@yuzukitsuru 原因找到了，不小心把电源域配置关掉了，打开就能正常启动了，CONFIG_REGULATOR和CONFIG_REGULATOR_FIXED_VOLTAGE

@whycan

 [    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: sun8iw20
[    0.000000] printk: bootconsole [earlycon0] enabled
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] cma: Reserved 8 MiB at 0x47800000
[    0.000000] On node 0 totalpages: 32768
[    0.000000]   Normal zone: 256 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 32768 pages, LIFO batch:7
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv1.0 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.0
[    0.000000] percpu: Embedded 15 pages/cpu s30284 r8192 d22964 u61440
[    0.000000] pcpu-alloc: s30284 r8192 d22964 u61440 alloc=15*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 32512
[    0.000000] Kernel command line: ubi.mtd=sys ubi.block=0,rootfs earlyprintk= clk_ignore_unused initcall_debug=0 console=ttyS0,115200 loglevel=8 root=/dev/ubiblock0_5 rootfstype=squashfs init=/pseudo_init partitions=mbr@ubi0_0:boot-resource@ubi0_1:env@ubi0_2:env-redund@ubi0_3:boot@ubi0_4:rootfs@ubi0_5:private@ubi0_6:rootfs_data@ubi0_7:UDISK@ubi0_8: cma=8M snum= mac_addr= wifi_mac= bt_mac= specialstr= gpt=1 androidboot.hardware=sun8iw20p1 boot_type=5 androidboot.boot_type=5 gpt=1 uboot_message=2018.05-g24521d6-dirty(09/06/2022-15:58:48) aw-ubi-spinand.ubootblks=24 androidboot.dramsize=128 
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 110700K/131072K available (5120K kernel code, 235K rwdata, 1308K rodata, 1024K init, 1152K bss, 12180K reserved, 8192K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000]  Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] random: get_random_bytes called from start_kernel+0x264/0x3e8 with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
[    0.000006] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
[    0.008008] Switching to timer-based delay loop, resolution 41ns
[    0.014177] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.023878] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.034235] pid_max: default: 32768 minimum: 301
[    0.038984] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.046308] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.054614] CPU: Testing write buffer coherency: ok
[    0.059826] /cpus/cpu@0 missing clock-frequency property
[    0.065142] /cpus/cpu@1 missing clock-frequency property
[    0.070473] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.076635] Setting up static identity map for 0x40100000 - 0x40100060
[    0.083280] rcu: Hierarchical SRCU implementation.
[    0.088475] smp: Bringing up secondary CPUs ...
[    0.094091] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.094210] smp: Brought up 1 node, 2 CPUs
[    0.104005] SMP: Total of 2 processors activated (96.00 BogoMIPS).
[    0.110183] CPU: All CPU(s) started in SVC mode.
[    0.115270] devtmpfs: initialized
[    0.129276] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[    0.137392] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.147257] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[    0.154470] pinctrl core: initialized pinctrl subsystem
[    0.160243] NET: Registered protocol family 16
[    0.166066] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.201233] rtc_ccu: sunxi ccu init OK
[    0.207147] ccu: sunxi ccu init OK
[    0.210895] r_ccu: sunxi ccu init OK
[    0.235286] iommu: Default domain type: Translated 
[    0.240387] sunxi iommu: irq = 24
[    0.244569] SCSI subsystem initialized
[    0.248553] usbcore: registered new interface driver usbfs
[    0.254141] usbcore: registered new interface driver hub
[    0.259543] usbcore: registered new device driver usb
[    0.266035] Bluetooth: Core ver 2.22
[    0.269647] NET: Registered protocol family 31
[    0.274083] Bluetooth: HCI device and connection manager initialized
[    0.280483] Bluetooth: HCI socket layer initialized
[    0.285374] Bluetooth: L2CAP socket layer initialized
[    0.290469] pwm module init!
[    0.294582] g2d 5410000.g2d: Adding to iommu group 0
[    0.299855] G2D: rcq version initialized.major:252
[    0.305390] clocksource: Switched to clocksource arch_sys_counter
[    0.312942] NET: Registered protocol family 2
[    0.318048] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[    0.326460] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.334136] TCP bind hash table entries: 1024 (order: 1, 8192 bytes, linear)
[    0.341231] TCP: Hash tables configured (established 1024 bind 1024)
[    0.347696] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[    0.354246] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[    0.361445] NET: Registered protocol family 1
[    0.367866] workingset: timestamp_bits=30 max_order=15 bucket_order=0
[    0.378409] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.384387] ntfs: driver 2.1.32 [Flags: R/W].
