https://wiki.banana-pi.org/Banana_Pi_BPI-R3

• MT7986(Filogic 830) quad core ARM A53 SoC
• MT7531A Ethernet-switch
• 2G DDR RAM
• 8G eMMC flash, SPI-NAND (128 MiB), SPI-NOR (32 MiB)
• dual-band wifi:
  • 2.4G use MT7975N
  • 5G (wifi 6/5.8GHz,not 6E) use MT7975P frontend
• 2 SFP 2.5GbE and 5 GbE RJ45 ports
• mPCIe slot with only USB 2.0 connected for 4G modem
• M.2 slot key-M with only PCIe x2 interface (no sata/usb) for nvme (key B+M) or wifi-card for 6E (maybe adapter needed)

V1.0:

V1.1:

3v3 TTL

Usb2serial adapters supported: ch340 (no G),cp2104,FT4232

With Profilic, cp2102, ch340G wifi firmware does not start issue-report

Gnd-gnd,rx-tx,tx-rx

115200 8n1 (8databits,1 startbit), no flow control

• SD / eMMC sharing 1 mmc-controller in SoC
  • SD 4bit bus, eMMC 8bit
  • switched first 4 data-lanes by sw6/D (bottom on v1.0)
• SPI NAND/NOR sharing SPI0-Bus
  • CS switched by sw5/C

sw2/B on top of board near debug-uart chooses between SPI and MMC

see bootmedium_selection for boot selection table

gmac1 (eth0) ---- (p6)mt7531(P0) ---- WAN
                            (P1-4) -- LANx4
                            (p5/lan4) ---- right SFP slot (sfp2)
gmac2 (eth1) ---- left SFP slot (sfp1)

https://forum.banana-pi.org/t/bpi-r3-information/12897/4

We have both sfp slots recognized and working

mount -t debugfs none /sys/kernel/debug/
ethtool -m eth1
cat /sys/kernel/debug/sfp*/state

Some sfp are still not recognized (e.g. gpon).maybe quirks are needed.

After some phylink-conversion there are some issues with 2g5 sfp on left sfp/eth1. A workaround is disabling autoneg on the interface

ethtool -s eth1 autoneg off

Left sfp does not support vlan in linux 6.1 because tag is stripped.

Power: “All SFP power supplies are connected to the system VDD33” which is 3v3/8A source Dts patch from Daniel I sent 3W patch to ML…

• class: Fibre MM/SM, Copper RJ45, ONT
• bandwidth: 1G/2G5 (only)

2g5 sfp currently detected only if autoneg is turned off.

ethtool -s eth1 autoneg off
ethtool -s lan4 autoneg off

Eric works on phy driver which looks very good now for 6.6 (6.5-next),but now yet posted upstream.

Firmware: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/mediatek

WLAN

Antenna mounting https://forum.banana-pi.org/t/how-to-mount-the-antenna-to-the-box/14429/4

Antenna order by band (5g in corners): https://forum.banana-pi.org/t/how-to-mount-the-antenna-to-the-box/14429/15

WED (wireless dispatch - hw offloading):

https://forum.banana-pi.org/t/wed-and-beamforming-on-bpi-r3/15099/16

You need to edit /etc/modules.conf to enable WED. Add a line as follow:
options mt7915e wed_enable=Y

zgrep 'WED' /proc/config.gz
lsmod
cat /sys/module/mt7915e/parameters/wed_enable
cat /sys/kernel/debug/mtk_ppe/bind

The USB3.0 socket of R3 can only provide a maximum current of 1400mA. source

mPCIe slot is usb-only with SIM connector (bottom of board). PCIe is mapped to m.2 key-m slot for nvme SSD

Sata possible via M.2 KEY-M 2lane interface on bottom side of board (needs PCIe-2-Sata controller!)

