Sipeed Lichee RV

The test pin near the power LED is RST (reset).

Software Support
Linux and U-Boot upstreaming are in progress. See Allwinner_Nezha for build instructions. For U-Boot, use the lichee_rv_dock_defconfig configuration.

The board mainline support is added in Linux-next in february, 2023 (ready for Linux-6.3). It can be installed using last linux-6.2-rc + linux-next patch.

FEL mode
The FEL button triggers FEL mode.

The xfel tool has support for the D1 chip. Currently sunxi-fel (from Sunxi-tools) lists the SoC as unknown.

UART
The board has 4 pins holes at left of USB-C port for UART and is sold with the 4 pins to be soldered (not needed if you have the Dock). The pins name are wrote at the back of the board. from Top to bottom: This board can be powered by UART, by plugin a 5V pin. See the UART Howto for general usage of UART.
 * 5V
 * Ground
 * Rx
 * Tx

The pins should be soldered with pins at top top still be accessible when using the LicheeRV Dock.

Board can be powered by UART alone or by USB-C port.

Pins
Pinout of the M.2 B-Key 67×2 pins connectors of the SoM is described in schematic file

User LED
The user LED on the board can be controlled via GPIO65. The SoC include an RGB LED controller (led-controller@2008000).

Optional screen
There is an optional 1.14" 135×240 SPI LCD screen coming with the board. It uses Sitronix ST7789V controller (Datasheets). There is the panel_Sitronix_ST7789V driver included in mainline.

Pinout of the LED socket, after schematic file are :
 * SCK = PC2/LCD_SCK
 * MOSI = PC4
 * RS = PC5
 * CS = PC3
 * RESET = PC6
 * LEDA (screen backlight) = PD18

Another driver is included in Linux mainline in FBTFT for using RGB port with framebuffer. But this staging driver depend on FBTFT external source that has not been updated since August, 2021, and isn't compatible with kernel >=6.x. Looks like DRM replace progressively fb, a drmfb compatibility layer can be used if needed.

There is also a TinyDRM version of the driver, it was included in FBTFT, and is now include by default (at least on Linux 6.x)

For information, the connector and driver are compatibles between Sipeed LicheeRV and Sipeed Longan Nano, just need to adapt the resolution. It can be helpful for tests in case of problem with screen.

After official documentation about screen, the board support the following screens: cat /sys/class/disp/disp/attr/sys
 * SPI screen 1.14 inch(TODO)
 * RGB screen 4.3 inch 480x272；5.0 inch 800x480；
 * RGB+SPI screen 4.0 inch 480x480(st7701s); 4.0 inch 720x720(nv3052c)
 * MIPI screen 8.0 inch 1280x720(ILI9881C)

screen 0: de_rate 300000000 hz, ref_fps:60 mgr0: 480x480 fmt[rgb] cs[0x204] range[full] eotf[0x4] bits[8bits] err[0] force_sync[0] unblank direct_show[false] iommu[1] dmabuf: cache[0] cache max[0] umap skip[0] overflow[0] lcd output	backlight( 50)	fps:59.5	esd level(0)	freq(60)	pos(0)	reset(0)	 480x 480 err:0	skip:184	irq:230715	vsync:0	vsync_skip:0 BUF   enable ch[1] lyr[0] z[16] prem[N] a[globl 255] fmt[  0] fb[ 480, 480; 480, 480; 480, 480] crop[   0,   0, 480, 480] frame[   0,   0, 480, 480] addr[ffe00000,       0,       0] flags[0x       0] trd[0,0]

Lichee RV Dock
This small board has a built-in mic, speaker port, reset button, one extra button, HDMI and USB ports, an FPC connector for a mic array, a 40 pin HAT style GPIO header, and an option for a Wi-Fi add-on SoM plus the corresponding antenna port.

The Dock has UART pins connected to the CPU (mirror) allowing to debug without soldering. For the upper row: 5V, 5V, GND, TX, RX, TP_RST, GND

There are solder pads for an optional SPI flash (NAND or NOR) below the module.

Lichee RV Dock Pro
The Pro variant of the Dock is a bit larger in height, with a 16MB SPI NOR flash included, display connectors instead of the mic array connector, and an extra USB-C port for debugging via UART and/or JTAG.

Behind the debug USB port sits a Bouffalo Lab BL702, listed as. It offers a  device on Linux to connect to via Minicom etc.

References: stock firmware boot log

Lichee RV 86 Panel
The Lichee RV 86 Panel is a box with a 480×480 or 720x720 LCD touchscreen panel, ethernet with power supply, optional Wi-Fi, a speaker, and GPIOs exposed at the back for adding a header.



jeadock
This is a custom board, not officially for sale, but open hardware. For the board design and schematic, see repository, and read the blog post on the design process.

