pmaports/device/u-boot-librem5dev/README.txt

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WandBoard
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- ROM loads boot loader from raw MMC sectors at fixed address
- NOTE: 1st partition needs to start after boot loader
- Install u-boot with:
dd if=wandboard/SPL of=/dev/mmcblk0 bs=1k seek=1
dd if=wandboard/u-boot.img of=/dev/mmcblk0 bs=1k seek=69
sync
(Note - the SD card node may vary, so adjust this as needed).
- Insert the SD card into the slot located in the bottom of the board
(same side as the mx6 processor)
BeagleBoard
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- ROM looks for 1st partition with FAT, and loads MLO from it
- NOTE: MLO needs to be the first file created on this partition
- Install u-boot with:
cp am335x_boneblack/{MLO,u-boot.img} /media/mmcblk0p1/
Sunxi (Cubie* etc)
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- ROM loads boot loader from SD-CARD sectors at fixed address
- Install u-boot with:
sudo dd if=<board>/u-boot-sunxi-with-spl.bin of=/dev/sda bs=1024 seek=8