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avafinger / bananapi-zero-ubuntu-base-minimal

BananaPi M2 Zero - Ubuntu Focal Base Minimal Image (Experimental) - U-Boot 2017.09 / Kernel 4.18.y / Kernel 4.19.y / Kernel 4.20.y / Kernel 5.3.y / Kernel 5.6.y / Kernel 5.7.y / Kernel 5.11.y
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banana-pi bananapi bluetooth boot firmware kernel m2z mainline-kernel mali phone u-boot ubuntu

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bananapi-zero-ubuntu-base-minimal

BananaPi M2 Zero - Ubuntu Xenial Base Minimal Image (Experimental) - U-Boot 2017.09 / Kernel 4.19.y (mainline - stable)

The Image comes with the minimum packages but you can install a full Desktop on top of this, see how at the end.

Introduction

This is a WiP, a bare minimum firmware image (CLI - command line interface) with basic configurations. Kernel used is Mainline kernel 4.17.y / 4.18.y / 4.20.y / 5.3.y / 5.6.y / 5.7.y / 5.11.y with some patches applied. The idea behind this firmware is to have a very basic sd card image and add packages to your need. Kernel 5.7.10 / 5.11.10 has support for OV5640.

Htop screenshot

Kernel history

power cicle the board

power cicle the board

Before upgrade, get rid of old kernel image not in use and check available space in /boot

    df -lh
    Filesystem      Size  Used Avail Use% Mounted on
    /dev/mmcblk0p2   15G  631M   13G   5% /
    devtmpfs        183M     0  183M   0% /dev
    tmpfs           248M     0  248M   0% /dev/shm
    tmpfs           248M   11M  237M   5% /run
    tmpfs           5.0M     0  5.0M   0% /run/lock
    tmpfs           248M     0  248M   0% /sys/fs/cgroup
    /dev/mmcblk0p1   93M   64M   23M  74% /boot

Make sure you have enough free space left, if not, issue in shell:

    sudo dpkg -l | grep linux-image
    ii  linux-image-4.17.12-m2z           1.0-5                                      armhf        Linux kernel 4.17.12-m2z
    ii  linux-image-4.17.8-m2z            1.0-1                                      armhf        Linux kernel 4.17.8-m2z
    ii  linux-image-4.17.9-m2z            1.0-2                                      armhf        Linux kernel 4.17.9-m2z
    ii  linux-image-4.18.6-m2z-otg-gadget 1.0-11                                     armhf        Linux kernel 4.18.6-m2z-otg-gadget

and check the current kernel you are running:

    uname -r 
    4.18.6-m2z-otg-gadget

so it is safe to get rid of unused kernel and free some space for the new one you want to install:

    sudo dpkg -r linux-image-4.17.12-m2z
    (Reading database ... 35990 files and directories currently installed.)
    Removing linux-image-4.17.12-m2z (1.0-5) ...

and now install the latest kernel:

    sudo dpkg -i linux-image-4.18.8-m2z-otg-gadget_1.0-12.deb
    Selecting previously unselected package linux-image-4.18.8-m2z-otg-gadget.
    (Reading database ... 33740 files and directories currently installed.)
    Preparing to unpack linux-image-4.18.8-m2z-otg-gadget_1.0-12.deb ...
    INFO: Updating Kernel 4.18.6-m2z-otg-gadget to 4.18.8-m2z-otg-gadget
    INFO: Updating...
    Unpacking linux-image-4.18.8-m2z-otg-gadget (1.0-12) ...
    Setting up linux-image-4.18.8-m2z-otg-gadget (1.0-12) ...
    OK: Kernel upgrade success! Please reboot with: sync && sudo reboot

and then:

    sync && sudo reboot

or better 

    sync && sudo shutdown -h now

power cicle the board and check kernel version again:

    uname -r 
    4.18.8-m2z-otg-gadget

rebuild bpi-m2z_boot.scr with:

    edit bpi-m2-zero_boot.cmd and change:

    setenv extra "no_console_suspend consoleblank=0 drm_leak_fbdev_smem=1"
    setenv bootargs "console=ttyS0,115200 earlyprintk rootfstype=ext4 root=/dev/mmcblk0p2 rw rootwait fsck.repair=${fsck.repair} panic=10 ${extra}"
    bootz ${kernel_addr} ${ramdisk_addr}:${ramdisk_size} ${dtb_addr}

rebuild with:

    sudo mkimage -C none -A arm -T script -d bpi-m2-zero_boot.cmd bpi-m2-zero_boot.scr

deb file in Release v10, grab the file with: 

    wget https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/download/v10/linux-image-4.19.6-m2z-otg-gadget_1.0-20.deb
    sudo dpkg -i linux-image-4.19.6-m2z-otg-gadget_1.0-20.deb
    sync && sudo reboot

deb file in Release v11, grab the file with: 

    wget https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/download/v11/linux-image-4.19.12-m2z-otg-gadget_1.0-21.deb
    sudo dpkg -i linux-image-4.19.12-m2z-otg-gadget_1.0-21.deb
    sync && sudo reboot

deb file in Release v12, grab the file with: 

    wget https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/download/v12/linux-image-4.20.0-m2z-otg-gadget_1.0-22.deb
    sudo dpkg -i linux-image-4.20.0-m2z-otg-gadget_1.0-22.deb
    sync && sudo reboot

Mainline stable Kernel 4.20.17 (Kodi)

This kernel is provided as a POC where you can build Kodi

Attention

The mali blobs used for the mali GBM are not compatible with the mali FBDEV You are required to update the mali with the wayland mali to be able to use GBM

Mainline stable kernel 4.20.17 ready to build Kodi:

To test mali GBM you can run kmscube To test cedrus you can run v4l2-request-test

VPU test

Testing cedrus on mainline is quite simple, run the tests below:

cd v4l2-request-test
sudo ./v4l2-request-test -l -f 25 -P ed-mpeg2

or

sudo ./v4l2-request-test -l -f 25 -P caminandes-h265

Mali GBM test

To test mali GBM you need to setup the mali blobs provided by https://github.com/bootlin/mali-blobs

sudo ./kmscube

When you run the kmscube you will see a cube spinning

hdmi-sound

To be able to acess and output sound to HDMI you need to update the file /etc/asound.conf

pcm.!default {
    type plug
    slave {
    pcm "hw:1,0"
    }
}

ctl.!default {
   type hw
   card 1
}

Reboot and test the HDMI sound:

sudo aplay /usr/share/sounds/alsa/Front_Left.wav

Check for the codecs:

cat /proc/asound/cards

 0 [Codec          ]: H3_Audio_Codec - H3 Audio Codec
              H3 Audio Codec
 1 [allwinnerhdmi  ]: allwinner_hdmi - allwinner,hdmi
              allwinner,hdmi

Instructions: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v3.7

Server edition with no HW acceleration ideal for embedded systems where you can build your server applications, kernels or install a small Desktop like LXDE.

Small footprint.

Fix: CPU Temp, DVFS, BT

https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v3.6

This is the ideal server like kernel where you can build your applications, kernels or install a small Desktop. There is no HW accelerations but it is with a small footprint.

https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v3.5

This is kernel 5.6.5 with mali GBM instead of panfrost

https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v3.3

How to install the new kernel on EOAN only:

you get similar output:

ubuntu@bpi-m2z:~$ sudo dpkg -i linux-image-5.6.5-r1_1.0-42.deb 
Selecting previously unselected package linux-image-5.6.5-r1.
(Reading database ... 56892 files and directories currently installed.)
Preparing to unpack linux-image-5.6.5-r1_1.0-42.deb ...
INFO: Updating Kernel 5.6.3 to 5.6.5-r1
INFO: Updating...
Unpacking linux-image-5.6.5-r1 (1.0-42) ...
Setting up linux-image-5.6.5-r1 (1.0-42) ...
OK: Kernel upgrade success! Please reboot with: sync && sudo reboot
ubuntu@bpi-m2z:~$ sync
ubuntu@bpi-m2z:~$ sudo reboot
Connection to 192.168.254.16 closed by remote host.
Connection to 192.168.254.16 closed.
alex@svn:/arm/ubuntu/friendlywrt-rk3328$ ssh ubuntu@192.168.254.16
ubuntu@192.168.254.16's password: 
Welcome to Ubuntu 19.10 (GNU/Linux 5.6.5-r1 armv7l)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

Last login: Mon Apr 20 23:04:40 2020 from 192.168.254.253
ubuntu@bpi-m2z:~$

Checking for the Bluetooth:

ubuntu@bpi-m2z:~$ hciconfig
hci0:   Type: Primary  Bus: UART
    BD Address: CC:B8:A8:A9:E5:67  ACL MTU: 1021:8  SCO MTU: 64:1
    UP RUNNING PSCAN 
    RX bytes:2184 acl:0 sco:0 events:214 errors:0
    TX bytes:36815 acl:0 sco:0 commands:215 errors:0

ubuntu@bpi-m2z:~$

https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v3.2

Testing HDMI sound output:

https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v3.1

Kernel Image: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v3.0

Kernel Image: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v2.9

Os Image: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v2.5

Mainline stable kernel 5.3.7 with:

OS Image: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v2.4

Mainline stable kernel 5.3.5 with:

deb package: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v2.3

Mainline stable kernel 5.3.4 with:

deb package: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v2.2

Mainline stable kernel 5.3.1 with:

Attention

If you aleady upgraded to the buggy kernel 5.3.1 you need to downgrade or create a clean installation.

deb package: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v2.1

Mainline Kernel 5.3.0-rc7

This is mainline Kernel 5.3.0-rc7.