Pre-made images

 * A port of oreboot (Rust version of coreboot, so without C).
 * U-Boot (See also Allwinner Nezha)
 * XBoot https://github.com/xboot/xboot bare-metal multimedia system that manage most of peripherals.
 * RTOS based Tina, and Linux based Debian and Ubuntu images are available from Sipeed mirrors (Some Tutorials, in Chinese):
 * The vendor-provided Debian image can use HDMI, (requires OpenixCard, a clone of Windows only "PhoenixCard" tool to be written onto an SD card) volunteers have created such SD card and then saved its full contents into a raw-format image file, suitable for writing with dd: Mirror1 Mirror2
 * Login/pass:  /  ; WiFi can be set up by Connman (there are reports of transient lock-ups on associating to encrypted WiFi)
 * 16GB Image, if you use a larger microSD don't repair the GPT or you will not boot anymore!!!
 * The partition number 8 can be deleted with fdisk or parted, and then partition 7 grown with parted to the whole microSD card, and filesystem itself with resize2fs. System still boot and work after this modification.
 * sha256sum of the xz:
 * Asciinema record of the boot sequence (on Asciinema) with LicheeRV Dock


 * Ubuntu image displays the TTY on the Lichee RV LCD screen, keyboard can be used on Dock USB port. Archive include a readme about how to make the microSD card. In some cases, 80MB (163840) should be used instead of 40MB (81920, as wrote on the README) as start of the primary partition.
 * Login/Pass:  /
 * sha256sum of the tgz: 4a414a36ba5ae8000bd2f8ee088ea399b502527e1868662427bc00676d65ca79
 * asciinema record of the boot sequence (on Asciinema)


 * There is a working Debian image "RVBoards_D1_Debian_lxde_img_linux_v0.4.1.img.zip" that can be dd on a 32GB microSD card and boot on LicheeRV with several drivers working including the optional LCD screen (wait 2 or 3 minutes if you don't have serial), detect HDMI, WiFi, UVC Video of the Dock and wait for ethernet (to be investigated). It is mirrored here from here original source The 6.1 version need the PhoenixCard tool.
 * id/pass:  /
 * SHA256sum:
 * kernel: Linux RVBoards 5.4.61 #12 PREEMPT Thu Jun 3 08:39:01 UTC 2021 riscv64 GNU/Linux config.gz
 * Asciinema record of the boot sequence (on Asciinema) with LicheeRV Dock


 * Minimal console-only (no hdmi due to closed-source kernel module) Debian ddimage with updated kernel/u-boot, wifi support, and a sane partition layout. Available here
 * Users:  /    or    /
 * SHA256sum: e5254b7815516c10b59d54e5a9247241502e676014c506eb2cbf01b9f9b508cd
 * 4GB image, compressed to 340MB, resizable with resize2fs
 * kernel 5.14.0-rc4-nezha from https://github.com/Cezarus27/linux/tree/riscv/d1-wip with the following patch and .config available in /lib/modules patch


 * Clean (ie not android partition nonsense) Debian image with functioning HDMI (LXDE desktop) and 5.18 smaeul kernel (cc63db754b21) here
 * kernel config here
 * id/pass:  /
 * SHA256sum: 503d91fbc73ae067b9685a327797d92f85369f6a408f71b8cc00eae49ca62f9c
 * 8GB image, compressed to 1.7GB, flash with
 * image contains gparted for resizing to the full size of your card

Images builder

 * Arch linux: Sehraf Arch Image Builder - Last mainline kernel with Sameul patch (5.18.0-rc4-gf4bce410a6b4 has HDMI output, not more recent ones, probably due to some missing parameters in config file)
 * Debian: Debian D1 build - Last mainline kernel with Sameul patch
 * NixOS: NixOS Image Builder
 * LicheeRVBSPRebuild builds just the bootloader and kernel with patches from the Sipeed SDK. This can be combined with a Linux rootfs like Arch to create a full Linux system

Building mainline kernel
The first script of Archlinux Image Builder create automatically the last patched Sameul kernel, with working WiFi, HDMI, usb ethernet dongles, and fully open source boot parts.


 * Bottier build mainline kernel next, and allow to tune it by pass, and to install it on a card already built with Archlinux Image Builder (currently most things work but HDMI)

Sipeed Mirrors

 * pan.Baidu (提取码/password)：wbef
 * Mega.nz
 * Other mirror for the OS images

Other Resources

 * AllWinner D1 on Fedora Wiki
 * how to build neural network ncnn framwork on D1
 * Documentation Nezha D1 on RVBoards.org the author of the working Debian 11 image.