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This is a page about TI's Cortex-A8 based; BeagleBone Black.

Availability

Boards:
BeagleBone Black at Digi-Key
BeagleBone Green at Digi-Key
Embest BeagleBone Black at Digi-Key
BeagleBone Black Wireless at Digi-Key
BeagleBone Green Wireless at Digi-Key

Power Supplies:
USB Micro for BeagleBone Green at Digi-Key

Cables:
(USB to serial adapter) TTL-232R-3V3 at Digi-Key
HDMI-A Male to HDMI-D Male (1.5M) at Digi-Key
HDMI-A Male to HDMI-D Male (1.5M) at Digi-Key
HDMI-A Male to HDMI-D Male (2M) at Digi-Key

Basic Requirements

ARM Cross Compiler: GCC

This is a pre-built (64bit) version of Linaro GCC that runs on generic linux, sorry (32bit) x86 users, it's time to upgrade...
Download/Extract:

~/
wget -c https://releases.linaro.org/components/toolchain/binaries/6.4-2018.05/arm-linux-gnueabihf/gcc-linaro-6.4.1-2018.05-x86_64_arm-linux-gnueabihf.tar.xz
tar xf gcc-linaro-6.4.1-2018.05-x86_64_arm-linux-gnueabihf.tar.xz
export CC=`pwd`/gcc-linaro-6.4.1-2018.05-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-

Test Cross Compiler:

~/
${CC}gcc --version
arm-linux-gnueabihf-gcc (Linaro GCC 6.4-2018.05) 6.4.1 20180425 [linaro-6.4-2018.05 revision 7b15d0869c096fe39603ad63dc19ab7cf035eb70]
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.

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:

~/
git clone https://github.com/u-boot/u-boot
cd u-boot/
git checkout v2018.09 -b tmp

Patches:

~/u-boot
wget -c https://rcn-ee.com/repos/git/u-boot-patches/v2018.09/0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch
wget -c https://rcn-ee.com/repos/git/u-boot-patches/v2018.09/0002-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

Configure and Build:

~/u-boot
make ARCH=arm CROSS_COMPILE=${CC} distclean
make ARCH=arm CROSS_COMPILE=${CC} am335x_evm_defconfig
make ARCH=arm CROSS_COMPILE=${CC}

Linux Kernel

Spectre: https://meltdownattack.com and https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability
Spectre v2 Migation requires minimal: U-Boot: v2018.07 and Kernel: v4.18.x

[    0.047363] CPU0: Spectre v2: using BPIALL workaround

This script will build the kernel, modules, device tree binaries and copy them to the deploy directory.

Mainline

Download:

~/
git clone https://github.com/RobertCNelson/bb-kernel
cd bb-kernel/

For am33x-v4.9 (Longterm 4.9.x):

~/bb-kernel/
git checkout origin/am33x-v4.9 -b tmp

For am33x-rt-v4.9 (Longterm 4.9.x + Real-Time Linux):

~/bb-kernel/
git checkout origin/am33x-rt-v4.9 -b tmp

For am33x-v4.14 (Longterm 4.14.x):

~/bb-kernel/
git checkout origin/am33x-v4.14 -b tmp

For am33x-rt-v4.14 (Longterm 4.14.x + Real-Time Linux):

~/bb-kernel/
git checkout origin/am33x-rt-v4.14 -b tmp

For am33x-v4.18 (Stable):

~/bb-kernel/
git checkout origin/am33x-v4.18 -b tmp

Build:

~/bb-kernel/
./build_kernel.sh

TI BSP

Download:

~/
git clone https://github.com/RobertCNelson/ti-linux-kernel-dev.git
cd ti-linux-kernel-dev/

For TI v4.14.x:

~/ti-linux-kernel-dev/
git checkout origin/ti-linux-4.14.y -b tmp

For TI v4.14.x: Real-Time

~/ti-linux-kernel-dev/
git checkout origin/ti-linux-rt-4.14.y -b tmp

Build:

~/ti-linux-kernel-dev/
./build_kernel.sh

Root File System

Debian 9

User

Password

debian

temppwd

root

root

Download:

~/
wget -c https://rcn-ee.com/rootfs/eewiki/minfs/debian-9.5-minimal-armhf-2018-07-30.tar.xz

Verify:

~/
sha256sum debian-9.5-minimal-armhf-2018-07-30.tar.xz
9399d649d1ce9910bbfc745f59dc57ee0e1134f57e8cae01c8cd75a8bd9d1e1e  debian-9.5-minimal-armhf-2018-07-30.tar.xz

Extract:

~/
tar xf debian-9.5-minimal-armhf-2018-07-30.tar.xz

Ubuntu 18.04 LTS

User

Password

ubuntu

temppwd

Download:

~/
wget -c https://rcn-ee.com/rootfs/eewiki/minfs/ubuntu-18.04.1-minimal-armhf-2018-07-30.tar.xz

Verify:

~/
sha256sum ubuntu-18.04.1-minimal-armhf-2018-07-30.tar.xz
6b212ee7dd0d5c9c0af49c22cf78b63e6ad20cec641c303232fca9f21a18804c  ubuntu-18.04.1-minimal-armhf-2018-07-30.tar.xz

Extract:

~/
tar xf ubuntu-18.04.1-minimal-armhf-2018-07-30.tar.xz

Setup microSD card

For these instruction we are assuming, DISK=/dev/mmcblk0, lsblk is very useful for determining the device id.

export DISK=/dev/mmcblk0

Erase partition table/labels on microSD card:

sudo dd if=/dev/zero of=${DISK} bs=1M count=10

Install Bootloader:

~/
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

Create Partition Layout:
With util-linux v2.26, sfdisk was rewritten and is now based on libfdisk.

sudo sfdisk --version
sfdisk from util-linux 2.27.1
sfdisk >= 2.26.x
sudo sfdisk ${DISK} <<-__EOF__
4M,,L,*
__EOF__
sfdisk <= 2.25.x
sudo sfdisk --unit M ${DISK} <<-__EOF__
4,,L,*
__EOF__

Format Partition:
With mkfs.ext4 1.43, we need to make sure metadata_csum and 64bit are disabled.
As the version of U-Boot needed for this target CAN NOT correctly handle reading files with these newer ext4 options.

mkfs.ext4 -V
sudo mkfs.ext4 -V
mke2fs 1.43-WIP (15-Mar-2016)
        Using EXT2FS Library version 1.43-WIP
mkfs.ext4 >= 1.43
for: DISK=/dev/mmcblk0
sudo mkfs.ext4 -L rootfs -O ^metadata_csum,^64bit ${DISK}p1
 
for: DISK=/dev/sdX
sudo mkfs.ext4 -L rootfs -O ^metadata_csum,^64bit ${DISK}1
mkfs.ext4 <= 1.42
for: DISK=/dev/mmcblk0
sudo mkfs.ext4 -L rootfs ${DISK}p1
 
for: DISK=/dev/sdX
sudo mkfs.ext4 -L rootfs ${DISK}1

Mount Partition:
On most systems these partitions may will be auto-mounted...

sudo mkdir -p /media/rootfs/
 
for: DISK=/dev/mmcblk0
sudo mount ${DISK}p1 /media/rootfs/
 
for: DISK=/dev/sdX
sudo mount ${DISK}1 /media/rootfs/

Backup Bootloader

This version of MLO/u-boot.img will be used on the "eMMC" flasher script on this page.

~/
sudo mkdir -p /media/rootfs/opt/backup/uboot/
sudo cp -v ./u-boot/MLO /media/rootfs/opt/backup/uboot/
sudo cp -v ./u-boot/u-boot.img /media/rootfs/opt/backup/uboot/

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.

-----------------------------
Script Complete
eewiki.net: [user@localhost:~$ export kernel_version=4.X.Y-Z]
-----------------------------

Copy and paste that "export kernel_version=4.X.Y-Z" exactly as shown in your own build/desktop environment and hit enter to create an environment variable to be used later.

export kernel_version=4.X.Y-Z

Copy Root File System

~/
sudo tar xfvp ./*-*-*-armhf-*/armhf-rootfs-*.tar -C /media/rootfs/
sync
sudo chown root:root /media/rootfs/
sudo chmod 755 /media/rootfs/

Set uname_r in /boot/uEnv.txt

~/
sudo sh -c "echo 'uname_r=${kernel_version}' >> /media/rootfs/boot/uEnv.txt"

Copy Kernel Image

Kernel Image:

~/
sudo cp -v ./bb-kernel/deploy/${kernel_version}.zImage /media/rootfs/boot/vmlinuz-${kernel_version}

Copy Kernel Device Tree Binaries

~/
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}/

Copy Kernel Modules

~/
sudo tar xfv ./bb-kernel/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/

