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This is a page about TI's Cortex-A8 based; BeagleBone.
{hide-comments}
{toc:indent=20px|style=disc}
h2. Availability
Boards:
[BeagleBone|https://www.digikey.com/product-search/en?keywords=BB-BONE-000-ND] at Digi-Key
h2. Basic Requirements
* Running a recent supported release of Debian, Fedora or Ubuntu on a x86 64bit based PC; without OS Virtualization Software.
* Many of the listed commands assume /bin/bash as the default shell.
* ARM Cross Compiler -- Linaro: [https://www.linaro.org]
** Linaro Toolchain Binaries: [https://www.linaro.org/downloads/]
* Bootloader
** Das U-Boot -- the Universal Boot Loader: [http://www.denx.de/wiki/U-Boot]
** Source: [https://github.com/u-boot/u-boot/]
* Linux Kernel
** Linus's Mainline tree: [https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git]
* ARM based rootfs
** Debian: [https://www.debian.org]
** Ubuntu: [https://www.ubuntu.com]
h2. ARM Cross Compiler: GCC
This is a pre-built (64bit) version of GCC that runs on generic linux, sorry (32bit) x86 users, it's time to upgrade...
Download/Extract:
{code:title=user@localhost:~$}
wget -c https://releases.linaro.org/components/toolchain/binaries/6.5-2018.12/arm-linux-gnueabihf/gcc-linaro-6.5.0-2018.12-x86_64_arm-linux-gnueabihf.tar.xz
tar xf gcc-linaro-6.5.0-2018.12-x86_64_arm-linux-gnueabihf.tar.xz
export CC=`pwd`/gcc-linaro-6.5.0-2018.12-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-
{code}
Test Cross Compiler:
{code:title=user@localhost:~$}
${CC}gcc --version
{code}
{code:title=Test Output:}
arm-linux-gnueabihf-gcc (Linaro GCC 6.5-2018.12) 6.5.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
{code}
h2. Bootloader: U-Boot
Das U-Boot -- the Universal Boot Loader: [http://www.denx.de/wiki/U-Boot]
eewiki.net patch archive: [https://github.com/eewiki/u-boot-patches]
Download:
{code:title=user@localhost:~$}
git clone -b v2019.04 https://github.com/u-boot/u-boot --depth=1
cd u-boot/
{code}
Patches:
{code:title=user@localhost:~/u-boot$}
wget -c https://github.com/eewiki/u-boot-patches/raw/master/v2019.04/0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch
wget -c https://github.com/eewiki/u-boot-patches/raw/master/v2019.04/0002-U-Boot-BeagleBone-Cape-Manager.patch
patch -p1 < 0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch
patch -p1 < 0002-U-Boot-BeagleBone-Cape-Manager.patch
{code}
Configure and Build:
{code:title=user@localhost:~/u-boot$}
make ARCH=arm CROSS_COMPILE=${CC} distclean
make ARCH=arm CROSS_COMPILE=${CC} am335x_evm_defconfig
make ARCH=arm CROSS_COMPILE=${CC}
{code}
h2. Linux Kernel
This script will build the kernel, modules, device tree binaries and copy them to the deploy directory.
h3. Mainline
Download:
{code:title=~/}
git clone https://github.com/RobertCNelson/bb-kernel
cd bb-kernel/
{code}
For am33x-v4.14 (Longterm 4.14.x):
{code:title=user@localhost:~/bb-kernel$}
git checkout origin/am33x-v4.14 -b tmp
{code}
For am33x-rt-v4.14 (Longterm 4.14.x + Real-Time Linux):
{code:title=user@localhost:~/bb-kernel$}
git checkout origin/am33x-rt-v4.14 -b tmp
{code}
For am33x-v4.19 (Longterm 4.19.x):
{code:title=user@localhost:~/bb-kernel$}
git checkout origin/am33x-v4.19 -b tmp
{code}
For am33x-rt-v4.19 (Longterm 4.19.x + Real-Time Linux):
{code:title=user@localhost:~/bb-kernel$}
git checkout origin/am33x-rt-v4.19 -b tmp
{code}
For am33x-v5.4 (Longterm 5.4.x):
{code:title=user@localhost:~/bb-kernel$}
git checkout origin/am33x-v5.4 -b tmp
{code}
For am33x-rt-v5.4 (Longterm 5.4.x + Real-Time Linux):
{code:title=user@localhost:~/bb-kernel$}
git checkout origin/am33x-rt-v5.4 -b tmp
{code}
Build:
{code:title=user@localhost:~/bb-kernel$}
./build_kernel.sh
{code}
h3. TI BSP
Download:
{code:title=~/}
git clone https://github.com/RobertCNelson/ti-linux-kernel-dev.git
cd ti-linux-kernel-dev/
{code}
For TI v4.14.x:
{code:title=~/ti-linux-kernel-dev/}
git checkout origin/ti-linux-4.14.y -b tmp
{code}
For TI v4.14.x: Real-Time
{code:title=~/ti-linux-kernel-dev/}
git checkout origin/ti-linux-rt-4.14.y -b tmp
