====== Quick start ======
===== Download Buildroot sources =====
Depends on your needs you can:
* download [[https://buildroot.org/download.html|stable release]] from [[https://buildroot.org/downloads/]],
* clone latest from [[https://git.buildroot.net/buildroot]] repository.
We recommends to use always **the latest stable** release.\\
Below we will use stable release [[https://buildroot.org/downloads/buildroot-2016.11.2.tar.gz|2016.11.2]].
wget https://buildroot.org/downloads/buildroot-2016.11.2.tar.gz
tar xf buildroot-2016.11.2.tar.gz
cd buildroot-2016.11.2
===== Configure buildroot =====
Apply configuration from [[https://git.buildroot.net/buildroot/tree/configs/grinn_liteboard_defconfig|grinn_liteboard_defconfig]] file.
make grinn_liteboard_defconfig
===== Build firmware =====
make all
During the first build [[https://buildroot.org|Buildroot]] will download and compile cross-compiler for [[liteSOM:about|liteSOM]]. This operation will take several minutes (around 30 minutes @ 8 x Intel® Core™ i7-2760QM CPU).
But after first build cross-compiler will be reused and build time will be reduced to the minimal value (in most cases it will take less than 1 minute).
===== Install firmware on SD card =====
sudo dd if=output/images/sdcard.img of=/dev/ bs=4M
sync
Where '''' points to your SD card device.
Some distributions are automatically mounting all hot-plugged disks. In such situation please unmount SD card before ''dd ...'' command.
Make certain that ''of=...'' points to your SD card. In case of mistake (when ''of=...'' points to your system disk) you can damage data on your system disk.
**Method 1**
Insert SD cart to PC and check last lines from ''dmesg'' command output. Name assigned to the detected SD card will be presented as in the following example.
[ 6163.014768] mmc0: new high speed SDHC card at address 1234
[ 6163.024433] mmcblk0: mmc0:1234 SA16G 14.6 GiB
[ 6163.025749] mmcblk0: p1
[ 6163.375207] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
**Method 2**
''lsblk'' command will list all detected block devices where your SD card will be displayed.
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 238.5G 0 disk
├─sda1 8:1 0 28G 0 part /
├─sda2 8:2 0 1K 0 part
├─sda5 8:5 0 9.3G 0 part
└─sda6 8:6 0 201.2G 0 part /home
sr0 11:0 1 1024M 0 rom
mmcblk0 179:0 0 14.7G 0 disk
└─mmcblk0p1 179:1 0 14.7G 0 part /media/foo/804b0b54-f37e-49cb-9299-87759d7b68d4
**Device name**
In both examples SD card was detected as ''mmcblk0'' so valid ''dd ...'' command syntax is
sudo dd if=output/images/sdcard.img of=/dev/mmcblk0 bs=4M
===== Run firmware on liteSOM =====
Insert programmed SD card to the [[litesom:liteboard]] card socket.
Configure [[:litesom:boot switches]] to boot liteSOM from SD card.
Connect your [[litesom:liteboard]] to your PC via USB ↔ micro USB cable.
[[litesom:liteboard]] will be automatically powered-up and on debug console you should see starting Linux, as presented below.
U-Boot SPL 2016.09.01 (Feb 04 2017 - 20:06:45)
Trying to boot from MMC1
U-Boot 2016.09.01 (Feb 04 2017 - 20:06:45 +0100)
CPU: Freescale i.MX6UL rev1.0 528 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 41C
Reset cause: POR
Board: Grinn liteBoard
DRAM: 512 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc0 is current device
Net: FEC [PRIME]
Error: FEC address not set.
