Since the hardware support for Rockchip SoCs in the mainline kernelis generally already very outstanding and their further development is also being actively pursued, I only have SBCs with integrated NPUs that are based on them. Among them are ODROID-M2, NanoPC-T6, and ROCK-5-ITX. But since the NPU is an integral part of the SoC, the board manufacturer and the design of the SBC are not necessarily of importance. As far as I understand, edge-class NPUs are best suited for computer vision tasks. I am therefore engaged in object detection: and super-resolution:

I'm having a problem with my Raspberry Pi 5, which I describe below. I have a DVR connected to it via Ethernet. If I connect both at the same time, dmesg reports a failure and I can't ping the DVR to establish a connection; I have to run `ifconfig eth0 down` and `ifconfig eth0 up`. Can anyone help or know if there's a bug in the kernel version? I'm using Ubuntu 22.04. jammy root:~# dmesg | grep eth0 [ 1.312167] macb 1f00100000.ethernet eth0: Cadence GEM rev 0x00070109 at 0x1f00100000 irq 108 (2c:cf:67:81:d6:2a) [ 3.237493] systemd[1]: Found device /sys/subsystem/net/devices/eth0. [ 3.453483] systemd[1]: Started ifup for eth0. [ 3.573655] macb 1f00100000.ethernet eth0: PHY [1f00100000.ethernet-ffffffff:01] driver [Broadcom BCM54213PE] (irq=POLL) [ 3.573668] macb 1f00100000.ethernet eth0: configuring for phy/rgmii-id link mode [ 6.441950] macb 1f00100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off [ 11.560707] macb 1f00100000.ethernet eth0: Link is Down [ 13.605678] macb 1f00100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off root:~# ping 192.168.200.201 PING 192.168.200.201 (192.168.200.201) 56(84) bytes of data. ^C --- 192.168.200.201 ping statistics --- 6 packets transmitted, 0 received, 100% packet loss, time 13305ms root:~# ifconfig eth0 down root:~# ifconfig eth0 up root:~# dmesg | grep eth0 [ 1.312167] macb 1f00100000.ethernet eth0: Cadence GEM rev 0x00070109 at 0x1f00100000 irq 108 (2c:cf:67:81:d6:2a) [ 3.237493] systemd[1]: Found device /sys/subsystem/net/devices/eth0. [ 3.453483] systemd[1]: Started ifup for eth0. [ 3.573655] macb 1f00100000.ethernet eth0: PHY [1f00100000.ethernet-ffffffff:01] driver [Broadcom BCM54213PE] (irq=POLL) [ 3.573668] macb 1f00100000.ethernet eth0: configuring for phy/rgmii-id link mode [ 6.441950] macb 1f00100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off [ 11.560707] macb 1f00100000.ethernet eth0: Link is Down [ 13.605678] macb 1f00100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off [ 147.034711] macb 1f00100000.ethernet eth0: Link is Down [ 151.855860] macb 1f00100000.ethernet eth0: PHY [1f00100000.ethernet-ffffffff:01] driver [Broadcom BCM54213PE] (irq=POLL) [ 151.855871] macb 1f00100000.ethernet eth0: configuring for phy/rgmii-id link mode [ 152.869842] macb 1f00100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off root:~# ping 192.168.200.201 PING 192.168.200.201 (192.168.200.201) 56(84) bytes of data. 64 bytes from 192.168.200.201: icmp_seq=1 ttl=64 time=1.01 ms 64 bytes from 192.168.200.201: icmp_seq=2 ttl=64 time=1.01 ms ^C --- 192.168.200.201 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 1.007/1.007/1.007/0.000 ms

On RK3568 the Panfrost driver needs the clk-scmi kernel module to be loaded. But is not build in 6.18 / 6.19 otherwise we get [ 13.370681] panfrost fde60000.gpu: get clock failed -517 [ 13.370717] panfrost fde60000.gpu: clk init failed -517 [ 13.485723] panfrost fde60000.gpu: get clock failed -517 [ 13.485761] panfrost fde60000.gpu: clk init failed -517 [ 13.503876] panfrost fde60000.gpu: get clock failed -517 [ 13.503918] panfrost fde60000.gpu: clk init failed -517 Thanks !

