OMG! Omega2 is really sensible to power drops. I finally use an oscilloscope to monitor power and see some small sag while booting before hang.
I solve the problem sordering directly power wires, maybe my connectors do not touch correctly or dont have enought contact surface.
Im using Onion2+ without dock. I power it from a lab power supply with thick wires and a 100uF cap near power pins. I also connect a serial adapter to TX and RX pins to see boot log.
After power up i see ALWAIS the same log, after last line power comsumption drop to about 50mA and nothing else happends.
What can i do? How can i update if i cant get the board to start? Can i boot from an SD card?
Here my boot log:
____ _ ____
/ __ \___ (_)__ ___ / __ \__ _ ___ ___ ____ _
/ /_/ / _ \/ / _ \/ _ \ / /_/ / ' \/ -_) _ `/ _ `/
\____/_//_/_/\___/_//_/ \____/_/_/_/\__/\_, /\_,_/
W H A T W I L L Y O U I N V E N T ? /___/"
Board: Onion Omega2 APSoC DRAM: 128 MB
relocate_code Pointer at: 87f5c000
******************************
Software System Reset Occurred
******************************
flash manufacture id: c2, device id 20 19
find flash: MX25L25635E
*** Warning - bad CRC, using default environment
============================================
Onion Omega2 UBoot Version: 4.3.0.3
--------------------------------------------
ASIC 7628_MP (Port5<->None)
DRAM component: 1024 Mbits DDR, width 16
DRAM bus: 16 bit
Total memory: 128 MBytes
Flash component: SPI Flash
Date:Nov 8 2019 Time:13:46:42
============================================
icache: sets:512, ways:4, linesz:32 ,total:65536
dcache: sets:256, ways:4, linesz:32 ,total:32768
CPU freq = 575 MHZ
Estimated memory size = 128 Mbytes
Resetting MT7628 PHY.
Initializing MT7688 GPIO system.
wifi mac address = 40A36BC59E77.
**************************************
* Hold Reset button for more options *
**************************************
Boot Linux from Flash NO RESET PRESSED.
## Booting image at bc050000 ...
Image Name: MIPS OpenWrt Linux-4.14.81
Image Type: MIPS Linux Kernel Image (lzma compressed)
Data Size: 1572605 Bytes = 1.5 MB
Load Address: 80000000
Entry Point: 80000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
No initrd
## Transferring control to Linux (at address 80000000) ...
## Giving linux memsize in MB, 128
Starting kernel ...
[ 0.000000] Linux version 4.14.81 (root@9be0ff6623b9) (gcc version 7.3.0 (OpenWrt GCC 7.3.0 r0-)) #0 Mon Aug 26 14:30:37 2019
[ 0.000000] Board has DDR2
[ 0.000000] Analog PMU set to hw control
[ 0.000000] Digital PMU set to hw control
[ 0.000000] SoC Type: MediaTek MT7688 ver:1 eco:2
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU0 revision is: 00019655 (MIPS 24KEc)
[ 0.000000] MIPS: machine is Onion Omega2+
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 08000000 @ 00000000 (usable)
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x0000000000000000-0x0000000007ffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x0000000007ffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
[ 0.000000] random: get_random_bytes called from start_kernel+0x8c/0x474 with crng_init=0
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 32512
[ 0.000000] Kernel command line: console=ttyS0,115200 rootfstype=squashfs,jffs2
[ 0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[ 0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.000000] Writing ErrCtl register=00062a70
[ 0.000000] Readback ErrCtl register=00062a70
[ 0.000000] Memory: 124712K/131072K available (3613K kernel code, 198K rwdata, 900K rodata, 208K init, 202K bss, 6360K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS: 256
[ 0.000000] intc: using register map from devicetree
[ 0.000000] CPU Clock: 580MHz
[ 0.000000] timer_probe: no matching timers found
[ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6590553264 ns
[ 0.000012] sched_clock: 32 bits at 290MHz, resolution 3ns, wraps every 7405115902ns
[ 0.007539] Calibrating delay loop... 385.84 BogoMIPS (lpj=1929216)
[ 0.073498] pid_max: default: 32768 minimum: 301
[ 0.078197] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.084543] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.098635] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.108130] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.114076] pinctrl core: initialized pinctrl subsystem
[ 0.119646] NET: Registered protocol family 16
[ 0.152471] mt7621_gpio 10000600.gpio: registering 32 gpios
[ 0.158075] mt7621_gpio 10000600.gpio: registering 32 gpios
