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Wandboard

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Created by Robert Nelson, last modified on May 18, 2020

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This is a page about the NXP based i.MX6; Wandboard.

Availability

Boards:
Wandboard SOLO at Digi-Key
Wandboard DUAL at Digi-Key
Wandboard QUAD at Digi-Key
Wandboard SOLO (WB-IMX6S) at Digi-Key
Wandboard DUAL (WB-IMX6U-BW) at Digi-Key
Wandboard QUAD (WB-IMX6Q-BW) at Digi-Key
Wandboard QUADPLUS (WB-IMX6QP-BW) at Digi-Key
Accessories:
Wandboard Antenna Kit at Digi-Key
Wandboard Enclosure at Digi-Key
5V 2A+ DC Power Supply (2.1mm ID x 5.5mm OD positive center plug) at Digi-Key

Vendor Documentation

WANDBOARD.ORG: https://www.wandboard.org/

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

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:

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-

Test Cross Compiler:

user@localhost:~$

${CC}gcc --version

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.

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:

user@localhost:~$

git clone -b v2019.04 https://github.com/u-boot/u-boot --depth=1
cd u-boot/

Patches:

user@localhost:~/u-boot$

wget -c https://github.com/eewiki/u-boot-patches/raw/master/v2019.04/0001-wandboard-uEnv.txt-bootz-n-fixes.patch
 
patch -p1 < 0001-wandboard-uEnv.txt-bootz-n-fixes.patch

Configure and Build:

user@localhost:~/u-boot$

make ARCH=arm CROSS_COMPILE=${CC} distclean
make ARCH=arm CROSS_COMPILE=${CC} wandboard_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.
Download:

user@localhost:~$

git clone https://github.com/RobertCNelson/armv7-multiplatform
cd armv7-multiplatform/

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

user@localhost:~/armv7-multiplatform$

git checkout origin/v4.14.x -b tmp

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

user@localhost:~/armv7-multiplatform$

git checkout origin/v4.14.x-rt -b tmp

For v4.19.x (Longterm 4.19.x):

user@localhost:~/armv7-multiplatform$

git checkout origin/v4.19.x -b tmp

For v4.19.x-rt (Longterm 4.19.x + Real-Time Linux):

user@localhost:~/armv7-multiplatform$

git checkout origin/v4.19.x-rt -b tmp

For v5.4.x (Longterm 5.4.x):

user@localhost:~/armv7-multiplatform$

git checkout origin/v5.4.x -b tmp

For v5.4.x-rt (Longterm 5.4.x + Real-Time Linux):

user@localhost:~/armv7-multiplatform$

git checkout origin/v5.4.x-rt -b tmp

For v5.6.x (Stable):

user@localhost:~/armv7-multiplatform$

git checkout origin/v5.6.x -b tmp

For v5.6.x-rt (Stable + Real-Time Linux):

user@localhost:~/armv7-multiplatform$

git checkout origin/v5.6.x-rt -b tmp

Build:

user@localhost:~/armv7-multiplatform$

./build_kernel.sh

Root File System

Debian 10

User	Password
debian	temppwd
root	root

Download:

user@localhost:~$

wget -c https://rcn-ee.com/rootfs/eewiki/minfs/debian-10.4-minimal-armhf-2020-05-10.tar.xz

Verify:

user@localhost:~$

sha256sum debian-10.4-minimal-armhf-2020-05-10.tar.xz

sha256sum output:

cd598e42850cbef87602bf15ee343abfbf0d8c6ba81028c741672b5f24263534  debian-10.4-minimal-armhf-2020-05-10.tar.xz

Extract:

user@localhost:~$

tar xf debian-10.4-minimal-armhf-2020-05-10.tar.xz

Ubuntu 20.04 LTS

User	Password
ubuntu	temppwd

Download:

user@localhost:~$

wget -c https://rcn-ee.com/rootfs/eewiki/minfs/ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz

Verify:

user@localhost:~$

sha256sum ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz

sha256sum output:

de0177ac9259fdbcc626ee239f4258b64070c0921dbc38c45fab6925a5becaa1  ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz

Extract:

user@localhost:~$

tar xf ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz

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.

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

Thus you would use:

export DISK=/dev/sdb

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

Thus you would use:

export DISK=/dev/mmcblk0

Erase partition table/labels on microSD card:

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

Install Bootloader:

user@localhost:~$

sudo dd if=./u-boot/SPL of=${DISK} seek=1 bs=1k
sudo dd if=./u-boot/u-boot.img of=${DISK} seek=69 bs=1k

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

Check the version of sfdisk installed on your pc

sudo sfdisk --version

Example Output

sfdisk from util-linux 2.27.1

sfdisk >= 2.26.x

sudo sfdisk ${DISK} <<-__EOF__
1M,,L,*
__EOF__

sfdisk <= 2.25.x

sudo sfdisk --unit M ${DISK} <<-__EOF__
1,,L,*
__EOF__

Format Partition:

for: DISK=/dev/mmcblkX
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 be auto-mounted...