It not works for me. I followed the official document to flash the SPI: https://docs.radxa.com/en/cubie/a5e/getting-started/install-system/nvme-system/burn-spi However after I wrote the latest Armbian img into NVMe disk, it failed to boot: [132]HELLO! BOOT0 is starting! [135]BOOT0 commit : 33d8db429a-dirty [140]periph0 has been enabled [143]set pll end [145]PL gpio voltage : 3.3V [149]PMU: AXP2202 [154]PMU: AXP1530 [159]power mode:33, sys_vol:920 [164]vaild para:1 select dram para0 [167]dram_para[0]:0x4b0 [170]dram_para[1]:0x8 [172]dram_para[2]:0x7070707 [175]dram_para[3]:0xd0d0d0d [178]dram_para[4]:0xe0e [181]dram_para[5]:0x84848484 [184]dram_para[6]:0x310a [186]dram_para[7]:0x10001000 [189]dram_para[8]:0x0 [192]dram_para[9]:0x34 [194]dram_para[10]:0x1b [197]dram_para[11]:0x33 [199]dram_para[12]:0x3 [202]dram_para[13]:0x0 [204]dram_para[14]:0x0 [207]dram_para[15]:0x4 [209]dram_para[16]:0x72 [212]dram_para[17]:0x0 [214]dram_para[18]:0xe [216]dram_para[19]:0x0 [219]dram_para[20]:0x0 [221]dram_para[21]:0x26 [224]dram_para[22]:0x80808080 [227]dram_para[23]:0x6060606 [230]dram_para[24]:0x1f0b0503 [233]dram_para[25]:0x0 [236]dram_para[26]:0x3a000000 [239]dram_para[27]:0x802f3333 [242]dram_para[28]:0xc0c0bbbf [245]dram_para[29]:0x35352f31 [248]dram_para[30]:0xc64 [251]dram_para[31]:0x48484848 [254]board init ok [277]enable_jtag [279]boot param - This media is not supported [283]boot param - Media not supportedsunxi_bootparam_cpu_read...91 [290]boot param - magic error [293]DRAM BOOT DRIVE INFO: V0.67 [297]DRAM_VCC set to 1100 mv [424]DRAM retraining ten [550]DRAM retraining ten [567][AUTO DEBUG]32bit,1 ranks training success! [597]Soft Training Version: T2.0 [7728][SOFT TRAINING] CLK=1200M Stable memtest pass [7733]DRAM CLK =1200 MHZ [7736]DRAM Type =8 (3:DDR3,4:DDR4,7:LPDDR3,8:LPDDR4) [7747]phy_dfs_clk1 = 800M [8082]phy_dfs_clk2 = 400M [8176]phy_dfs_clk3 = 150M [8299]phy_dfs_clk0 = 1200M [8302]DRAM MDFS VERSION INFO: V0.660 [8306]DRAM MDFS time =39480 ns [8309]DRAM SIZE =2048 MBytes, para1 = 310a, para2 = 8000000, tpr13 = 6465 [8340]DRAM simple test OK. [8343]dram size =2048 [8350]nsi init 2023-2-23 [8353]spinor id is: ef 60 18, read cmd: 03 [8358]Succeed in reading toc file head. [8361]The size of toc is 1a0000. [8910]Entry_name = u-boot [8920]Entry_name = monitor [8924]Entry_name = scp [8928]Entry_name = dtb [8931]Jump to second Boot. NOTICE: BL31: OP-TEE 32bit detected NOTICE: BL31: U-BOOT 32bit detected NOTICE: BL31: v2.5(debug):a6e1826c1 NOTICE: BL31: Built : 10:10:43, Mar 28 2025 NOTICE: BL31: No DTB found. nsi init ok 2022-11-08 ERROR: Error initializing runtime service opteed_fast U-Boot 2018.07-9-boot-aw2501-g56bb8c6a2ea-dirty (Sep 16 2025 - 08:32:16 +0000) Allwinner Technology [09.082]CPU: Allwinner Family [09.085]Model: Radxa Cubie A5E I2C: ready [09.097]DRAM: 2 GiB [09.101]Relocation Offset is: 75e60000 [09.163]secure enable bit: 0 [09.166]PMU: AXP2202 [09.195][AXP2202] comm status : 0x0 = 0x20, 0x1 = 0x90 [09.200][AXP2202] onoff status: 0x20 = 0x4, 0x21 = 0x0 [09.205][AXP2202] reboot/charge status: 0xf0 = 0x0 [09.209]PMU: AXP1530 [09.212]CPU=1008 MHz,PLL6=600 Mhz,AHB=200 Mhz, APB1=100Mhz MBus=600Mhz [09.219]gic: sec monitor mode SPI ALL: ready [09.224]flash init start [09.226]workmode = 0,storage type = 3 [09.231]spi sunxi_slave->max_hz:50000000 SF: write offset not multiple of erase size [09.771]spi sample_mode:0 sample_delay:1f [09.776]spi sunxi_slave->max_hz:50000000 SF: Detected w25q128fw( ) with page size 256 Bytes, erase size 64 KiB, total 16 MiB [09.788]sunxi flash init ok [09.797]Loading Environment from SUNXI_FLASH... OK [09.803]No ethernet found. [09.805]Failed to found available display route [09.810]Get sunxi drm device fail! [09.813]get secure storage map err [09.816]sunxi secure storage is not supported [09.820]usb burn from boot delay time 