Installing Dreamplug with kirkwood-latest

[ineiti]

Hi,

I'm trying to get the latest kirkwood-archlinux-image from http://archlinuxarm.org/platforms/armv5/sheevaplug to run, but so far I have no luck. The kernel boots, but the root-filesystem is not found, neither as mmcblk, nor sd*, nor an external harddisk. I tried the image from mid-may, which reports as Linux-3.14.2-1 kernel.

Before I report a bug and get flamed, I'd like to know whether Dreamplug is a supported platform or not? I thought it's a kirkwood, but perhaps I'm wrong...

Thanks

[ineiti]

I just re-installed with an old ArchLinux-kirkwood-latest image from December 2013, which worked fine (besides the startup-problems I already reported in another post). So I'm trying to look whether the kernel is missing some configuration-options for the Dreamplug. Somebody got any idea or pointer?

[kmihelich]

It's not officially supported at the moment, but it should run fine off of our latest kirkwood kernels since it is a mainlined device. We'll make it official once we get everything built up, tested, and instructions written.

[ineiti]

Thanks - I'm working on it, as the standard kernel seems to fail (see previous message). I'm trying to build from a config found at "xilka" - there are some things built-in there that are omitted in the archlinuxarm-kernel. I hope that's what stops the kernel from mounting my root-filesystem.

When re-building the 3.15-4 kernel, I get some errors when applying the patches (files already exist) - shall I open a bug report?

[kmihelich]

You probably just need to delete the src directory before doing a full build again. Patches will fail when you try to apply them to already patched source.

[ineiti]

Now I tried both linux-kirkwood and linux-kirkwood-dt and two self-compiled kernels where I started with a 3.12.4-config from Archlinux, but nothing worked. Besides good ol' 3.12.4 kerne that boots from internal SD-card and external harddisk without any probleml. All stop more or less with

$this->bbcode_second_pass_code('', '[ 18.556135] sdhci: Secure Digital Host Controller Interface driver
[ 18.562337] sdhci: Copyright(c) Pierre Ossman
[ 18.566791] mvsdio mvsdio: no pins associated
[ 18.603603] mvsdio mvsdio: lacking card detect (fall back to polling)
[ 18.610135] sdhci-pltfm: SDHCI platform and OF driver helper
[ 18.619503] ledtrig-cpu: registered to indicate activity on CPUs
[ 18.625755] usbcore: registered new interface driver r8712u
[ 18.631517] gre: GRE over IPv4 demultiplexor driver
[ 18.636473] TCP: cubic registered
[ 18.639819] NET: Registered protocol family 17
[ 18.644423] Key type dns_resolver registered
[ 18.649437] registered taskstats version 1
[ 18.654760] console [netcon0] enabled
[ 18.658471] netconsole: network logging started
[ 18.663130] rtc-mv rtc-mv: setting system clock to 2013-01-02 02:42:37 UTC (1357094557)
[ 18.672520] VFS: Cannot open root device "sdc5" or unknown-block(0,0): error -6
[ 18.679971] Please append a correct "root=" boot option; here are the available partitions:
[ 18.688427] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 18.696735] CPU: 0 PID: 1 Comm: swapper Not tainted 3.15.1-1-ARCH #1
[ 18.703139] [<c000ee80>] (unwind_backtrace) from [<c000c418>] (show_stack+0x10/0x14)
[ 18.710926] [<c000c418>] (show_stack) from [<c0538f24>] (panic+0x8c/0x1ec)
[ 18.717837] [<c0538f24>] (panic) from [<c071afe8>] (mount_block_root+0x218/0x2c0)
[ 18.725358] [<c071afe8>] (mount_block_root) from [<c071b354>] (prepare_namespace+0x160/0x1c0)
[ 18.733919] [<c071b354>] (prepare_namespace) from [<c071ac7c>] (kernel_init_freeable+0x1f8/0x240)
[ 18.742832] [<c071ac7c>] (kernel_init_freeable) from [<c05376c0>] (kernel_init+0x8/0xec)
[ 18.750958] [<c05376c0>] (kernel_init) from [<c00094f0>] (ret_from_fork+0x14/0x24)
[ 18.758562] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
')

I have a 4GB internal SD-card and a 1TB harddisk on the USB-port. One of the kernels I compiled showed at least the mtdblock-devices as "available partitions", but neither mmcblk0, sda or sdc (the latter is the usual device for my external harddisk under 3.12.4)...

Any pointers / hints as what I could try next?

[ineiti]

Anyone? I'm trying to feel young by recompiling the kernel, but it doesn't help. Does anyone have a link to an updated u-boot?

[moonman]

Could you show a full dmesg from a working kernel? then the one from linux-kirkwood (not dt).
For -dt to work you need a newer U-Boot with fdt support or you need to manually compile kernel, append dtb to it and make uImage.

