1Update from original Marvell U-Boot to mainline U-Boot: 2------------------------------------------------------- 3 4Generate the U-Boot image with these commands: 5 6$ make clearfog_defconfig 7$ make 8 9The resulting image including the SPL binary with the 10full DDR setup is "u-boot-spl.kwb". 11 12Now all you need to do is copy this image on a SD card. 13For example with this command: 14 15$ sudo dd if=u-boot-spl.kwb of=/dev/sdX bs=512 seek=1 16 17Please use the correct device node for your setup instead 18of "/dev/sdX" here! 19 20Boot from UART: 21--------------- 22 23Connect the on-board micro-USB (CF Pro: CON11, CF Base: CON5) 24to your host. 25 26Set the SW1 DIP switches to UART boot (0: OFF, 1: ON): 27 28 ClearFog Base: 01001 29 ClearFog Pro: 11110 30 31Run the following command to initiate U-Boot download: 32 33 ./tools/kwboot -b u-boot-spl.kwb /dev/ttyUSBX 34 35Use the correct UART device node for /dev/ttyUSBX. 36 37When download finishes start your favorite terminal emulator 38on /dev/ttyUSBX. 39