Hit any key to stop autoboot: 1 0
switch to partitions #0, OK
mmc0 is current device
reading boot.scr
** Unable to read file boot.scr **
reading zImage
6067112 bytes read in 280 ms (20.7 MiB/s)
Booting from mmc ...
reading imx6ul-liteboard.dtb
21018 bytes read in 19 ms (1.1 MiB/s)
## Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Using Device Tree in place at 83000000, end 83008219
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.8.0 (filug@oxygen) (gcc version 5.4.0 (Buildroot 2016.11.2) ) #1 SMP Sat Feb 4 20:24:00 CET 2017
[ 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: Grinn i.MX6UL liteBoard
[ 0.000000] cma: Reserved 16 MiB at 0x9f000000
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] percpu: Embedded 14 pages/cpu @debcd000 s26024 r8192 d23128 u57344
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
[ 0.000000] Kernel command line: console=ttymxc0,115200 root=/dev/mmcblk0p2 rootwait rw
[ 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: 481192K/524288K available (9216K kernel code, 442K rwdata, 2924K rodata, 1024K init, 8224K bss, 26712K reserved, 16384K cma-reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xe0800000 - 0xff800000 ( 496 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 - 0xc0a00000 (10208 kB)
[ 0.000000] .init : 0xc0d00000 - 0xc0e00000 (1024 kB)
[ 0.000000] .data : 0xc0e00000 - 0xc0e6e900 ( 443 kB)
[ 0.000000] .bss : 0xc0e70000 - 0xc16782fc (8225 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Running RCU self tests
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] RCU lockdep checking is enabled.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=1
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] Switching to timer-based delay loop, resolution 41ns
[ 0.000018] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000062] clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.002512] Console: colour dummy device 80x30
[ 0.002588] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.002613] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.002636] ... MAX_LOCK_DEPTH: 48
[ 0.002655] ... MAX_LOCKDEP_KEYS: 8191
[ 0.002676] ... CLASSHASH_SIZE: 4096
[ 0.002695] ... MAX_LOCKDEP_ENTRIES: 32768
[ 0.002714] ... MAX_LOCKDEP_CHAINS: 65536
[ 0.002735] ... CHAINHASH_SIZE: 32768
[ 0.002754] memory used by lock dependency info: 5167 kB
[ 0.002774] per task-struct memory footprint: 1536 bytes
[ 0.002852] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[ 0.002897] pid_max: default: 32768 minimum: 301
[ 0.003627] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.003666] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.007943] CPU: Testing write buffer coherency: ok
[ 0.009640] /cpus/cpu@0 missing clock-frequency property
[ 0.009692] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.009759] Setting up static identity map for 0x80100000 - 0x80100070
[ 0.017417] Brought up 1 CPUs
[ 0.017462] SMP: Total of 1 processors activated (48.00 BogoMIPS).
[ 0.017485] CPU: All CPU(s) started in SVC mode.
[ 0.022198] devtmpfs: initialized
[ 0.064396] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[ 0.066318] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.068429] pinctrl core: initialized pinctrl subsystem
[ 0.076823] NET: Registered protocol family 16
[ 0.083895] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.088726] cpuidle: using governor menu
[ 0.174504] No ATAGs?
[ 0.174604] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[ 0.174638] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.181852] imx6ul-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
[ 0.265788] mxs-dma 1804000.dma-apbh: initialized
[ 0.273720] vgaarb: loaded
[ 0.275942] SCSI subsystem initialized
[ 0.278980] usbcore: registered new interface driver usbfs
[ 0.279420] usbcore: registered new interface driver hub
[ 0.280001] usbcore: registered new device driver usb
[ 0.282657] Linux video capture interface: v2.00
[ 0.283238] pps_core: LinuxPPS API ver. 1 registered
[ 0.283270] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
[ 0.283572] PTP clock support registered
[ 0.285711] Advanced Linux Sound Architecture Driver Initialized.
[ 0.291962] Bluetooth: Core ver 2.21
[ 0.292210] NET: Registered protocol family 31
[ 0.292239] Bluetooth: HCI device and connection manager initialized
[ 0.292389] Bluetooth: HCI socket layer initialized
[ 0.292458] Bluetooth: L2CAP socket layer initialized
[ 0.292906] Bluetooth: SCO socket layer initialized
[ 0.300318] clocksource: Switched to clocksource mxc_timer1
[ 0.301664] VFS: Disk quotas dquot_6.6.0
[ 0.301994] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.376072] NET: Registered protocol family 2
[ 0.379883] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.380099] TCP bind hash table entries: 4096 (order: 5, 147456 bytes)
[ 0.383962] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.384361] UDP hash table entries: 256 (order: 2, 20480 bytes)
[ 0.384881] UDP-Lite hash table entries: 256 (order: 2, 20480 bytes)
[ 0.387111] NET: Registered protocol family 1
[ 0.389811] RPC: Registered named UNIX socket transport module.