File Systems Table (/etc/fstab)

sudo sh -c "echo '/dev/mmcblk0p1  /  auto  errors=remount-ro  0  1' >> /media/rootfs/etc/fstab"

Networking

Edit: /etc/network/interfaces

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

Add:

/etc/network/interfaces
auto lo
iface lo inet loopback
 
auto eth0
iface eth0 inet dhcp

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

sudo nano /media/rootfs/etc/udev/rules.d/70-persistent-net.rules

Add:

/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"

Remove microSD/SD card

sync
sudo umount /media/rootfs

HDMI

This sections assumes you have already installed your favorite xorg based window manager, such as lxde, xfce, kde, gnome, etc... These are packages that need to be installed on top of your selected windows manager and an xorg.conf needed to correctly setup the video interface.
Note: If the cursor doesn\'t show up right away, first hit: ctlr-alt-f1 then: ctrl-alt-f7 after which it \'should\' show up...
Make sure to install, fbdev driver and xrandr utilities:

sudo apt update
sudo apt install read-edid xserver-xorg-video-fbdev x11-xserver-utils
/etc/X11/xorg.conf
Section "Monitor"
        Identifier      "Builtin Default Monitor"
EndSection
Section "Device"
        Identifier      "Builtin Default fbdev Device 0"
        Driver          "fbdev"
EndSection
Section "Screen"
        Identifier      "Builtin Default fbdev Screen 0"
        Device          "Builtin Default fbdev Device 0"
        Monitor         "Builtin Default Monitor"
EndSection
Section "ServerLayout"
        Identifier      "Builtin Default Layout"
        Screen          "Builtin Default fbdev Screen 0"
EndSection

xrandr:

xrandr
xrandr --output HDMI-0 --mode 1024x768 --rate 60

xrandr (over serial/ssh)

xrandr -display :0.0 -q
xrandr -display :0.0 --output HDMI-0 --mode 1024x768 --rate 60

eMMC

Script to copy your microSD card to eMMC: (this will need these packages installed: initramfs-tools dosfstools rsync)

wget https://raw.githubusercontent.com/RobertCNelson/boot-scripts/master/tools/eMMC/bbb-eMMC-flasher-eewiki-ext4.sh
chmod +x bbb-eMMC-flasher-eewiki-ext4.sh
sudo /bin/bash ./bbb-eMMC-flasher-eewiki-ext4.sh

U-Boot Overlays

Full Documentation: readme
Any issues:

Any issues run:
sudo /opt/scripts/tools/version.sh

Enable:

/boot/uEnv.txt
enable_uboot_overlays=1

To Disable: eMMC:

/boot/uEnv.txt
disable_uboot_overlay_emmc=1

To Disable: HDMI VIDEO & AUDIO:

/boot/uEnv.txt
disable_uboot_overlay_video=1

To Disable: HDMI AUDIO:

/boot/uEnv.txt
disable_uboot_overlay_audio=1

To Disable: WL1835:

/boot/uEnv.txt
disable_uboot_overlay_wireless=1

To Disable: BB-ADC:

/boot/uEnv.txt
disable_uboot_overlay_adc=1

U-Boot: override detected capes

/boot/uEnv.txt
uboot_overlay_addr0=/lib/firmware/.dtbo
uboot_overlay_addr1=/lib/firmware/.dtbo
uboot_overlay_addr2=/lib/firmware/.dtbo
uboot_overlay_addr3=/lib/firmware/.dtbo

U-Boot: disable auto-loading of detected capes

/boot/uEnv.txt
disable_uboot_overlay_addr0=1
disable_uboot_overlay_addr1=1
disable_uboot_overlay_addr2=1
disable_uboot_overlay_addr3=1

U-Boot: load 4 more un-detected capes

/boot/uEnv.txt
uboot_overlay_addr4=/lib/firmware/.dtbo
uboot_overlay_addr5=/lib/firmware/.dtbo
uboot_overlay_addr6=/lib/firmware/.dtbo
uboot_overlay_addr7=/lib/firmware/.dtbo

U-Boot: PRU Options (v4.14.x-ti)

/boot/uEnv.txt
uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-14-TI-00A0.dtbo

U-Boot: PRU Options

/boot/uEnv.txt
uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo

U-Boot: Cape Universal

/boot/uEnv.txt
enable_uboot_cape_universal=1

Comments

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