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

Availability

Boards:
PocketBeagle at Digi-Key

Click Boards:
USB UART CLICK at Digi-Key
ETH CLICK at Digi-Key
ETH WIZ CLICK at Digi-Key
RTC CLICK at Digi-Key
RTC 5 CLICK at Digi-Key
RTC 6 CLICK at Digi-Key
MPU 9DOF CLICK at Digi-Key
WEATHER CLICK at Digi-Key
THUNDER CLICK 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/6.4-2017.08/arm-linux-gnueabihf/gcc-linaro-6.4.1-2017.08-x86_64_arm-linux-gnueabihf.tar.xz
tar xf gcc-linaro-6.4.1-2017.08-x86_64_arm-linux-gnueabihf.tar.xz
export CC=`pwd`/gcc-linaro-6.4.1-2017.08-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-

Test Cross Compiler:

~/
${CC}gcc --version
arm-linux-gnueabihf-gcc (Linaro GCC 6.4-2017.08) 6.4.1 20170707
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 v2017.11-rc1 -b tmp

Patches:

~/u-boot
wget -c https://rcn-ee.com/repos/git/u-boot-patches/v2017.11-rc1/0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch
wget -c https://rcn-ee.com/repos/git/u-boot-patches/v2017.11-rc1/0002-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

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

TI BSP

Download:

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

For TI v4.4.x:

~/ti-linux-kernel-dev/
git checkout origin/ti-linux-4.4.y -b tmp

For TI v4.4.x: Real-Time

~/ti-linux-kernel-dev/
git checkout origin/ti-linux-rt-4.4.y -b tmp

For TI v4.9.x:

~/ti-linux-kernel-dev/
git checkout origin/ti-linux-4.9.y -b tmp

For TI v4.9.x: Real-Time

~/ti-linux-kernel-dev/
git checkout origin/ti-linux-rt-4.9.y -b tmp

For TI v4.14.x:

~/ti-linux-kernel-dev/
git checkout origin/ti-linux-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-9.2-minimal-armhf-2017-10-07.tar.xz

Verify:

~/
sha256sum debian-9.2-minimal-armhf-2017-10-07.tar.xz
84278f084b16d24ef369df3ee46ece2307720567cd7f87015496c9d9cf7d1f8d  debian-9.2-minimal-armhf-2017-10-07.tar.xz

Extract:

~/
tar xf debian-9.2-minimal-armhf-2017-10-07.tar.xz

Ubuntu 16.04 LTS

User

Password

ubuntu

temppwd

Download:

~/
wget -c https://rcn-ee.com/rootfs/eewiki/minfs/ubuntu-16.04.3-minimal-armhf-2017-10-07.tar.xz

Verify:

~/
sha256sum ubuntu-16.04.3-minimal-armhf-2017-10-07.tar.xz
7f4e7a0ebf280fc442e91b1b4de83e85c7dd656a5b8ec6ee16f23df44d3c697d  ubuntu-16.04.3-minimal-armhf-2017-10-07.tar.xz

Extract:

~/
tar xf ubuntu-16.04.3-minimal-armhf-2017-10-07.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:

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/

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 ./ti-linux-kernel-dev/deploy/${kernel_version}.zImage /media/rootfs/boot/vmlinuz-${kernel_version}

Copy Kernel Device Tree Binaries

~/
sudo mkdir -p /media/rootfs/boot/dtbs/${kernel_version}/
sudo tar xfv ./ti-linux-kernel-dev/deploy/${kernel_version}-dtbs.tar.gz -C /media/rootfs/boot/dtbs/${kernel_version}/

Copy Kernel Modules

~/
sudo tar xfv ./ti-linux-kernel-dev/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"

Click Boards

U-Boot can currently load up to 4 overlays thru /boot/uEnv.txt
To load an overlay, remove the # and replace the fileX with the matching name.

#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
Ethernet

ETH CLICK

  • bb-cape-overlays: (minimum version: 4.4.20170927.0-0rcnee1)
  • Kernel: (minimum version: 4.4/4.9/4.14)
    ETH CLICK
    PB-SPI0-ETH-CLICK.dtbo
    PB-SPI1-ETH-CLICK.dtbo
    

ETH WIZ CLICK

  • bb-cape-overlays: (minimum version: 4.4.20171005.0-0rcnee1)
  • Kernel: (minimum version: 4.4.91-ti-r133/4.9.53-ti-r67/4.14.0-rc3-ti-r2)
    ETH WIZ CLICK
    PB-SPI0-ETH-WIZ-CLICK.dtbo
    PB-SPI1-ETH-WIZ-CLICK.dtbo
    
RTC

RTC CLICK

  • bb-cape-overlays: (minimum version: 4.4.20170928.1-0rcnee1)
  • Kernel: (minimum version: 4.4/4.9/4.14)
    RTC CLICK
    PB-I2C1-RTC-CLICK.dtbo
    PB-I2C2-RTC-CLICK.dtbo
    

RTC 5 CLICK

  • bb-cape-overlays: (minimum version: 4.4.20171002.0-0rcnee1)
  • Kernel: (minimum version: 4.4/4.9/4.14)
    RTC 5 CLICK
    PB-SPI0-RTC-5-CLICK.dtbo
    PB-SPI1-RTC-5-CLICK.dtbo
    

RTC 6 CLICK

  • bb-cape-overlays: (minimum version: 4.4.20170927.0-0rcnee1)
  • Kernel: (minimum version: 4.4/4.9/4.14)
    RTC 6 CLICK
    PB-I2C1-RTC-6-CLICK.dtbo
    PB-I2C2-RTC-6-CLICK.dtbo
    
Motion

MPU 9DOF CLICK

  • bb-cape-overlays: (minimum version: 4.4.20171004.0-0rcnee1)
  • Kernel: (minimum version: 4.14.0-rc3-ti-r1)
    MPU 9DOF CLICK
    PB-I2C1-MPU-9DOF-CLICK.dtbo
    PB-I2C2-MPU-9DOF-CLICK.dtbo
    
Sensors

WEATHER CLICK

  • bb-cape-overlays: (minimum version: 4.4.20171004.1-0rcnee1)
  • Kernel: (minimum version: 4.4/4.9/4.14)
    WEATHER CLICK
    PB-I2C1-WEATHER-CLICK.dtbo
    PB-I2C2-WEATHER-CLICK.dtbo
    

THUNDER CLICK

  • bb-cape-overlays: (minimum version: 4.4.20171004.2-0rcnee1)
  • Kernel: (minimum version: 4.4/4.9/4.14)
    THUNDER CLICK
    PB-I2C0-THUNDER-CLICK.dtbo
    PB-I2C1-THUNDER-CLICK.dtbo
    

Remove microSD/SD card

sync
sudo umount /media/rootfs

Comments

Comments, feedback, and questions can be sent to: eewiki@digikey.com
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