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|
# 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 @@BOOT_CMD@@ 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 "@@LINUX_KERNEL_CMDLINE_DEFAULTS@@ ${bootargs} @@LINUX_KERNEL_CMDLINE@@"
@@UBOOT_ENV_EXTRA@@
if test -z "${fk_kvers}"; then
setenv fk_kvers '@@KERNEL_VERSION@@'
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 ${distro_bootpart}
fi
@@UBOOT_PREBOOT_EXTRA@@
if test -z "${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}..." \
&& @@BOOT_CMD@@ ${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}..." \
&& @@BOOT_CMD@@ ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r}
fi
done
|
