build u-boot for riot board

Apr 15, 2015

1. Get u-boot source

git clone https://github.com/Freescale/u-boot-fslc.git

2. make & build

$cd u-boot-fslc
$export ARCH=arm 
$export CROSS_COMPILE=arm-linux-gnueabihf-
$make riotboard_defconfig 
$make
$ls ls -l u-boot.*
    -rw-rw-r-- 1 jordon jordon 331492 Dec  7 05:44 u-boot.bin
	-rw-rw-r-- 1 jordon jordon 334848 Dec  7 05:44 u-boot.imx
	-rw-rw-r-- 1 jordon jordon   1286 Dec  7 05:44 u-boot.lds
	-rw-rw-r-- 1 jordon jordon 317244 Dec  7 05:44 u-boot.map
	-rw-rw-r-- 1 jordon jordon 994618 Dec  7 05:44 u-boot.srec