AXEL ULite and SBC Lynx Embedded Linux Kit (XUELK)

Info Box Applies to AXEL ULite Applies to SBC Lynx

Introduction

SBC Lynx

SBC Lynx Embedded Linux Kit (XUELK for short) provides all the necessary components required to set up the developing environment to:

• build the bootloader (U-Boot)
• build and run Linux operating system on SBC Lynx board
• build and debug applications that will be executed on top of Yocto-based Linux distribution running on the target.

The main kit components are:

• hardware platform composed
• development host released in the form of Managed Virtual Machine, tailored for Yocto-based distribution
• technical documentation such hardware manuals, mechanical drawings, reference schematics, application notes etc.

The documents related to the software issues help the user to quickly start configuring the bootloader and the operating system, by hiding most of the complexity of the underlying hardware. Reading of the Managed Virtual Machine documentation is strongly recommended, as it plays a major role in the XUELK organization.

For more details about SBC Lynx hardware characteristics, please refer to the SBC Lynx Hardware Manual. An account for the reserved area of DAVE Embedded Systems website is required to access the kit contents.

Kit Contents

Component	Description	Notes
	SBC Lynx CPU: NXP i.MX6UL SDRAM: 512 GB DDR3 NOR: bootable SPI flash 32 MB NAND: 1GB	Please refer to SBC Lynx Hardware Manual
	AC/DC Single Output Wall Mount adapter Output: +12V – 2.0 A
	FTDI TTL/USB cable
	MicroSDHC card with SD adapter and USB adapter

XUELK software components

SBC Lynx Embedded Linux Kit is largely derived from the Yocto distributions released by NXP for the i.MX6 product family. For this reason most of the documentation provided by NXP remains valid for the XUELK development kit.

The following table reports the XUELK releases information.

	XUELK version
Release number	0.9.0
Release type	Major
Status	Beta
Release date	March 2016
Release notes	0.9.0
PCB version	CS214515
ConfigIDs (core/interfaces)	0x00000008/0x0000000E
MVM version	xuelk-0.9.0, tested with: Virtual Box 5.0.14 Vagrant 1.8.1
U-Boot version/release	U-Boot 2015.04/xuelk-0.9.0
Linux version/release	Linux 3.14.52/xuelk-0.9.0
Drivers	UART Ethernet SD/MMC USB Host USB Device NOR Flash NAND Flash ADC RTC
NXP BSP version	3.14.52_1.1.0_ga
Build System	Yocto Fido (1.8)

XUELK microSD Layout

The microSD provided with XUELK is used to store:

• A FAT32 partition (mmcblk0p1) containing:
  • U-Boot bootscript
  • Linux kernel and DTB binary images
  • XUELK documentation
  • XUELK virtual machine image in OFV format (MVM basic version)
• XUELK root file system partition (mmcblk0p2, ext3)

XUELK updates

It's recommended to use the latest available XUELK version. Please refer to Release notes for further information.

XUELK updating process consists of updating the Managed Virtual Machine it is based on. The procedure is described here.

Please note that this process implicitly updates source code repositories. Thus it is strongly recommended to create new local branches if you need to modify source code.

Release notes

XUELK 0.9.0

Notes

First beta release.

Known issues and limitations

The following table reports the known limitations of this XUELK release:

Issue	Description
Rebooting in Linux may hang	Software reboot on Linux may hang (without rebooting the board) when root file system in on SD/MMC
USB OTG Current Limit	USB OTG current limit is set at 75mA in Host mode
LDO Mode not supported	LDO Mode is not supported in this SW release
Low Power Idle not supported	Low Power Idle is not supported in this release
DDR3 Frequency limited at 306 MHz	The DDR3 RAM frequency is limited at 306 MHz in this release

Quick start guide

This chapter describes how to quickly start working with the XUELK kit. The following paragraphs will guide you through the setup and installation procedures.

Kit registration

Customers are recommended to register their kits. This allows them to get access to additional information and upgrades that are available in the download area of DAVE Embedded Systems web site.

Please register your development kit by sending an email to support-lynx@dave.eu, providing the kit P/N and CODE.

Host setup

As stated previously, XUELK is based on a Managed Virtual Machine. To install it, please follow the procedure described here.

In case you chose to use the Advanced version of the MVM, the project-name to be used is lynx.

Target setup

This section describes how to quick start an SBC Lynx board.