{code}
For TI v4.19.x:
{code:title=~/ti-linux-kernel-dev/}
git checkout origin/ti-linux-4.19.y -b tmp
{code}
For TI v4.19.x: Real-Time
{code:title=~/ti-linux-kernel-dev/}
git checkout origin/ti-linux-rt-4.19.y -b tmp
{code}
For TI v5.4.x:
{code:title=~/ti-linux-kernel-dev/}
git checkout origin/ti-linux-5.4.y -b tmp
{code}
For TI v5.4.x: Real-Time
{code:title=~/ti-linux-kernel-dev/}
git checkout origin/ti-linux-rt-5.4.y -b tmp
{code}
Build:
{code:title=user@localhost:~/ti-linux-kernel-dev$}
./build_kernel.sh
{code}
h2. Root File System
h3. Debian 10
|| User || Password ||
| debian | temppwd |
| root | root |
Download:
{code:title=user@localhost:~$}
wget -c https://rcn-ee.com/rootfs/eewiki/minfs/debian-10.4-minimal-armhf-2020-05-10.tar.xz
{code}
Verify:
{code:title=user@localhost:~$}
sha256sum debian-10.4-minimal-armhf-2020-05-10.tar.xz
{code}
{code:title=sha256sum output:}
cd598e42850cbef87602bf15ee343abfbf0d8c6ba81028c741672b5f24263534 debian-10.4-minimal-armhf-2020-05-10.tar.xz
{code}
Extract:
{code:title=user@localhost:~$}
tar xf debian-10.4-minimal-armhf-2020-05-10.tar.xz
{code}
h3. Ubuntu 20.04 LTS
|| User || Password ||
| ubuntu | temppwd |
Download:
{code:title=user@localhost:~$}
wget -c https://rcn-ee.com/rootfs/eewiki/minfs/ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz
{code}
Verify:
{code:title=user@localhost:~$}
sha256sum ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz
{code}
{code:title=sha256sum output:}
de0177ac9259fdbcc626ee239f4258b64070c0921dbc38c45fab6925a5becaa1 ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz
{code}
Extract:
{code:title=user@localhost:~$}
tar xf ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz
{code}
h2. Setup microSD card
We need to access the External Drive to be utilized by the target device. Run lsblk to help figure out what linux device has been reserved for your External Drive.
{code:title=Example: for DISK=/dev/sdX}
lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 465.8G 0 disk
├─sda1 8:1 0 512M 0 part /boot/efi
└─sda2 8:2 0 465.3G 0 part / <- Development Machine Root Partition
sdb 8:16 1 962M 0 disk <- microSD/USB Storage Device
└─sdb1 8:17 1 961M 0 part <- microSD/USB Storage Partition
{code}
{code:title=Thus you would use:}
export DISK=/dev/sdb
{code}
{code:title=Example: for DISK=/dev/mmcblkX}
lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 465.8G 0 disk
├─sda1 8:1 0 512M 0 part /boot/efi
└─sda2 8:2 0 465.3G 0 part / <- Development Machine Root Partition
mmcblk0 179:0 0 962M 0 disk <- microSD/USB Storage Device
└─mmcblk0p1 179:1 0 961M 0 part <- microSD/USB Storage Partition
{code}
{code:title=Thus you would use:}
export DISK=/dev/mmcblk0
{code}
Erase partition table/labels on microSD card:
{code}
sudo dd if=/dev/zero of=${DISK} bs=1M count=10
{code}
Install Bootloader:
{code:title=user@localhost:~$}
sudo dd if=./u-boot/MLO of=${DISK} count=1 seek=1 bs=128k
sudo dd if=./u-boot/u-boot.img of=${DISK} count=2 seek=1 bs=384k
{code}
Create Partition Layout:
With util-linux v2.26, sfdisk was rewritten and is now based on libfdisk.
{code:title=Check the version of sfdisk installed on your pc}
sudo sfdisk --version
{code}
{code:title=Example Output}
sfdisk from util-linux 2.27.1
{code}
{code:title=sfdisk >= 2.26.x}
sudo sfdisk ${DISK} <<-__EOF__
4M,,L,*
__EOF__
{code}
{code:title=sfdisk <= 2.25.x}
sudo sfdisk --unit M ${DISK} <<-__EOF__
4,,L,*
__EOF__
{code}
Format Partition:
{code}
for: DISK=/dev/mmcblkX
sudo mkfs.ext4 -L rootfs ${DISK}p1
for: DISK=/dev/sdX
sudo mkfs.ext4 -L rootfs ${DISK}1
{code}
Mount Partition:
*On most systems these partitions may be auto-mounted...*
{code}
sudo mkdir -p /media/rootfs/
for: DISK=/dev/mmcblkX
sudo mount ${DISK}p1 /media/rootfs/
for: DISK=/dev/sdX
sudo mount ${DISK}1 /media/rootfs/
{code}
h2. Install Kernel and Root File System
To help new users, since the kernel version can change on a daily basis. The kernel building scripts listed on this page will now give you a hint of what kernel version was built.
