HDMI does not wok on A10 (Olinuxino Lime)

[conchyliferous]

Hello.

I can't get HDMI to work. There are no signal during boot or when the system is booted. I can access the it via SSH without problems, and HDMI works fine from the Android installation in the on-board NAND.

What can I do? How can I debug this?

This is the board I have: https://www.olimex.com/Products/OLinuXino/A10/A10-OLinuXino-LIME-4GB/open-source-hardware

The dmesg:
$this->bbcode_second_pass_code('', '[ 0.000000] Booting Linux on physical CPU 0
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.4.90-3-ARCH (nobody@root-chroot-copy) (gcc version 4.8.2 20131219 (prerelease) (GCC) ) #1 PREEMPT Mon Sep 29 23:12:06 MDT 2014
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine: sun4i
[ 0.000000] Memory Reserved:
[ 0.000000] SYS : 0x43000000 - 0x4300ffff ( 64 kB)
[ 0.000000] VE : 0x44000000 - 0x48ffffff ( 80 MB)
[ 0.000000] LCD : 0x49000000 - 0x49ffffff ( 16 MB)
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] sunxi: Allwinner A10 revision C (AW1623/sun4i) detected.
[ 0.000000] On node 0 totalpages: 131072
[ 0.000000] free_area_init_node: node 0, pgdat c0762dc0, node_mem_map d0000000
[ 0.000000] DMA zone: 512 pages used for memmap
[ 0.000000] DMA zone: 0 pages reserved
[ 0.000000] DMA zone: 65024 pages, LIFO batch:15
[ 0.000000] Normal zone: 512 pages used for memmap
[ 0.000000] Normal zone: 65024 pages, LIFO batch:15
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
[ 0.000000] Kernel command line: console=ttyS0,115200 hdmi.audio=EDID:0 disp.screen0_output_mode=1280x720p50 sunxi_g2d_mem_reserve=0 sunxi_fb_mem_reserve=16 root=/dev/mmcblk0p2 rootwait panic=10
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] allocated 1048576 bytes of page_cgroup
[ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.000000] Memory: 512MB = 512MB total
[ 0.000000] Memory: 412108k/412108k available, 112180k reserved, 0K highmem
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xe0800000 - 0xff000000 ( 488 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc06e4f94 (7028 kB)
[ 0.000000] .init : 0xc06e5000 - 0xc070f000 ( 168 kB)
[ 0.000000] .data : 0xc0710000 - 0xc0763b80 ( 335 kB)
[ 0.000000] .bss : 0xc0763ba4 - 0xc080c7d8 ( 676 kB)
[ 0.000000] SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS:128
[ 0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
[ 0.000000] Console: colour dummy device 80x30
[ 0.000085] Calibrating delay loop... 1001.88 BogoMIPS (lpj=5009408)
[ 0.039998] pid_max: default: 32768 minimum: 301
[ 0.040120] Mount-cache hash table entries: 512
[ 0.040556] Initializing cgroup subsys cpuacct
[ 0.040570] Initializing cgroup subsys memory
[ 0.040595] Initializing cgroup subsys devices
[ 0.040604] Initializing cgroup subsys freezer
[ 0.040613] Initializing cgroup subsys blkio
[ 0.040630] Initializing cgroup subsys perf_event
[ 0.040698] CPU: Testing write buffer coherency: ok
[ 0.040858] hw perfevents: enabled with ARMv7 Cortex-A8 PMU driver, 5 counters available
[ 0.040916] Setting up static identity map for 0x404c7ec8 - 0x404c7f20
[ 0.041505] devtmpfs: initialized
[ 0.042776] dummy:
[ 0.042925] NET: Registered protocol family 16
[ 0.043448] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.043937] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.044763] Init eGon pin module V2.0
[ 0.044790] SOFTWINNER DMA Driver, (c) 2003-2004,2006 Simtec Electronics
[ 0.044856] Initialize DMAC OK
[ 0.048953] bio: create slab <bio-0> at 0
[ 0.049218] sunxi_gpio driver init ver 1.3
[ 0.049904] gpiochip_add: registered GPIOs 1 to 75 on device: A1X_GPIO
[ 0.050295] SCSI subsystem initialized
[ 0.050455] libata version 3.00 loaded.