• connect a TTL/USB serial cable to J42 connector; J42 pinout is:
  • 1: TX data
  • 2: RX data
  • 3: 3.3V
  • 4: GND
• on host side start your favorite terminal that will be used to interact with the target's serial console; communication parameters are 115200-8-N-1
• optionally connect the system to Ethernet LAN by plugging cable into connector J16
• connect 12V power supply to J35 connector; J35 pinout is:
  • 1: GND
  • 2: VIN
• insert microSD card in the slot J43.

First boot

Once power has been applied to the target, U-Boot bootloader will be fetched from the SPI NOR flash and executed. Boot messages will be printed out on the serial console. Redundant U-Boot environment is stored in the NOR flash as well, as depicted in the following image.

NOR flash default partitioning

By default, U-Boot environment is configured to retrieve Linux kernel image stored in the microSD card. In turn, Linux kernel shall mount root file system from the mmcblk0p2 partition of the microSD card itself. At the end of boot process, Linux shell shall be available on the serial console.

The following dump shows the typical messages printed out during bootstrap process.

U-Boot 2015.04 (Mar 31 2016 - 23:22:16)-xuelk-0.9.0

CPU:   Freescale i.MX6UL rev1.0 at 396 MHz
CPU:   Temperature 30 C
Reset cause: POR
Board: MX6UL LYNX
I2C:   ready
DRAM:  512 MiB
PMIC: PFUZE300 DEV_ID=0x30 REV_ID=0x11
NAND:  1024 MiB
MMC:   FSL_SDHC: 0
SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB
In:    serial
Out:   serial
Err:   serial
SOM ConfigID#: 00000008
SOM UniqueID#: e317402a:1735b1d4
CB ConfigID#: 0000000e
CB UniqueID#: a0000011:0dcf672d
Board: MX6UL-Lynx
Net:   FEC0
Normal Boot
Hit any key to stop autoboot:  0
starting USB...
USB0:   Port not available.
USB1:   USB EHCI 1.00
scanning bus 1 for devices... 1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found
       scanning usb for ethernet devices... 0 Ethernet Device(s) found

USB device 0: unknown device
** Bad device usb 0 **
switch to partitions #0, OK
mmc0 is current device
reading boot.scr
228 bytes read in 12 ms (18.6 KiB/s)
Running bootscript from mmc ...
## Executing script at 80800000
bootscript generated with command "mkimage -T script -C none -n SBC-Lynx -d bootscript.txt boot.scr"
Booting SBC-Lynx via mmcboot
reading uImage
6033832 bytes read in 277 ms (20.8 MiB/s)
reading imx6ul-lynx.dtb
29394 bytes read in 22 ms (1.3 MiB/s)
FDT: override 'som_configid' with '00000008'
FDT: property cb_configid 0000000e match
FDT: override 'som_uniqueid' with 'e317402a:1735b1d4'
FDT: override 'cb_uniqueid' with 'a0000011:0dcf672d'
## Booting kernel from Legacy Image at 80800000 ...
   Image Name:   Linux-3.14.52-xuelk-0.9.0
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    6033768 Bytes = 5.8 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 83000000
   Booting using the fdt blob at 0x83000000
EHCI failed to shut down host controller.
   Loading Kernel Image ... OK
   Using Device Tree in place at 83000000, end 8300a2d1
switch to ldo_bypass mode!

Starting kernel ...