Bootlo: https://gist.github.com/avafinger/9f6bee00e17b1f1d5d120e8b048eb40f Install the new Kernel (tested): https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v1.8

Install instructions:

sudo dpkg -i linux-image-5.3.0-rc7_1.0-27.deb

What's new with this Image v18 (mainline experimental)

Mainline Kernel 5.3.0-rc6

This is mainline Kernel 5.3.0-rc6.

v17 mailine kernel 5.3.0-rc6 (experimental) upgrade

deb package (BROKEN - DON'T USE):

Install the new Kernel: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v1.7

What's new with this Image v17 (mainline experimental)

Mainline Kernel 5.3.0-rc3 (Kodi)

This is mainline Kernel 5.3.0-rc3 ready to build and run Kodi.

Bootlog: https://gist.github.com/avafinger/5a172aaac7a97d6ee186498cd74896cf

Install the new Kernel: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v16

What's new with this Image v16 (mainline experimental)

What's new with this Image v14 (mainline experimental)

What's new with this Image v13 (mainline experimental)

What's new with this Image v12 (mainline experimental)

What's new with this Image v11 (LTS experimental)

What's new with this Image v10 (LTS experimental)

What's new with this Image v9 (LTS experimental)

What's new with this Image v8 (experimental)

Image upgraded to Kernel 4.20-rc3

What's new with this Image v7 (experimental)

Image upgraded to Kernel 4.20-rc2

What's new with this Image v6 (experimental)

Image upgraded to Kernel 4.19.1

What's new with this Image v5 (experimental)

Image upgraded to Kernel 4.19.0

* operating-points-v2 working as it should (next series will be 4.19.y)
* new devfreq temp
* cma memory-reservation for mali (need a revision)

Issue:

* mali does not work, freezes kernel completely (don't use it)

What's new with this Image v4

Image updated to Kernel 4.18.8 and has the following working:

* operating-points-v2 working as it should (next series will be 4.19.y)
* attempt to get bt working

Configuring ZRAM for the memory hungry stuffs

    sudo apt-get install zram-config
    sync && sudo reboot

On next reboot you will see if ZRAM is active:

    ubuntu@bpi-m2z:~$ ls /dev/zr*
    /dev/zram0  /dev/zram1  /dev/zram2  /dev/zram3

What's new with this Image v3

Image updated to Kernel 4.18.4 and has the following working:

* framebuffer with 1920x1080
* mali (3D GPU) - fbdev only (Thanks to Maxime Ripard from bootlin)
* eth0 up
* wlan0 up
* i2c enabled ( /dev/i2c-0 and /dev/i2c-1 )
* spi enabled ( /dev/spidev0.0 )
* bare minimum image. (**30 Mbytes of RAM used**)
* new rootfs from scratch
* ssh enabled
* new operating-points-v2 instead of old one (experimental)

What's new with this Image v2

Image updated to Kernel 4.17.17 and has the following working:

* framebuffer with 1920x1080
* mali (3D GPU) - fbdev only (Thanks to Maxime Ripard from bootlin)
* eth0 up
* wlan0 up
* i2c enabled ( /dev/i2c-0 and /dev/i2c-1 )
* spi enabled ( /dev/spidev0.0 )
* bare minimum image. (**30 Mbytes of RAM used**)
* new rootfs from scratch
* ssh enabled
* ZRAM / TUN modules enabled (but not configured)

Known issues:

* Hit ENTER twice to see the login prompt if you get a blank screen
* Boot with your monitor/display turned ON before you power the board
* HDMI driver is under development, Jernej (the dev. person behind the driver)
  has given some tips to fix this issue.
* Debian Bug report logs - #892229
  wireless-regdb: Missing support for kernel direct loading
  This seems to affect ubuntu 16.04 and 18.04.

To do before first boot:

Generate wpa-psk for Wifi AP, you can use wpa_passphrase from your linux box

Generate like so:

wpa_passphrase SSID 01234567890

where SSID is your Wifi SSID and 01234567890 your password

Edit and change accordingly:

iface wlan0 inet dhcp
wpa-ssid SSID
#psk="1234567890"
wpa-psk 93c8ff514dc02ae4944f89424d7b0d94f42ab3245cc413755ab655b8e344a2d9
dns-nameservers 8.8.8.8 8.8.4.4
wireless-power off

To do after first boot (Advanced users):

* build regulatory.db to your country for the wifi to get full power

* re-build wireless-regdb

Tips

Basic instructions to flash firmware to SD CARD

Image v2 (Kernel 4.17.4)

Image v1 (Kernel 4.15.y)

Before you boot, configure your wifi

Connecting to AP via Wifi

Wifi use wpa_supplicant to connect to AP. Before you boot the Image, please edit /etc/network/interfaces

iface wlan0 inet dhcp
wpa-ssid SSID <== change this
#psk="1234567890"
wpa-psk 93c8ff514dc02ae4944f89424d7b0d94f42ab3245cc413755ab655b8e344a2d9 <== change this
dns-nameservers 8.8.8.8 8.8.4.4
wireless-power off

You can login with

user: ubuntu

pasw: ubuntu

via serial debug or use ssh to connect remotely from your computer.

Conecting via ssh or putty: ssh ubuntu@IP where IP is the IP assigned to the board.

First thing you should do on the first login (for v1 only)

or in /etc/network/interfaces add this entry:

allow-hotplug wlan0
  iface wlan0 inet dhcp
  wpa-ssid your_ssid
  #psk="12345678901234567890"
  wpa-psk ababaf514dc02ae4944f89424d7b0d94f42ab3245cc413755ab655b8e344a2d9
  dns-nameservers 8.8.8.8 8.8.4.4
  wireless-power off <==== add this

reboot now:

sudo reboot

Mali benchmark

You can benchmark mali for fbdev, type in shell:

cd /home/ubuntu/mali/mali-fbdev/build/src
sudo ./glmark2-es2-fbdev

You can add FRONTBUFFER_LOCKING=1 to prevent tearing before running benchmark:

export FRONTBUFFER_LOCKING=1

[mali bechmark screenshot 1]

[mali bechmark screenshot 2]

[mali bechmark screenshot 3]

Installing a Full Desktop environment

After you setup a connection to internet, you can install a Desktop environment

sudo apt-get update
sudo apt-get dist-upgrade
sync
sudo apt-get install lxde

Wait until it finished and issue:

sync
sudo shutdown -h now (wait for the heartbeat to stop and cut power)

Reboot and you have LXDE Desktop

Bluetooth

The latest Kernel 4.20.0-rc3 upgrade has Bluetooth working. To be able to use bluetooth follow this instructions (it should be automated via systemd service but for the sake of documentation we do it manually) :

Edit the file /etc/modules and add bluetooth & hci_uart & rfcomm:

    # /etc/modules: kernel modules to load at boot time.
    #
    # This file contains the names of kernel modules that should be loaded
    # at boot time, one per line. Lines beginning with "#" are ignored.
    #xradio_wlan
    g_serial
    #xradio_wlan
    brcmfmac
    bluetooth
    hci_uart
    rfcomm

wait untill it finish with "Done setting line discpline" (CTRL+C to end) and then:

    hciattach /dev/ttyS1 any

We should have now our Bluetooth ready, you can check:

    hcitool devi
    Devices:
        hci0    11:22:33:44:55:66

Bluetooth - How to pair a Bluetooth Phone with command line

We are going to test our bluetooth setup conecting our board to a Phone (pair with a Phone). In a Desktop environment we have Blueman which would do it automagically but installing it would require a lot of packages and our goal here is to have the minimum installed otherwise you go with a complete Desktop.

For this, it is necessary to install pulseaudio or you will not be able to connect to a phone. (i think for keyboard or mouse is ok without pulse).

In order to have pulseaudio working we need to install ALSA and make it work.

    sudo apt-get install alsa-utils alsamixer libasound2 alsa-base

Edit (or create) a file /etc/asound.conf with the content:

    pcm.!default {
        type hw
        card 0
        device 0
    }

    ctl.!default {
        type hw
        card 0
    }

sync && reboot.