Some useful links: http://blog.langfinger.org/?p=266 just for compiling uBoot, do NOT use the uboot environment provided as it will not work with arch.
There is also an older guide here on the forum: viewtopic.php?f=53&t=5062 Beware that the linux-kirkwood-dt comes with a zImage, not a uImage.
http://wiki.gentoo.org/wiki/DreamPlug#M ... evice_tree

And yes, the support for Dreamplug is in the linux-kirkwood kernel: https://github.com/archlinuxarm/PKGBUIL ... atch#L1284

[ineiti]

Thanks for the reply. The u-boot is the u-boot from Debian, october 2013.

I used the following lines to build the "-dt"-kernel:

$this->bbcode_second_pass_code('', '
cat zImage kirkwood-dreamplug.dtb > zImage_w_dtb
mkimage -A arm -O linux -T kernel -C none -a 0x8000 -e 0x8000 -n "linux-dreamplug-3.15-4" -d zImage_w_dtb uImage.dtb
')

And then I booted the uImage.dtb-file, of course.

Here is a working 3.12.6-2 kernel:

$this->bbcode_second_pass_code('', '
## Booting kernel from Legacy Image at 00800000 ...
Image Name: Linux-3.12.6-2-ARCH
Created: 2013-12-25 4:09:30 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3820088 Bytes = 3.6 MiB
Load Address: 00008000
Entry Point: 00008000
Verifying Checksum ... OK
Loading Kernel Image ... OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 3.12.6-2-ARCH (nobody@root-armv5-copy) (gcc version 4.7.2 (GCC) ) #1 PREEMPT Tue Dec 24 21:09:18 MST 2013
[ 0.000000] CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=00053977
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache
[ 0.000000] Machine: Marvell DreamPlug Reference Board
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
[ 0.000000] Kernel command line: console=ttyS0,115200 elevator=noop root=/dev/sdc5
[ 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] Memory: 511380K/524288K available (5302K kernel code, 319K rwdata, 1628K rodata, 255K init, 823K bss, 12908K reserved)
[ 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] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc06ccb1c (6931 kB)
[ 0.000000] .init : 0xc06cd000 - 0xc070cf24 ( 256 kB)
[ 0.000000] .data : 0xc070e000 - 0xc075dedc ( 320 kB)
[ 0.000000] .bss : 0xc075dedc - 0xc082be6c ( 824 kB)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] NR_IRQS:114
[ 0.000000] sched_clock: 32 bits at 200MHz, resolution 5ns, wraps every 21474ms
[ 0.000000] Console: colour dummy device 80x30
[ 15.080811] Calibrating delay loop... 1191.11 BogoMIPS (lpj=5955584)
[ 15.170657] pid_max: default: 32768 minimum: 301
[ 15.170767] Security Framework initialized
[ 15.170793] AppArmor: AppArmor disabled by boot time parameter
[ 15.170858] Mount-cache hash table entries: 512
[ 15.171437] Initializing cgroup subsys devices
[ 15.171458] Initializing cgroup subsys freezer
[ 15.171471] Initializing cgroup subsys net_cls
[ 15.171481] Initializing cgroup subsys blkio
[ 15.171490] Initializing cgroup subsys bfqio
[ 15.171499] Initializing cgroup subsys perf_event
[ 15.171595] CPU: Testing write buffer coherency: ok
[ 15.171947] Setting up static identity map for 0xc050a3d8 - 0xc050a430
[ 15.173435] devtmpfs: initialized
[ 15.176044] pinctrl core: initialized pinctrl subsystem
[ 15.176318] NET: Registered protocol family 16
[ 15.176709] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 15.177276] cpuidle: using governor ladder
[ 15.177293] cpuidle: using governor menu
[ 15.177376] Kirkwood: MV88F6281-A1, TCLK=200000000.
[ 15.177395] Feroceon L2: Enabling L2
[ 15.177432] Feroceon L2: Cache support initialised.
[ 15.183623] bio: create slab <bio-0> at 0
[ 15.184087] vgaarb: loaded
[ 15.184363] SCSI subsystem initialized
[ 15.184692] usbcore: registered new interface driver usbfs
[ 15.184745] usbcore: registered new interface driver hub
[ 15.184838] usbcore: registered new device driver usb