Booting Linux on physical CPU 0x0
Linux version 3.14.52-xuelk-0.9.0 (amon@linuxserver2) (gcc version 4.9.2 (GCC) ) #2 SMP PREEMPT Thu Mar 31 22:53:29 CEST 2016
CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c53c7d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: Freescale i.MX6 UltraLite LYNX Board
cma: CMA: reserved 320 MiB at 8c000000
Memory policy: Data cache writealloc
PERCPU: Embedded 8 pages/cpu @8bb41000 s8320 r8192 d16256 u32768
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 130048
Kernel command line: root=/dev/mmcblk1p2 rootwait rw console=ttymxc0,115200 vmalloc=400M mtdparts=gpmi-nand:8M(nand-uboot),1M(nand-env1),1M(nand-env2),1M(nand-fdt),1M(nand-spare),8M(nand-kernel),4M(nand-splash),-(nand-ubi);spi0.0:1M(spi-uboot),256k(spi-env1),256k(spi-env2),512k(spi-dtb),6M(spi-kernel),4M(spi-splash),-(spi-free)
PID hash table entries: 2048 (order: 1, 8192 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 179908K/524288K available (7511K kernel code, 461K rwdata, 2596K rodata, 392K init, 433K bss, 344380K reserved, 0K highmem)
Virtual kernel memory layout:
    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
    vmalloc : 0xa0800000 - 0xff000000   (1512 MB)
    lowmem  : 0x80000000 - 0xa0000000   ( 512 MB)
    pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
    modules : 0x7f000000 - 0x7fe00000   (  14 MB)
      .text : 0x80008000 - 0x809e7134   (10109 kB)
      .init : 0x809e8000 - 0x80a4a080   ( 393 kB)
      .data : 0x80a4c000 - 0x80abf400   ( 461 kB)
       .bss : 0x80abf40c - 0x80b2ba5c   ( 434 kB)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
        RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
NR_IRQS:16 nr_irqs:16 16
Switching to timer-based delay loop
sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
clocksource_of_init: no matching clocksources found
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=30000)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
/cpus/cpu@0 missing clock-frequency property
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x807267c0 - 0x80726818
Brought up 1 CPUs
SMP: Total of 1 processors activated (6.00 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
pinctrl core: initialized pinctrl subsystem
regulator-dummy: no parameters
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
cpuidle: using governor menu
Use WDOG1 as reset source
syscon 20c8000.anatop: regmap [mem 0x020c8000-0x020c8fff] registered
vdd3p0: 2625 <--> 3400 mV at 3000 mV
cpu: 725 <--> 1450 mV
vddsoc: 725 <--> 1450 mV
syscon 20e4000.iomuxc-gpr: regmap [mem 0x020e4000-0x020e7fff] registered
syscon 21ac000.romcp: regmap [mem 0x021ac000-0x021affff] registered
syscon 21bc000.ocotp-ctrl: regmap [mem 0x021bc000-0x021bffff] registered
hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 8 bytes.
imx6ul-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
20dc000.gpc supply pu not found, using dummy regulator
bio: create slab <bio-0> at 0
mxs-dma 1804000.dma-apbh: initialized
vref-3v3: 3300 mV
usb_otg1_vbus: 5000 mV
usb_otg2_vbus: 5000 mV
i2c-core: driver [max17135] using legacy suspend method
i2c-core: driver [max17135] using legacy resume method
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
i2c i2c-0: IMX I2C adapter registered
Linux video capture interface: v2.00
pps_core: LinuxPPS API ver. 1 registered
pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
PTP clock support registered
MIPI CSI2 driver module loaded
Advanced Linux Sound Architecture Driver Initialized.
Bluetooth: Core ver 2.18
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP socket layer initialized
Bluetooth: SCO socket layer initialized
cfg80211: Calling CRDA to update world regulatory domain
Switched to clocksource mxc_timer1
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP: reno registered
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
imx rpmsg driver is registered.
Bus freq driver module loaded
futex hash table entries: 256 (order: 2, 16384 bytes)
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
fuse init (API version 7.22)
msgmni has been set to 991
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
imx-weim 21b8000.weim: Driver registered.
MIPI DSI driver module loaded
MIPI DSI driver module loaded
imx-sdma 20ec000.sdma: no event needs to be remapped
imx-sdma 20ec000.sdma: loaded firmware 3.2
imx-sdma 20ec000.sdma: initialized
pfuze100-regulator 0-0008: Full layer: 1, Metal layer: 1
pfuze100-regulator 0-0008: FAB: 0, FIN: 0
pfuze100-regulator 0-0008: pfuze3000 found.