[ 0.050594] usbcore: registered new interface driver usbfs
[ 0.050647] usbcore: registered new interface driver hub
[ 0.050742] usbcore: registered new device driver usb
[ 0.050907] Linux video capture interface: v2.00
[ 0.051140] Advanced Linux Sound Architecture Driver Version 1.0.25.
[ 0.051466] Bluetooth: Core ver 2.16
[ 0.051492] NET: Registered protocol family 31
[ 0.051500] Bluetooth: HCI device and connection manager initialized
[ 0.051511] Bluetooth: HCI socket layer initialized
[ 0.051519] Bluetooth: L2CAP socket layer initialized
[ 0.051527] Bluetooth: SCO socket layer initialized
[ 0.051871] Switching to clocksource aw_64bits_counter
[ 0.052002] FS-Cache: Loaded
[ 0.052112] CacheFiles: Loaded
[ 0.058250] NET: Registered protocol family 2
[ 0.058442] IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.058770] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[ 0.058987] TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.059114] TCP: Hash tables configured (established 16384 bind 16384)
[ 0.059124] TCP: reno registered
[ 0.059134] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.059151] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.059329] NET: Registered protocol family 1
[ 0.059624] RPC: Registered named UNIX socket transport module.
[ 0.059636] RPC: Registered udp transport module.
[ 0.059644] RPC: Registered tcp transport module.
[ 0.059652] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.067098] VFS: Disk quotas dquot_6.5.2
[ 0.067253] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.068420] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.068730] NFS: Registering the id_resolver key type
[ 0.068816] FS-Cache: Netfs 'nfs' registered for caching
[ 0.069244] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[ 0.069744] fuse init (API version 7.18)
[ 0.070594] NILFS version 2 loaded
[ 0.070622] msgmni has been set to 804
[ 0.074164] alg: comp: Compression test 1 failed for lzo-generic: output len = 57
[ 0.074281] alg: No test for stdrng (krng)
[ 0.074529] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[ 0.074647] io scheduler noop registered
[ 0.074657] io scheduler deadline registered
[ 0.074693] io scheduler cfq registered (default)
[ 0.074918] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[ 0.076119] [uart]: used uart info.: 0x11
[ 0.076183] [uart]: serial probe 0 irq 1 mapbase 0x01c28000
[ 0.096421] sunxi-uart.0: ttyS0 at MMIO 0x1c28000 (irq = 1) is a U6_16550A
[ 0.675820] console [ttyS0] enabled
[ 0.679499] [uart]: serial probe 4 irq 17 mapbase 0x01c29000
[ 0.705288] sunxi-uart.4: ttyS1 at MMIO 0x1c29000 (irq = 17) is a U6_16550A
[ 0.712719] G2D: drv_g2d_init
[ 0.712749] G2D: Module initialized.major:252
[ 0.717653] brd: module loaded
[ 0.722853] loop: module loaded
[ 0.726033] [NAND] nand driver version: 0x2 0x9
[ 0.774738] Dev Sunxi softw311 nand: part 1, start 32768, size 32768
[ 0.781094] Dev Sunxi softw311 nand: part 2, start 65536, size 32768
[ 0.787496] Dev Sunxi softw311 nand: part 3, start 98304, size 65536
[ 0.793867] Dev Sunxi softw311 nand: part 4, start 163840, size 1048576
[ 0.800476] Dev Sunxi softw311 nand: part 5, start 1212416, size 524288
[ 0.807102] Dev Sunxi softw311 nand: part 6, start 1736704, size 32768
[ 0.813642] Dev Sunxi softw311 nand: part 7, start 1769472, size 65536
[ 0.820166] Dev Sunxi softw311 nand: part 8, start 1835008, size 262144
[ 0.826791] Dev Sunxi softw311 nand: part 9, start 2097152, size 5685248
[ 0.833503] nand: nanda nandb nandc nandd nande nandf nandg nandh nandi
[ 0.841420] [NAND]nand driver, ok.