[ 0.389858] RPC: Registered udp transport module.
[ 0.389886] RPC: Registered tcp transport module.
[ 0.389912] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.399439] futex hash table entries: 256 (order: 2, 16384 bytes)
[ 0.404728] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[ 0.464310] NFS: Registering the id_resolver key type
[ 0.464764] Key type id_resolver registered
[ 0.464801] Key type id_legacy registered
[ 0.465108] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[ 0.469829] fuse init (API version 7.25)
[ 0.493977] io scheduler noop registered
[ 0.494026] io scheduler deadline registered
[ 0.495169] io scheduler cfq registered (default)
[ 0.509189] imx-sdma 20ec000.sdma: Direct firmware load for imx/sdma/sdma-imx6q.bin failed with error -2
[ 0.509257] imx-sdma 20ec000.sdma: external firmware not found, using ROM firmware
[ 0.535444] 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 18, base_baud = 5000000) is a IMX
[ 1.201387] console [ttymxc0] enabled
[ 1.211781] [drm] Initialized drm 1.1.0 20060810
[ 1.302731] brd: module loaded
[ 1.353229] loop: module loaded
[ 1.369515] libphy: Fixed MDIO Bus: probed
[ 1.376830] CAN device driver interface
[ 1.384819] 2188000.ethernet supply phy not found, using dummy regulator
[ 1.396251] pps pps0: new PPS source ptp0
[ 1.401067] fec 2188000.ethernet (unnamed net_device) (uninitialized): Invalid MAC address: 00:00:00:00:00:00
[ 1.411181] fec 2188000.ethernet (unnamed net_device) (uninitialized): Using random MAC address: 32:c5:1e:80:8a:07
[ 1.423701] libphy: fec_enet_mii_bus: probed
[ 1.438037] fec 2188000.ethernet eth0: registered PHC device 0
[ 1.447577] usbcore: registered new interface driver asix
[ 1.453727] usbcore: registered new interface driver ax88179_178a
[ 1.460557] usbcore: registered new interface driver cdc_ether
[ 1.466775] usbcore: registered new interface driver net1080
[ 1.473037] usbcore: registered new interface driver cdc_subset
[ 1.479324] usbcore: registered new interface driver zaurus
[ 1.485665] usbcore: registered new interface driver cdc_ncm
[ 1.491469] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.498046] ehci-pci: EHCI PCI platform driver
[ 1.502930] ehci-mxc: Freescale On-Chip EHCI Host driver
[ 1.509848] usbcore: registered new interface driver usb-storage
[ 1.527647] ci_hdrc ci_hdrc.0: EHCI Host Controller
[ 1.533524] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
[ 1.570446] ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00
[ 1.585297] hub 1-0:1.0: USB hub found
[ 1.589582] hub 1-0:1.0: 1 port detected
[ 1.604334] mousedev: PS/2 mouse device common for all mice
[ 1.615129] input: 20cc000.snvs:snvs-powerkey as /devices/soc0/soc/2000000.aips-bus/20cc000.snvs/20cc000.snvs:snvs-powerkey/input/input0
[ 1.641213] snvs_rtc 20cc000.snvs:snvs-rtc-lp: rtc core: registered 20cc000.snvs:snvs-r as rtc0
[ 1.650564] i2c /dev entries driver
[ 1.655814] IR NEC protocol handler initialized
[ 1.660536] IR RC5(x/sz) protocol handler initialized
[ 1.665640] IR RC6 protocol handler initialized
[ 1.670282] IR JVC protocol handler initialized
[ 1.674860] IR Sony protocol handler initialized
[ 1.679517] IR SANYO protocol handler initialized