[ 0.163679] mt7621_gpio 10000600.gpio: registering 32 gpios
[ 0.170172] i2c-mt7621 10000900.i2c: clock 100 kHz
[ 0.179626] clocksource: Switched to clocksource MIPS
[ 0.185864] NET: Registered protocol family 2
[ 0.191048] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.197740] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.203926] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.210174] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.215774] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.222136] NET: Registered protocol family 1
[ 0.230076] Crashlog allocated RAM at address 0x3f00000
[ 0.236647] workingset: timestamp_bits=30 max_order=15 bucket_order=0
[ 0.248850] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.254474] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 0.274220] io scheduler noop registered
[ 0.277951] io scheduler deadline registered (default)
[ 0.283969] Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
[ 0.291316] console [ttyS0] disabled
[ 0.294753] 10000c00.uartlite: ttyS0 at MMIO 0x10000c00 (irq = 28, base_baud = 2500000) is a 16550A
[ 0.303527] console [ttyS0] enabled
[ 0.303527] console [ttyS0] enabled
[ 0.310519] bootconsole [early0] disabled
[ 0.310519] bootconsole [early0] disabled
[ 0.319270] 10000d00.uart1: ttyS1 at MMIO 0x10000d00 (irq = 29, base_baud = 2500000) is a 16550A
[ 0.328866] 10000e00.uart2: ttyS2 at MMIO 0x10000e00 (irq = 30, base_baud = 2500000) is a 16550A
[ 0.338369] cacheinfo: Failed to find cpu0 device node
[ 0.343620] cacheinfo: Unable to detect cache hierarchy for CPU 0
[ 0.350603] spi-mt7621 10000b00.spi: sys_freq: 193333333
[ 0.361680] m25p80 spi0.0: mx25l25635e (32768 Kbytes)
[ 0.366864] 5 fixed-partitions partitions found on MTD device spi0.0
[ 0.373367] Creating 5 MTD partitions on "spi0.0":
[ 0.378232] 0x000000000000-0x000000030000 : "u-boot"
[ 0.384220] 0x000000030000-0x000000040000 : "u-boot-env"
[ 0.390514] 0x000000040000-0x000000050000 : "factory"
[ 0.396449] 0x000000050000-0x000001f80000 : "firmware"
[ 0.471027] 2 uimage-fw partitions found on MTD device firmware
[ 0.477056] 0x000000050000-0x0000001cff3d : "kernel"
[ 0.483068] 0x0000001cff3d-0x000001f80000 : "rootfs"
[ 0.488893] mtd: device 5 (rootfs) set to be root filesystem
[ 0.496164] 1 squashfs-split partitions found on MTD device rootfs
[ 0.502503] 0x000000970000-0x000001f80000 : "rootfs_data"
[ 0.508915] 0x000001f80000-0x000002000000 : "user"
[ 0.515658] libphy: Fixed MDIO Bus: probed
[ 0.531563] rt3050-esw 10110000.esw: link changed 0x00
[ 0.538438] mtk_soc_eth 10100000.ethernet eth0: mediatek frame engine at 0xb0100000, irq 5
[ 0.547134] i2c /dev entries driver
[ 0.552556] NET: Registered protocol family 10
[ 0.561552] Segment Routing with IPv6
[ 0.565387] NET: Registered protocol family 17
[ 0.570017] 8021q: 802.1Q VLAN Support v1.8
[ 0.583800] VFS: Mounted root (squashfs filesystem) readonly on device 31:5.
[ 0.592148] Freeing unused kernel memory: 208K
[ 0.596654] This architecture does not have kernel memory protection.
[ 1.514685] init: Console is alive
[ 1.518372] init: - watchdog -
[ 2.244178] random: fast init done
[ 5.014409] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[ 5.309463] usbcore: registered new interface driver usbfs
[ 5.315212] usbcore: registered new interface driver hub
[ 5.320766] usbcore: registered new device driver usb
[ 5.332437] exFAT: Version 1.2.9
[ 5.371699] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 5.387953] SCSI subsystem initialized
[ 5.397482] ehci-platform: EHCI generic platform driver
[ 5.413180] phy phy-10120000.usbphy.0: remote usb device wakeup disabled
[ 5.420009] phy phy-10120000.usbphy.0: UTMI 16bit 30MHz
[ 5.425323] ehci-platform 101c0000.ehci: EHCI Host Controller
[ 5.431196] ehci-platform 101c0000.ehci: new USB bus registered, assigned bus number 1
[ 5.439365] ehci-platform 101c0000.ehci: irq 26, io mem 0x101c0000
[ 5.469674] ehci-platform 101c0000.ehci: USB 2.0 started, EHCI 1.00
[ 5.477134] hub 1-0:1.0: USB hub found
[ 5.481405] hub 1-0:1.0: 1 port detected
[ 5.491455] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 5.499309] ohci-platform: OHCI generic platform driver
[ 5.505000] ohci-platform 101c1000.ohci: Generic Platform OHCI controller
[ 5.511972] ohci-platform 101c1000.ohci: new USB bus registered, assigned bus number 2
[ 5.520127] ohci-platform 101c1000.ohci: irq 26, io mem 0x101c1000
[ 5.594696] hub 2-0:1.0: USB hub found
[ 5.598971] hub 2-0:1.0: 1 port detected
[ 5.617519] MTK MSDC device init.