[ 15.184964] pps_core: LinuxPPS API ver. 1 registered
[ 15.184973] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 15.184998] PTP clock support registered
[ 15.185617] Switched to clocksource orion_clocksource
[ 15.199486] FS-Cache: Loaded
[ 15.208871] NET: Registered protocol family 2
[ 15.209453] TCP established hash table entries: 4096 (order: 3, 32768 bytes)
[ 15.209552] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[ 15.209604] TCP: Hash tables configured (established 4096 bind 4096)
[ 15.209665] TCP: reno registered
[ 15.209678] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 15.209699] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 15.209914] NET: Registered protocol family 1
[ 15.211091] audit: initializing netlink socket (disabled)
[ 15.211128] type=2000 audit(0.120:1): initialized
[ 15.309514] VFS: Disk quotas dquot_6.5.2
[ 15.309730] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 15.311442] jffs2: version 2.2. (NAND) ?? 2001-2006 Red Hat, Inc.
[ 15.312555] aufs 3.12-20131223
[ 15.312578] msgmni has been set to 998
[ 15.314112] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[ 15.314125] io scheduler noop registered (default)
[ 15.314132] io scheduler deadline registered
[ 15.314427] io scheduler cfq registered
[ 15.314458] io scheduler bfq registered
[ 15.314578] mv_xor mv_xor.0: Marvell shared XOR driver
[ 15.345748] mv_xor mv_xor.0: Marvell XOR: ( xor cpy )
[ 15.385682] mv_xor mv_xor.0: Marvell XOR: ( xor cpy )
[ 15.385846] mv_xor mv_xor.1: Marvell shared XOR driver
[ 15.425688] mv_xor mv_xor.1: Marvell XOR: ( xor cpy )
[ 15.465686] mv_xor mv_xor.1: Marvell XOR: ( xor cpy )
[ 15.469664] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[ 15.490434] serial8250.0: ttyS0 at MMIO 0xf1012000 (irq = 33, base_baud = 12500000) is a 16550A
[ 15.977603] console [ttyS0] enabled
[ 15.987372] brd: module loaded
[ 15.993598] loop: module loaded
[ 15.997062] sata_mv sata_mv.0: cannot get optional clkdev
[ 16.002542] sata_mv sata_mv.0: slots 32 ports 1
[ 16.008425] scsi0 : sata_mv
[ 16.011461] ata1: SATA max UDMA/133 irq 21
[ 16.016650] m25p80 spi0.0: mx25l1606e (2048 Kbytes)
[ 16.021845] Creating 2 MTD partitions on "spi_flash":
[ 16.026967] 0x000000000000-0x000000080000 : "u-boot"
[ 16.032277] 0x000000100000-0x000000110000 : "u-boot env"
[ 16.044637] libphy: orion_mdio_bus: probed
[ 16.048872] mv643xx_eth: MV-643xx 10/100/1000 ethernet driver version 1.4
[ 16.365643] ata1: SATA link down (SStatus 0 SControl F300)
[ 17.062206] mv643xx_eth_port mv643xx_eth_port.0 eth0: port 0 with MAC address f0:ad:4e:00:b2:46
[ 18.071996] mv643xx_eth_port mv643xx_eth_port.1 eth1: port 0 with MAC address f0:ad:4e:00:b2:47
[ 18.080847] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 18.087420] ehci-pci: EHCI PCI platform driver
[ 18.091931] ehci-orion: EHCI orion driver
[ 18.096027] orion-ehci orion-ehci.0: EHCI Host Controller
[ 18.101470] orion-ehci orion-ehci.0: new USB bus registered, assigned bus number 1
[ 18.109199] orion-ehci orion-ehci.0: irq 19, io mem 0xf1050000
[ 18.125651] orion-ehci orion-ehci.0: USB 2.0 started, EHCI 1.00
[ 18.132310] hub 1-0:1.0: USB hub found
[ 18.136135] hub 1-0:1.0: 1 port detected
[ 18.140591] usbcore: registered new interface driver usb-storage
[ 18.146986] mousedev: PS/2 mouse device common for all mice
[ 18.152900] rtc-mv rtc-mv: rtc core: registered rtc-mv as rtc0
[ 18.159157] orion_wdt: Initial timeout 21 sec
[ 18.163764] sdhci: Secure Digital Host Controller Interface driver
[ 18.170013] sdhci: Copyright(c) Pierre Ossman
[ 18.174450] mvsdio mvsdio: no pins associated
[ 18.215647] mvsdio mvsdio: lacking card detect (fall back to polling)
[ 18.222162] sdhci-pltfm: SDHCI platform and OF driver helper
