← Back to Milk-V Duo (256M)
yocto on Milk-V Duo (256M)
System Version
Not specified
Status
basic
Last Update
2024-11-25
Yocto Milk-V Duo 256M Test Report
Test Environment
Operating System Information
- Build System Version: Debian 12 bookworm
- Source Code Link: https://github.com/kinsamanka/meta-milkv
- Reference Installation Document: https://github.com/kinsamanka/meta-milkv/blob/master/README.md
Hardware Information
- Milk-V Duo 256M
- A USB Power Adapter
- A USB-A to C or USB C to C Cable
- A microSD Card
- A USB to UART Debugger (e.g., CH340, CH341, FT2232, etc.)
- Three Dupont Lines
- Headers pre-soldered on the Milk-V Duo 256M for debugging purposes
Installation Steps
Preparing the System Environment
On Debian or Ubuntu:
sudo apt install gawk wget git diffstat unzip texinfo gcc build-essential chrpath socat cpio python3 python3-pip python3-pexpect xz-utils debianutils iputils-ping python3-git python3-jinja2 libegl1-mesa libsdl1.2-dev python3-subunit mesa-common-dev zstd liblz4-tool file locales libacl1
sudo locale-gen en_US.UTF-8 # skip if locale already set
sudo apt install kasDownload Source Code and Build
Set the board image to be built:
export KAS_MACHINE=milkv-duo256mFetch source code:
mkdir yocto
cd yocto
git clone https://github.com/kinsamanka/meta-milkvThen build with kas:
kas build meta-milkv/kas-project.ymlThe resulting system image would be at build/tmp-musl/deploy/images/milkv-duo256m/core-image-minimal-milkv-duo256m.rootfs.wic.gz.
Flashing the Image to SD Card
zcat build/tmp-musl/deploy/images/milkv-duo/core-image-minimal-milkv-duo256m.rootfs.wic.gz | \
sudo dd of=/dev/your/device bs=4M iflag=fullblock oflag=direct conv=fsync status=progressLogging into the System
Logging into the system via the serial port.
Default username: root
Default password: none
Expected Results
The system boots up normally and allows login through the onboard serial port.
Actual Results
The system booted successfully and login through the onboard serial port was also successful.
Boot Log
Starting kernel ...
[ 0.000000] Linux version 5.10.4-yocto-standard-milkv-duo (oe-user@oe-host) (riscv64-oe-linux-musl-gcc (GCC) 13.3.0, GNU ld (GNU Binutils) 2.42.0.20240723) #1 PREEMPT Fri Oct 6 23:47:33 UTC 2023
[ 0.000000] earlycon: sbi0 at I/O port 0x0 (options '')
[ 0.000000] printk: bootconsole [sbi0] enabled
[ 0.000000] efi: UEFI not found.
[ 0.000000] Ion: Ion memory setup at 0x000000008b300000 size 75 MiB
[ 0.000000] OF: reserved mem: initialized node ion, compatible id ion-region
[ 0.000000] Zone ranges:
[ 0.000000] DMA32 [mem 0x0000000080000000-0x000000008fdfffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000080000000-0x000000008fdfffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x000000008fdfffff]
[ 0.000000] On node 0 totalpages: 65024
[ 0.000000] DMA32 zone: 889 pages used for memmap
[ 0.000000] DMA32 zone: 0 pages reserved
[ 0.000000] DMA32 zone: 65024 pages, LIFO batch:15
[ 0.000000] software IO TLB: mapped [mem 0x0000000086dac000-0x000000008adac000] (64MB)
[ 0.000000] SBI specification v2.0 detected
[ 0.000000] SBI implementation ID=0x1 Version=0x10004
[ 0.000000] SBI v0.2 TIME extension detected
[ 0.000000] SBI v0.2 IPI extension detected
[ 0.000000] SBI v0.2 RFENCE extension detected
[ 0.000000] riscv: ISA extensions acdfimsuv
[ 0.000000] riscv: ELF capabilities acdfimv
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 64135
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 console=ttyS0,115200 earlycon=sbi loglevel=9 rootwait rw
[ 0.000000] Dentry cache hash table entries: 32768 (order: 6, 262144 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 0.000000] Sorting __ex_table...
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 94392K/260096K available (4082K kernel code, 4539K rwdata, 4096K rodata, 160K init, 219K bss, 165704K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU event tracing is enabled.
[ 0.000000] Trampoline variant of Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] riscv-intc: 64 local interrupts mapped
[ 0.000000] plic: interrupt-controller@70000000: mapped 101 interrupts with 1 handlers for 2 contexts.