I tested mpcie slot with an em7455 LTE module (+key b adapter)

for m.2-slot there is a patch if nvme is not recognized: https://forum.banana-pi.org/t/bpi-r3-nvme-connection-issue/14563/17

gpio

cat /sys/class/thermal/thermal_zone0/temp

Thermalpad size: https://forum.banana-pi.org/t/banana-pi-r3-fan-with-pwm/14406/28

Change pwm of fan from 5v to 12v (R317/R318): Shematic location on board

Mt76:

cat /sys/class/ieee80211/phy*/hwmon*/temp1_input

2g4/5g difference: https://github.com/openwrt/mt76/issues/729

FAN-Connector: JST PH 2mm pin-spacing

5V pwm fan: https://de.aliexpress.com/item/1005003663915828.html

trigger pwm-fan:

  echo 1 > /sys/class/thermal/cooling_device0/cur_state

available via sysfs:

• green: power
• blue: status

additional with function

• wf2g
• wf5g
• ssd: blinks on write access on m2-slot (nvme)
• lte: reported to work by daniel

Wifi-leds are fixed in my 6.1 tree and in mt76 master.

https://forum.banana-pi.org/t/banana-bpi-r3-3d-printed-case/14246/

Case from finas: https://www.printables.com/model/335936-banana-pi-bpi-r3-modular-case

Higher version added here:

https://www.dropbox.com/s/tng2pi2ud6qd2vo/Banana%20PI%20RPI-3%20case.stl?dl=0

blocks á 512 byte

bytes (start,size in hex)

32MB kernel/256MB root: gpt_sd-20220216.bin

create own partition table: (currently i tried to port to python3,but get crc error, so only python2-support):

https://github.com/frank-w/BPI-R3-bsp/tree/r3-atf/tools/mediatek/gpt_editor

(cd tools/mediatek/gpt_editor/;python mtk_gpt.py --i example/mt7986-sd.json --o GPT_SD)

Created a gpt with 100mb kernel+6GB root partition with an python2 venv

https://github.com/frank-w/u-boot/blob/r3-atf/gpt_sdmmc_100m6g.img

https://github.com/frank-w/u-boot/blob/r3-atf/gpt_emmc_100m6g.img

Gpt img file may cause errors when using parted (main and backup gpt corrupt) or gpt errors in uboot on reboot. This can be also caused by backup-gpt not overridden by image (end of disk).

Parted:

Error: Both the primary and backup GPT tables are corrupt.  Try making a fresh table, and using Parted's rescue feature to recover partitions.

Uboot (sw reboot):

*** ERROR: Can't read GPT Entries ***
find_valid_gpt: *** ERROR: Invalid GPT ***

This can be fixed with sgdisk by exporting and re-importing the gpt

sudo sgdisk --backup=bpi-r3_sgdisk.gpt /dev/sdb
sudo sgdisk --load-backup=bpi-r3_sgdisk.gpt /dev/sdb

script for creating gpt with sgdisk/losetup bl2-partition needs legacy-boot flag!

Todo…currently only via linux initrd from nor/usb

It is possible to create gpt in uboot. Example for rk3568:

https://source.denx.de/u-boot/u-boot/-/blob/master/include/configs/rk3568_common.h#L29

https://elixir.bootlin.com/u-boot/latest/source/include/configs/rockchip-common.h#L85

This creates a env var with the partition definition for rk3568 (not bpi-r3):

"uuid_disk=${uuid_gpt_disk};" \
"name=loader1,start=32K,size=4000K,uuid=${uuid_gpt_loader1};" \
"name=loader2,start=8MB,size=4MB,uuid=${uuid_gpt_loader2};" \
"name=trust,size=4M,uuid=${uuid_gpt_atf};" \
"name=boot,size=112M,bootable,uuid=${uuid_gpt_boot};" \
"name=rootfs,size=-,uuid="ROOT_UUID

Which can be used like this:

mmc dev 0
gpt write mmc 0 $partitions

defined table this way (blocks only):

setenv partitions "uuid_disk=${uuid_gpt_disk};name=gpt,start=0,size=34,uuid=${uuid_gpt_table};name=u-boot-env,start=8192,size=1024,uuid=${uuid_gpt_env};name=factory,start=9216,size=4096,uuid=${uuid_gpt_factory};name=fip,start=13312,size=4096,uuid=${uuid_gpt_fip};name=kernel,size=100M,uuid=${uuid_gpt_kernel};name=rootfs,size=0,uuid=${uuid_gpt_rootfs}"

but i got error on write…maybe because a gpt already exists

MT7986> printenv partitions
partitions=uuid_disk=;name=gpt,start=0,size=34,uuid=;name=u-boot-env,start=8192,size=1024,uuid=;name=factory,start=9216,size=4096,uuid=;name=fip,start=13312,size=4096,uuid=;name=kernel,size=100M,uuid=;name=rootfs,size=0,uuid=
MT7986> mmc dev 0
switch to partitions #0, OK
mmc0(part 0) is current device
MT7986> gpt write mmc 0 $partitions
Writing GPT: error!