Check device:

    aplay -l
    **** List of PLAYBACK Hardware Devices ****
    card 0: Codec [H3 Audio Codec], device 0: CDC PCM Codec-0 []
      Subdevices: 1/1
      Subdevice #0: subdevice #0

We can check if ALSA is working, type in shell:

    alsamixer
    and un-mute and turn up the Line up and everything

and review:

    sudo amixer
    Simple mixer control 'Line In',0
      Capabilities: pvolume pvolume-joined pswitch cswitch
      Playback channels: Front Left - Front Right
      Capture channels: Front Left - Front Right
      Limits: Playback 0 - 7
      Front Left: Playback 5 [71%] [3.00dB] [off] Capture [off]
      Front Right: Playback 5 [71%] [3.00dB] [off] Capture [off]
    Simple mixer control 'Line Out',0
      Capabilities: pvolume pvolume-joined pswitch
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 25 [81%] [-9.00dB] [on]
      Front Right: Playback 25 [81%] [-9.00dB] [on]
    Simple mixer control 'Line Out Source',0
      Capabilities: penum
      Items: 'Stereo' 'Mono Differential'
      Item0: 'Stereo'
      Item1: 'Stereo'
    Simple mixer control 'Mic1',0
      Capabilities: pvolume pvolume-joined pswitch cswitch
      Playback channels: Front Left - Front Right
      Capture channels: Front Left - Front Right
      Limits: Playback 0 - 7
      Front Left: Playback 3 [43%] [0.00dB] [off] Capture [off]
      Front Right: Playback 3 [43%] [0.00dB] [off] Capture [off]
    Simple mixer control 'Mic1 Boost',0
      Capabilities: volume volume-joined
      Playback channels: Mono
      Capture channels: Mono
      Limits: 0 - 7
      Mono: 4 [57%] [33.00dB]
    Simple mixer control 'Mic2',0
      Capabilities: pvolume pvolume-joined pswitch cswitch
      Playback channels: Front Left - Front Right
      Capture channels: Front Left - Front Right
      Limits: Playback 0 - 7
      Front Left: Playback 3 [43%] [0.00dB] [off] Capture [off]
      Front Right: Playback 3 [43%] [0.00dB] [off] Capture [off]
    Simple mixer control 'Mic2 Boost',0
      Capabilities: volume volume-joined
      Playback channels: Mono
      Capture channels: Mono
      Limits: 0 - 7
      Mono: 4 [57%] [33.00dB]
    Simple mixer control 'Mixer',0
      Capabilities: cswitch
      Capture channels: Front Left - Front Right
      Front Left: Capture [off]
      Front Right: Capture [off]
    Simple mixer control 'Mixer Reversed',0
      Capabilities: cswitch
      Capture channels: Front Left - Front Right
      Front Left: Capture [off]
      Front Right: Capture [off]
    Simple mixer control 'ADC Gain',0
      Capabilities: cvolume cvolume-joined
      Capture channels: Mono
      Limits: Capture 0 - 7
      Mono: Capture 3 [43%] [0.00dB]
    Simple mixer control 'DAC',0
      Capabilities: pvolume pvolume-joined pswitch
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 63
      Mono:
      Front Left: Playback 45 [71%] [-20.88dB] [on]
      Front Right: Playback 45 [71%] [-20.88dB] [on]
    Simple mixer control 'DAC Reversed',0
      Capabilities: pswitch
      Playback channels: Front Left - Front Right
      Mono:
      Front Left: Playback [off]
      Front Right: Playback [off]

Testing ALSA:

    aplay /usr/share/sounds/alsa/Front_Center.wav             
    Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono

Now install pulse:

    sudo apt-get install pulseaudio pulseaudio-module-bluetooth

sync && reboot.

Now check if pulse is running:

    ps -e|grep pulse
    1187 ?        00:00:00 pulseaudio

If everything is OK (if not, you should go back and figure out what went wrong) we can now pair with a phone using bluetooth. Type in shell (if you have not done this yet):

    sudo su (become root)
    brcm_patchram_plus -d --patchram /lib/firmware/ap6212/bcm43438a1.hcd --enable_hci --bd_addr 11:22:33:44:55:66 --no2bytes --tosleep 5000 /dev/ttyS1
    Done setting line discpline (^C)
    hciattach /dev/ttyS1 any
    hciconfig list
    hci0:   Type: BR/EDR  Bus: UART
        BD Address: 11:22:33:44:55:66  ACL MTU: 1021:8  SCO MTU: 64:1
        UP RUNNING 
        RX bytes:1214 acl:0 sco:0 events:42 errors:0
        TX bytes:756 acl:0 sco:0 commands:42 errors:0
    hciconfig -a
    hci0:   Type: BR/EDR  Bus: UART
        BD Address: 11:22:33:44:55:66  ACL MTU: 1021:8  SCO MTU: 64:1
        UP RUNNING 
        RX bytes:934 acl:0 sco:0 events:39 errors:0
        TX bytes:744 acl:0 sco:0 commands:39 errors:0
        Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
        Link policy: RSWITCH SNIFF 
        Link mode: SLAVE ACCEPT 
        Name: 'bpi-m2z'
        Class: 0x000000
        Service Classes: Unspecified
        Device Class: Miscellaneous, 
        HCI Version: 4.0 (0x6)  Revision: 0x6a
        LMP Version: 4.0 (0x6)  Subversion: 0x2209
        Manufacturer: Broadcom Corporation (15)

We are ready to pair. Type in shell (with your phone with bluetooth on):

    bluetoothctl -a
    [NEW] Controller 22:22:33:44:55:66 bpi-m2z [default]
    Agent registered
    [bluetooth]# devices
    [bluetooth]# list
    Controller 22:22:33:44:55:66 bpi-m2z [default]
    [bluetooth]# power on
    Changing power on succeeded
    [bluetooth]# agent on
    Agent is already registered
    [bluetooth]# default-agent
    Default agent request successful
    [bluetooth]# scan on
    Discovery started
    [CHG] Controller 22:22:33:44:55:66 Discovering: yes
    [NEW] Device 00:17:CA:F7:38:18 Haier HW-W910
    [bluetooth]# pair 00:17:CA:F7:38:18
    Attempting to pair with 00:17:CA:F7:38:18
    [CHG] Device 00:17:CA:F7:38:18 Connected: yes
    Request confirmation
    [agent] Confirm passkey 736813 (yes/no): yes
    [CHG] Device 00:17:CA:F7:38:18 Modalias: usb:v000Ap0000d0000
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 00001105-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 0000110a-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 0000110c-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 00001112-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 00001116-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 0000111f-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 0000112f-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 00001132-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 00001200-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 00001800-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 UUIDs: 00001801-0000-1000-8000-00805f9b34fb
    [CHG] Device 00:17:CA:F7:38:18 Paired: yes
    Pairing successful
    [CHG] Device 00:17:CA:F7:38:18 Connected: no
    [bluetooth]# devices
    Device 00:17:CA:F7:38:18 Haier HW-W910
    [bluetooth]# list
    Controller 22:22:33:44:55:66 bpi-m2z [default]
    [bluetooth]# info 00:17:CA:F7:38:18
    Device 00:17:CA:F7:38:18
        Name: Haier HW-W910
        Alias: Haier HW-W910
        Class: 0x5a020c
        Icon: phone
        Paired: yes
        Trusted: no
        Blocked: no
        Connected: no
        LegacyPairing: no
        UUID: OBEX Object Push          (00001105-0000-1000-8000-00805f9b34fb)
        UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
        UUID: Headset AG                (00001112-0000-1000-8000-00805f9b34fb)
        UUID: NAP                       (00001116-0000-1000-8000-00805f9b34fb)
        UUID: Handsfree Audio Gateway   (0000111f-0000-1000-8000-00805f9b34fb)
        UUID: Phonebook Access Server   (0000112f-0000-1000-8000-00805f9b34fb)
        UUID: Message Access Server     (00001132-0000-1000-8000-00805f9b34fb)
        UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
        UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
        UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
        Modalias: usb:v000Ap0000d0000
        RSSI: -42
    [bluetooth]# list-attributes 00:17:CA:F7:38:18
    [bluetooth]# connect 00:17:CA:F7:38:18
    Attempting to connect to 00:17:CA:F7:38:18
    [CHG] Device 00:17:CA:F7:38:18 Connected: yes
    Connection successful
    [Haier HW-W910]# list-attributes 00:17:CA:F7:38:18
    [Haier HW-W910]# disconnect 00:17:CA:F7:38:18
    Attempting to disconnect from 00:17:CA:F7:38:18
    Successful disconnected
    [CHG] Device 00:17:CA:F7:38:18 Connected: no
    [bluetooth]# list-attributes 00:17:CA:F7:38:18
    [bluetooth]# info 00:17:CA:F7:38:18
    Device 00:17:CA:F7:38:18
        Name: Haier HW-W910
        Alias: Haier HW-W910
        Class: 0x5a020c
        Icon: phone
        Paired: yes
        Trusted: no
        Blocked: no
        Connected: no
        LegacyPairing: no
        UUID: OBEX Object Push          (00001105-0000-1000-8000-00805f9b34fb)
        UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
        UUID: Headset AG                (00001112-0000-1000-8000-00805f9b34fb)
        UUID: NAP                       (00001116-0000-1000-8000-00805f9b34fb)
        UUID: Handsfree Audio Gateway   (0000111f-0000-1000-8000-00805f9b34fb)
        UUID: Phonebook Access Server   (0000112f-0000-1000-8000-00805f9b34fb)
        UUID: Message Access Server     (00001132-0000-1000-8000-00805f9b34fb)
        UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
        UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
        UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
        Modalias: usb:v000Ap0000d0000
        RSSI: -42
    [bluetooth]# connect 00:17:CA:F7:38:18
    Attempting to connect to 00:17:CA:F7:38:18
    [CHG] Device 00:17:CA:F7:38:18 Connected: yes
    Connection successful
    [Haier HW-W910]# trust 00:17:CA:F7:38:18
    [CHG] Device 00:17:CA:F7:38:18 Trusted: yes
    Changing 00:17:CA:F7:38:18 trust succeeded
    [Haier HW-W910]# info 00:17:CA:F7:38:18
    Device 00:17:CA:F7:38:18
        Name: Haier HW-W910
        Alias: Haier HW-W910
        Class: 0x5a020c
        Icon: phone
        Paired: yes
        Trusted: yes
        Blocked: no
        Connected: yes
        LegacyPairing: no
        UUID: OBEX Object Push          (00001105-0000-1000-8000-00805f9b34fb)
        UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
        UUID: Headset AG                (00001112-0000-1000-8000-00805f9b34fb)
        UUID: NAP                       (00001116-0000-1000-8000-00805f9b34fb)
        UUID: Handsfree Audio Gateway   (0000111f-0000-1000-8000-00805f9b34fb)
        UUID: Phonebook Access Server   (0000112f-0000-1000-8000-00805f9b34fb)
        UUID: Message Access Server     (00001132-0000-1000-8000-00805f9b34fb)
        UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
        UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
        UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
        Modalias: usb:v000Ap0000d0000
        RSSI: -42
    [Haier HW-W910]# list-attributes 00:17:CA:F7:38:18
    [Haier HW-W910]# untrust 00:17:CA:F7:38:18
    [CHG] Device 00:17:CA:F7:38:18 Trusted: no
    Changing 00:17:CA:F7:38:18 untrust succeeded
    [Haier HW-W910]# disconnect 00:17:CA:F7:38:18
    Attempting to disconnect from 00:17:CA:F7:38:18
    Successful disconnected
    [CHG] Device 00:17:CA:F7:38:18 Connected: no
    [bluetooth]# remove 00:17:CA:F7:38:18
    [DEL] Device 00:17:CA:F7:38:18 Haier HW-W910
    Device has been removed
    [bluetooth]# list
    Controller 22:22:33:44:55:66 bpi-m2z [default]
    [NEW] Device 00:17:CA:F7:38:18 Haier HW-W910
    [bluetooth]# scan off
    [CHG] Device 00:17:CA:F7:38:18 RSSI is nil
    Discovery stopped
    [CHG] Controller 22:22:33:44:55:66 Discovering: no
    [bluetooth]# 
    [bluetooth]# quit
    Agent unregistered
    [DEL] Controller 22:22:33:44:55:66 bpi-m2z [default]