[ 18.231341] ledtrig-cpu: registered to indicate activity on CPUs
[ 18.237553] usbcore: registered new interface driver r8712u
[ 18.243359] gre: GRE over IPv4 demultiplexor driver
[ 18.248415] TCP: cubic registered
[ 18.251771] NET: Registered protocol family 17
[ 18.256351] Key type dns_resolver registered
[ 18.261198] registered taskstats version 1
[ 18.282548] mmc0: new high speed SDIO card at address 0001
[ 18.455660] usb 1-1: new high-speed USB device number 2 using orion-ehci
[ 18.626859] hub 1-1:1.0: USB hub found
[ 18.635642] hub 1-1:1.0: 4 ports detected
[ 18.925843] usb 1-1.1: new high-speed USB device number 3 using orion-ehci
[ 19.059003] usb-storage 1-1.1:1.0: USB Mass Storage device detected
[ 19.075753] scsi1 : usb-storage 1-1.1:1.0
[ 19.155843] usb 1-1.2: new high-speed USB device number 4 using orion-ehci
[ 19.287833] usb-storage 1-1.2:1.0: USB Mass Storage device detected
[ 19.305728] scsi2 : usb-storage 1-1.2:1.0
[ 19.385856] usb 1-1.4: new full-speed USB device number 5 using orion-ehci
[ 20.096810] scsi 1:0:0:0: Direct-Access Generic STORAGE DEVICE 9910 PQ: 0 ANSI: 0
[ 20.106616] sd 1:0:0:0: [sda] 7626752 512-byte logical blocks: (3.90 GB/3.63 GiB)
[ 20.125645] sd 1:0:0:0: [sda] Write Protect is off
[ 20.130880] sd 1:0:0:0: Attached scsi generic sg0 type 0
[ 20.136363] sd 1:0:0:0: [sda] No Caching mode page found
[ 20.141715] sd 1:0:0:0: [sda] Assuming drive cache: write through
[ 20.148537] scsi 1:0:0:1: Direct-Access Generic STORAGE DEVICE 9910 PQ: 0 ANSI: 0
[ 20.166344] sd 1:0:0:1: Attached scsi generic sg1 type 0
[ 20.172995] sd 1:0:0:1: [sdb] Attached SCSI removable disk
[ 20.189859] sd 1:0:0:0: [sda] No Caching mode page found
[ 20.195215] sd 1:0:0:0: [sda] Assuming drive cache: write through
[ 20.217325] sda: sda1 sda2
[ 20.228496] sd 1:0:0:0: [sda] No Caching mode page found
[ 20.233843] sd 1:0:0:0: [sda] Assuming drive cache: write through
[ 20.255667] sd 1:0:0:0: [sda] Attached SCSI removable disk
[ 20.306425] scsi 2:0:0:0: Direct-Access WD My Passport 0748 1022 PQ: 0 ANSI: 6
[ 20.315651] sd 2:0:0:0: [sdc] 3906963456 512-byte logical blocks: (2.00 TB/1.81 TiB)
[ 20.335647] sd 2:0:0:0: [sdc] Write Protect is off
[ 20.340909] sd 2:0:0:0: Attached scsi generic sg2 type 0
[ 20.346490] sd 2:0:0:0: [sdc] No Caching mode page found
[ 20.351841] sd 2:0:0:0: [sdc] Assuming drive cache: write through
[ 20.358522] scsi 2:0:0:1: Enclosure WD SES Device 1022 PQ: 0 ANSI: 6
[ 20.376091] scsi 2:0:0:1: Attached scsi generic sg3 type 13
[ 20.388114] sd 2:0:0:0: [sdc] No Caching mode page found
[ 20.393464] sd 2:0:0:0: [sdc] Assuming drive cache: write through
[ 21.782971] UKSM: relative memcmp_cost = 2570 hash=2419560823 cmp_ret=0.
[ 21.796904] console [netcon0] enabled
[ 21.800586] netconsole: network logging started
[ 21.805211] rtc-mv rtc-mv: setting system clock to 2014-06-18 23:27:24 UTC (1403134044)
[ 24.855985] sdc: sdc1 sdc2 sdc3 sdc4 < sdc5 sdc6 sdc7 sdc8 sdc9 >
[ 24.866108] sd 2:0:0:0: [sdc] No Caching mode page found
[ 24.871463] sd 2:0:0:0: [sdc] Assuming drive cache: write through
[ 24.877633] sd 2:0:0:0: [sdc] Attached SCSI disk
[ 24.894991] EXT3-fs (sdc5): error: couldn't mount because of unsupported optional features (240)
[ 24.904732] EXT2-fs (sdc5): error: couldn't mount because of unsupported optional features (244)
[ 25.098975] EXT4-fs (sdc5): recovery complete
[ 25.103993] EXT4-fs (sdc5): mounted filesystem with ordered data mode. Opts: (null)
[ 25.111744] VFS: Mounted root (ext4 filesystem) on device 8:37.
[ 25.156396] devtmpfs: mounted
[ 25.160157] Freeing unused kernel memory: 252K (c06cd000 - c070c000)
[ 25.775893] systemd[1]: systemd 208 running in system mode. (+PAM -LIBWRAP -AUDIT -SELINUX -IMA -SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ)