[ 5.679859] mtk-sd: MediaTek MT6575 MSDC Driver
[ 5.688949] sdhci: Secure Digital Host Controller Interface driver
[ 5.695293] sdhci: Copyright(c) Pierre Ossman
[ 5.701102] sdhci-pltfm: SDHCI platform and OF driver helper
[ 5.711427] usbcore: registered new interface driver usb-storage
[ 5.721294] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[ 5.739142] init: - preinit -
[ 7.202479] rt3050-esw 10110000.esw: link changed 0x00
Press the [f] key and hit [enter] to enter failsafe mode
Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level
[ 7.403359] random: procd: uninitialized urandom read (4 bytes read)
[ 10.655422] mount_root: loading kmods from internal overlay
[ 10.727645] kmodloader: loading kernel modules from //etc/modules-boot.d/*
[ 10.741124] kmodloader: done loading kernel modules from //etc/modules-boot.d/*
[ 11.928301] block: attempting to load /etc/config/fstab
[ 11.939078] block: unable to load configuration (fstab: Entry not found)
[ 11.946048] block: no usable configuration
[ 11.951210] mount_root: jffs2 not ready yet, using temporary tmpfs overlay
[ 12.027646] urandom-seed: Seed file not found (/etc/urandom.seed)
[ 12.237649] procd: - early -
[ 12.241525] procd: - watchdog -
[ 12.915745] procd: - watchdog -
[ 12.919239] procd: - ubus -
[ 13.016407] random: ubusd: uninitialized urandom read (4 bytes read)
[ 13.215312] random: ubusd: uninitialized urandom read (4 bytes read)
[ 13.222384] random: ubusd: uninitialized urandom read (4 bytes read)
[ 13.229970] procd: - init -
Please press Enter to activate this console.
[ 13.784226] kmodloader: loading kernel modules from /etc/modules.d/*
[ 13.953072] RPC: Registered named UNIX socket transport module.
[ 13.959085] RPC: Registered udp transport module.
[ 13.963914] RPC: Registered tcp transport module.
[ 13.968682] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 13.987582] ntfs: driver 2.1.32 [Flags: R/O MODULE].
[ 14.079954] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 14.696927]
[ 14.696927]
[ 14.696927] === pAd = c0622000, size = 1178064 ===
[ 14.696927]
[ 14.708270] mt7628_init(FW(8a00), HW(8a01), CHIPID(7628))
[ 14.857514] Linux video capture interface: v2.00
[ 14.874949] hidraw: raw HID events driver (C) Jiri Kosina
[ 14.904553] ledchain: pwm_base=0xB0005000
[ 14.908760] ledchain: v2 - Device: /dev/ledchain2
[ 14.913609] ledchain: - PWM channel : 2
[ 14.917761] ledchain: - PWM buffer size: 12
[ 14.922011] ledchain: - Number of LEDs : 1
[ 14.926161] ledchain: - Inverted : 0
[ 14.930321] ledchain: - LED type : WS2812
[ 14.934911] ledchain: - Max retries : 3
[ 14.939060] ledchain: - Max Tpassive : 10000 nS
[ 15.101207] Bluetooth: Core ver 2.22
[ 15.104937] NET: Registered protocol family 31
[ 15.109440] Bluetooth: HCI device and connection manager initialized
[ 15.115956] Bluetooth: HCI socket layer initialized
[ 15.120921] Bluetooth: L2CAP socket layer initialized
[ 15.126076] Bluetooth: SCO socket layer initialized
[ 15.133896] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 15.139294] Bluetooth: BNEP filters: protocol multicast
[ 15.144672] Bluetooth: BNEP socket layer initialized
[ 15.157381] usbcore: registered new interface driver btusb
[ 15.167759] usbcore: registered new interface driver cdc_acm
[ 15.173577] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[ 15.219304] Bluetooth: HCI UART driver ver 2.3
[ 15.223902] Bluetooth: HCI UART protocol H4 registered
[ 15.229112] Bluetooth: HCI UART protocol BCSP registered
[ 15.247286] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 15.253385] Bluetooth: HIDP socket layer initialized