And finally you can check the Services of your Bluetooth Phone:

    dptool browse 00:17:CA:F7:38:18|grep "Service Name"
    Service Name: Generic Access Profile
    Service Name: Generic Attribute Profile
    Service Name: Audio Source
    Service Name: AVRCP TG
    Service Name: Voice Gateway
    Service Name: OBEX Object Push
    Service Name: Voice Gateway
    Service Name: OBEX Phonebook Access Server
    Service Name: Network service
    Service Name: SMS/MMS Message Access
    Service Name: Email Message Access

Bluetooth

Enbale Bluetooth on next boot (permanently)

To enable Bluetooth (BT) for every new boot, edit /etc/rc.local and add the command:

    #!/bin/sh -e
    #
    # rc.local
    #
    # This script is executed at the end of each multiuser runlevel.
    # Make sure that the script will "exit 0" on success or any other
    # value on error.
    #
    # In order to enable or disable this script just change the execution
    # bits.
    #
    # By default this script does nothing.

    # ------------------------
    # ------ enable BT -------
    # ------------------------
    # borrowed from madscientist42
    # Compute a BD_ADDR.  We're going to use pieces of the device serial number for the LAP part.
    SERIAL=`cat /proc/device-tree/serial-number | cut -c9-`
    B1=`echo $SERIAL | cut -c3-4`
    B2=`echo $SERIAL | cut -c5-6`
    B3=`echo $SERIAL | cut -c7-8`
    BDADDR=`printf b8:27:eb:%02x:%02x:%02x $((0x$B1 ^ 0xaa)) $((0x$B2 ^ 0xaa)) $((0x$B3 ^ 0xaa))`
    brcm_patchram_plus -d --patchram /lib/firmware/ap6212/bcm43438a1.hcd --enable_hci --bd_addr $BDADDR --no2bytes --tosleep 5000 /dev/ttyS1  > /tmp/bt.log 2>&1 &
    # -- BT end --------------

    exit 0
    #!/bin/bash

Make sure /etc/rc.local has run permissions:

    sudo chmod +x /etc/rc.local

Build your own Kernel

Here are the instructions for building your own kernel on board.

Create directory:

mkdir -p linux
cd linux
export KVD=$PWD

Grab your kernel (here we get linus torvalds kernel 5.2 as an example): https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/refs/tags

wget https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/snapshot/linux-5.2.tar.gz
tar -xvpzf linux-5.2.tar.gz
cd linux-5.2

Build:

make sunxi_defconfig
#make  menuconfig (if you want to add or change kernel modules)
make  oldconfig
make INSTALL_MOD_PATH=output zImage 
make INSTALL_MOD_PATH=output dtbs
make INSTALL_MOD_PATH=output modules
make INSTALL_MOD_PATH=output modules_install
export KV=$(strings ./arch/arm/boot/Image |grep "Linux version"|awk '{print $3}')
make INSTALL_HDR_PATH=output/usr/src/linux-headers-${KV} headers_install

Install:

sudo cp -vfr ./output/* /
sync
sudo cp -fv ./arch/arm/boot/zImage /boot/zImage_${KV}
sync
sudo cp -fv ./arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dtb /boot/bpi-m2-zero.dtb_${KV}
sync

Make it current kernel

cd /boot
sudo ln -sf zImage_${KV} zImage
sudo ln -sf bpi-m2-zero.dtb_${KV} bpi-m2-zero.dtb
cd ${KVD}
sync

Reboot

sudo reboot

You can add or change kernel modules at any time and modify your dts to get the hw peripherals to work properly. From now on you are at your own.

Working with Cameras

Camera streaming side by side

There is support for camera in mainline kernel. You can use a USB camera or the OV5640 camera (DVP). In general, USB camera are slower than the DVP camera, you can stream video at 20 FPS with DVP camera and 10 FPS for the USB camera. The quality of the image is highly dependent on the lens used. Using a sensor without AF is recommended if you use mainline kernel.

USB Camera

Once you attach the USB camera you will see the device node representing the camera, that is:

ubuntu@bpi-m2z:~$ ll /dev/video*
crw-rw---- 1 root video 81, 0 Apr 11  2019 /dev/video0
crw-rw---- 1 root video 81, 1 Apr 11  2019 /dev/video1
crw-rw---- 1 root video 81, 3 Nov  8 13:29 /dev/video2
crw-rw---- 1 root video 81, 4 Nov  8 13:29 /dev/video3

and media information in:

ubuntu@bpi-m2z:~$ ll /dev/media*
crw-rw-rw- 1 root video 243, 0 Apr 11  2019 /dev/media0
crw-rw-rw- 1 root video 243, 1 Apr 11  2019 /dev/media1
crw-rw-rw- 1 root video 243, 2 Nov  8 13:29 /dev/media2

To find about the topology of the camera you would do:

ubuntu@bpi-m2z:~$ media-ctl --device /dev/media2 --print-topology
Media controller API version 5.7.10

Media device information
------------------------
driver          uvcvideo
model           USB 2.0 Camera: HD 720P Webcam
serial          
bus info        usb-1c1a000.usb-1.2
hw revision     0x0
driver version  5.7.10

Device topology
- entity 1: USB 2.0 Camera: HD 720P Webcam (1 pad, 1 link)
        type Node subtype V4L flags 1
        device node name /dev/video2
    pad0: Sink
        <- "Extension 4":1 [ENABLED,IMMUTABLE]

- entity 4: USB 2.0 Camera: HD 720P Webcam (0 pad, 0 link)
        type Node subtype V4L flags 0
        device node name /dev/video3

- entity 8: Extension 4 (2 pads, 2 links)
        type V4L2 subdev subtype Unknown flags 0
    pad0: Sink
        <- "Processing 3":1 [ENABLED,IMMUTABLE]
    pad1: Source
        -> "USB 2.0 Camera: HD 720P Webcam":0 [ENABLED,IMMUTABLE]

- entity 11: Processing 3 (2 pads, 2 links)
         type V4L2 subdev subtype Unknown flags 0
    pad0: Sink
        <- "Camera 1":0 [ENABLED,IMMUTABLE]
    pad1: Source
        -> "Extension 4":0 [ENABLED,IMMUTABLE]

- entity 14: Camera 1 (1 pad, 1 link)
         type V4L2 subdev subtype Unknown flags 0
    pad0: Source
        -> "Processing 3":0 [ENABLED,IMMUTABLE]

We have our HD 720P USB camera attached to the USB 2.0 slot. The kernel created /dev/video2 and /dev/media2 nodes for us. You can test the streaming with USB camera using mjpg_streamer like this:

mjpg_streamer -i "./input_uvc.so -d /dev/video2 -r 1280x720 -q 90 -n" -o "./output_http.so -p 8088 -w ./www"