[ 0.845266] sw_ahci sw_ahci.0: controller can't do PMP, turning off CAP_PMP
[ 0.852258] sw_ahci sw_ahci.0: forcing PORTS_IMPL to 0x1
[ 0.857612] sw_ahci sw_ahci.0: AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl platform mode
[ 0.866066] sw_ahci sw_ahci.0: flags: ncq sntf pm led clo only pio slum part ccc
[ 0.874180] scsi0 : sw_ahci_platform
[ 0.877953] ata1: SATA max UDMA/133 mmio [mem 0x01c18000-0x01c18fff] port 0x100 irq 56
[ 0.886347] [spi]: sw spi init !!
[ 0.889678] [spi]: Found 1 spi devices in config files
[ 0.894937] [spi]: boards num modalias max_spd_hz bus_num cs mode
[ 0.902533] [spi]: spi_board0 irq gpio not used
[ 0.907062] [spi]: 0 spidev 10000000 2 0 0x3
[ 0.914941] [spi]: bus num = 2, spi used = 1
[ 0.919447] [spi]: source = sdram_pll_p, src_clk = 480000000, mclk 96000000
[ 0.926543] sun4i-spi sun4i-spi.2: master is unqueued, this is deprecated
[ 0.933407] [spi]: allwinners SoC SPI Driver loaded for Bus SPI-2 with 2 Slaves attached
[ 0.941490] [spi]: [spi-2]: driver probe succeed, base f1c17000, irq 12, dma_id 2!
[ 0.949108] sunxi_emac Using mii phy on PortA
[ 0.963613] sunxi_emac Using MAC from SID: 02:16:09:c1:7a:f8
[ 0.970871] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.977642] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.984009] [sw-ehci1]: open clock
[ 1.007367] [sw-ehci1]: Set USB Power ON
[ 1.011291] sw-ehci sw-ehci.1: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.018803] sw-ehci sw-ehci.1: new USB bus registered, assigned bus number 1
[ 1.025951] sw-ehci sw-ehci.1: irq 39, io mem 0x01c14000
[ 1.041929] sw-ehci sw-ehci.1: USB 2.0 started, EHCI 1.00
[ 1.047777] hub 1-0:1.0: USB hub found
[ 1.051541] hub 1-0:1.0: 1 port detected
[ 1.055820] [sw-ohci1]: open clock
[ 1.079182] sw-ohci sw-ohci.1: SW USB2.0 'Open' Host Controller (OHCI) Driver
[ 1.086342] sw-ohci sw-ohci.1: new USB bus registered, assigned bus number 2
[ 1.093427] sw-ohci sw-ohci.1: irq 64, io mem 0x01c14400
[ 1.102093] ehci_irq: port change detect
[ 1.156328] hub 2-0:1.0: USB hub found
[ 1.160087] hub 2-0:1.0: 1 port detected
[ 1.164360] [sw-ehci2]: open clock
[ 1.187729] [sw-ehci2]: Set USB Power ON
[ 1.191652] sw-ehci sw-ehci.2: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.199159] sw-ehci sw-ehci.2: new USB bus registered, assigned bus number 3
[ 1.206306] sw-ehci sw-ehci.2: irq 40, io mem 0x01c1c000
[ 1.221927] sw-ehci sw-ehci.2: USB 2.0 started, EHCI 1.00
[ 1.227705] hub 3-0:1.0: USB hub found
[ 1.231460] hub 3-0:1.0: 1 port detected
[ 1.235709] [sw-ohci2]: open clock
[ 1.241928] ata1: SATA link down (SStatus 0 SControl 300)
[ 1.251966] ehci_irq: port change detect
[ 1.268627] sw-ohci sw-ohci.2: SW USB2.0 'Open' Host Controller (OHCI) Driver
[ 1.275791] sw-ohci sw-ohci.2: new USB bus registered, assigned bus number 4
[ 1.282874] sw-ohci sw-ohci.2: irq 65, io mem 0x01c1c400
[ 1.311938] The port change to OHCI now!