Welcome to Arch Linux ARM!

[ 26.015383] systemd[1]: Inserted module 'autofs4'
[ 26.075181] NET: Registered protocol family 10
[ 26.081079] systemd[1]: Inserted module 'ipv6'
[ 26.108488] systemd[1]: Set hostname to <alarm>.
[ 26.721540] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory.
[ 26.737808] systemd[1]: Starting Forward Password Requests to Wall Directory Watch.
[ 26.745922] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 26.753619] systemd[1]: Expecting device dev-ttyS0.device...
Expecting device dev-ttyS0.device...
[ 26.775784] systemd[1]: Expecting device sys-subsystem-net-devices-eth1.device...
Expecting device sys-subsystem-net-devices-eth1.device...
[ 26.805765] systemd[1]: Starting Remote File Systems.
[ OK ] Reached target Remote File Systems.
[ 26.825748] systemd[1]: Reached target Remote File Systems.
[ 26.831429] systemd[1]: Expecting device sys-subsystem-net-devices-eth0.device...
Expecting device sys-subsystem-net-devices-eth0.device...
[ 26.855759] systemd[1]: Expecting device sys-subsystem-net-devices-wlan0.device...
Expecting device sys-subsystem-net-devices-wlan0.device...
[ 26.885764] systemd[1]: Starting /dev/initctl Compatibility Named Pipe.
[ OK ] Listening on /dev/initctl Compatibility Named Pipe.
[ 26.915752] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[ 26.922822] systemd[1]: Starting Delayed Shutdown Socket.
[ OK ] Listening on Delayed Shutdown Socket.
[ 26.945754] systemd[1]: Listening on Delayed Shutdown Socket.
[ 26.951607] systemd[1]: Starting Device-mapper event daemon FIFOs.
[ OK ] Listening on Device-mapper event daemon FIFOs.
[ 26.975753] systemd[1]: Listening on Device-mapper event daemon FIFOs.
[ 26.982386] systemd[1]: Starting LVM2 metadata daemon socket.
[ OK ] Listening on LVM2 metadata daemon socket.
[ 27.005785] systemd[1]: Listening on LVM2 metadata daemon socket.
[ 27.011993] systemd[1]: Starting Encrypted Volumes.
[ OK ] Reached target Encrypted Volumes.
[ 27.035754] systemd[1]: Reached target Encrypted Volumes.
[ 27.041290] systemd[1]: Starting Journal Socket.
[ OK ] Listening on Journal Socket.
[ 27.066274] systemd[1]: Listening on Journal Socket.
[ 27.071376] systemd[1]: Starting Journal Service...
Starting Journal Service...
[ OK ] Started Journal Service.
[ 27.115833] systemd[1]: Started Journal Service.
[ OK ] Reached target Paths.
Starting Apply Kernel Variables...
[ OK ] Listening on udev Kernel Socket.
[ OK ] Listening on udev Control Socket.
[ 27.275271] systemd-journald[61]: Vacuuming done, freed 0 bytes
Starting udev Coldplug all Devices...
Starting Create list of required static device nodes...rrent kernel...
Mounting POSIX Message Queue File System...
[ OK ] Set up automount Arbitrary Executable File Formats F...utomount Point.
Mounting Debug File System...
Starting Setup Virtual Console...
[ OK ] Reached target Swap.
Starting Remount Root and Kernel File Systems...
Mounting Temporary Directory...
Expecting device dev-sdc1.device...
[ 27.699245] EXT4-fs (sdc5): re-mounted. Opts: (null)
[ OK ] Created slice Root Slice.
[ OK ] Created slice User and Session Slice.
[ OK ] Created slice System Slice.
[ OK ] Created slice system-netctl\x2difplugd.slice.
[ OK ] Created slice system-netctl.slice.
[ OK ] Created slice system-getty.slice.
[ OK ] Created slice system-serial\x2dgetty.slice.
[ OK ] Reached target Slices.
[ OK ] Started Apply Kernel Variables.
[ OK ] Mounted POSIX Message Queue File System.
[ OK ] Mounted Debug File System.
[ OK ] Started Setup Virtual Console.
[ OK ] Started Remount Root and Kernel File Systems.
[ OK ] Mounted Temporary Directory.
[ OK ] Started udev Coldplug all Devices.
[ OK ] Started Create list of required static device nodes ...current kernel.
Starting Create static device nodes in /dev...
Starting Load/Save Random Seed...