[ 15.264754] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 15.292787] nf_conntrack version 0.5.0 (2048 buckets, 8192 max)
[ 15.391615] rt2880-pinmux pinctrl: pin io18 already requested by pinctrl; cannot claim for 10005000.pwm
[ 15.401227] rt2880-pinmux pinctrl: pin-18 (10005000.pwm) status -22
[ 15.407587] rt2880-pinmux pinctrl: could not request pin 18 (io18) from group pwm0 on device rt2880-pinmux
[ 15.417487] mtk-pwm 10005000.pwm: Error applying setting, reverse things back
[ 15.432069] Bluetooth: RFCOMM TTY layer initialized
[ 15.437045] Bluetooth: RFCOMM socket layer initialized
[ 15.442349] Bluetooth: RFCOMM ver 1.11
[ 15.463596] usbcore: registered new interface driver ums-alauda
[ 15.472888] usbcore: registered new interface driver ums-cypress
[ 15.482435] usbcore: registered new interface driver ums-datafab
[ 15.491656] usbcore: registered new interface driver ums-freecom
[ 15.501102] usbcore: registered new interface driver ums-isd200
[ 15.510667] usbcore: registered new interface driver ums-jumpshot
[ 15.520010] usbcore: registered new interface driver ums-karma
[ 15.530185] usbcore: registered new interface driver ums-sddr09
[ 15.539539] usbcore: registered new interface driver ums-sddr55
[ 15.549409] usbcore: registered new interface driver ums-usbat
[ 15.562829] usbcore: registered new interface driver usbhid
[ 15.568489] usbhid: USB HID core driver
[ 15.576878] usbcore: registered new interface driver usblp
[ 15.592522] usbcore: registered new interface driver usbserial
[ 15.598544] usbcore: registered new interface driver usbserial_generic
[ 15.605329] usbserial: USB Serial support registered for generic
[ 15.624993] Driver for 1-wire Dallas network protocol.
[ 15.654401] xt_time: kernel timezone is -0000
[ 15.661426] usbcore: registered new interface driver ch341
[ 15.667095] usbserial: USB Serial support registered for ch341-uart
[ 15.676573] usbcore: registered new interface driver cp210x
[ 15.682405] usbserial: USB Serial support registered for cp210x
[ 15.692431] usbcore: registered new interface driver ftdi_sio
[ 15.698363] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 15.719919] usbcore: registered new interface driver pl2303
[ 15.725673] usbserial: USB Serial support registered for pl2303
[ 15.737599] PPP generic driver version 2.4.2
[ 15.745446] NET: Registered protocol family 24
[ 15.764994] usbcore: registered new interface driver snd-usb-audio
[ 15.788422] usbcore: registered new interface driver uvcvideo
[ 15.794314] USB Video Class driver (1.1.1)
[ 15.805551] usbcore: registered new interface driver option
[ 15.811401] usbserial: USB Serial support registered for GSM modem (1-port)
[ 15.824121] kmodloader: done loading kernel modules from /etc/modules.d/*
[ 16.166038] urandom_read: 5 callbacks suppressed
[ 16.166048] random: jshn: uninitialized urandom read (4 bytes read)
[ 26.512136] jffs2: notice: (1236) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
[ 30.901412] IPv6: ADDRCONF(NETDEV_UP): br-wlan: link is not ready
[ 31.593655]
[ 31.593655] _ _____ ___ ___ _________ ___ ____
[ 31.593655] | | /| / / _ | / _ \/ _ \ / ___/ __ \/ _ \/ __/ V1.1
[ 31.593655] | |/ |/ / __ |/ , _/ ___/ / /__/ /_/ / , _/ _/
[ 31.593655] |__/|__/_/ |_/_/|_/_/ \___/\____/_/|_/___/
[ 31.593655] Onion Enhanced MT7688 WiFi Driver
[ 31.593655]
[ 31.849687] DMA Scheduler Mode=0(LMAC)
[ 31.853516] efuse_probe: efuse = 10000012
[ 31.857636] 1. Phy Mode = 14
Led power of after this line and console locks, power comsumptions down to 50mA.