OV5640 DVP camera

Testing video streaming with OV5640 requires you to tell kernel the window size and format of the frame unless you use the default 640x480 Pixels in size and YUV420P format

In our example we find the frame format our DVP sensor can be used:

ubuntu@bpi-m2z:~$ media-ctl -v --device /dev/media1 --known-mbus-fmts
RGB444_1X12                     0x1016
RGB444_2X8_PADHI_BE             0x1001
RGB444_2X8_PADHI_LE             0x1002
RGB555_2X8_PADHI_BE             0x1003
RGB555_2X8_PADHI_LE             0x1004
RGB565_1X16                     0x1017
BGR565_2X8_BE                   0x1005
BGR565_2X8_LE                   0x1006
RGB565_2X8_BE                   0x1007
RGB565_2X8_LE                   0x1008
RGB666_1X18                     0x1009
RBG888_1X24                     0x100e
RGB666_1X24_CPADHI              0x1015
RGB666_1X7X3_SPWG               0x1010
BGR888_1X24                     0x1013
GBR888_1X24                     0x1014
RGB888_1X24                     0x100a
RGB888_2X12_BE                  0x100b
RGB888_2X12_LE                  0x100c
RGB888_1X7X4_SPWG               0x1011
RGB888_1X7X4_JEIDA              0x1012
ARGB8888_1X32                   0x100d
RGB888_1X32_PADHI               0x100f
RGB101010_1X30                  0x1018
RGB121212_1X36                  0x1019
RGB161616_1X48                  0x101a
Y8_1X8                          0x2001
UV8_1X8                         0x2015
UYVY8_1_5X8                     0x2002
VYUY8_1_5X8                     0x2003
YUYV8_1_5X8                     0x2004
YVYU8_1_5X8                     0x2005
UYVY8_2X8                       0x2006
VYUY8_2X8                       0x2007
YUYV8_2X8                       0x2008
YVYU8_2X8                       0x2009
Y10_1X10                        0x200a
Y10_2X8_PADHI_LE                0x202c
UYVY10_2X10                     0x2018
VYUY10_2X10                     0x2019
YUYV10_2X10                     0x200b
YVYU10_2X10                     0x200c
Y12_1X12                        0x2013
UYVY12_2X12                     0x201c
VYUY12_2X12                     0x201d
YUYV12_2X12                     0x201e
YVYU12_2X12                     0x201f
UYVY8_1X16                      0x200f
VYUY8_1X16                      0x2010
YUYV8_1X16                      0x2011
YVYU8_1X16                      0x2012
YDYUYDYV8_1X16                  0x2014
UYVY10_1X20                     0x201a
VYUY10_1X20                     0x201b
YUYV10_1X20                     0x200d
YVYU10_1X20                     0x200e
VUY8_1X24                       0x2024
YUV8_1X24                       0x2025
UYYVYY8_0_5X24                  0x2026
UYVY12_1X24                     0x2020
VYUY12_1X24                     0x2021
YUYV12_1X24                     0x2022
YVYU12_1X24                     0x2023
YUV10_1X30                      0x2016
UYYVYY10_0_5X30                 0x2027
AYUV8_1X32                      0x2017
UYYVYY12_0_5X36                 0x2028
YUV12_1X36                      0x2029
YUV16_1X48                      0x202a
UYYVYY16_0_5X48                 0x202b
SBGGR8_1X8                      0x3001
SGBRG8_1X8                      0x3013
SGRBG8_1X8                      0x3002
SRGGB8_1X8                      0x3014
SBGGR10_ALAW8_1X8               0x3015
SGBRG10_ALAW8_1X8               0x3016
SGRBG10_ALAW8_1X8               0x3017
SRGGB10_ALAW8_1X8               0x3018
SBGGR10_DPCM8_1X8               0x300b
SGBRG10_DPCM8_1X8               0x300c
SGRBG10_DPCM8_1X8               0x3009
SRGGB10_DPCM8_1X8               0x300d
SBGGR10_2X8_PADHI_BE            0x3003
SBGGR10_2X8_PADHI_LE            0x3004
SBGGR10_2X8_PADLO_BE            0x3005
SBGGR10_2X8_PADLO_LE            0x3006
SBGGR10_1X10                    0x3007
SGBRG10_1X10                    0x300e
SGRBG10_1X10                    0x300a
SRGGB10_1X10                    0x300f
SBGGR12_1X12                    0x3008
SGBRG12_1X12                    0x3010
SGRBG12_1X12                    0x3011
SRGGB12_1X12                    0x3012
SBGGR14_1X14                    0x3019
SGBRG14_1X14                    0x301a
SGRBG14_1X14                    0x301b
SRGGB14_1X14                    0x301c
SBGGR16_1X16                    0x301d
SGBRG16_1X16                    0x301e
SGRBG16_1X16                    0x301f
SRGGB16_1X16                    0x3020
JPEG_1X8                        0x4001
S5C_UYVY_JPEG_1X8               0x5001
AHSV8888_1X32                   0x6001

In order to get maximum speed and optimization for streaming a video we use the MJPEG format that delivers a compressed JPEG image to be sent over the Wifi. We need an optimized mjp_streamer which will grab the image and send MJPEG to the browser at the other side.

IP: 192.168.254 (our wifi ip from ifconfig) Port: 8080

ubuntu@bpi-m2z:~$ ifconfig
eth0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
    ether 0a:e8:6a:5d:c9:67  txqueuelen 1000  (Ethernet)
    RX packets 0  bytes 0 (0.0 B)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 0  bytes 0 (0.0 B)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    device interrupt 39  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
    inet 127.0.0.1  netmask 255.0.0.0
    inet6 ::1  prefixlen 128  scopeid 0x10<host>
    loop  txqueuelen 1000  (Local Loopback)
    RX packets 80  bytes 5920 (5.9 KB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 80  bytes 5920 (5.9 KB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet 192.168.254.40  netmask 255.255.0.0  broadcast 192.168.255.255
    inet6 2804:7f4:3580:4e5c:54d7:6af3:db1c:17d7  prefixlen 64  scopeid 0x0<global>
    inet6 fe80::ceb8:a8ff:fea9:e566  prefixlen 64  scopeid 0x20<link>
    inet6 2804:7f4:3580:4e5c:ceb8:a8ff:fea9:e566  prefixlen 64  scopeid 0x0<global>
    ether cc:b8:a8:a9:e5:66  txqueuelen 1000  (Ethernet)
    RX packets 1642540  bytes 99599273 (99.5 MB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 5776910  bytes 4248531828 (4.2 GB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Streaming video

Ubuntu 20.04 LTS

Minimal image with the following support enabled:

Pre-built OS Image here: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v3.9

Pre-built OS Image with Kernel 5.7.10 and 5.11.10 https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v3.10

Kernel headers

The missing kernel headers are here: https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/tag/v3.11

Releases

Some pre-built firmware and linux-image have been released here:

https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases

Credits

Kernel 4.20.0-rc3 is based on mainline kernel (https://www.kernel.org/) (linux-sunxi effort).

Kernel 5.7.y is based on mainline kernel (https://www.kernel.org/) (linux-sunxi effort).

Kernel 5.11.y is based on stable kernel (https://www.kernel.org/) (linux-sunxi effort).

Mali is based on the work done by MRipard (Bootlin)

Thanks to Nora Lee (FOXCONN) for the sample.