[ 1.346303] hub 4-0:1.0: USB hub found
[ 1.350062] hub 4-0:1.0: 1 port detected
[ 1.354255] Initializing USB Mass Storage driver...
[ 1.359253] usbcore: registered new interface driver usb-storage
[ 1.365350] USB Mass Storage support registered.
[ 1.370007] usbcore: registered new interface driver ums-alauda
[ 1.375993] usbcore: registered new interface driver ums-cypress
[ 1.382062] usbcore: registered new interface driver ums-datafab
[ 1.388103] usbcore: registered new interface driver ums_eneub6250
[ 1.394329] usbcore: registered new interface driver ums-freecom
[ 1.400357] usbcore: registered new interface driver ums-isd200
[ 1.406320] usbcore: registered new interface driver ums-jumpshot
[ 1.412455] usbcore: registered new interface driver ums-karma
[ 1.418310] usbcore: registered new interface driver ums-onetouch
[ 1.424458] usbcore: registered new interface driver ums-realtek
[ 1.430488] usbcore: registered new interface driver ums-sddr09
[ 1.436450] usbcore: registered new interface driver ums-sddr55
[ 1.442434] usbcore: registered new interface driver ums-usbat
[ 1.448390] mousedev: PS/2 mouse device common for all mice
[ 1.454676] sunxi-rtc sunxi-rtc: rtc core: registered rtc as rtc0
[ 1.460799] i2c /dev entries driver
[ 1.464625] config i2c gpio with gpio_config api
[ 1.470474] axp_mfd 0-0034: AXP (CHIP ID: 0x41) detected
[ 1.476055] axp_mfd 0-0034: AXP internal temperature monitoring enabled
[ 1.483269] I2C: i2c-0: AW16XX I2C adapter
[ 1.487405] config i2c gpio with gpio_config api
[ 1.492244] I2C: i2c-1: AW16XX I2C adapter
[ 1.496369] config i2c gpio with gpio_config api
[ 1.501160] I2C: i2c-2: AW16XX I2C adapter
[ 1.505312] usb 2-1: new low-speed USB device number 2 using sw-ohci
[ 1.511781] lirc_dev: IR Remote Control driver registered, major 251
[ 1.518291] IR NEC protocol handler initialized
[ 1.522847] IR RC5(x) protocol handler initialized
[ 1.527632] IR RC6 protocol handler initialized
[ 1.532186] IR JVC protocol handler initialized
[ 1.536712] IR Sony protocol handler initialized
[ 1.541323] IR RC5 (streamzap) protocol handler initialized
[ 1.546917] IR SANYO protocol handler initialized
[ 1.551615] IR MCE Keyboard/mouse protocol handler initialized
[ 1.557458] IR LIRC bridge handler initialized
[ 1.561946] [ace_drv] start!!!
[ 1.565233] [ace_drv] init end!!!
[ 1.568546] [pa_drv] start!!!
[ 1.571705] [pa_drv] init end!!!