SW1A: 700 <--> 3300 mV at 3300 mV
SW1B: 700 <--> 1475 mV at 1175 mV
SW2: 2500 <--> 3300 mV at 3300 mV
SW3: 900 <--> 1650 mV at 1350 mV
SWBST: 5000 <--> 5150 mV at 5000 mV
VSNVS: 1000 <--> 3000 mV at 3000 mV
VREFDDR: 750 mV
VLDO1: 1800 <--> 3300 mV at 3300 mV
VLDO2: 800 <--> 1550 mV at 1500 mV
VCCSD: 2850 <--> 3300 mV at 3300 mV
V33: 2850 <--> 3300 mV at 3300 mV
VLDO3: 1800 <--> 3300 mV at 1800 mV
VLDO4: 1800 <--> 3300 mV at 1800 mV
Serial: IMX driver
2018000.serial: ttymxc6 at MMIO 0x2018000 (irq = 71, base_baud = 5000000) is a IMX
2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 58, base_baud = 5000000) is a IMX
console [ttymxc0] enabled
21ec000.serial: ttymxc2 at MMIO 0x21ec000 (irq = 60, base_baud = 5000000) is a IMX
serial: Freescale lpuart driver
imx sema4 driver is registered.
[drm] Initialized drm 1.1.0 20060810
[drm] Initialized vivante 1.0.0 20120216 on minor 0
brd: module loaded
loop: module loaded
nand: device found, Manufacturer ID: 0x01, Chip ID: 0xd3
nand: AMD/Spansion S34ML08G1
nand: 1024MiB, SLC, page size: 2048, OOB size: 64
gpmi-nand 1806000.gpmi-nand: mode:4 ,failed in set feature.
Scanning device for bad blocks
random: nonblocking pool is initialized
Bad eraseblock 5903 at 0x00002e1e0000
8 cmdlinepart partitions found on MTD device gpmi-nand
Creating 8 MTD partitions on "gpmi-nand":
0x000000000000-0x000000800000 : "nand-uboot"
0x000000800000-0x000000900000 : "nand-env1"
0x000000900000-0x000000a00000 : "nand-env2"
0x000000a00000-0x000000b00000 : "nand-fdt"
0x000000b00000-0x000000c00000 : "nand-spare"
0x000000c00000-0x000001400000 : "nand-kernel"
0x000001400000-0x000001800000 : "nand-splash"
0x000001800000-0x000040000000 : "nand-ubi"
gpmi-nand 1806000.gpmi-nand: driver registered.
m25p80 spi0.0: s25fl256s1 (32768 Kbytes)
7 cmdlinepart partitions found on MTD device spi0.0
Creating 7 MTD partitions on "spi0.0":
0x000000000000-0x000000100000 : "spi-uboot"
0x000000100000-0x000000140000 : "spi-env1"
0x000000140000-0x000000180000 : "spi-env2"
0x000000180000-0x000000200000 : "spi-dtb"
0x000000200000-0x000000800000 : "spi-kernel"
0x000000800000-0x000000c00000 : "spi-splash"
0x000000c00000-0x000002000000 : "spi-free"
spi_imx 2008000.ecspi: probed
CAN device driver interface
2188000.ethernet supply phy not found, using dummy regulator
pps pps0: new PPS source ptp0
libphy: fec_enet_mii_bus: probed
fec 2188000.ethernet eth0: registered PHC device 0
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-mxc: Freescale On-Chip EHCI Host driver
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver usb_ehset_test
2184800.usbmisc supply vbus-wakeup not found, using dummy regulator
ci_hdrc ci_hdrc.1: EHCI Host Controller
ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
mousedev: PS/2 mouse device common for all mice
snvs_pwrkey 20cc000.snvs-pwrkey: can't get snvs clock
input: 20cc000.snvs-pwrkey as /devices/soc0/soc.0/2000000.aips-bus/20cc000.snvs-pwrkey/input/input0
snvs_pwrkey 20cc000.snvs-pwrkey: i.MX snvs powerkey probed
i2c-core: driver [isl29023] using legacy suspend method
i2c-core: driver [isl29023] using legacy resume method
snvs_rtc 20cc034.snvs-rtc-lp: can't get snvs-rtc clock
snvs_rtc 20cc034.snvs-rtc-lp: rtc core: registered 20cc034.snvs-rtc-lp as rtc0
i2c /dev entries driver
IR NEC protocol handler initialized
IR RC5(x) protocol handler initialized
IR RC6 protocol handler initialized
IR JVC protocol handler initialized
IR Sony protocol handler initialized
IR RC5 (streamzap) protocol handler initialized
IR SANYO protocol handler initialized
IR MCE Keyboard/mouse protocol handler initialized
i2c-core: driver [mag3110] using legacy suspend method
i2c-core: driver [mag3110] using legacy resume method
imx2-wdt 20bc000.wdog: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=0)
Bluetooth: HCI UART driver ver 2.2
Bluetooth: HCI H4 protocol initialized
Bluetooth: HCI BCSP protocol initialized
Bluetooth: HCIATH3K protocol initialized
usbcore: registered new interface driver bcm203x
usbcore: registered new interface driver btusb
usbcore: registered new interface driver ath3k
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
mmc1: no vqmmc regulator found
mmc1: no vmmc regulator found
mmc1: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADMA
caam 2140000.caam: Instantiated RNG4 SH0
mmc1: host does not support reading read-only switch. assuming write-enable.
caam 2140000.caam: Instantiated RNG4 SH1
caam 2140000.caam: device ID = 0x0a160300 (Era 8)
caam 2140000.caam: job rings = 3, qi = 0
mmc1: new high speed SDHC card at address 1234
