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24 lines
1.1 KiB
Plaintext
24 lines
1.1 KiB
Plaintext
U-Boot loader for BeagleBone and BeagleBone Black.
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To install this bootloader, copy the files MLO and bb-uboot.img to the FAT
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partition on an SD card or the eMMC. Normally this is partition 1, but
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different partitions can be set with U-Boot environment variables.
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This version is patched so that:
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* ELF and API features are enabled.
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* The default environment is trimmed to just what's needed to boot.
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* The saveenv command writes to the file uboot.env on the FAT partition.
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* The DTB file name is chosen based on the board model and passed to ubldr
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using the fdtfile env variable. ubldr loads the DTB from /boot/dtb/ on
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the FreeBSD partition.
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* By default, it loads ELF ubldr from file bbubldr on the FAT partition
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to address 0x88000000, and launches it.
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Note: prefixing the boot files with 'bb' allows building
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images with boot bits for more than one board.
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For information about running FreeBSD on BeagleBone or BeagleBone Black, see
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https://wiki.freebsd.org/FreeBSD/arm/BeagleBone
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For general information about U-Boot see WWW: http://www.denx.de/wiki/U-Boot
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