[    0.417244] io scheduler mq-deadline registered
[    0.421798] io scheduler kyber registered
[    0.427050] [DISP]disp_module_init
[    0.430866] disp 5000000.disp: Adding to iommu group 0
[    0.452727] display_fb_request,fb_id:0
[    0.460060] [DISP] Fb_copy_boot_fb,line:1443:
[    0.460063] no boot_fb0
[    0.467346] disp_al_manager_apply ouput_type:0
[    0.472402] [DISP]disp_module_init finish
[    0.477221] [DISP] lcd_clk_config,line:732:
[    0.477233] disp 0, clk: pll(364000000),clk(364000000),dclk(52000000) dsi_rate(364000000)
[    0.477233]      clk real:pll(360000000),clk(360000000),dclk(51428571) dsi_rate(0)
[    0.477485] sunxi_sid_init()551 - insmod ok
[    0.502495] misc dump reg init
[    0.506343] dma-buf: Running sanitycheck
[    0.510263] dma-buf: Running dma_fence
[    0.514013] sizeof(dma_fence)=48
[    0.517387] dma-buf: Running dma_fence/sanitycheck
[    0.522190] dma-buf: Running dma_fence/test_signaling
[    0.527281] dma-buf: Running dma_fence/test_add_callback
[    0.532603] dma-buf: Running dma_fence/test_late_add_callback
[    0.538378] dma-buf: Running dma_fence/test_rm_callback
[    0.543595] dma-buf: Running dma_fence/test_late_rm_callback
[    0.549266] dma-buf: Running dma_fence/test_status
[    0.554067] dma-buf: Running dma_fence/test_error
[    0.558784] dma-buf: Running dma_fence/test_wait
[    0.563396] dma-buf: Running dma_fence/test_wait_timeout
[    0.605408] dma-buf: Running dma_fence/test_stub
[    0.610065] dma-buf: Running dma_fence/race_signal_callback
[    0.685465] platform 2000c17.pwm7: pinctrl_get failed
[    0.690544] [DISP] disp_device_attached_and_enable,line:233:
[    0.690548] attached ok, mgr0<-->dev0
[    0.699925] thread_signal_callback[0] completed 37409 passes, 2729 misses
[    0.706767] thread_signal_callback[1] completed 48227 passes, 13547 misses
[    0.706790] [DISP] disp_device_attached_and_enable,line:236:
[    0.706798] type:1,mode:0,fmt:rgb,bits:8bits,eotf:4,cs:0 dvi_hdmi:2, range:2 scan:0 ratio:8
[    0.795416] thread_signal_callback[0] completed 42021 passes, 42020 misses
[    0.802318] thread_signal_callback[1] completed 42076 passes, 42075 misses
[    0.809991] libphy: Fixed MDIO Bus: probed
[    0.814604] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.821184] sunxi-ehci: EHCI SUNXI driver
[    0.825559] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.831762] sunxi-ohci: OHCI SUNXI driver
[    0.836095] i2c /dev entries driver
[    0.839686] IR NEC protocol handler initialized
[    0.844232] IR RC5(x/sz) protocol handler initialized
[    0.849308] Bluetooth: HCI UART driver ver 2.3
[    0.853746] Bluetooth: HCI UART protocol H4 registered
[    0.858904] Bluetooth: HCI UART protocol BCSP registered
[    0.865492] exFAT: Version 1.3.0
[    0.869118] NET: Registered protocol family 17
[    0.873971] Registering SWP/SWPB emulation handler
[    0.895758] UBI error: cannot open mtd sys, error -2
[    0.900735] UBI: block: can't open volume on ubi0_-1, err=-19
[    0.908304] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    0.915439] clk: Not disabling unused clocks
[    0.917013] cfg80211: failed to load regulatory.db
[    0.921200] alloc_fd: slot 0 not NULL!
[    0.929795] Warning: unable to open an initial console.
[    0.935182] /dev/root: Can't open blockdev
[    0.939302] VFS: Cannot open root device "ubiblock0_5" or unknown-block(0,0): error -6
[    0.947254] Please append a correct "root=" boot option; here are the available partitions:
[    0.955624] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    0.963906] CPU0: stopping
[    0.966624] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.61 #26
[    0.972619] Hardware name: Generic DT based system
[    0.977432] [<c010de4c>] (unwind_backtrace) from [<c010a5f4>] (show_stack+0x10/0x14)
[    0.985196] [<c010a5f4>] (show_stack) from [<c0583c08>] (dump_stack+0x88/0xa4)
[    0.992437] [<c0583c08>] (dump_stack) from [<c010c234>] (handle_IPI+0xe4/0x180)
[    0.999759] [<c010c234>] (handle_IPI) from [<c02f13b4>] (gic_handle_irq+0x70/0x78)
[    1.007341] [<c02f13b4>] (gic_handle_irq) from [<c01021cc>] (__irq_svc+0x6c/0xa8)
[    1.014836] Exception stack(0xc0901f40 to 0xc0901f88)
[    1.019885] 1f40: 000002a4 c76b9334 00000000 c0114740 00000001 c0900000 c0903de8 c0903e24
[    1.028070] 1f60: c093b000 c77ff600 c08240c0 00000000 c0a41748 c0901f90 c0107f48 c0107f38
[    1.036250] 1f80: 60000013 ffffffff
[    1.039749] [<c01021cc>] (__irq_svc) from [<c0107f38>] (arch_cpu_idle+0x1c/0x38)
[    1.047165] [<c0107f38>] (arch_cpu_idle) from [<c013d3dc>] (do_idle+0xd4/0x128)
[    1.054493] [<c013d3dc>] (do_idle) from [<c013d6c8>] (cpu_startup_entry+0x18/0x20)
[    1.062066] [<c013d6c8>] (cpu_startup_entry) from [<c0800c74>] (start_kernel+0x358/0x3e8)
[    1.070243] [<c0800c74>] (start_kernel) from [<00000000>] (0x0)
[    1.076179] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---