[ OK ] Started Load/Save Random Seed.
[ OK ] Started Create static device nodes in /dev.
Starting udev Kernel Device Manager...
[ OK ] Reached target Local File Systems (Pre).
[ 28.330632] systemd-udevd[88]: starting version 208
[ OK ] Started udev Kernel Device Manager.
[ OK ] Found device /dev/ttyS0.
[ OK ] Found device /sys/subsystem/net/devices/eth0.
[ OK ] Found device /sys/subsystem/net/devices/eth1.
[ 28.865007] Bluetooth: Core ver 2.16
[ 28.992515] NET: Registered protocol family 31
[ 29.023160] Bluetooth: HCI device and connection manager initialized
[ 29.041221] usbcore: registered new interface driver usbhid
[ 29.073506] Bluetooth: HCI socket layer initialized
[ 29.082823] ses 2:0:0:1: Attached Enclosure device
[ 29.090600] usbhid: USB HID core driver
[ 29.126038] Bluetooth: L2CAP socket layer initialized
[ 29.146210] cfg80211: Calling CRDA to update world regulatory domain
[ 29.177921] Bluetooth: SCO socket layer initialized
[ 29.267202] libertas_sdio: Libertas SDIO driver
[ 29.271756] libertas_sdio: Copyright Pierre Ossman
[ 29.282628] Bluetooth: vendor=0x2df, device=0x9105, class=255, fn=2
[ 29.361843] usbcore: registered new interface driver snd-usb-audio
[ 29.718093] input: C-Media USB Headphone Set as /devices/platform/orion-ehci.0/usb1/1-1/1-1.4/1-1.4:1.3/input/input0
[ 29.734394] hid-generic 0003:0D8C:000C.0001: input: USB HID v1.00 Device [C-Media USB Headphone Set ] on usb-orion-ehci.0-1.4/input3
[ OK ] Reached target Sound Card.
[ 30.007614] libertas_sdio mmc0:0001:1 (unregistered net_device): 00:24:23:45:0d:76, fw 10.38.1p25, cap 0x00000303
[ 30.032965] libertas_sdio mmc0:0001:1 wlan0: Marvell WLAN 802.11 adapter
[ OK ] Reached target Bluetooth.
[ OK ] Found device /sys/subsystem/net/devices/wlan0.
[ OK ] Found device My_Passport_0748.
Mounting /boot.fat...
[ 31.226741] FAT-fs (sdc1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ OK ] Mounted /boot.fat.
[ OK ] Reached target Local File Systems.
Starting Recreate Volatile Files and Directories...
Starting Trigger Flushing of Journal to Persistent Storage...
[ OK ] Started Recreate Volatile Files and Directories.
Starting Update UTMP about System Reboot/Shutdown...
[ 31.463060] systemd-journald[61]: Received request to flush runtime journal from PID 1
[ OK ] Started Trigger Flushing of Journal to Persistent Storage.
[ OK ] Started Update UTMP about System Reboot/Shutdown.
[ OK ] Reached target System Initialization.
[ OK ] Listening on D-Bus System Message Bus Socket.
[ OK ] Reached target Sockets.
[ OK ] Reached target Timers.
[ OK ] Reached target Basic System.
Starting A simple open wireless connection...
Starting Packet Filtering Framework...
Starting Entropy Harvesting Daemon...
Starting Automatic wired network connection using netctl profiles...
[ OK ] Started Automatic wired network connection using netctl profiles.
Starting A basic static ethernet connection...
Starting Login Service...
Starting D-Bus System Message Bus...
[ OK ] Started D-Bus System Message Bus.
Starting Permit User Sessions...
[ 32.448215] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ OK ] Started Permit User Sessions.
Starting Getty on tty1...
[ OK ] Started Getty on tty1.
Starting Serial Getty on ttyS0...
[ OK ] Started Serial Getty on ttyS0.
[ OK ] Reached target Login Prompts.
[ 32.782493] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 32.915725] nf_conntrack version 0.5.0 (7994 buckets, 31976 max)
[ OK ] Started Entropy Harvesting Daemon.
[ OK ] Started Login Service.
[ OK ] Started Packet Filtering Framework.
[ 33.400692] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[ 33.588319] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 34.801078] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ OK ] Started A simple open wireless connection.
')