mmcblk1: mmc1:1234 SA16G 14.4 GiB
 mmcblk1: p1 p2
caam algorithms registered in /proc/crypto
caam_jr 2141000.jr0: registering rng-caam
platform caam_sm: blkkey_ex: 8 keystore units available
platform caam_sm: 64-bit clear key:
platform caam_sm: [0000] 00 01 02 03 04 0f 06 07
platform caam_sm: 64-bit black key:
platform caam_sm: [0000] 5f 69 65 43 d8 01 d4 35
platform caam_sm: [0008] 72 51 75 22 a5 33 93 cf
platform caam_sm: 128-bit clear key:
platform caam_sm: [0000] 00 01 02 03 04 0f 06 07
platform caam_sm: [0008] 08 09 0a 0b 0c 0d 0e 0f
platform caam_sm: 128-bit black key:
platform caam_sm: [0000] 7e 83 f5 8e ed bd bf 4e
platform caam_sm: [0008] 6f 98 a2 68 c3 30 a3 81
platform caam_sm: 192-bit clear key:
platform caam_sm: [0000] 00 01 02 03 04 0f 06 07
platform caam_sm: [0008] 08 09 0a 0b 0c 0d 0e 0f
platform caam_sm: [0016] 10 11 12 13 14 15 16 17
platform caam_sm: 192-bit black key:
platform caam_sm: [0000] 73 ba ab 08 93 75 f2 e3
platform caam_sm: [0008] 66 73 d2 17 0c a7 f3 08
platform caam_sm: [0016] 5b ee ee 28 37 82 c6 d6
platform caam_sm: [0024] 75 3f 5e fc 50 be 9f c9
platform caam_sm: 256-bit clear key:
platform caam_sm: [0000] 00 01 02 03 04 0f 06 07
platform caam_sm: [0008] 08 09 0a 0b 0c 0d 0e 0f
platform caam_sm: [0016] 10 11 12 13 14 15 16 17
platform caam_sm: [0024] 18 19 1a 1b 1c 1d 1e 1f
platform caam_sm: 256-bit black key:
platform caam_sm: [0000] da 35 27 8d 68 e2 e8 44
platform caam_sm: [0008] 58 3a 7d 32 ea 54 dc 77
platform caam_sm: [0016] 48 a1 28 bc a2 71 ad 8d
platform caam_sm: [0024] 6f 9a 59 ba 5c 35 63 56
platform caam_sm: 64-bit unwritten blob:
platform caam_sm: [0000] 00 00 00 00 00 00 00 00
platform caam_sm: [0008] 00 00 00 00 00 00 00 00
platform caam_sm: [0016] 00 00 00 00 00 00 00 00
platform caam_sm: [0024] 00 00 00 00 00 00 00 00
platform caam_sm: [0032] 00 00 00 00 00 00 00 00
platform caam_sm: [0040] 00 00 00 00 00 00 00 00
platform caam_sm: [0048] 00 00 00 00 00 00 00 00
platform caam_sm: [0056] 00 00 00 00 00 00 00 00
platform caam_sm: [0064] 00 00 00 00 00 00 00 00
platform caam_sm: [0072] 00 00 00 00 00 00 00 00
platform caam_sm: [0080] 00 00 00 00 00 00 00 00
platform caam_sm: [0088] 00 00 00 00 00 00 00 00
platform caam_sm: 128-bit unwritten blob:
platform caam_sm: [0000] 00 00 00 00 00 00 00 00
platform caam_sm: [0008] 00 00 00 00 00 00 00 00
platform caam_sm: [0016] 00 00 00 00 00 00 00 00
platform caam_sm: [0024] 00 00 00 00 00 00 00 00
platform caam_sm: [0032] 00 00 00 00 00 00 00 00
platform caam_sm: [0040] 00 00 00 00 00 00 00 00
platform caam_sm: [0048] 00 00 00 00 00 00 00 00
platform caam_sm: [0056] 00 00 00 00 00 00 00 00
platform caam_sm: [0064] 00 00 00 00 00 00 00 00
platform caam_sm: [0072] 00 00 00 00 00 00 00 00
platform caam_sm: [0080] 00 00 00 00 00 00 00 00
platform caam_sm: [0088] 00 00 00 00 00 00 00 00
platform caam_sm: 196-bit unwritten blob:
platform caam_sm: [0000] 00 00 00 00 00 00 00 00
platform caam_sm: [0008] 00 00 00 00 00 00 00 00
platform caam_sm: [0016] 00 00 00 00 00 00 00 00
platform caam_sm: [0024] 00 00 00 00 00 00 00 00
platform caam_sm: [0032] 00 00 00 00 00 00 00 00
platform caam_sm: [0040] 00 00 00 00 00 00 00 00
platform caam_sm: [0048] 00 00 00 00 00 00 00 00
platform caam_sm: [0056] 00 00 00 00 00 00 00 00
platform caam_sm: [0064] 00 00 00 00 00 00 00 00
platform caam_sm: [0072] 00 00 00 00 00 00 00 00
platform caam_sm: [0080] 00 00 00 00 00 00 00 00
platform caam_sm: [0088] 00 00 00 00 00 00 00 00
platform caam_sm: 256-bit unwritten blob:
platform caam_sm: [0000] 00 00 00 00 00 00 00 00
platform caam_sm: [0008] 00 00 00 00 00 00 00 00
platform caam_sm: [0016] 00 00 00 00 00 00 00 00
platform caam_sm: [0024] 00 00 00 00 00 00 00 00
platform caam_sm: [0032] 00 00 00 00 00 00 00 00
platform caam_sm: [0040] 00 00 00 00 00 00 00 00
platform caam_sm: [0048] 00 00 00 00 00 00 00 00
platform caam_sm: [0056] 00 00 00 00 00 00 00 00
platform caam_sm: [0064] 00 00 00 00 00 00 00 00
platform caam_sm: [0072] 00 00 00 00 00 00 00 00
platform caam_sm: [0080] 00 00 00 00 00 00 00 00
platform caam_sm: [0088] 00 00 00 00 00 00 00 00
platform caam_sm: 64-bit black key in blob:
platform caam_sm: [0000] 76 1a d3 a8 86 30 b4 a9
platform caam_sm: [0008] 03 2d 01 ef dd 15 89 7c
platform caam_sm: [0016] d3 b3 14 03 ff 1d 6d ef
platform caam_sm: [0024] b1 74 a7 d4 2e 7f 3a 65
platform caam_sm: [0032] d5 b2 b6 56 e8 b0 82 cf
platform caam_sm: [0040] d4 59 c7 be 73 47 b9 db
platform caam_sm: [0048] 6f 44 84 81 a1 04 13 d9
platform caam_sm: [0056] 00 00 00 00 00 00 00 00