[ 0.000000] random: get_random_bytes called from start_kernel+0x300/0x454 with crng_init=0
[ 0.000000] riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [0]
[ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x5c40939b5, max_idle_ns: 440795202646 ns
[ 0.000008] sched_clock: 64 bits at 25MHz, resolution 40ns, wraps every 4398046511100ns
[ 0.008475] Console: colour dummy device 80x25
[ 0.013070] Calibrating delay loop (skipped), value calculated using timer frequency.. 50.00 BogoMIPS (lpj=100000)
[ 0.023771] pid_max: default: 32768 minimum: 301
[ 0.028778] Mount-cache hash table entries: 512 (order: 0, 4096 bytes, linear)
[ 0.036190] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes, linear)
[ 0.045708] ASID allocator initialised with 65536 entries
[ 0.051399] rcu: Hierarchical SRCU implementation.
[ 0.056761] EFI services will not be available.
[ 0.061817] devtmpfs: initialized
[ 0.070158] early_time_log: do_initcalls: 4148312us
[ 0.075703] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.085750] futex hash table entries: 256 (order: 0, 6144 bytes, linear)
[ 0.092824] pinctrl core: initialized pinctrl subsystem
[ 0.098758] NET: Registered protocol family 16
[ 0.103736] DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations
[ 0.111047] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[ 0.119905] thermal_sys: Registered thermal governor 'step_wise'
[ 0.134793] OF: /gpio@03020000/gpio-controller@0: could not find phandle
[ 0.148011] OF: /gpio@03021000/gpio-controller@1: could not find phandle
[ 0.154999] OF: /gpio@03022000/gpio-controller@2: could not find phandle
[ 0.161987] OF: /gpio@03023000/gpio-controller@3: could not find phandle
[ 0.168974] OF: /gpio@05021000/gpio-controller@4: could not find phandle
[ 0.178136] clk reset: nr_reset=64 resource_size=8
[ 0.183725] get audio clk=24576000
[ 0.187271] cvitek-i2s-subsys 4108000.i2s_subsys: Set clk_sdma_aud0~3 to 24576000
[ 0.206461] dw_dmac 4330000.dma: CVITEK DMA Controller, 8 channels, probe done!
[ 0.214890] SCSI subsystem initialized
[ 0.219115] usbcore: registered new interface driver usbfs
[ 0.224875] usbcore: registered new interface driver hub
[ 0.230447] usbcore: registered new device driver usb
[ 0.237033] pps_core: LinuxPPS API ver. 1 registered
[ 0.242164] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.251667] PTP clock support registered
[ 0.256199] Ion: ion_parse_dt_heap_common: id 0 type 2 name carveout align 1000
[ 0.264258] Ion: rmem_ion_device_init: heap carveout base 0x000000008b300000 size 0x0000000004b00000 dev (____ptrval____)
[ 0.275540] ion_carveout_heap_create, size=0x4b00000
[ 0.280844] cvi_get_rtos_ion_size, rtos ion_size get:0x1600000
[ 0.286811] ion_carveout_heap_create, size(exclusion of rtos_ion_size)=0x3500000
[ 0.509481] platform carveout: [ion] add heap id 0, type 2, base 0x8b300000, size 0x4b00000
[ 0.518444] Advanced Linux Sound Architecture Driver Initialized.
[ 0.525959] clocksource: Switched to clocksource riscv_clocksource
[ 0.543667] NET: Registered protocol family 2
[ 0.549174] tcp_listen_portaddr_hash hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.557872] TCP established hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.565862] TCP bind hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.573307] TCP: Hash tables configured (established 2048 bind 2048)
[ 0.580048] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.586824] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.594257] NET: Registered protocol family 1
[ 0.599330] RPC: Registered named UNIX socket transport module.
[ 0.605458] RPC: Registered udp transport module.
[ 0.610328] RPC: Registered tcp transport module.
