Learn ZYNQ (8)

在zed的PS端运行spark（已成功）：

（1）设置uboot为sd卡启动rootfs：

"sdboot=if mmcinfo; then "
                        "run uenvboot; "
                        "echo Copying Linux from SD to RAM... && "
                        "fatload mmc 0 0x3000000 ${kernel_image} && "
                        "fatload mmc 0 0x2A00000 ${devicetree_image} && "
                        "bootm 0x3000000 - 0x2A00000; "
                "fi"

如果想从zImage启动，修改 include/configs/zynq_common.h 的sdboot 内容：

"sdboot=echo (modified) Copying Linux from SD to RAM... && "

"mmcinfo && "

"fatload mmc 0 0x8000 zImage && "

"fatload mmc 0 0x2A00000 ${devicetree_image} && "

"bootz 0x8000 - 0x2A00000"

（2）devicetree.dts修改启动参数：

bootargs = "console=ttyPS0,115200 root=/dev/mmcblk0p2 rw earlyprintk rootfstype=ext4 rootwait devtmpfs.mount=0";

参考网站http://www.wiki.xilinx.com/Ubuntu+on+Zynq

（3）下载Uboot的rootfs镜像：

http://www.wiki.xilinx.com/file/view/zynq-ubuntu-core-12.10-core-armhf-rootfs.tar.xz/423293908/zynq-ubuntu-core-12.10-core-armhf-rootfs.tar.xz

（4）配置ip地址：

vi /etc/network/interfaces

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp

设置网络地址生效：

/etc/init.d/networking restart

自动获取ip地址

dhclient eth0

（5）安装Java

/* wrong 1

apt-get install python-software-properties

遇到add-apt-repository: command not found的错误请参考以下链接。

（http://www.thelinuxguy.nl/how-tos/how-to-fix-sudo-add-apt-repository-command-not-found-linux/）

apt-get install software-properties-common

add-apt-repository ppa:webupd8team/java

apt-get update

apt-get install oracle-java7-installer

*/

/* wrong 2 此方法在后面sbt/sbt assembly会出错

apt-cache search jdk

apt-get install openjdk-7-jdk

vi ~/.bashrc

JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk-armhf/
JRE_HOME=${JAVA_HOME}/jre
export ANDROID_JAVA_HOME=$JAVA_HOME
export CLASSPATH=.:${JAVA_HOME}/lib:$JRE_HOME/lib:$CLASSPATH
export JAVA_PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin
export JAVA_HOME;
export JRE_HOME;
export CLASSPATH;
HOME_BIN=~/bin/
export PATH=${PATH}:${JAVA_PATH}:${HOME_BIN};

方法2：下载jdkforarm

http://www.oracle.com/technetwork/java/javase/downloads/jdk7-arm-downloads-2187468.html

如果需要下载以前的版本：

http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html

JAVA_HOME=/root/jdk1.7.0_60

export PATH=${JAVA_HOME}/bin:$PATH

(6)安装hadoop:

wget http://mirror.nus.edu.sg/apache/hadoop/common/hadoop-2.4.0/hadoop-2.4.0.tar.gz

tar zxvf hadoop-2.4.0.tar.gz

export PATH=/root/hadoop-2.4.0/bin:$PATH

(7)安装Scala

wget http://www.scala-lang.org/files/archive/scala-2.9.3.tgz