[ 1.575065] axp20_ldo1: 1300 mV
[ 1.579405] axp20_ldo2: 1800 <--> 3300 mV at 3000 mV
[ 1.585555] axp20_ldo3: 700 <--> 3500 mV at 2800 mV
[ 1.591581] axp20_ldo4: 1250 <--> 3300 mV at 2800 mV
[ 1.597780] axp20_buck2: 700 <--> 2275 mV at 1400 mV
[ 1.603954] axp20_buck3: 700 <--> 3500 mV at 1250 mV
[ 1.609606] axp20_ldoio0: 1800 <--> 3300 mV at 2800 mV
[ 1.615322] input: axp20-supplyer as /devices/platform/sunxi-i2c.0/i2c-0/0-0034/axp20-supplyer.28/input/input0
[ 1.639436] Bluetooth: HCI UART driver ver 2.2
[ 1.643914] Bluetooth: HCI H4 protocol initialized
[ 1.648700] Bluetooth: HCI BCSP protocol initialized
[ 1.653725] Bluetooth: HCILL protocol initialized
[ 1.658590] cpuidle: using governor ladder
[ 1.662733] cpuidle: using governor menu
[ 1.666690] [mmc-msg] sw_mci_init
[ 1.670104] [mmc-msg] MMC host used card: 0x9, boot card: 0x0, io_card 8
[ 1.677098] [mmc-msg] sdc0 set round clock 400000, src 24000000
[ 1.683243] [mmc-msg] sdc0 set ios: clk 0Hz bm OD pm OFF vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[ 1.693427] [mmc-msg] sdc0 Probe: base:0xf1c0f000 irq:32 sg_cpu:e0968000(4fc00000) ret 0.
[ 1.701717] [mmc-msg] sdc3 set round clock 400000, src 24000000
[ 1.707792] [mmc-msg] sdc3 set ios: clk 0Hz bm OD pm OFF vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[ 1.717960] [mmc-msg] sdc3 Probe: base:0xf1c12000 irq:35 sg_cpu:e096a000(4fc01000) ret 0.
[ 1.726227] [mmc_pm]: no sdio card used in configuration
[ 1.731560] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.738150] usbcore: registered new interface driver usbhid
[ 1.744094] usbhid: USB HID core driver
[ 1.748284] Linux telephony interface: v1.00
[ 1.754307] IPv4 over IPv4 tunneling driver
[ 1.759483] input: GASIA USB KB V11 as /devices/platform/sw-ohci.1/usb2/2-1/2-1:1.0/input/input1
[ 1.768806] TCP: cubic registered
[ 1.772170] Initializing XFRM netlink socket
[ 1.776980] NET: Registered protocol family 10
[ 1.782254] generic-usb 0003:0E8F:0021.0001: input,hidraw0: USB HID v1.10 Keyboard [GASIA USB KB V11] on usb-sw-ohci-1/input0
[ 1.793923] NET: Registered protocol family 17
[ 1.798387] NET: Registered protocol family 15
[ 1.803104] Bluetooth: RFCOMM TTY layer initialized
[ 1.808332] Bluetooth: RFCOMM socket layer initialized
[ 1.813513] Bluetooth: RFCOMM ver 1.11
[ 1.817308] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 1.822647] Bluetooth: BNEP filters: protocol multicast
[ 1.828796] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 1.834872] 8021q: 802.1Q VLAN Support v1.8
[ 1.839112] [mmc_pm]: No sdio card, please check your config !!
[ 1.845442] input: GASIA USB KB V11 as /devices/platform/sw-ohci.1/usb2/2-1/2-1:1.1/input/input2
[ 1.854281] Registering the dns_resolver key type
[ 1.859188] VFP support v0.3:
[ 1.862385] generic-usb 0003:0E8F:0021.0002: input,hidraw1: USB HID v1.10 Device [GASIA USB KB V11] on usb-sw-ohci-1/input1
[ 1.873725] implementor 41 architecture 3 part 30 variant c rev 3
[ 1.879832] Registering SWP/SWPB emulation handler
[ 1.885656] registered taskstats version 1
[ 1.890330] UBIFS error (pid 1): compr_init: cannot initialize compressor lzo, error -2
[ 1.898973] axp20_buck3: incomplete constraints, leaving on
[ 1.904812] axp20_buck2: incomplete constraints, leaving on
[ 1.910622] axp20_ldo4: incomplete constraints, leaving on
[ 1.916373] axp20_ldo3: incomplete constraints, leaving on
[ 1.922121] axp20_ldo2: incomplete constraints, leaving on
[ 1.927968] sunxi-rtc sunxi-rtc: setting system clock to 2010-01-01 02:13:33 UTC (1262312013)
[ 1.936569] ALSA device list:
[ 1.939535] #0: sunxi-CODEC Audio Codec
[ 1.944010] Waiting for root device /dev/mmcblk0p2...