劳烦大神帮忙看看，我有修改过root=ubi0_5,也一样挂载不了

@whycan 按大神的做法我能编译出固件，但是rootfs挂载不起来

@whycan 多谢

请问楼主是用什么flash，我用了D1的tina SDK，编译SPI nor/nand flash固件不能正常跑起来

root@TinaLinux:/# tplayerdemo rtsp://192.168.42.103
WARNING: awplayer <cdx_log_set_level:30>: cdx Set log level to 6
INFO : cedarc CedarPluginVDInit:79: register h264 decoder success!
INFO : cedarc CedarPluginVDInit:84: register mjpeg decoder success!
INFO : cedarc CedarPluginVDInit:86: register mpeg2 decoder success!
INFO : cedarc CedarPluginVDInit:92: register mpeg4dx decoder success!
INFO : cedarc CedarPluginVDInit:79: register mpeg4H263 decoder success!
INFO : cedarc CedarPluginVDInit:90: register mpeg4Normal decoder success!
INFO : cedarc CedarPluginVDInit:74: register vc1 decoder success!
INFO : cedarc CedarPluginVDInit:85: register h265 decoder success!

• This program implements a simple player, you can type commands to control the player.
• To show what commands supported, type 'help'.

dd: writing '/dev/fb0': No space left on device
9601+0 records in
9600+0 records out
argc = 2
argv[0] = tplayerdemo
argv[1] = rtsp://192.168.42.103
may be is one file:cut down suffix is:.103
0:can not play this file:tplayerdemo
destroy all tplayer

• Quit the program, goodbye!

貌似都不能识别RTSP地址

缺少t113_linux_cedarx.conf文件，拷贝一个类似的就好了