I test imx6ul-evk board.When in uboot state,pull down Por_B cpu will reboot.But when in Linux state,pull down Por_B cpu will never reboot!
who know why.
Booting Linux on physical CPU 0x0
Linux version 3.14.38-6UL_ga+ge4944a5 (jenkins@yb5) (gcc version 4.9.2 (GCC) ) #1 SMP PREEMPT Tue Aug 18 20:28:30 CDT 2015
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 14x14 EVK Board
cma: CMA: reserved 320 MiB at 8c000000
Memory policy: Data cache writealloc
PERCPU: Embedded 8 pages/cpu @8bb40000 s8320 r8192 d16256 u32768
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
Kernel command line: console=ttymxc0,115200 root=/dev/mmcblk1 rootwait rw
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: 179904K/524288K available (7479K kernel code, 456K rwdata, 2636K rodata, 388K init, 432K bss, 344384K 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 - 0x809e8e70 (10116 kB)
.init : 0x809e9000 - 0x80a4a080 ( 389 kB)
.data : 0x80a4c000 - 0x80abe180 ( 457 kB)
.bss : 0x80abe18c - 0x80b2a31c ( 433 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 0x8071e788 - 0x8071e7e0
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 at 1150 mV
vddsoc: 725 <--> 1450 mV at 1175 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
can-3v3: 3300 mV
VSD_3V3: 3300 mV
gpio_dvfs: 1300 <--> 1400 mV at 1400 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
i2c i2c-1: 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
Switched to clocksource mxc_timer1
cfg80211: Calling CRDA to update world regulatory domain
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.
backlight.8 supply power not found, using dummy regulator
MIPI DSI driver module loaded
21c8000.lcdif supply lcd not found, using dummy regulator
mxsfb 21c8000.lcdif: failed to find mxc display driver
Console: switching to colour frame buffer device 60x34
mxsfb 21c8000.lcdif: initialized
imx-sdma 20ec000.sdma: no event needs to be remapped
imx-sdma 20ec000.sdma: loaded firmware 3.1
imx-sdma 20ec000.sdma: initialized
Serial: IMX driver
2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 58, base_baud = 5000000) is a IMX
console [ttymxc0] enabled
21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 59, 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
fsl-quadspi 21e0000.qspi: n25q256a (32768 Kbytes)
fsl-quadspi 21e0000.qspi: QuadSPI SPI NOR flash driver
spi_gpio spi4.14: gpio-miso property not found, switching to no-rx mode
CAN device driver interface
flexcan 2090000.can: device registered (reg_base=a0968000, irq=142)
flexcan 2094000.can: device registered (reg_base=a0970000, irq=143)
20b4000.ethernet supply phy not found, using dummy regulator
pps pps0: new PPS source ptp0
libphy: fec_enet_mii_bus: probed
fec 20b4000.ethernet eth0: registered PHC device 0
2188000.ethernet supply phy not found, using dummy regulator
pps pps1: new PPS source ptp1
fec 2188000.ethernet eth1: registered PHC device 1
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
2184200.usb supply vbus 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
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
input: iMX6UL TouchScreen Controller as /devices/virtual/input/input1
i2c-core: driver [isl29023] using legacy suspend method
i2c-core: driver [isl29023] using legacy resume method
input: FreescaleAccelerometer as /devices/virtual/input/input2
fxls8471 device driver probe successfully