[ 2.686860] [mmc-msg] mmc 0 detect change, present 1
[ 3.181908] [mmc-msg] sdc0 set ios: clk 0Hz bm PP pm UP vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[ 3.190856] [mmc-msg] sdc0 power on
[ 3.194384] [ccmu] set sdc0 reset status to 0 failed!
[ 3.199432] [mmc-err] Failed to release sdc0 reset
[ 3.221897] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[ 3.231303] [mmc-msg] sdc0 set round clock 400000, src 24000000
[ 3.314229] [mmc-err] smc 0 err, cmd 52, RTO
[ 3.319406] [mmc-err] smc 0 err, cmd 52, RTO
[ 3.323779] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[ 3.335551] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[ 3.347074] [mmc-err] smc 0 err, cmd 5, RTO
[ 3.352161] [mmc-err] smc 0 err, cmd 5, RTO
[ 3.357249] [mmc-err] smc 0 err, cmd 5, RTO
[ 3.362336] [mmc-err] smc 0 err, cmd 5, RTO
[ 3.367245] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[ 3.376673] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[ 3.388446] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[ 3.448565] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing SD-HS(SDR25) dt B
[ 3.457885] [mmc-msg] sdc0 set ios: clk 50000000Hz bm PP pm ON vdd 3.3V width 1 timing SD-HS(SDR25) dt B
[ 3.467401] [mmc-msg] sdc0 set round clock 43636363, src 480000000
[ 3.528660] [mmc-msg] sdc0 set ios: clk 50000000Hz bm PP pm ON vdd 3.3V width 4 timing SD-HS(SDR25) dt B
[ 3.538158] mmc0: new high speed SDHC card at address e624
[ 3.543922] mmcblk0: mmc0:e624 SU08G 7.40 GiB
[ 3.552561] mmcblk0: p1 p2
[ 3.592736] EXT4-fs (mmcblk0p2): mounting ext3 file system using the ext4 subsystem
[ 3.615998] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 3.624159] VFS: Mounted root (ext3 filesystem) on device 179:2.
[ 3.635396] devtmpfs: mounted
[ 3.638559] Freeing init memory: 168K
[ 3.976443] systemd[1]: systemd 216 running in system mode. (+PAM -AUDIT -SELINUX -IMA -APPARMOR +SMACK -SYSVINIT +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID -ELFUTILS +KMOD -IDN )
[ 3.994347] systemd[1]: Detected architecture 'arm'.
[ 4.041432] systemd[1]: Set hostname to <alarm>.
[ 4.668875] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory.
[ 4.684306] systemd[1]: Found ordering cycle on basic.target/start
[ 4.690498] systemd[1]: Found dependency on timers.target/start
[ 4.696466] systemd[1]: Found dependency on fake-hwclock-save.timer/start
[ 4.703278] systemd[1]: Found dependency on fake-hwclock.service/start
[ 4.709809] systemd[1]: Found dependency on basic.target/start
[ 4.715667] systemd[1]: Breaking ordering cycle by deleting job timers.target/start
[ 4.723347] systemd[1]: Job timers.target/start deleted to break ordering cycle starting with basic.target/start
[ 4.756455] systemd[1]: Expecting device dev-ttyS0.device...
[ 4.787018] systemd[1]: Starting Forward Password Requests to Wall Directory Watch.
[ 4.795118] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 4.802857] systemd[1]: Expecting device sys-subsystem-net-devices-eth0.device...
[ 4.832025] systemd[1]: Starting Remote File Systems.
[ 4.851962] systemd[1]: Reached target Remote File Systems.
[ 4.857768] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point.
[ 4.891996] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[ 4.901578] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch.
[ 4.909870] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[ 4.917911] systemd[1]: Starting Paths.