U-Boot

Daniels code: https://github.com/dangowrt/arm-trusted-firmware/tree/mtksoc-v2.6/

https://git.openwrt.org/?p=openwrt/staging/dangole.git;a=shortlog;h=refs/heads/r3-mt7986

Own repo: https://github.com/frank-w/BPI-R2-4.14/commits/6.1-main

./build.sh importconfig
./build.sh #build kernel

Then copy bpi-r3.itb to card and start from u-boot

https://git.openwrt.org/openwrt/openwrt.git

Build instructions: https://forum.banana-pi.org/t/banana-pi-r3-bsp-source-code/14257/2

Or using firmware selector (currently only snapshot): https://firmware-selector.openwrt.org/ (adding luci-ssl)

Install: https://forum.banana-pi.org/t/install-openwrt-snapshot-on-bpi-r3/14231/7?u=frank-w

opkg update
opkg install luci-ssl

Change network config without luci: https://forum.banana-pi.org/t/banana-pi-r3-cant-save-anything-in-luci/14658/15?u=frank-w

Add more space on storage: https://forum.banana-pi.org/t/bpi-r3-change-or-add-partion-to-overlay/14240/12 https://forum.banana-pi.org/t/cannot-resize-my-root-partition-on-bpi-r3/13937/5

Modifications from user va1der: https://forum.banana-pi.org/t/bpi-r3-openwrt-whats-the-best-way-to-use-the-rest-of-my-space-on-my-sd-card/15675/10

create image with build.sh createimg from my uboot-repo (atf-r3 branch after building uboot+atf) and add rootfs+kernel

generated GPT from mtk-script has some problems with parted (partprobe reports main gpt is damaged), but it can be mounted with losetup -P

sudo losetup -P $LDEV $IMGDIR/$IMGNAME.img

writing image to sdcard (image not ready yet):

gunzip -c bpi-r3_sdmmc_bullseye.img.gz | sudo dd bs=1M status=progress conv=notrunc,fsync of=/dev/sdX

/etc/apt/sources.list:

deb http://ftp.de.debian.org/debian bullseye main contrib non-free
deb-src http://ftp.de.debian.org/debian bullseye main contrib non-free
deb http://ftp.de.debian.org/debian bullseye-updates main contrib non-free
deb-src http://ftp.de.debian.org/debian bullseye-updates main contrib non-free
deb https://security.debian.org/debian-security bullseye-security main contrib non-free
deb-src http://security.debian.org/debian-security bullseye-security main contrib non-free

root@bpi-r3:~# date -s "2022-09-18 18:02:00+0200"
root@bpi-r3:~# ip link set lan4 up
root@bpi-r3:~# ip addr add 192.168.0.19/24 dev lan4       
root@bpi-r3:~# ip route add default via 192.168.0.10     
root@bpi-r3:~# apt update
root@bpi-r3:~# apt install pciutils usbutils traceroute iperf3 net-tools psmisc wget curl

dnsmasq vs. systemd-resolved: “Another process is already listening on TCP socket 127.0.0.53:53”

https://unix.stackexchange.com/a/319501

V1.0:

• reset switch low/pressed when card in m2 slot (link)

V1.1:

• wifi firmware cannot be started when debug-uart connected (link)
  • bpi reports only affects profilic adapters, ch340,cp2102,FT4232 are ok (link)
  • I tested cp2102 (not working),cp2104 (working),ch340G (not working) and ft232rl (working)
  • Possible fix:https://github.com/openwrt/mt76/issues/702#issuecomment-1312284560
• reset-bug still there
  • is reported to be fixed (removed R171 and R173) in newer v1.1
  • tested in uboot with my v1.1 r3 in uboot and plugged m.2 nvme:

    • MT7986> gpio input 9
      gpio: pin 9 (gpio 9) value is 1 //initial value
      MT7986> gpio input 9
      gpio: pin 9 (gpio 9) value is 0 //pressed

• dual-nor (no nand) reported by 1 user link
• wifi temperature issue (2g4 seems wrong): https://github.com/openwrt/mt76/issues/729