[ 0.615249] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.624194] Initialise system trusted keyrings
[ 0.629032] workingset: timestamp_bits=62 max_order=15 bucket_order=0
[ 0.644575] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.651690] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[ 0.658860] Key type asymmetric registered
[ 0.663064] Asymmetric key parser 'x509' registered
[ 0.668213] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 0.675866] io scheduler mq-deadline registered
[ 0.680607] io scheduler kyber registered
[ 0.688883] pinctrl-single 3001000.pinctrl: 1024 pins, size 4096
[ 0.767899] Serial: 8250/16550 driver, 5 ports, IRQ sharing disabled
[ 0.776497] printk: console [ttyS0] disabled
[ 0.781008] 4140000.serial: ttyS0 at MMIO 0x4140000 (irq = 15, base_baud = 1562500) is a 16550A
[ 0.790128] printk: console [ttyS0] enabled
[ 0.790128] printk: console [ttyS0] enabled
[ 0.798724] printk: bootconsole [sbi0] disabled
[ 0.798724] printk: bootconsole [sbi0] disabled
[ 0.809131] 4150000.serial: ttyS1 at MMIO 0x4150000 (irq = 16, base_baud = 1562500) is a 16550A
[ 0.819162] 4160000.serial: ttyS2 at MMIO 0x4160000 (irq = 17, base_baud = 1562500) is a 16550A
[ 0.829226] 4170000.serial: ttyS3 at MMIO 0x4170000 (irq = 18, base_baud = 1562500) is a 16550A
[ 0.841434] cvi-spif 10000000.cvi-spif: unrecognized JEDEC id bytes: ff ff ff ff ff ff
[ 0.849707] cvi-spif 10000000.cvi-spif: device scan failed
[ 0.855421] cvi-spif 10000000.cvi-spif: unable to setup flash chip
[ 0.867681] libphy: Fixed MDIO Bus: probed
[ 0.872474] bm-dwmac 4070000.ethernet: IRQ eth_wake_irq not found
[ 0.878828] bm-dwmac 4070000.ethernet: IRQ eth_lpi not found
[ 0.884808] bm-dwmac 4070000.ethernet: Hash table entries set to unexpected value 0
[ 0.892882] bm-dwmac 4070000.ethernet: no reset control found
[ 0.899071] bm-dwmac 4070000.ethernet: User ID: 0x10, Synopsys ID: 0x37
[ 0.905997] bm-dwmac 4070000.ethernet: DWMAC1000
[ 0.910897] bm-dwmac 4070000.ethernet: DMA HW capability register supported
[ 0.918119] bm-dwmac 4070000.ethernet: RX Checksum Offload Engine supported
[ 0.925339] bm-dwmac 4070000.ethernet: COE Type 2
[ 0.930228] bm-dwmac 4070000.ethernet: TX Checksum insertion supported
[ 0.937000] bm-dwmac 4070000.ethernet: Normal descriptors
[ 0.942607] bm-dwmac 4070000.ethernet: Ring mode enabled
[ 0.948126] bm-dwmac 4070000.ethernet: Enable RX Mitigation via HW Watchdog Timer
[ 0.955887] bm-dwmac 4070000.ethernet: device MAC address 12:2d:f4:29:9f:bd
[ 0.987195] libphy: stmmac: probed
[ 0.992075] bm-dwmac 4070000.ethernet: Cannot get clk_500m_eth!
[ 0.998436] bm-dwmac 4070000.ethernet: Cannot get gate_clk_axi4!
[ 1.006367] dwc2 4340000.usb: axi clk installed
[ 1.011136] dwc2 4340000.usb: apb clk installed
[ 1.015877] dwc2 4340000.usb: 125m clk installed
[ 1.020688] dwc2 4340000.usb: 33k clk installed
[ 1.025405] dwc2 4340000.usb: 12m clk installed
[ 1.030202] dwc2 4340000.usb: EPs: 8, dedicated fifos, 3072 entries in SPRAM
[ 1.038117] dwc2 4340000.usb: DWC OTG Controller
[ 1.042988] dwc2 4340000.usb: new USB bus registered, assigned bus number 1
[ 1.050258] dwc2 4340000.usb: irq 37, io mem 0x04340000
[ 1.056588] hub 1-0:1.0: USB hub found
[ 1.060595] hub 1-0:1.0: 1 port detected
[ 1.065842] usbcore: registered new interface driver usb-storage
[ 1.072511] i2c /dev entries driver
[ 1.077766] sdhci: Secure Digital Host Controller Interface driver
[ 1.084206] sdhci: Copyright(c) Pierre Ossman
[ 1.088737] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.094865] cvi:sdhci_cvi_probe
[ 1.141986] mmc0: SDHCI controller on 4310000.cv-sd [4310000.cv-sd] using ADMA 64-bit
[ 1.150150] cvi_proc_init cvi_host 0x(____ptrval____)