bootlog of bpi-m2z with Kernel 4.20.0-rc3

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.20.0-rc3-m2z-otg-gadget (alex@svn) (gcc version 7.3.1 20180425 [linaro-7.3-2018.05 revision d29120a424ecfbc167ef90065c0eeb7f91977701] (Linaro GCC 7.3-2018.05)) #1 SMP Mon Nov 19 19:37:43 -02 2018
[    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: Banana Pi M2 Zero
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] Reserved memory: created CMA memory pool at 0x4a000000, size 96 MiB
[    0.000000] OF: reserved mem: initialized node cma@4a000000, compatible id shared-dma-pool
[    0.000000] On node 0 totalpages: 131072
[    0.000000]   Normal zone: 1024 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 131072 pages, LIFO batch:31
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: Using PSCI v0.1 Function IDs from DT
[    0.000000] random: get_random_bytes called from start_kernel+0xa0/0x3f4 with crng_init=0
[    0.000000] percpu: Embedded 16 pages/cpu @(ptrval) s35020 r8192 d22324 u65536
[    0.000000] pcpu-alloc: s35020 r8192 d22324 u65536 alloc=16*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 130048
[    0.000000] Kernel command line: console=ttyS0,115200 earlyprintk rootfstype=ext4 root=/dev/mmcblk0p2 rw rootwait fsck.repair=yes panic=10 no_console_suspend consoleblank=0 drm_leak_fbdev_smem=1
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 407036K/524288K available (8192K kernel code, 341K rwdata, 1960K rodata, 1024K init, 268K bss, 18948K reserved, 98304K cma-reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
                   vector  : 0xffff0000 - 0xffff1000   (   4 kB)
                   fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
                   vmalloc : 0xe0800000 - 0xff800000   ( 496 MB)
                   lowmem  : 0xc0000000 - 0xe0000000   ( 512 MB)
                   pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
                   modules : 0xbf000000 - 0xbfe00000   (  14 MB)
                     .text : 0x(ptrval) - 0x(ptrval)   (9184 kB)
                     .init : 0x(ptrval) - 0x(ptrval)   (1024 kB)
                     .data : 0x(ptrval) - 0x(ptrval)   ( 342 kB)
                      .bss : 0x(ptrval) - 0x(ptrval)   ( 269 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
[    0.000006] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
[    0.000018] Switching to timer-based delay loop, resolution 41ns
[    0.000214] Console: colour dummy device 80x30
[    0.000267] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.000282] pid_max: default: 32768 minimum: 301
[    0.000433] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000448] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.001143] CPU: Testing write buffer coherency: ok
[    0.001605] CPU0: update cpu_capacity 1024
[    0.001617] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.002178] Setting up static identity map for 0x40100000 - 0x40100060
[    0.002331] rcu: Hierarchical SRCU implementation.
[    0.003088] smp: Bringing up secondary CPUs ...
[    0.013872] CPU1: update cpu_capacity 1024
[    0.013878] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.024754] CPU2: update cpu_capacity 1024
[    0.024760] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.035538] CPU3: update cpu_capacity 1024
[    0.035543] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.035629] smp: Brought up 1 node, 4 CPUs
[    0.035658] SMP: Total of 4 processors activated (192.00 BogoMIPS).
[    0.035665] CPU: All CPU(s) started in HYP mode.
[    0.035671] CPU: Virtualization extensions available.
[    0.036727] devtmpfs: initialized
[    0.043445] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[    0.043696] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.043722] futex hash table entries: 1024 (order: 4, 65536 bytes)
[    0.047452] pinctrl core: initialized pinctrl subsystem
[    0.048536] NET: Registered protocol family 16
[    0.050400] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.051329] cpuidle: using governor menu
[    0.051686] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.051696] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.069898] SCSI subsystem initialized
[    0.070151] libata version 3.00 loaded.
[    0.070373] usbcore: registered new interface driver usbfs
[    0.070421] usbcore: registered new interface driver hub
[    0.070503] usbcore: registered new device driver usb
[    0.070816] pps_core: LinuxPPS API ver. 1 registered
[    0.070824] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.070850] PTP clock support registered
[    0.071236] Advanced Linux Sound Architecture Driver Initialized.
[    0.072602] clocksource: Switched to clocksource arch_sys_counter
[    0.072746] VFS: Disk quotas dquot_6.6.0
[    0.072813] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.080888] NET: Registered protocol family 2
[    0.081871] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
[    0.081901] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    0.081953] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[    0.082017] TCP: Hash tables configured (established 4096 bind 4096)
[    0.082147] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.082194] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.082449] NET: Registered protocol family 1
[    0.083046] RPC: Registered named UNIX socket transport module.
[    0.083059] RPC: Registered udp transport module.
[    0.083065] RPC: Registered tcp transport module.
[    0.083071] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.083755] Unpacking initramfs...
[    0.127611] Freeing initrd memory: 960K
[    0.129426] Initialise system trusted keyrings
[    0.129818] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[    0.137120] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.138629] NFS: Registering the id_resolver key type
[    0.138670] Key type id_resolver registered
[    0.138676] Key type id_legacy registered
[    0.138693] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.138702] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[    0.139599] fuse init (API version 7.28)
[    0.140049] SGI XFS with ACLs, security attributes, realtime, no debug enabled
[    0.148962] Key type asymmetric registered
[    0.148986] Asymmetric key parser 'x509' registered
[    0.149085] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
[    0.149098] io scheduler noop registered
[    0.149104] io scheduler deadline registered
[    0.149331] io scheduler cfq registered (default)
[    0.149342] io scheduler mq-deadline registered
[    0.149350] io scheduler kyber registered
[    0.150418] sun4i-usb-phy 1c19400.phy: Couldn't request ID GPIO
[    0.154712] sun8i-h3-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[    0.156494] sun8i-h3-r-pinctrl 1f02c00.pinctrl: initialized sunXi PIO driver
[    0.205952] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    0.208391] printk: console [ttyS0] disabled
[    0.228619] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 44, base_baud = 1500000) is a U6_16550A
[    0.950227] printk: console [ttyS0] enabled
[    0.975650] 1c28400.serial: ttyS1 at MMIO 0x1c28400 (irq = 45, base_baud = 1500000) is a U6_16550A
[    0.997540] sun4i-drm display-engine: bound 1100000.mixer (ops 0xc095568c)
[    1.004716] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops 0xc095275c)
[    1.012419] sun8i-dw-hdmi 1ee0000.hdmi: 1ee0000.hdmi supply hvcc not found, using dummy regulator
[    1.021366] sun8i-dw-hdmi 1ee0000.hdmi: Linked as a consumer to regulator.0
[    1.029143] sun8i-dw-hdmi 1ee0000.hdmi: Detected HDMI TX controller v1.32a with HDCP (sun8i_dw_hdmi_phy)
[    1.039027] sun8i-dw-hdmi 1ee0000.hdmi: registered DesignWare HDMI I2C bus driver
[    1.046829] sun4i-drm display-engine: bound 1ee0000.hdmi (ops 0xc0955034)
[    1.053635] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.060240] [drm] No driver support for vblank timestamp query.
[    1.268718] random: fast init done
[    1.599232] Console: switching to colour frame buffer device 240x67
[    1.638833] sun4i-drm display-engine: fb0: DRM emulated frame buffer device
[    1.646284] [drm] Initialized sun4i-drm 1.0.0 20150629 for display-engine on minor 0
[    1.657027] libphy: Fixed MDIO Bus: probed
[    1.661316] CAN device driver interface
[    1.665835] dwmac-sun8i 1c30000.ethernet: PTP uses main clock
[    1.671616] dwmac-sun8i 1c30000.ethernet: No regulator found
[    1.677662] dwmac-sun8i 1c30000.ethernet: No HW DMA feature register supported
[    1.684900] dwmac-sun8i 1c30000.ethernet: RX Checksum Offload Engine supported
[    1.692124] dwmac-sun8i 1c30000.ethernet: COE Type 2
[    1.697094] dwmac-sun8i 1c30000.ethernet: TX Checksum insertion supported
[    1.703897] dwmac-sun8i 1c30000.ethernet: Normal descriptors
[    1.709557] dwmac-sun8i 1c30000.ethernet: Chain mode enabled
[    1.715365] libphy: stmmac: probed
[    1.719299] dwmac-sun8i 1c30000.ethernet: Found internal PHY node
[    1.725528] libphy: mdio_mux: probed
[    1.729119] dwmac-sun8i 1c30000.ethernet: Switch mux to internal PHY
[    1.735484] dwmac-sun8i 1c30000.ethernet: Powering internal PHY
[    1.742359] libphy: mdio_mux: probed
[    1.746460] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.752997] ehci-platform: EHCI generic platform driver
