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U-Boot loader for Gumstix Duovero.
To install this bootloader, copy the files MLO and u-boot.img to the FAT
partition on an SD card. Normally this is partition 1, but different
partitions can be set with U-Boot environment variables.
This version is patched so that:
* ELF and API features are enabled.
* The default environment is trimmed to just what's needed to boot.
* The saveenv command writes to the file uboot.env on the FAT partition.
* The DTB file name is passed to ubldr using the fdtfile env variable.
The default is omap4-duovero-parlor.dtb for a Parlor expansion board.
ubldr loads the DTB from /boot/dtb/ on the FreeBSD partition.
(Not tested)
* By default, it loads ELF ubldr from file ubldr on the FAT partition
to address 0x88000000, and launches it.
For information about running FreeBSD on Duovero, see
https://wiki.freebsd.org/FreeBSD/arm/Duovero
For general information about U-Boot see WWW: http://www.denx.de/wiki/U-Boot
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