platform caam_sm: [0064] 00 00 00 00 00 00 00 00
platform caam_sm: [0072] 00 00 00 00 00 00 00 00
platform caam_sm: [0080] 00 00 00 00 00 00 00 00
platform caam_sm: [0088] 00 00 00 00 00 00 00 00
platform caam_sm: 128-bit black key in blob:
platform caam_sm: [0000] 50 a0 64 22 80 35 36 4e
platform caam_sm: [0008] 1c 6a 31 07 87 4c db f2
platform caam_sm: [0016] 13 6a 4c 47 08 40 e3 87
platform caam_sm: [0024] 98 52 fe 72 25 9f 91 dd
platform caam_sm: [0032] a6 e0 31 e1 72 50 ea 02
platform caam_sm: [0040] 05 a9 62 d8 7e dd 91 48
platform caam_sm: [0048] 58 94 2d bd 1c 84 9b 2e
platform caam_sm: [0056] 68 b7 16 05 6b 6c 4a 8a
platform caam_sm: [0064] 00 00 00 00 00 00 00 00
platform caam_sm: [0072] 00 00 00 00 00 00 00 00
platform caam_sm: [0080] 00 00 00 00 00 00 00 00
platform caam_sm: [0088] 00 00 00 00 00 00 00 00
platform caam_sm: 192-bit black key in blob:
platform caam_sm: [0000] a5 d5 43 dc 3e a5 72 dc
platform caam_sm: [0008] 6a 8c 07 1a 3c 29 29 0d
platform caam_sm: [0016] af d9 84 13 68 5f 65 15
platform caam_sm: [0024] 67 ae e9 5b 16 26 ab 2c
platform caam_sm: [0032] f3 ee 21 2f 51 ea f4 17
platform caam_sm: [0040] 27 42 81 f3 ea a2 73 fb
platform caam_sm: [0048] 8e b9 45 dd c8 04 9b 67
platform caam_sm: [0056] 6a 5f 9f c2 08 dc c7 73
platform caam_sm: [0064] 0b a5 46 35 bb 65 ee d1
platform caam_sm: [0072] 00 00 00 00 00 00 00 00
platform caam_sm: [0080] 00 00 00 00 00 00 00 00
platform caam_sm: [0088] 00 00 00 00 00 00 00 00
platform caam_sm: 256-bit black key in blob:
platform caam_sm: [0000] d6 36 a9 1b df 26 a2 7f
platform caam_sm: [0008] 1c 8b 99 8b 33 34 5a 92
platform caam_sm: [0016] c4 00 dc dc 51 c4 2c f4
platform caam_sm: [0024] c3 11 f6 c7 a2 7c c2 ba
platform caam_sm: [0032] 7f 6f 4a d1 a7 7f 7b a0
platform caam_sm: [0040] 2f cb f4 4a b8 b8 4d 54
platform caam_sm: [0048] ae 10 ce 13 02 c5 09 da
platform caam_sm: [0056] ce 88 da 48 10 ee 20 e5
platform caam_sm: [0064] 28 bb 0f 76 e4 8a 8e ee
platform caam_sm: [0072] 46 e2 69 6f ca d3 e4 ba
platform caam_sm: [0080] 00 00 00 00 00 00 00 00
platform caam_sm: [0088] 00 00 00 00 00 00 00 00
platform caam_sm: restored 64-bit black key:
platform caam_sm: [0000] 58 1c 8d b3 fa 93 6e 2c
platform caam_sm: [0008] f2 ae 66 67 b1 f4 e6 b9
platform caam_sm: restored 128-bit black key:
platform caam_sm: [0000] 7e 83 f5 8e ed bd bf 4e
platform caam_sm: [0008] 6f 98 a2 68 c3 30 a3 81
platform caam_sm: restored 192-bit black key:
platform caam_sm: [0000] 73 ba ab 08 93 75 f2 e3
platform caam_sm: [0008] 66 73 d2 17 0c a7 f3 08
platform caam_sm: [0016] ee 51 4c 4f 16 0a f2 9f
platform caam_sm: [0024] 9e c9 48 38 46 04 11 04
platform caam_sm: restored 256-bit black key:
platform caam_sm: [0000] da 35 27 8d 68 e2 e8 44
platform caam_sm: [0008] 58 3a 7d 32 ea 54 dc 77
platform caam_sm: [0016] 48 a1 28 bc a2 71 ad 8d
platform caam_sm: [0024] 6f 9a 59 ba 5c 35 63 56
snvs-secvio 20cc000.caam-snvs: can't get snvs clock
snvs-secvio 20cc000.caam-snvs: violation handlers armed - non-secure state
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
fsl-asrc 2034000.asrc: driver registered
NET: Registered protocol family 26
TCP: cubic registered
NET: Registered protocol family 10
sit: IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
can: controller area network core (rev 20120528 abi 9)
NET: Registered protocol family 29
can: raw protocol (rev 20120528)
can: broadcast manager protocol (rev 20120528 t)
can: netlink gateway (rev 20130117) max_hops=1
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM ver 1.11
Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Bluetooth: BNEP filters: protocol multicast
Bluetooth: BNEP socket layer initialized
Bluetooth: HIDP (Human Interface Emulation) ver 1.2
Bluetooth: HIDP socket layer initialized
8021q: 802.1Q VLAN Support v1.8
Key type dns_resolver registered
cpu cpu0: dev_pm_opp_get_opp_count: device OPP not found (-19)
SWBST: disabling
usb_otg1_vbus: disabling
regulator-dummy: disabling
imx mcc test is registered.
snvs_rtc 20cc034.snvs-rtc-lp: setting system clock to 2016-04-01 08:34:36 UTC (1459499676)
ALSA device list:
  No soundcards found.
kjournald starting.  Commit interval 5 seconds
EXT3-fs (mmcblk1p2): using internal journal
EXT3-fs (mmcblk1p2): recovery complete
EXT3-fs (mmcblk1p2): mounted filesystem with ordered data mode
VFS: Mounted root (ext3 filesystem) on device 179:2.
devtmpfs: mounted
Freeing unused kernel memory: 392K (809e8000 - 80a4a000)
INIT: version 2.88 booting
Error opening /dev/fb0: No such file or directory
Starting udev
udevd[157]: starting version 182