0 weak:otg_phy_config [09.830]usb prepare ok [10.133]overtime [10.138]do_burn_from_boot usb : no usb exist SF: write offset not multiple of erase size [10.189]get secure storage map err [10.192]secure storage init fail cann't get the boot_base from the env [10.201]update part info [10.212]update bootcmd pcie link up success PCIe speed of Gen2 [10.524]change working_fdt 0xbbe0fe18 to 0xbbddfe18 [10.532]## error: update_fdt_dram_para_from_bootpara : FDT_ERR_NOTFOUND [10.538]Invalid phandle:0 [10.540]only find 1073741818 phandle, format:endpoints=<&disp0_out_tcon0 &tcon0_out_rgb0>; [10.549]Failed to found available display route [10.553]chip id : 0x0000ff10 0x00004824 0x0000c31c 0x000023da [10.559]chip id : 0x0000ff10 0x00004824 0x0000c31c 0x000023da [10.564]Could not find nodeoffset for used ext pmu:reg-axp1530 [10.570]update dts curr_device:-1 No MMC device available Hit any key to stop autoboot: 0 starting USB... USB0: start sunxi USB-DRD... config usb clk ok sunxi USB-DRD init ok... USB EHCI 1.00 scanning bus 0 for devices... 1 USB Device(s) found USB1: start sunxi USB1-Host... config usb clk ok sunxi USB1-Host init ok... USB EHCI 1.00 scanning bus 1 for devices... 1 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found Device 0: device type unknown ... is now current device ** Bad device usb 0 ** ** Bad device usb 0 ** No MMC device available Scanning PCI devices on bus 1 BusDevFun VendorId DeviceId Device Class Sub-Class _____________________________________________________________ 01.00.00 0x1217 0x8760 Mass storage controller 0x08 Device 0: Vendor: 0x1217 Rev: 10100080 Prod: NB3925D000028 Type: Hard Disk Capacity: 58999.9 MB = 57.6 GB (120831998 x 512) ... is now current device Scanning nvme 0:1... Found U-Boot script /boot.scr 4641 bytes read in 2 ms (2.2 MiB/s) ## Executing script at 4fc00000 subfdt=sun55i-a527-cubie-a5e.dtb U-boot loaded from SD Boot script loaded from nvme 239 bytes read in 1 ms (233.4 KiB/s) sun55i-a527-cubie-a5e.dtb: No match Load fdt: /dtb/allwinner/sun55i-a527-cubie-a5e.dtb 37110 bytes read in 4 ms (8.8 MiB/s) 16547680 bytes read in 141 ms (111.9 MiB/s) 39950848 bytes read in 264 ms (144.3 MiB/s) ## Loading init Ramdisk from Legacy Image at 4ff00000 ... Image Name: uInitrd Image Type: AArch64 Linux RAMDisk Image (gzip compressed) Data Size: 16547616 Bytes = 15.8 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK No Linux ARM Ramdisk Image Ramdisk image is corrupt or invalid SCRIPT FAILED: continuing... No MMC device available No MMC device available No ethernet found. missing environment variable: pxeuuid missing environment variable: bootfile Retrieving file: pxelinux.cfg/00000000 No ethernet found. missing environment variable: bootfile Retrieving file: pxelinux.cfg/0000000 No ethernet found. missing environment variable: bootfile Retrieving file: pxelinux.cfg/000000 No ethernet found. missing environment variable: bootfile Retrieving file: pxelinux.cfg/00000 No ethernet found. missing environment variable: bootfile Retrieving file: pxelinux.cfg/0000 No ethernet found. missing environment variable: bootfile Retrieving file: pxelinux.cfg/000 No ethernet found. missing environment variable: bootfile Retrieving file: pxelinux.cfg/00 No ethernet found. missing environment variable: bootfile Retrieving file: pxelinux.cfg/0 No ethernet found. missing environment variable: bootfile Retrieving file: pxelinux.cfg/default-arm-sunxi No ethernet found. missing environment variable: bootfile Retrieving file: pxelinux.cfg/default-arm No ethernet found. missing environment variable: bootfile Retrieving file: pxelinux.cfg/default No ethernet found. Config file not found => The firmware filename I downloaded is: Armbian_community_26.2.0-trunk.493_Radxa-cubie-a5e_trixie_edge_6.18.13_minimal.img.xz

nfs shares are now rudimentary implemented