{code}
-----------------------------
Script Complete
eewiki.net: [user@localhost:~$ export kernel_version=5.X.Y-Z]
-----------------------------
{code}
Copy and paste that "export kernel_version=5.X.Y-Z" exactly as shown in your own build/desktop environment and hit enter to create an environment variable to be used later.
{code}
export kernel_version=5.X.Y-Z
{code}
h3. Copy Root File System
{code:title=user@localhost:~$}
sudo tar xfvp ./*-*-*-armhf-*/armhf-rootfs-*.tar -C /media/rootfs/
sync
sudo chown root:root /media/rootfs/
sudo chmod 755 /media/rootfs/
{code}
h3. Set uname_r in /boot/uEnv.txt
{code:title=user@localhost:~$}
sudo sh -c "echo 'uname_r=${kernel_version}' >> /media/rootfs/boot/uEnv.txt"
{code}
h3. Copy Kernel Image
Kernel Image:
{code:title=user@localhost:~$}
sudo cp -v ./bb-kernel/deploy/${kernel_version}.zImage /media/rootfs/boot/vmlinuz-${kernel_version}
{code}
h3. Copy Kernel Device Tree Binaries
{code:title=user@localhost:~$}
sudo mkdir -p /media/rootfs/boot/dtbs/${kernel_version}/
sudo tar xfv ./bb-kernel/deploy/${kernel_version}-dtbs.tar.gz -C /media/rootfs/boot/dtbs/${kernel_version}/
{code}
h3. Copy Kernel Modules
{code:title=user@localhost:~$}
sudo tar xfv ./bb-kernel/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/
{code}
h3. File Systems Table (/etc/fstab)
{code:title=user@localhost:~/$}
sudo sh -c "echo '/dev/mmcblk0p1 / auto errors=remount-ro 0 1' >> /media/rootfs/etc/fstab"
{code}
h3. Networking
Edit: /etc/network/interfaces
{code}
sudo nano /media/rootfs/etc/network/interfaces
{code}
Add:
{code:title=/etc/network/interfaces}
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
{code}
h3. Networking: Using a shared SD card with Multiple BeagleBone
To always enable the Ethernet interface as eth0.
Edit: /etc/udev/rules.d/70-persistent-net.rules
{code}
sudo nano /media/rootfs/etc/udev/rules.d/70-persistent-net.rules
{code}
Add:
{code:title=/etc/udev/rules.d/70-persistent-net.rules}
# BeagleBone: net device ()
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
{code}
h3. Remove microSD/SD card
{code}
sync
sudo umount /media/rootfs
{code}
h3. U-Boot Overlays
Full Documentation: [readme|https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays]
Any issues:
{code:title=Any issues run:}
sudo /opt/scripts/tools/version.sh
{code}
Enable:
{code:title=/boot/uEnv.txt}
enable_uboot_overlays=1
{code}
To Disable: BB-ADC:
{code:title=/boot/uEnv.txt}
disable_uboot_overlay_adc=1
{code}
U-Boot: override detected capes
{code:title=/boot/uEnv.txt}
uboot_overlay_addr0=/lib/firmware/<file0>.dtbo
uboot_overlay_addr1=/lib/firmware/<file1>.dtbo
uboot_overlay_addr2=/lib/firmware/<file2>.dtbo
uboot_overlay_addr3=/lib/firmware/<file3>.dtbo
{code}
U-Boot: disable auto-loading of detected capes
{code:title=/boot/uEnv.txt}
disable_uboot_overlay_addr0=1
disable_uboot_overlay_addr1=1
disable_uboot_overlay_addr2=1
disable_uboot_overlay_addr3=1
{code}
U-Boot: load 4 more un-detected capes
{code:title=/boot/uEnv.txt}
uboot_overlay_addr4=/lib/firmware/<file4>.dtbo
uboot_overlay_addr5=/lib/firmware/<file5>.dtbo
uboot_overlay_addr6=/lib/firmware/<file6>.dtbo
uboot_overlay_addr7=/lib/firmware/<file7>.dtbo
{code}
U-Boot: PRU Options (v4.14.x-ti)
{code:title=/boot/uEnv.txt}
uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-14-TI-00A0.dtbo
{code}
U-Boot: PRU Options (v4.19.x-ti)
{code:title=/boot/uEnv.txt}
uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-19-TI-00A0.dtbo
{code}
U-Boot: PRU Options
{code:title=/boot/uEnv.txt}
uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo
{code}
U-Boot: Cape Universal
{code:title=/boot/uEnv.txt}
enable_uboot_cape_universal=1
{code}
h2. Comments
Any questions or comments please go to our TechForum: [TechForum|https://forum.digikey.com/c/linux-on-arm/] |
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