1 Update from original Marvell U-Boot to mainline U-Boot: 2 ------------------------------------------------------- 3 4 Generate the U-Boot image with these commands: 5 6 $ make helios4_defconfig 7 $ make 8 9 The resulting image including the SPL binary with the 10 full DDR setup is "u-boot-spl.kwb". 11 12 Now all you need to do is copy this image on a SD card. 13 For example with this command: 14 15 $ sudo dd if=u-boot-spl.kwb of=/dev/sdX bs=512 seek=1 16 17 Please use the correct device node for your setup instead 18 of "/dev/sdX" here! 19 20 Boot selection: 21 --------------- 22 23 Before powering up the board, boot selection should be done via the SW1 dip 24 switch (0: OFF, 1: ON): 25 26 - SPI: 00010 27 - SD/eMMC: 00111 28 - SATA1: 11100 29 - UART: 11110 30 31 Boot from UART: 32 --------------- 33 34 Connect the on-board micro-USB (CF Pro: CON11, CF Base: CON5) 35 to your host. 36 37 Set the SW1 DIP switches to UART boot (see above). 38 39 Run the following command to initiate U-Boot download: 40 41 ./tools/kwboot -p -b u-boot-spl.kwb /dev/ttyUSBX 42 43 Use the correct UART device node for /dev/ttyUSBX. 44 45 When download finishes start your favorite terminal emulator 46 on /dev/ttyUSBX. 47