[    1.758425] ehci-platform 1c1a000.usb: EHCI Host Controller
[    1.764033] ehci-platform 1c1a000.usb: new USB bus registered, assigned bus number 1
[    1.772190] ehci-platform 1c1a000.usb: irq 27, io mem 0x01c1a000
[    1.802613] ehci-platform 1c1a000.usb: USB 2.0 started, EHCI 1.00
[    1.808902] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.20
[    1.817177] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.824409] usb usb1: Product: EHCI Host Controller
[    1.829281] usb usb1: Manufacturer: Linux 4.20.0-rc3-m2z-otg-gadget ehci_hcd
[    1.836330] usb usb1: SerialNumber: 1c1a000.usb
[    1.841429] hub 1-0:1.0: USB hub found
[    1.845232] hub 1-0:1.0: 1 port detected
[    1.850060] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.856279] ohci-platform: OHCI generic platform driver
[    1.861687] ohci-platform 1c1a400.usb: Generic Platform OHCI controller
[    1.868330] ohci-platform 1c1a400.usb: new USB bus registered, assigned bus number 2
[    1.876364] ohci-platform 1c1a400.usb: irq 28, io mem 0x01c1a400
[    1.946763] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 4.20
[    1.955045] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.962268] usb usb2: Product: Generic Platform OHCI controller
[    1.968196] usb usb2: Manufacturer: Linux 4.20.0-rc3-m2z-otg-gadget ohci_hcd
[    1.975254] usb usb2: SerialNumber: 1c1a400.usb
[    1.980284] hub 2-0:1.0: USB hub found
[    1.984076] hub 2-0:1.0: 1 port detected
[    1.988900] usbcore: registered new interface driver cdc_acm
[    1.994590] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[    2.002648] usbcore: registered new interface driver usblp
[    2.008177] usbcore: registered new interface driver cdc_wdm
[    2.013919] usbcore: registered new interface driver usb-storage
[    2.020023] usbcore: registered new interface driver ch341
[    2.025556] usbserial: USB Serial support registered for ch341-uart
[    2.031847] usbcore: registered new interface driver cp210x
[    2.037452] usbserial: USB Serial support registered for cp210x
[    2.043433] usbcore: registered new interface driver ftdi_sio
[    2.049204] usbserial: USB Serial support registered for FTDI USB Serial Device
[    2.056626] usbcore: registered new interface driver pl2303
[    2.062215] usbserial: USB Serial support registered for pl2303
[    2.068917] mousedev: PS/2 mouse device common for all mice
[    2.075219] sun6i-rtc 1f00000.rtc: rtc core: registered rtc-sun6i as rtc0
[    2.082002] sun6i-rtc 1f00000.rtc: RTC enabled
[    2.086731] i2c /dev entries driver
[    2.092535] thermal thermal_zone0: failed to read out thermal zone (-16)
[    2.099901] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
[    2.109005] sunxi-mmc 1c0f000.mmc: Linked as a consumer to regulator.2
[    2.141438] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
[    2.148808] sunxi-mmc 1c10000.mmc: Linked as a consumer to regulator.2
[    2.156082] sunxi-mmc 1c10000.mmc: allocated mmc-pwrseq
[    2.185330] sunxi-mmc 1c10000.mmc: initialized, max. request size: 16384 KB
[    2.193708] ledtrig-cpu: registered to indicate activity on CPUs
[    2.199989] hidraw: raw HID events driver (C) Jiri Kosina
[    2.205826] usbcore: registered new interface driver usbhid
[    2.211424] usbhid: USB HID core driver
[    2.218165] sun4i-codec 1c22c00.codec: ASoC: codec-analog@1f015c0 not registered
[    2.219174] mmc0: host does not support reading read-only switch, assuming write-enable
[    2.225590] sun4i-codec 1c22c00.codec: Failed to register our card
[    2.227243] Initializing XFRM netlink socket
[    2.235622] mmc0: new high speed SDHC card at address 59b4
[    2.239822] NET: Registered protocol family 17
[    2.245682] mmcblk0: mmc0:59b4 SDU1  7.52 GiB 
[    2.249611] can: controller area network core (rev 20170425 abi 9)
[    2.256018]  mmcblk0: p1 p2
[    2.258645] NET: Registered protocol family 29
[    2.266951] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[    2.267550] can: raw protocol (rev 20170425)
[    2.273511] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    2.277463] can: broadcast manager protocol (rev 20170425 t)
[    2.283214] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    2.287203] can: netlink gateway (rev 20170425) max_hops=1
[    2.295540] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[    2.299215] rfkill_gpio rfkill_bt: sunxi-bt device registered.
[    2.307111] mmc1: queuing unknown CIS tuple 0x81 (9 bytes)
[    2.309579] 9pnet: Installing 9P2000 support
[    2.324938] Key type dns_resolver registered
[    2.329439] Registering SWP/SWPB emulation handler
[    2.334843] Loading compiled-in X.509 certificates
[    2.347548] cam: supplied by vcc5v0
[    2.351808] cam-avdd: supplied by cam
[    2.355557] cam-dovdd: supplied by cam
[    2.359343] cam-dvdd: supplied by cam
[    2.364536] ehci-platform 1c1b000.usb: EHCI Host Controller
[    2.370140] ehci-platform 1c1b000.usb: new USB bus registered, assigned bus number 3
[    2.378396] ehci-platform 1c1b000.usb: irq 29, io mem 0x01c1b000
[    2.398114] mmc1: new high speed SDIO card at address 0001
[    2.412620] ehci-platform 1c1b000.usb: USB 2.0 started, EHCI 1.00
[    2.418918] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.20
[    2.427193] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.434419] usb usb3: Product: EHCI Host Controller
[    2.439292] usb usb3: Manufacturer: Linux 4.20.0-rc3-m2z-otg-gadget ehci_hcd
[    2.446342] usb usb3: SerialNumber: 1c1b000.usb
[    2.451420] hub 3-0:1.0: USB hub found
[    2.455216] hub 3-0:1.0: 1 port detected
[    2.459940] ehci-platform 1c1c000.usb: EHCI Host Controller
[    2.465553] ehci-platform 1c1c000.usb: new USB bus registered, assigned bus number 4
[    2.473608] ehci-platform 1c1c000.usb: irq 31, io mem 0x01c1c000
[    2.502616] ehci-platform 1c1c000.usb: USB 2.0 started, EHCI 1.00
[    2.508856] usb usb4: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.20
[    2.517130] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.524354] usb usb4: Product: EHCI Host Controller
[    2.529227] usb usb4: Manufacturer: Linux 4.20.0-rc3-m2z-otg-gadget ehci_hcd
[    2.536276] usb usb4: SerialNumber: 1c1c000.usb
[    2.541290] hub 4-0:1.0: USB hub found
[    2.545081] hub 4-0:1.0: 1 port detected
[    2.549700] ehci-platform 1c1d000.usb: EHCI Host Controller
[    2.555308] ehci-platform 1c1d000.usb: new USB bus registered, assigned bus number 5
[    2.563406] ehci-platform 1c1d000.usb: irq 33, io mem 0x01c1d000
[    2.592613] ehci-platform 1c1d000.usb: USB 2.0 started, EHCI 1.00
[    2.598845] usb usb5: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.20
[    2.607115] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.614342] usb usb5: Product: EHCI Host Controller
[    2.619214] usb usb5: Manufacturer: Linux 4.20.0-rc3-m2z-otg-gadget ehci_hcd
[    2.626262] usb usb5: SerialNumber: 1c1d000.usb
[    2.631285] hub 5-0:1.0: USB hub found
[    2.635076] hub 5-0:1.0: 1 port detected
[    2.639693] ohci-platform 1c1b400.usb: Generic Platform OHCI controller
[    2.646349] ohci-platform 1c1b400.usb: new USB bus registered, assigned bus number 6
[    2.654358] ohci-platform 1c1b400.usb: irq 30, io mem 0x01c1b400
[    2.726765] usb usb6: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 4.20
[    2.735041] usb usb6: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.742254] usb usb6: Product: Generic Platform OHCI controller
[    2.748181] usb usb6: Manufacturer: Linux 4.20.0-rc3-m2z-otg-gadget ohci_hcd
[    2.755232] usb usb6: SerialNumber: 1c1b400.usb
[    2.760259] hub 6-0:1.0: USB hub found
[    2.764054] hub 6-0:1.0: 1 port detected
[    2.768682] ohci-platform 1c1c400.usb: Generic Platform OHCI controller
[    2.775333] ohci-platform 1c1c400.usb: new USB bus registered, assigned bus number 7
[    2.783334] ohci-platform 1c1c400.usb: irq 32, io mem 0x01c1c400
[    2.856757] usb usb7: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 4.20
[    2.865026] usb usb7: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.872238] usb usb7: Product: Generic Platform OHCI controller
[    2.878163] usb usb7: Manufacturer: Linux 4.20.0-rc3-m2z-otg-gadget ohci_hcd
[    2.885211] usb usb7: SerialNumber: 1c1c400.usb
[    2.890204] hub 7-0:1.0: USB hub found
[    2.893994] hub 7-0:1.0: 1 port detected
[    2.898656] ohci-platform 1c1d400.usb: Generic Platform OHCI controller
[    2.905304] ohci-platform 1c1d400.usb: new USB bus registered, assigned bus number 8
[    2.913297] ohci-platform 1c1d400.usb: irq 34, io mem 0x01c1d400
[    2.986793] usb usb8: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 4.20
[    2.995076] usb usb8: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.002289] usb usb8: Product: Generic Platform OHCI controller
[    3.008216] usb usb8: Manufacturer: Linux 4.20.0-rc3-m2z-otg-gadget ohci_hcd
[    3.015272] usb usb8: SerialNumber: 1c1d400.usb
[    3.020347] hub 8-0:1.0: USB hub found
[    3.024139] hub 8-0:1.0: 1 port detected
[    3.028883] usb_phy_generic usb_phy_generic.3.auto: usb_phy_generic.3.auto supply vcc not found, using dummy regulator
[    3.039657] usb_phy_generic usb_phy_generic.3.auto: Linked as a consumer to regulator.0
[    3.048029] musb-hdrc musb-hdrc.4.auto: MUSB HDRC host driver
[    3.053798] musb-hdrc musb-hdrc.4.auto: new USB bus registered, assigned bus number 9