udevadm settle - timeout of 3 seconds reached, the event queue contains:
  /sys/devices/soc0/soc.0/2100000.aips-bus/2188000.ethernet/net/eth0 (1225)
  /sys/devices/soc0/soc.0/2100000.aips-bus/2194000.usdhc/mmc_host/mmc1/mmc1:1234/block/mmcblk1 (1231)
  /sys/devices/soc0/soc.0/2100000.aips-bus/2194000.usdhc/mmc_host/mmc1/mmc1:1234/block/mmcblk1/mmcblk1p1 (1232)
  /sys/devices/soc0/soc.0/2100000.aips-bus/2194000.usdhc/mmc_host/mmc1/mmc1:1234/block/mmcblk1/mmcblk1p2 (1233)
  /sys/devices/virtual/block/loop0 (1313)
  /sys/devices/virtual/block/loop1 (1314)
  /sys/devices/virtual/block/loop4 (1317)
  /sys/devices/virtual/block/loop5 (1318)
  /sys/devices/virtual/block/loop6 (1319)
  /sys/devices/virtual/block/loop7 (1320)
  /sys/devices/virtual/block/ram0 (1321)
  /sys/devices/virtual/block/ram1 (1322)
  /sys/devices/virtual/block/ram10 (1323)
  /sys/devices/virtual/block/ram11 (1324)
  /sys/devices/virtual/block/ram12 (1325)
  /sys/devices/virtual/block/ram13 (1326)
  /sys/devices/virtual/block/ram14 (1327)
  /sys/devices/virtual/block/ram15 (1328)
  /sys/devices/virtual/block/ram2 (1329)
  /sys/devices/virtual/block/ram3 (1330)
  /sys/devices/virtual/block/ram4 (1331)
  /sys/devices/virtual/block/ram5 (1332)
  /sys/devices/virtual/block/ram6 (1333)
  /sys/devices/virtual/block/ram7 (1334)
  /sys/devices/virtual/block/ram8 (1335)
  /sys/devices/virtual/block/ram9 (1336)
  /sys/devices/virtual/mtd/mtd0/mtdblock0 (1340)
  /sys/devices/virtual/mtd/mtd1/mtdblock1 (1343)
  /sys/devices/virtual/mtd/mtd2/mtdblock2 (1346)
  /sys/devices/virtual/mtd/mtd3/mtdblock3 (1349)
  /sys/devices/virtual/mtd/mtd4/mtdblock4 (1352)
  /sys/devices/virtual/mtd/mtd5/mtdblock5 (1355)
  /sys/devices/virtual/mtd/mtd6/mtdblock6 (1358)
  /sys/devices/virtual/mtd/mtd7/mtdblock7 (1361)
  /sys/devices/virtual/net/lo (1363)
  /sys/devices/virtual/net/sit0 (1364)
bootlogd: cannot allocate pseudo tty: No such file or directory
FAT-fs (mmcblk1p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
ALSA: Restoring mixer settings...
/usr/sbin/alsactl: load_state:1729: No soundcards found...
INIT: Entering runlevel: 5
Configuring network interfaces... fec 2188000.ethernet eth0: Freescale FEC PHY driver [Micrel KSZ8081 or KSZ8091] (mii_bus:phy_addr=2188000.ethernet:00, irq=-1)
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
done.
Starting Xserver
open /dev/fb0: No such file or directory
Starting system message bus: Unknown username "xuser" in message bus configuration file
dbus.
Starting Connection Manager
Starting Dropbear SSH server: dropbear.
Starting rpcbind daemon...done.
starting statd: done
Starting advanced power management daemon: No APM support in kernel
(failed.)
NFS daemon support not enabled in kernel
Starting syslogd/klogd: done
 * Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon
   ...done.
Starting Telephony daemon
Starting Linux NFC daemon
Starting OProfileUI server
Running local boot scripts (/etc/rc.local).
Starting tcf-agent: OK

