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U-Boot provides standard variables for load addresses, and filesystem-agnostic load-commands. Furthermore thanks to distro-boot, the device and partition from which the system boots is known. The new boot-script makes use of all this information. Tested on the only board that uses this boot-script: Clearfog Pro Signed-off-by: Josua Mayer <josua.mayer97@gmail.com>
27 lines
984 B
Plaintext
27 lines
984 B
Plaintext
# Standard Boot-Script
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# use only well-known variable names provided by U-Boot Distro boot
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# This script assumes that there is a boot partition,
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# and that the root partition is always the next one.
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# Override DeviceTree for Clearfog Base
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# removed once U-Boot is able to detect the board variant.
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setenv fdtfile armada-388-clearfog-base.dtb
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# generate bootargs for rootfs on MMC
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if test "${devtype}" = "mmc"; then
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setexpr lede_rootpart ${distro_bootpart} + 1
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setenv bootargs ${bootargs} root=/dev/mmcblk${devnum}p${lede_rootpart} rootfstype=auto rootwait
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fi
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# here one could add logic for other rootfs device types such as scsi and usb
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# add console= option to bootargs, if any
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if test -n "${console}"; then
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setenv bootargs ${bootargs} console=${console}
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fi
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echo "Booting Linux with ${bootargs}"
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load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${fdtfile}
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load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} zImage
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bootz ${kernel_addr_r} - ${fdt_addr_r}
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