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# boot script for Allwinner SunXi-based devices
# Mainline u-boot v2014.10 introduces a new default environment and
# a new common bootcmd handling for all platforms, which is not fully
# compatible with the old-style environment used by u-boot-sunxi.
# This script therefore needs to check in which environment it
# is running and set some variables accordingly.
# On u-boot-sunxi, this script assumes that ${device} and ${partition}
# are set.
# The new-style environment predefines ${boot_targets}, the old-style
# environment does not.
if test -n "${boot_targets}"
then
echo "Mainline u-boot / new-style environment detected."
# Mainline u-boot v2014.10 uses ${devtype}, ${devnum} and
# ${bootpart} where u-boot-sunxi uses ${device} and ${partition}.
if test -z "${device}"; then setenv device "${devtype}"; fi
if test -z "${partition}"; then setenv partition "${devnum}:${bootpart}"; fi
else
echo "U-boot-sunxi / old-style environment detected."
# U-boot-sunxi does not predefine kernel_addr_r, fdt_addr_r and
# ramdisk_addr_r, so they have to be manually set. Use the values
# from mainline u-boot v2014.10, except for ramdisk_addr_r,
# which is set to 0x44300000 to allow for initrds larger than
# 13MB on u-boot-sunxi.
setenv kernel_addr_r 0x42000000
setenv fdt_addr_r 0x43000000
setenv ramdisk_addr_r 0x44300000
fi
if test -n "${console}"; then
setenv bootargs "${bootargs} console=${console}"
fi
setenv bootargs ${bootargs} @@LINUX_KERNEL_CMDLINE@@
@@UBOOT_ENV_EXTRA@@
image_locations='/boot/ /'
kvers='@@KERNEL_VERSION@@'
for pathprefix in ${image_locations}
do
if test -e ${device} ${partition} ${pathprefix}vmlinuz-${kvers}
then
load ${device} ${partition} ${kernel_addr_r} ${pathprefix}vmlinuz-${kvers} \
&& load ${device} ${partition} ${fdt_addr_r} ${pathprefix}dtb-${kvers} \
&& load ${device} ${partition} ${ramdisk_addr_r} ${pathprefix}initrd.img-${kvers} \
&& echo "Booting Debian ${kvers} from ${device} ${partition}..." \
&& bootz ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r}
fi
done
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