[ 1.162002] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.168780] usbcore: registered new interface driver usbhid
[ 1.174661] usbhid: USB HID core driver
[ 1.182725] cvitek-i2s 4100000.i2s: cvi_i2s_probe
[ 1.188161] cvitek-i2s 4130000.i2s: cvi_i2s_probe
[ 1.193871] cviteka-adc sound_adc: cviteka_adc_probe, dev name=sound_adc
[ 1.205997] cviteka-adc sound_adc: cviteka_adc_probe start devm_snd_soc_register_card
[ 1.214513] cvitekaadc 300a100.adc: cvitekaadc_probe
[ 1.220386] cviteka-dac sound_dac: cviteka_dac_probe, dev name=sound_dac
[ 1.227858] cvitekadac 300a000.dac: cvitekadac_probe
[ 1.233270] cvitekadac_probe gpio_is_valid mute_pin_l
[ 1.239960] NET: Registered protocol family 10
[ 1.246279] Segment Routing with IPv6
[ 1.250322] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 1.257382] NET: Registered protocol family 17
[ 1.262398] Loading compiled-in X.509 certificates
[ 1.298033] mmc0: new high speed SDHC card at address aaaa
[ 1.306979] i2c_designware 4010000.i2c: running with gpio recovery mode! scl,sda
[ 1.315096] mmcblk0: mmc0:aaaa SP32G 29.7 GiB
[ 1.320503] i2c_designware 4020000.i2c: running with gpio recovery mode! scl,sda
[ 1.328909] i2c_designware 4030000.i2c: running with gpio recovery mode! scl,sda
[ 1.337218] cviteka-adc sound_adc: cviteka_adc_probe, dev name=sound_adc
[ 1.344203] cviteka-adc sound_adc: cviteka_adc_probe start devm_snd_soc_register_card
[ 1.357423] cviteka-dac sound_dac: cviteka_dac_probe, dev name=sound_dac
[ 1.369634] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 1.381599] mmcblk0: p1 p2
[ 1.385183] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 1.393462] cfg80211: failed to load regulatory.db
[ 1.398687] ALSA device list:
[ 1.402465] dw-apb-uart 4140000.serial: forbid DMA for kernel console
[ 1.419441] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 1.427981] VFS: Mounted root (ext4 filesystem) on device 179:2.
[ 1.436576] devtmpfs: mounted
[ 1.439859] Freeing unused kernel memory: 160K
[ 1.444530] Run /sbin/init as init process
[ 1.448802] with arguments:
[ 1.451898] /sbin/init
[ 1.454723] with environment:
[ 1.457998] HOME=/
[ 1.460441] TERM=linux
[ 1.463300] usb 1-1: new high-speed USB device number 2 using dwc2
[ 1.469727] early_time_log: run_init_process: 5547885us
init started: BusyBox v1.36.1 ()
[ 1.662062] dwc2 4340000.usb: Not connected
[ 1.731954] bm-dwmac 4070000.ethernet eth0: PHY [stmmac-0:00] driver [Generic PHY] (irq=POLL)
[ 1.750001] dwmac1000: Master AXI performs any burst length
[ 1.755816] bm-dwmac 4070000.ethernet eth0: No Safety Features support found
[ 1.763465] bm-dwmac 4070000.ethernet eth0: IEEE 1588-2002 Timestamp supported
[ 1.771408] bm-dwmac 4070000.ethernet eth0: registered PTP clock
[ 1.778400] bm-dwmac 4070000.ethernet eth0: configuring for phy/rmii link mode
[ 1.878014] dwc2 4340000.usb: Not connected
[ 11.013433] random: chronyd: uninitialized urandom read (3 bytes read)
[ 11.020289] random: chronyd: uninitialized urandom read (1024 bytes read)
[ 21.930038] random: crng init done
starting pid 149, tty '/dev/ttyS0': '/usr/sbin/ttyrun ttyS0 /sbin/getty 115200 ttyS0'
OpenEmbedded 1.0 milkv-duo256m /dev/ttyS0
milkv-duo256m login: root
root@milkv-duo256m:~# uname -a
Linux milkv-duo256m 5.10.4-yocto-standard-milkv-duo #1 PREEMPT Fri Oct 6 23:47:33 UTC 2023 riscv64 GNU/Linux
root@milkv-duo256m:~# cat /proc/version
Linux version 5.10.4-yocto-standard-milkv-duo (oe-user@oe-host) (riscv64-oe-linux-musl-gcc (GCC) 13.3.0, GNU ld (GNU Binutils) 2.42.0.20240723) #1 PREEMPT Fri Oct 6 23:47:33 UTC 2023
root@milkv-duo256m:~#
Test Criteria
Successful: The actual result matches the expected result.
Failed: The actual result does not match the expected result.
Test Conclusion
Test successful.
Source: Support Matrix