[ 4.941984] systemd[1]: Reached target Paths.
[ 4.946443] systemd[1]: Starting Encrypted Volumes.
[ 4.971970] systemd[1]: Reached target Encrypted Volumes.
[ 4.977465] systemd[1]: Starting Swap.
[ 5.001965] systemd[1]: Reached target Swap.
[ 5.006337] systemd[1]: Starting Root Slice.
[ 5.052003] systemd[1]: Created slice Root Slice.
[ 5.056858] systemd[1]: Starting Delayed Shutdown Socket.
[ 5.086974] systemd[1]: Listening on Delayed Shutdown Socket.
[ 5.092869] systemd[1]: Starting /dev/initctl Compatibility Named Pipe.
[ 5.121980] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[ 5.129048] systemd[1]: Starting Device-mapper event daemon FIFOs.
[ 5.151976] systemd[1]: Listening on Device-mapper event daemon FIFOs.
[ 5.158604] systemd[1]: Starting Journal Socket (/dev/log).
[ 5.181967] systemd[1]: Listening on Journal Socket (/dev/log).
[ 5.188031] systemd[1]: Starting udev Control Socket.
[ 5.211966] systemd[1]: Listening on udev Control Socket.
[ 5.217503] systemd[1]: Starting udev Kernel Socket.
[ 5.241986] systemd[1]: Listening on udev Kernel Socket.
[ 5.247407] systemd[1]: Starting LVM2 metadata daemon socket.
[ 5.271965] systemd[1]: Listening on LVM2 metadata daemon socket.
[ 5.278166] systemd[1]: Starting User and Session Slice.
[ 5.301991] systemd[1]: Created slice User and Session Slice.
[ 5.307901] systemd[1]: Starting Journal Socket.
[ 5.331995] systemd[1]: Listening on Journal Socket.
[ 5.337188] systemd[1]: Starting System Slice.
[ 5.361988] systemd[1]: Created slice System Slice.
[ 5.367062] systemd[1]: Starting Remount Root and Kernel File Systems...
[ 5.394654] systemd[1]: Starting Setup Virtual Console...
[ 5.448900] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[ 5.491279] systemd[1]: Started Set Up Additional Binary Formats.
[ 5.498034] systemd[1]: Mounted Debug File System.
[ 5.503492] systemd[1]: Starting udev Coldplug all Devices...
[ 5.534908] systemd[1]: Mounted Huge Pages File System.
[ 5.546211] systemd[1]: Started Load Kernel Modules.
[ 5.551366] systemd[1]: Starting Apply Kernel Variables...
[ 5.575419] systemd[1]: Mounted Configuration File System.
[ 5.587718] systemd[1]: Mounting FUSE Control File System...
[ 5.614721] systemd[1]: Mounting POSIX Message Queue File System...
[ 5.642314] systemd[1]: Starting system-netctl\x2difplugd.slice.
[ 5.661239] systemd[1]: Created slice system-netctl\x2difplugd.slice.
[ 5.668255] systemd[1]: Starting system-getty.slice.
[ 5.692010] systemd[1]: Created slice system-getty.slice.
[ 5.697569] systemd[1]: Starting system-serial\x2dgetty.slice.
[ 5.721989] systemd[1]: Created slice system-serial\x2dgetty.slice.
[ 5.728408] systemd[1]: Starting Journal Service...
[ 5.772068] systemd[1]: Started Journal Service.
[ 6.223538] systemd-udevd[76]: starting version 216
[ 7.217740] systemd-journald[71]: Received request to flush runtime journal from PID 1
[ 11.792087] sunxi_emac sunxi_emac.0: eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
')

[WarheadsSE]

I should only be necessary to load the appropriate drivers and have a getty started on it. This is not done currently by our default config (obviously)

[conchyliferous]

Thank you very much for the answer.

How can i determine what driver to load? I probably can find out how to work with getty, but if you could give me some more hints on that I would be one happy man.

Have a nice day!