Use GPIO19 which is wired to the uSOM phy reset signal in order to reset the uSOM's 1512 Gigabit Ethernet phy. This GPIO is valid on ClearFog rev 2.1 and newer. Taken from SolidRun's specialised u-boot, see https://github.com/SolidRun/u-boot-armada38x/commit/f906e3df172e07ac82cdd87b278d7896949262ea Signed-off-by: Patrick Wildt <patrick@blueri.se> Signed-off-by: Stefan Roese <sr@denx.de>
Update from original Marvell U-Boot to mainline U-Boot: ------------------------------------------------------- Generate the U-Boot image with these commands: $ make clearfog_defconfig $ make The resulting image including the SPL binary with the full DDR setup is "u-boot-spl.kwb". Now all you need to do is copy this image on a SD card. For example with this command: $ sudo dd if=u-boot-spl.kwb of=/dev/sdX bs=512 seek=1 Please use the correct device node for your setup instead of "/dev/sdX" here!