And the one from linux-kirkwood-3.15.1-1-arm (non-dt):

$this->bbcode_second_pass_code('', '
## Booting kernel from Legacy Image at 00800000 ...
Image Name: Linux-3.15.1-1-ARCH
Created: 2014-06-17 3:27:50 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3977672 Bytes = 3.8 MiB
Load Address: 00008000
Entry Point: 00008000
Verifying Checksum ... OK
Loading Kernel Image ... OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 3.15.1-1-ARCH (nobody@root-armv5-copy) (gcc version 4.8.2 20131219 (prerelease) (GCC) ) #1 PREEMPT Mon Jun 16 21:27:37 MDT 2014
[ 0.000000] CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=00053977
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache
[ 0.000000] Machine: Marvell DreamPlug Reference Board
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
[ 0.000000] Kernel command line: console=ttyS0,115200 elevator=noop root=/dev/sdc5
[ 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] Memory: 511044K/524288K available (5543K kernel code, 340K rwdata, 1696K rodata, 260K init, 833K bss, 13244K reserved)
[ 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] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc0719f14 (7240 kB)
[ 0.000000] .init : 0xc071a000 - 0xc075b3e4 ( 261 kB)
[ 0.000000] .data : 0xc075c000 - 0xc07b13dc ( 341 kB)
[ 0.000000] .bss : 0xc07b13dc - 0xc088192c ( 834 kB)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] NR_IRQS:114
[ 0.000011] sched_clock: 32 bits at 200MHz, resolution 5ns, wraps every 21474836475ns
[ 21.013231] Console: colour dummy device 80x30
[ 21.013255] Calibrating delay loop... 1191.11 BogoMIPS (lpj=5955584)
[ 21.103133] pid_max: default: 32768 minimum: 301
[ 21.103218] Security Framework initialized
[ 21.103243] AppArmor: AppArmor disabled by boot time parameter
[ 21.103301] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 21.103319] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 21.103942] Initializing cgroup subsys devices
[ 21.103966] Initializing cgroup subsys freezer
[ 21.103979] Initializing cgroup subsys net_cls
[ 21.103991] Initializing cgroup subsys blkio
[ 21.104000] Initializing cgroup subsys bfqio
[ 21.104010] Initializing cgroup subsys perf_event
[ 21.104023] Initializing cgroup subsys net_prio
[ 21.104098] CPU: Testing write buffer coherency: ok
[ 21.104458] Setting up static identity map for 0x5463d8 - 0x546430
[ 21.106173] devtmpfs: initialized
[ 21.109325] pinctrl core: initialized pinctrl subsystem
[ 21.109651] NET: Registered protocol family 16
[ 21.110042] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 21.110984] cpuidle: using governor ladder
[ 21.111003] cpuidle: using governor menu
[ 21.111086] Kirkwood: MV88F6281-A1, TCLK=200000000.
[ 21.111107] Feroceon L2: Enabling L2
[ 21.111145] Feroceon L2: Cache support initialised.
[ 21.121656] vgaarb: loaded
[ 21.121961] SCSI subsystem initialized
[ 21.122430] usbcore: registered new interface driver usbfs
[ 21.122506] usbcore: registered new interface driver hub
[ 21.122618] usbcore: registered new device driver usb
[ 21.122769] pps_core: LinuxPPS API ver. 1 registered
[ 21.122779] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 21.122807] PTP clock support registered
[ 21.123668] Switched to clocksource orion_clocksource
[ 21.143045] FS-Cache: Loaded
[ 21.155832] NET: Registered protocol family 2
[ 21.156417] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 21.156476] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[ 21.156527] TCP: Hash tables configured (established 4096 bind 4096)
[ 21.156590] TCP: reno registered
[ 21.156603] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 21.156624] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 21.156800] NET: Registered protocol family 1
[ 21.158127] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 21.158177] audit: initializing netlink subsys (disabled)
[ 21.158240] audit: type=2000 audit(0.140:1): initialized
[ 21.267503] VFS: Disk quotas dquot_6.5.2
[ 21.267748] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 21.269959] jffs2: version 2.2. (NAND) ?? 2001-2006 Red Hat, Inc.
[ 21.271732] aufs 3.15-20140616
[ 21.271757] msgmni has been set to 998
[ 21.273516] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[ 21.273529] io scheduler noop registered (default)
[ 21.273537] io scheduler deadline registered
[ 21.274018] io scheduler cfq registered
