BuildRoot (v2) Milk-V Duo S Test Report

Test Environment

Operating System Information

• System Version: DuoS-V2.0.1 (musl riscv64 version)
• Download Link: https://github.com/milkv-duo/duo-buildroot-sdk-v2/releases/
• Reference Installation Document: https://github.com/milkv-duo/duo-buildroot-sdk-v2

Hardware Information

• Milk-V Duo S (512M, SG2000)
• A USB Power Adapter
• A USB-A to C or USB C to C Cable for powering the development board
• A microSD Card
• A USB Card Reader
• A USB to UART Debugger (e.g., CP2102, FT2232, etc. Be aware that WCH CH340/341 series will cause garbled text output, DO NOT USE)

Installation Steps

Download DuoS Image and extract

wget https://github.com/milkv-duo/duo-buildroot-sdk-v2/releases/download/v2.0.1/milkv-duos-musl-riscv64-sd_v2.0.1.img.zip
unzip milkv-duos-musl-riscv64-sd_v2.0.1.img.zip

Flashing the Image

Use dd to flash the image to the SD card:

sudo dd if=milkv-duos-musl-riscv64-sd_v2.0.1.img of=/dev/your/device bs=1M status=progress

Logging into the System

Log into the system via the serial port.

Expected Results

The system should boot normally and allow login via the onboard serial port and ssh.

Actual Results

The system booted successfully and login via the onboard serial port and ssh was also successful.

Boot Information

The aic8800 insmod failure occurred because the Duo S used in the test does not have a Wi-Fi chip.

This is normal.

[    3.465078] vpss_start_handler:5143(): handler for dev(1) started
[    3.512876] cvi-mipi-tx mipi_tx: IRQ index 0 not found
[    3.524770] cvi-mipi-tx mipi_tx: vbat irq(-6)
[    3.529815] cvi-mipi-tx mipi_tx: reset gpio pin(354) active(0)
[    3.536143] cvi-mipi-tx mipi_tx: power ctrl gpio pin(353) active(1)
[    3.542892] cvi-mipi-tx mipi_tx: pwm gpio pin(352) active(1)
[    3.569852] cv181x-cooling cv181x_cooling: elems of dev-freqs=6
[    3.576099] cv181x-cooling cv181x_cooling: dev_freqs[0]: 850000000 500000000
[    3.583900] cv181x-cooling cv181x_cooling: dev_freqs[1]: 425000000 375000000
[    3.591486] cv181x-cooling cv181x_cooling: dev_freqs[2]: 425000000 300000000
[    3.599164] cv181x-cooling cv181x_cooling: Cooling device registered: cv181x_cooling
[    3.628687] [INFO] Register SBM IRQ ###################################
[    3.628715] [INFO] pvctx->s_sbm_irq = 37
[    3.643789] jpu ctrl reg pa = 0xb030000, va = (____ptrval____), size = 256
[    3.655437] end jpu_init result = 0x0
[    3.750599] cvi_vc_drv_init result = 0x0
[    3.821737] sh (192): drop_caches: 3
Starting app...
insmod: can't insert '/mnt/system/ko/aic8800_fdrv.ko': No such device
[root@milkv-duo]~# uname -a
Linux milkv-duo 5.10.4-tag- #1 PREEMPT Fri May 30 14:51:54 CST 2025 riscv64 GNU/Linux
[root@milkv-duo]~# cat /proc/cpuinfo
processor       : 0
hart            : 0
isa             : rv64imafdvcsu
mmu             : sv39

Screen recording:

Test Criteria

Successful: The actual result matches the expected result.

Failed: The actual result does not match the expected result.

Test Conclusion

Test successful.