[    3.061779] usb usb9: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.20
[    3.070056] usb usb9: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.077278] usb usb9: Product: MUSB HDRC host driver
[    3.082238] usb usb9: Manufacturer: Linux 4.20.0-rc3-m2z-otg-gadget musb-hcd
[    3.089285] usb usb9: SerialNumber: musb-hdrc.4.auto
[    3.094716] hub 9-0:1.0: USB hub found
[    3.098495] hub 9-0:1.0: 1 port detected
[    3.103139] cpu cpu0: Linked as a consumer to regulator.8
[    3.108593] cpu cpu0: Dropping the link to regulator.8
[    3.113933] cpu cpu0: Linked as a consumer to regulator.8
[    3.121144] sun4i-codec 1c22c00.codec: ASoC: Failed to create component debugfs directory
[    3.131748] sun4i-codec 1c22c00.codec: Codec <-> 1c22c00.codec mapping ok
[    3.140681] sun6i-rtc 1f00000.rtc: setting system clock to 1970-01-01 00:00:09 UTC (9)
[    3.155809] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    3.168145] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    3.178491] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    3.180801] vcc3v0: disabling
[    3.187360] platform regulatory.0: Falling back to syfs fallback for: regulatory.db
[    3.190307] vcc5v0: disabling
[    3.200934] cam-avdd: disabling
[    3.204604] cam-dovdd: disabling
[    3.208160] cam-dvdd: disabling
[    3.211459] ALSA device list:
[    3.214431]   #0: H3 Audio Codec
[    3.219984] Freeing unused kernel memory: 1024K
[    3.253946] Run /init as init process
[    3.594710] usb 1-1: new high-speed USB device number 2 using ehci-platform
[    3.597365] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[    3.794928] usb 1-1: New USB device found, idVendor=05e3, idProduct=0608, bcdDevice=85.36
[    3.803205] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[    3.810388] usb 1-1: Product: USB2.0 Hub
[    3.815584] hub 1-1:1.0: USB hub found
[    3.821038] hub 1-1:1.0: 4 ports detected
[    4.152684] usb 1-1.2: new high-speed USB device number 3 using ehci-platform
[    4.279191] systemd[1]: System time before build time, advancing clock.
[    4.328486] usb 1-1.2: New USB device found, idVendor=05e3, idProduct=0608, bcdDevice= 9.01
[    4.336887] usb 1-1.2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[    4.344218] usb 1-1.2: Product: USB2.0 Hub
[    4.349604] hub 1-1.2:1.0: USB hub found
[    4.354342] hub 1-1.2:1.0: 4 ports detected
[    4.653016] NET: Registered protocol family 10
[    4.722232] Segment Routing with IPv6
[    4.722718] usb 1-1.2.3: new low-speed USB device number 4 using ehci-platform
[    4.761011] random: systemd: uninitialized urandom read (16 bytes read)
[    4.776589] systemd[1]: systemd 229 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN)
[    4.795876] systemd[1]: Detected architecture arm.
[    4.853992] systemd[1]: Set hostname to <nanopi-duo>.
[    4.901619] usb 1-1.2.3: New USB device found, idVendor=1c4f, idProduct=0002, bcdDevice= 1.10
[    4.910179] usb 1-1.2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    4.917682] usb 1-1.2.3: Product: USB Keyboard
[    4.922128] usb 1-1.2.3: Manufacturer: SIGMACHIP
[    4.971346] input: SIGMACHIP USB Keyboard as /devices/platform/soc/1c1a000.usb/usb1/1-1/1-1.2/1-1.2.3/1-1.2.3:1.0/0003:1C4F:0002.0001/input/input0
[    4.974065] random: systemd: uninitialized urandom read (16 bytes read)
[    5.055034] hid-generic 0003:1C4F:0002.0001: input,hidraw0: USB HID v1.10 Keyboard [SIGMACHIP USB Keyboard] on usb-1c1a000.usb-1.2.3/input0
[    5.062380] random: systemd-gpt-aut: uninitialized urandom read (16 bytes read)
[    5.079213] input: SIGMACHIP USB Keyboard Consumer Control as /devices/platform/soc/1c1a000.usb/usb1/1-1/1-1.2/1-1.2.3/1-1.2.3:1.1/0003:1C4F:0002.0002/input/input1
[    5.163697] input: SIGMACHIP USB Keyboard System Control as /devices/platform/soc/1c1a000.usb/usb1/1-1/1-1.2/1-1.2.3/1-1.2.3:1.1/0003:1C4F:0002.0002/input/input2
[    5.180901] hid-generic 0003:1C4F:0002.0002: input,hidraw1: USB HID v1.10 Device [SIGMACHIP USB Keyboard] on usb-1c1a000.usb-1.2.3/input1
[    5.304755] usb 1-1.2.4: new low-speed USB device number 5 using ehci-platform
[    5.451765] usb 1-1.2.4: New USB device found, idVendor=1bcf, idProduct=0007, bcdDevice= 0.10
[    5.460466] usb 1-1.2.4: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[    5.468421] usb 1-1.2.4: Product: USB Optical Mouse
[    5.482692] input: USB Optical Mouse as /devices/platform/soc/1c1a000.usb/usb1/1-1/1-1.2/1-1.2.4/1-1.2.4:1.0/0003:1BCF:0007.0003/input/input3
[    5.496087] input: USB Optical Mouse as /devices/platform/soc/1c1a000.usb/usb1/1-1/1-1.2/1-1.2.4/1-1.2.4:1.0/0003:1BCF:0007.0003/input/input4
[    5.520418] hid-generic 0003:1BCF:0007.0003: input,hiddev96,hidraw2: USB HID v1.10 Mouse [USB Optical Mouse] on usb-1c1a000.usb-1.2.4/input0
[    5.837758] systemd[1]: Listening on Journal Socket.
[    5.914407] systemd[1]: Reached target Remote File Systems (Pre).
[    5.937931] systemd[1]: Listening on udev Control Socket.
[    5.983265] systemd[1]: Started Trigger resolvconf update for networkd DNS.
[    6.013319] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    6.054594] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[    6.104286] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[    6.706757] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[    6.835752] g_serial gadget: Gadget Serial v2.4
[    6.840303] g_serial gadget: g_serial ready
[    6.902950] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[    6.985436] Bluetooth: Core ver 2.22
[    6.989175] NET: Registered protocol family 31
[    6.993826] Bluetooth: HCI device and connection manager initialized
[    7.000509] Bluetooth: HCI socket layer initialized
[    7.005468] Bluetooth: L2CAP socket layer initialized
[    7.010572] Bluetooth: SCO socket layer initialized
[    7.023201] Bluetooth: HCI UART driver ver 2.3
[    7.028050] Bluetooth: HCI UART protocol H4 registered
[    7.033226] Bluetooth: HCI UART protocol BCSP registered
[    7.038535] Bluetooth: HCI UART protocol ATH3K registered
[    7.044231] Bluetooth: HCI UART protocol Intel registered
[    7.049630] Bluetooth: HCI UART protocol AG6XX registered
[    7.055066] Bluetooth: HCI UART protocol Marvell registered
[    7.087649] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[    7.098671] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43430-sdio.clm_blob failed with error -2
[    7.112736] brcmfmac mmc1:0001:1: Falling back to syfs fallback for: brcm/brcmfmac43430-sdio.clm_blob
[    8.034398] systemd-journald[192]: Received request to flush runtime journal from PID 1
[    8.307647] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-11), device may have limited channels available
[    8.311894] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Mar 30 2016 11:30:56 version 7.45.77.h8.4 FWID 01-ee8a6268
[    8.468024] cfg80211: failed to load regulatory.db
[    8.777141] media: Linux media interface: v0.10
[    8.791229] mali: loading out-of-tree module taints kernel.
[    8.802801] Allwinner sunXi mali glue initialized
[    8.804860] Registered IR keymap rc-empty
[    8.805108] rc rc0: sunxi-ir as /devices/platform/soc/1f02000.ir/rc/rc0
[    8.805556] input: sunxi-ir as /devices/platform/soc/1f02000.ir/rc/rc0/input5
[    8.806450] rc rc0: lirc_dev: driver sunxi-ir registered at minor = 0, raw IR receiver, no transmitter
[    8.811998] Mali: 
[    8.812008] Found Mali GPU Mali-400 MP r1p1
[    8.812725] sunxi-ir 1f02000.ir: initialized sunXi IR driver
[    8.816537] videodev: Linux video capture interface: v2.00
[    8.847290] ov5640 2-003c: Linked as a consumer to regulator.5
[    8.847385] ov5640 2-003c: Linked as a consumer to regulator.6
[    8.847472] ov5640 2-003c: Linked as a consumer to regulator.4
[    8.850168] Mali: 
[    8.850180] 2+0 PP cores initialized
[    8.851383] Mali: 
[    8.851390] Mali device driver loaded
[    8.880132] ov5640 2-003c: ov5640_read_reg: error: reg=300a
[    8.885969] ov5640 2-003c: ov5640_check_chip_id: failed to read chip identifier
[    8.893761] ov5640 2-003c: Dropping the link to regulator.5
[    8.893853] ov5640 2-003c: Dropping the link to regulator.6
[    8.893914] ov5640 2-003c: Dropping the link to regulator.4
[    9.941571] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
[   10.912016] Generic PHY 0.1:01: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0.1:01, irq=POLL)
[   10.925866] dwmac-sun8i 1c30000.ethernet eth0: No Safety Features support found
[   10.925896] dwmac-sun8i 1c30000.ethernet eth0: No MAC Management Counters available
[   10.925918] dwmac-sun8i 1c30000.ethernet eth0: PTP not supported by HW
[   10.927314] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   11.141416] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   12.003556] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   12.003643] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   12.798637] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   56.711762] random: crng init done
[   56.711814] random: 7 urandom warning(s) missed due to ratelimiting
[  521.245276] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[  521.245291] Bluetooth: BNEP filters: protocol multicast
[  521.245324] Bluetooth: BNEP socket layer initialized
[  525.482009] Bluetooth: hci0: sending frame failed (-49)
[  668.728660] Bluetooth: hci0: last event is not cmd complete (0x0f)