[ 21.274056] io scheduler bfq registered
[ 21.274063] BFQ I/O-scheduler version: v7r4
[ 21.274240] mv_xor mv_xor.0: Marvell shared XOR driver
[ 21.313747] mv_xor mv_xor.0: Marvell XOR: ( xor cpy )
[ 21.353741] mv_xor mv_xor.0: Marvell XOR: ( xor cpy )
[ 21.353940] mv_xor mv_xor.1: Marvell shared XOR driver
[ 21.393747] mv_xor mv_xor.1: Marvell XOR: ( xor cpy )
[ 21.433745] mv_xor mv_xor.1: Marvell XOR: ( xor cpy )
[ 21.439172] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[ 21.440204] console [ttyS0] disabled
[ 21.460254] serial8250.0: ttyS0 at MMIO 0xf1012000 (irq = 33, base_baud = 12500000) is a 16550A
[ 21.972509] console [ttyS0] enabled
[ 21.985218] brd: module loaded
[ 21.992835] loop: module loaded
[ 21.996363] sata_mv sata_mv.0: cannot get optional clkdev
[ 22.001853] sata_mv sata_mv.0: slots 32 ports 1
[ 22.008079] scsi0 : sata_mv
[ 22.011454] ata1: SATA max UDMA/133 irq 21
[ 22.016944] m25p80 spi0.0: mx25l1606e (2048 Kbytes)
[ 22.022160] Creating 2 MTD partitions on "spi_flash":
[ 22.027283] 0x000000000000-0x000000080000 : "u-boot"
[ 22.032718] 0x000000100000-0x000000110000 : "u-boot env"
[ 22.045550] libphy: orion_mdio_bus: probed
[ 22.049756] mv643xx_eth: MV-643xx 10/100/1000 ethernet driver version 1.4
[ 22.363695] ata1: SATA link down (SStatus 0 SControl F300)
[ 23.140295] mv643xx_eth_port mv643xx_eth_port.0 eth0: port 0 with MAC address f0:ad:4e:00:b2:46
[ 24.224627] mv643xx_eth_port mv643xx_eth_port.1 eth1: port 0 with MAC address f0:ad:4e:00:b2:47
[ 24.233492] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 24.240069] ehci-pci: EHCI PCI platform driver
[ 24.244609] ehci-orion: EHCI orion driver
[ 24.248717] orion-ehci orion-ehci.0: EHCI Host Controller
[ 24.254184] orion-ehci orion-ehci.0: new USB bus registered, assigned bus number 1
[ 24.261897] orion-ehci orion-ehci.0: irq 19, io mem 0xf1050000
[ 24.283700] orion-ehci orion-ehci.0: USB 2.0 started, EHCI 1.00
[ 24.290599] hub 1-0:1.0: USB hub found
[ 24.294424] hub 1-0:1.0: 1 port detected
[ 24.299044] usbcore: registered new interface driver usb-storage
[ 24.305518] mousedev: PS/2 mouse device common for all mice
[ 24.311474] rtc-mv rtc-mv: rtc core: registered rtc-mv as rtc0
[ 24.317469] i2c /dev entries driver
[ 24.321462] orion_wdt: Initial timeout 21 sec
[ 24.326227] sdhci: Secure Digital Host Controller Interface driver
[ 24.332433] sdhci: Copyright(c) Pierre Ossman
[ 24.336887] mvsdio mvsdio: no pins associated
[ 24.373701] mvsdio mvsdio: lacking card detect (fall back to polling)
[ 24.380228] sdhci-pltfm: SDHCI platform and OF driver helper
[ 24.389598] ledtrig-cpu: registered to indicate activity on CPUs
[ 24.395852] usbcore: registered new interface driver r8712u
[ 24.401620] gre: GRE over IPv4 demultiplexor driver
[ 24.406575] TCP: cubic registered
[ 24.409927] NET: Registered protocol family 17
[ 24.414540] Key type dns_resolver registered
[ 24.419556] registered taskstats version 1
[ 24.424905] console [netcon0] enabled
[ 24.428612] netconsole: network logging started
[ 24.433269] rtc-mv rtc-mv: setting system clock to 2014-06-18 23:38:50 UTC (1403134730)
[ 24.442663] VFS: Cannot open root device "sdc5" or unknown-block(0,0): error -6
[ 24.450111] Please append a correct "root=" boot option; here are the available partitions:
[ 24.458567] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 24.466874] CPU: 0 PID: 1 Comm: swapper Not tainted 3.15.1-1-ARCH #1
[ 24.473279] [<c000ee80>] (unwind_backtrace) from [<c000c418>] (show_stack+0x10/0x14)
[ 24.481075] [<c000c418>] (show_stack) from [<c0538f24>] (panic+0x8c/0x1ec)
[ 24.487985] [<c0538f24>] (panic) from [<c071afe8>] (mount_block_root+0x218/0x2c0)
[ 24.495505] [<c071afe8>] (mount_block_root) from [<c071b354>] (prepare_namespace+0x160/0x1c0)
[ 24.504068] [<c071b354>] (prepare_namespace) from [<c071ac7c>] (kernel_init_freeable+0x1f8/0x240)
[ 24.512981] [<c071ac7c>] (kernel_init_freeable) from [<c05376c0>] (kernel_init+0x8/0xec)
[ 24.521108] [<c05376c0>] (kernel_init) from [<c00094f0>] (ret_from_fork+0x14/0x24)
[ 24.528711] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
')

Thank you for looking into this. I'll try to build the u-boot and look whether that changes something.

[ineiti]

I just tried with the u-boot from http://blog.langfinger.org/?p=266 which doesn't work, neither. I took the pre-compiled one. Should I compile it myself?