[经验] 【学习Sitara™ AM335x】- Beaglebone环境的搭建方法

chenzhufly 2012-11-14 18:56 楼主

Basic Requirements

ARM Cross Compiler

Ubuntu (11.04 (Natty Narwhal) minimum): sudo apt-get install gcc-arm-linux-gnueabi
Linaro: https://launchpad.net/linaro-toolchain-binaries

Bootloader

Das U-Boot – the Universal Boot Loader http://www.denx.de/wiki/U-Boot
Source – http://git.denx.de/?p=u-boot.git;a=summary

Linux Kernel

Linus's Mainline tree: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=summary
Linux omap tree: http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap.git
Arago Project TI Staging tree: http://arago-project.org/git/projects/?p=linux-am33x.git;a=shortlog;h=refs/heads/v3.2-staging

ARM based rootfs

Debian Squeeze: http://www.debian.org/

Bootloader

Das U-Boot – the Universal Boot Loader http://www.denx.de/wiki/U-Boot

U-Boot Download:
Download U-Boot via git:

git clone git://git.denx.de/u-boot.git
cd u-boot/
git checkout v2012.10 -b tmp

U-Boot Patches:

wget https://raw.github.com/RobertCNelson/Bootloader-Builder/master/patches/v2012.10/0001-enable-bootz-support.patch
wget https://raw.github.com/RobertCNelson/Bootloader-Builder/master/patches/v2012.10/0002-am33xx-Enable-DDR3-for-DDR3-version-of-beaglebone.patch

patch -p1 < 0001-enable-bootz-support.patch
patch -p1 < 0002-am33xx-Enable-DDR3-for-DDR3-version-of-beaglebone.patch

U-Boot Configure and Build:
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- distclean
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- am335x_evm_config
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-
Linux Kernel

Linux Build Script:

git clone git://github.com/RobertCNelson/linux-dev.git
cd linux-dev/
git checkout origin/am33x-v3.2 -b am33x-v3.2

For Mainline v3.6.x (in development, limited cape support)

git checkout origin/am33x-v3.6 -b am33x-v3.6

Run Build Script:

./build_kernel.sh

The kernel zImage and modules will be under the deploy directory.

Debian Squeeze 6.0.6 (armel based) Root File System

Default User: debian
Password: temppwd

Root User: root
Root Password: root

wget -c http://rcn-ee.net/deb/minfs/squeeze/debian-6.0.6-minimal-armel-2012-10-22.tar.xz

verify the image with:

md5sum debian-6.0.6-minimal-armel-2012-10-22.tar.xz
97a4717d95c72d3c9d931a39a3aa58c6 debian-6.0.6-minimal-armel-2012-10-22.tar.xz

Extract Image:

tar xJf debian-6.0.6-minimal-armel-2012-10-22.tar.xz

Debian Wheezy (snapshot) (armhf based) Root File System

Default User: debian
Password: temppwd

Root User: root
Root Password: root

wget -c http://rcn-ee.net/deb/minfs/wheezy/debian-wheezy-minimal-armhf-2012-10-22.tar.xz

verify the image with:

md5sum debian-wheezy-minimal-armhf-2012-10-22.tar.xz
ff409aa856b4b2ab86a6c8126a349926 debian-wheezy-minimal-armhf-2012-10-22.tar.xz

Extract Image:

tar xJf debian-wheezy-minimal-armhf-2012-10-22.tar.xz

Ubuntu 12.10 (Quantal) (armhf based) Root File System

Default User: ubuntu
Password: temppwd

wget -c http://rcn-ee.net/deb/minfs/quantal/ubuntu-12.10-minimal-armhf-2012-10-22.tar.xz

verify the image with:

md5sum ubuntu-12.10-minimal-armhf-2012-10-22.tar.xz
442c3a26af8e80ecf44ea470f5dcacd5 ubuntu-12.10-minimal-armhf-2012-10-22.tar.xz

Extract Image:

tar xJf ubuntu-12.10-minimal-armhf-2012-10-22.tar.xz

Setup microSD card

For these instruction, we are assuming: DISK=/dev/mmcblk0, "sudo fdisk -l" is useful for determining the device id..

export DISK=/dev/mmcblk0

Erase microSD card:

sudo parted --script ${DISK} mklabel msdos

Setup Boot Partition:

sudo fdisk ${DISK} << __EOF__
n
p
1

+64M
t
e
p
w
__EOF__

Set Boot Flag

sudo parted --script ${DISK} set 1 boot on

Format Boot Partition as vfat:

DISK=/dev/mmcblk0
sudo mkfs.vfat -F 16 ${DISK}p1 -n boot
(or)
DISK=/dev/sdX
sudo mkfs.vfat -F 16 ${DISK}1 -n boot

Setup Root File System Partition:

sudo fdisk ${DISK} << __EOF__
n
p
2

w
__EOF__

Format rootfs as ext4:

DISK=/dev/mmcblk0
sudo mkfs.ext4 ${DISK}p2 -L rootfs
(or)
DISK=/dev/sdX
sudo mkfs.ext4 ${DISK}2 -L rootfs

Mount the Boot & Root File System Partitions:

Install Bootloaders:

Copy MLO to the boot partition

sudo cp -v ./u-boot/MLO /media/boot/

Copy u-boot.img to the boot partition

sudo cp -v ./u-boot/u-boot.img /media/boot/

uEnv.txt v3.2.x based bootscript
Create U-Boot v3.2.x "uEnv.txt" boot script: (nano uEnv.txt)

uEnv.txt
console=ttyO0,115200n8

mmcroot=/dev/mmcblk0p2 ro
mmcrootfstype=ext4 rootwait fixrtc

mmc_load_image=fatload mmc 0:1 0x80300000 zImage
mmc_load_initrd=fatload mmc 0:1 0x81600000 initrd.img; setenv initrd_size ${filesize}

mmcargs=setenv bootargs console=${console} root=${mmcroot} rootfstype=${mmcrootfstype}

#Just: zImage
xyz_mmcboot=run mmc_load_image; echo Booting from mmc ...
loaduimage=run xyz_mmcboot; run mmcargs; bootz 0x80300000

#zImage and initrd
#xyz_mmcboot=run mmc_load_image; run mmc_load_initrd; echo Booting from mmc ...
#loaduimage=run xyz_mmcboot; run mmcargs; bootz 0x80300000 0x81600000:${initrd_size}

uEnv.txt v3.6.x device tree based bootscript
Create Device Tree v3.6.x "uEnv.txt" boot script: (nano uEnv.txt)

uEnv.txt
initrd_high=0xffffffff
fdt_high=0xffffffff
dtb_file=am335x-bone.dtb

console=ttyO0,115200n8

mmcroot=/dev/mmcblk0p2 ro
mmcrootfstype=ext4 rootwait fixrtc

mmc_load_image=fatload mmc 0:1 0x80300000 zImage
mmc_load_initrd=fatload mmc 0:1 0x81600000 initrd.img; setenv initrd_size ${filesize}
mmc_load_dtb=fatload mmc 0:1 0x815f0000 /dtbs/${dtb_file}

mmcargs=setenv bootargs console=${console} root=${mmcroot} rootfstype=${mmcrootfstype}

#Just: zImage
xyz_mmcboot=run mmc_load_image; run mmc_load_dtb; echo Booting from mmc ...
loaduimage=run xyz_mmcboot; run mmcargs; bootz 0x80300000 - 0x815f0000

#zImage and initrd
#xyz_mmcboot=run mmc_load_image; run mmc_load_initrd; run mmc_load_dtb; echo Booting from mmc ...
#loaduimage=run xyz_mmcboot; run mmcargs; bootz 0x80300000 0x81600000:${initrd_size} 0x815f0000

Copy uEnv.txt to the boot partition:

sudo cp -v ./uEnv.txt /media/boot/

Note: This repo tree is under active development, so the Kernel version can change on a daily basis...
Copy Kernel zImage:

sudo cp -v ./linux-dev/deploy/3.2.33-psp26.zImage /media/boot/zImage

Copy Kernel dtbs (Device Tree v3.6.x):

sudo mkdir -p /media/boot/dtbs/
sudo tar xfv ./linux-dev/deploy/3.6.0-bone0-dtbs.tar.gz -C /media/boot/dtbs/

Copy Root File System:

sudo tar xfvp ./*-*-minimal-arm*-*/armel-rootfs-*.tar -C /media/rootfs/

Copy Kernel modules:

sudo tar xfv ./linux-dev/deploy/3.2.33-psp26-modules.tar.gz -C /media/rootfs/

Tweak "/etc/fstab", the defaults should work for most boards:

sudo nano /media/rootfs/etc/fstab

Edit:

/etc/fstab
/dev/mmcblk0p2 / auto errors=remount-ro 0 1
/dev/mmcblk0p1 /boot/uboot auto defaults 0 0

Enable Networking on Bootup:
Note: Boards without ethernet interfaces will have delays on bootup.

sudo nano /media/rootfs/etc/network/interfaces

From: (uncomment)

/etc/network/interfaces
#auto eth0
#iface eth0 inet dhcp

To:

/etc/network/interfaces
auto eth0
iface eth0 inet dhcp
Enable Serial Login:

Debian:

sudo nano /media/rootfs/etc/inittab

edit last line:

/etc/inittab
from: T2:23:respawn:/sbin/getty -L 115200 vt102
to: T2:23:respawn:/sbin/getty -L ttyO0 115200 vt102

Ubuntu:

sudo nano /media/rootfs/etc/init/serial.conf

Add:

/etc/init/serial.conf
start on stopped rc RUNLEVEL=[2345]
stop on runlevel [!2345]

respawn
exec /sbin/getty 115200 ttyO0

Remove microSD card:

sync
sudo umount /media/boot
sudo umount /media/rootfs

FAQ

CircuitCo LCD3 Backlight:
Turn on Backlight:

i2cset -f -y 1 0x24 0x07 0x09
i2cset -f -y 1 0x24 0x08 0x60

CircuitCo LCD3/LCD7 TouchScreen:
Add to /etc/modules:

/etc/modules
fbcon
ti_tscadc

[ 本帖最后由 chenzhufly 于 2012-11-14 19:07 编辑 ]

生活就是油盐酱醋再加一点糖，快活就是一天到晚乐呵呵的忙 =================================== 做一个简单的人，踏实而务实，不沉溺幻想，不庸人自扰

回复评论（2）

沙发爱JustdoIT

感谢楼主，很好的东西。

点赞 2014-1-8 09:11

板凳 andylianggq

正在学习中。。。。。。。。

点赞 2014-7-7 12:11

[经验] 【学习Sitara™ AM335x】- Beaglebone环境的搭建方法

回复评论 （2）

沙发 爱JustdoIT

板凳 andylianggq

回复评论（2）

沙发爱JustdoIT