[ 1.684324] IR Sharp protocol handler initialized
[ 1.689075] IR MCE Keyboard/mouse protocol handler initialized
[ 1.695005] IR XMP protocol handler initialized
[ 1.715093] imx2-wdt 20bc000.wdog: timeout 60 sec (nowayout=0)
[ 1.721581] Bluetooth: HCI UART driver ver 2.3
[ 1.726086] Bluetooth: HCI UART protocol H4 registered
[ 1.731355] Bluetooth: HCI UART protocol LL registered
[ 1.738489] sdhci: Secure Digital Host Controller Interface driver
[ 1.744810] sdhci: Copyright(c) Pierre Ossman
[ 1.749210] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.757736] sdhci-esdhc-imx 2190000.usdhc: Got CD GPIO
[ 1.831511] mmc0: SDHCI controller on 2190000.usdhc [2190000.usdhc] using ADMA
[ 1.909486] mmc0: host does not support reading read-only switch, assuming write-enable
[ 1.917756] mmc1: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADMA
[ 1.942997] mmc0: new high speed SDHC card at address 1234
[ 1.978846] usbcore: registered new interface driver usbhid
[ 1.984608] usbhid: USB HID core driver
[ 1.995026] mmcblk0: mmc0:1234 SA04G 3.64 GiB
[ 2.010527] mmcblk0: p1 p2
[ 2.040427] random: fast init done
[ 2.055771] NET: Registered protocol family 10
[ 2.060674] mmc1: new DDR MMC card at address 0001
[ 2.072232] mmcblk1: mmc1:0001 MMC02G 1.79 GiB
[ 2.082455] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 2.092614] mmcblk1boot0: mmc1:0001 MMC02G partition 1 1.00 MiB
[ 2.103998] NET: Registered protocol family 17
[ 2.108594] can: controller area network core (rev 20120528 abi 9)
[ 2.115230] mmcblk1boot1: mmc1:0001 MMC02G partition 2 1.00 MiB
[ 2.123273] mmcblk1rpmb: mmc1:0001 MMC02G partition 3 128 KiB
[ 2.135563] NET: Registered protocol family 29
[ 2.145289] can: raw protocol (rev 20120528)
[ 2.149873] can: broadcast manager protocol (rev 20160617 t)
[ 2.168115] can: netlink gateway (rev 20130117) max_hops=1
[ 2.175783] Key type dns_resolver registered
[ 2.183776] cpu cpu0: dev_pm_opp_get_opp_count: OPP table not found (-19)
[ 2.196849] Registering SWP/SWPB emulation handler
[ 2.213038] snvs_rtc 20cc000.snvs:snvs-rtc-lp: setting system clock to 1970-01-01 00:00:58 UTC (58)
[ 2.302257] vdd3p0: disabling
[ 2.306262] ALSA device list:
[ 2.309265] No soundcards found.
[ 2.327776] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 2.481623] EXT4-fs (mmcblk0p2): recovery complete
[ 2.490129] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 2.498590] VFS: Mounted root (ext4 filesystem) on device 179:2.
[ 2.507925] devtmpfs: mounted
[ 2.514513] Freeing unused kernel memory: 1024K (c0d00000 - c0e00000)
[ 2.658588] EXT4-fs (mmcblk0p2): re-mounted. Opts: errors=remount-ro,data=ordered
Starting logging: OK
Initializing random number generator... done.
Starting network: [ 3.352162] Generic PHY 2188000.ethernet:00: attached PHY driver [Generic PHY] (mii_bus:phy_addr=2188000.ethernet:00, irq=-1)
[ 3.364245] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
udhcpc: started, v1.25.1
udhcpc: sending discover
udhcpc: sending discover
udhcpc: sending discover
udhcpc: no lease, failing
FAIL
Welcome to Buildroot
buildroot login:
With default configuration you can log as a ''root'' (no password needed) and start to use your [[litesom::liteboard]].