U-boot (plus MAC address)¶

SOS: do not use u-boot from Yocto
Use u-boot provided by Rockchip SDK

1. copy board.c to /arch/arm/mach-rockchip

2. file: configs/rk3568_defconfig
   CONFIG_BOOTDELAY=5

Note: Read Docs: /home/SDK_4_19/docs

use these commands to build uboot:

./build.sh device/rockchip/rk356x/BoardConfig-evb2-lp4x-v10.mk rk3566-evb2-lp4x-v10.mk
./build.sh uboot