devnum}:${partition} ${ramdisk_addr_r} ${pathprefix}initrd.img \
    && echo "Booting Debian from ${devtype} ${devnum}:${partition}..." \
    && booti ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r}
  fi
done