am335x
am335x uboot guide http://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Foundational_Components_U-Boot.html#u-boot-user-s-guide
am335x port config https://processors.wiki.ti.com/index.php/Sitara_Linux_Training:_UBoot_Board_Port#Configure_your_Development_Environment
am335x kernel guide http://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Foundational_Components_Kernel_Users_Guide.html