Freescale i.MX Release Distro 3.14.52-1.1.0 sbc-lynx /dev/ttymxc0

sbc-lynx login: root
root@sbc-lynx:~#

Target configuration for the development stage (net_nfs)

During the development stage, the target is usually connected via Ethernet LAN to the host machine and is configured to:

• retrieve binary images (i.e. Linux kernel) via TFTP protocol
• mount the development root file system via NFS protocol. This root file system is physically in the file system of the host machine as depicted here.

In DAVE Embedded Systems development kits, this configuration is generally denoted as net_nfs. U-Boot bootloader supports this configuration. Some U-Boot environment variables are needed to set it up. They are detailed here.

For more details about TFTP and NFS servers on host side, please refer to this page.

Physical devices mapping

This section details how physical devices are mapped to Linux device files.

Console UART

Physical device	Processor's resource	Connector	Type	Linux device file	Notes
Boot Console	UART1	J42	2-wire LVTTL UART	/dev/ttymxc0

Multi-protocol UARTs

Ordering code: XUBBx0xxxxx

Physical device	Processor's resource	Connector	Type	Linux device file	Notes
MPUART0	UART7	J34	2-wire RS232	/dev/ttymxc6
MPUART1	UART3	J21	RS485	/dev/ttymxc2

Advanced topics

Debugging with Eclipse

Please refer to this page.