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/

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=5.X.Y-Z]
-----------------------------

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.

export kernel_version=5.X.Y-Z

Copy Root File System

user@localhost:~$

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

user@localhost:~$

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

Video

See other hints: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/fb/modedb.txt

~/

sudo sh -c "echo 'cmdline=video=HDMI-A-1:1024x768@60e' >> /media/rootfs/boot/uEnv.txt"

Copy Kernel Image

Kernel Image:

user@localhost:~$

sudo cp -v ./armv7-multiplatform/deploy/${kernel_version}.zImage /media/rootfs/boot/vmlinuz-${kernel_version}

Copy Kernel Device Tree Binaries

user@localhost:~$

sudo mkdir -p /media/rootfs/boot/dtbs/${kernel_version}/
sudo tar xfv ./armv7-multiplatform/deploy/${kernel_version}-dtbs.tar.gz -C /media/rootfs/boot/dtbs/${kernel_version}/

Copy Kernel Modules

user@localhost:~$

sudo tar xfv ./armv7-multiplatform/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/

File Systems Table (/etc/fstab)

user@localhost:~/$

sudo sh -c "echo '/dev/mmcblk2p1  /  auto  errors=remount-ro  0  1' >> /media/rootfs/etc/fstab"

WiFi

Dual/Quad only (Solo has no WiFi module installed)
see: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c?id=refs/tags/v3.11-rc3#n317

~/

wget -c https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/plain/brcm/brcmfmac4329-sdio.bin
wget -c https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/plain/brcm/brcmfmac4330-sdio.bin
 
wget -c https://rcn-ee.com/repos/git/meta-fsl-arm-extra/recipes-bsp/broadcom-nvram-config/files/wandboard/brcmfmac4329-sdio.txt
wget -c https://rcn-ee.com/repos/git/meta-fsl-arm-extra/recipes-bsp/broadcom-nvram-config/files/wandboard/brcmfmac4330-sdio.txt
 
sudo mkdir -p /media/rootfs/lib/firmware/brcm/
 
sudo cp -v ./brcmfmac43*-sdio.bin /media/rootfs/lib/firmware/brcm/
sudo cp -v ./brcmfmac43*-sdio.txt /media/rootfs/lib/firmware/brcm/

Status:

debian@arm:~$ dmesg | grep brcm
[    4.798229] brcmfmac: F1 signature read @0x18000000=0x9934329
[    4.799328] brcmfmac: brcmf_sdio_chip_drivestrengthinit: No SDIO Drive strength init done for chip 4329 rev 3 pmurev 6
[    5.058286] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Sep  2 2011 14:48:19 version 4.220.48
[    5.082280] brcmfmac: brcmf_fil_cmd_data: Failed err=-23
[    5.087654] brcmfmac: brcmf_fws_init: failed to set bdcv2 tlv signaling
debian@arm:~$ /sbin/ifconfig -a
wlan0     Link encap:Ethernet  HWaddr 40:2c:f4:ae:17:91
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

Remove microSD/SD card

sync
sudo umount /media/rootfs

2D/3D Video Acceleration via Etnaviv Project

Vivante GC320/GC880 (quad GC320/GC355/GC2000) 2D/3D Acceleration via Etnaviv
This sections assumes you have already installed your favorite xorg based window manager, such as lxde, lxqt, 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.
Verify your kernel has etnaviv support:

SOLO/DUAL

debian@arm:~$ dmesg | grep etnaviv
[    4.047928] etnaviv gpu-subsystem: bound 134000.gpu (ops gpu_ops)
[    4.047955] etnaviv gpu-subsystem: bound 130000.gpu (ops gpu_ops)
[    4.047968] etnaviv-gpu 134000.gpu: model: GC320, revision: 5007
[    4.090180] etnaviv-gpu 130000.gpu: model: GC880, revision: 5106

QUAD

debian@arm:~$ dmesg | grep etnaviv
[    4.025841] etnaviv gpu-subsystem: bound 134000.gpu (ops gpu_ops)
[    4.025868] etnaviv gpu-subsystem: bound 130000.gpu (ops gpu_ops)
[    4.025887] etnaviv gpu-subsystem: bound 2204000.gpu (ops gpu_ops)
[    4.025899] etnaviv-gpu 134000.gpu: model: GC320, revision: 5007
[    4.070139] etnaviv-gpu 130000.gpu: model: GC2000, revision: 5108
[    4.120479] etnaviv-gpu 2204000.gpu: model: GC355, revision: 1215
[    4.120492] etnaviv-gpu 2204000.gpu: Ignoring GPU with VG and FE2.0

edid parsing still seems hit and miss on the quad board, override default 1024x768 resolution via the video variable in uEnv.txt.
See other hints: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/fb/modedb.txt

cmdline=video=HDMI-A-1:1024x768@60e

1080p

cmdline=video=HDMI-A-1:1920x1080@60e

sudo apt-get update
sudo apt-get install xserver-xorg-video-armada-etnaviv

/etc/X11/xorg.conf

Section "Monitor"
        Identifier      "Builtin Default Monitor"
EndSection
Section "Device"
        Identifier      "Builtin Default fbdev Device 0"
        Driver          "armada"
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

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