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
pxp-v4l2 pxp_v4l2.9: initialized
0-000e supply vdd not found, using dummy regulator
0-000e supply vddio not found, using dummy regulator
mag3110 0-000e: check mag3110 chip ID
input: mag3110 as /devices/virtual/input/input3
mag3110 0-000e: mag3110 is probed
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
mmc0: no vqmmc regulator found
mmc0: SDHCI controller on 2190000.usdhc [2190000.usdhc] using ADMA
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
caam 2140000.caam: Instantiated RNG4 SH1
mmc1: new high speed DDR MMC card at address 0001
caam 2140000.caam: device ID = 0x0a160300 (Era 8)
mmcblk1: mmc1:0001 SEM64G 58.4 GiB
caam 2140000.caam: job rings = 3, qi = 0
mmcblk1boot0: mmc1:0001 SEM64G partition 1 2.00 MiB
mmcblk1boot1: mmc1:0001 SEM64G partition 2 2.00 MiB
mmcblk1rpmb: mmc1:0001 SEM64G partition 3 128 KiB
mmcblk1: unknown partition table
mmcblk1boot1: unknown partition table
mmcblk1boot0: unknown partition table
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] a3 6b f6 71 36 35 0a dd
platform caam_sm: [0008] 40 81 e0 28 dd 15 a0 3c
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] c2 cc 76 fe 1c 4b 40 0a
platform caam_sm: [0008] 80 4a 0e 1f 5a b9 d9 76
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] ea 18 4f 58 38 04 6c af
platform caam_sm: [0008] 17 52 86 d8 ff ff ce dd
platform caam_sm: [0016] 1e 58 22 4c a5 ac 0f 51
platform caam_sm: [0024] 00 f6 dc 43 8f 31 83 6b
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] 67 8f e9 74 02 70 35 48
platform caam_sm: [0008] 42 2d 5e 2f 18 78 e0 1c
platform caam_sm: [0016] 09 e6 0d c6 1a 5c a6 da
platform caam_sm: [0024] a2 28 19 d9 55 1e 39 7f
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] 2d 46 53 6b da b2 b3 51
platform caam_sm: [0008] 0b c6 e7 7a d3 41 6b 03
platform caam_sm: [0016] 8d db b9 55 ed 57 f2 50
platform caam_sm: [0024] 80 82 af 38 e6 af e6 fd
platform caam_sm: [0032] eb c8 4a 6d 90 d3 2f fb
platform caam_sm: [0040] a6 93 45 3c 14 77 6b 7a
platform caam_sm: [0048] 44 4c eb ed d6 3b 17 ee
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] 5a b0 45 0d a4 c7 53 6e
platform caam_sm: [0008] da a8 28 32 a1 c1 ef a5
platform caam_sm: [0016] 9f 33 7b 37 f6 07 db 14
platform caam_sm: [0024] f4 aa e2 8c 48 8c 8d d7
platform caam_sm: [0032] 06 75 d8 59 71 f3 cd e6
platform caam_sm: [0040] 16 39 02 81 4f 4b a4 51
platform caam_sm: [0048] d1 39 57 e2 f7 1a f1 23
platform caam_sm: [0056] 77 28 9c 22 7f 0b 0a ec
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] 38 01 98 f8 ba 41 ee e7
platform caam_sm: [0008] dc f0 e4 e3 9e c3 d8 18
platform caam_sm: [0016] 1c 2b a5 0c 8c 56 d0 45
platform caam_sm: [0024] b2 f9 41 63 e9 0a 75 0f
platform caam_sm: [0032] 7a ac 21 07 31 65 3b 1b
platform caam_sm: [0040] e9 82 8a c1 b4 45 19 e1
platform caam_sm: [0048] 56 e2 cc 3f ad 2d 69 f4
platform caam_sm: [0056] 2a a5 e8 7c e7 9e a1 93
platform caam_sm: [0064] a5 0c 1e 4d ca 59 1d 41
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] 4d ae 6d 5b 90 52 81 1f
platform caam_sm: [0008] cb 5c 18 c7 09 d0 44 1a
platform caam_sm: [0016] 85 20 bd 73 99 37 e6 6f
platform caam_sm: [0024] 2b 2b e1 76 e9 0c 56 12
platform caam_sm: [0032] b4 05 52 08 7d 06 4d a7
platform caam_sm: [0040] fa 22 54 5f 4a 81 4f fb
platform caam_sm: [0048] 52 4b f8 ba 6f c4 71 23
platform caam_sm: [0056] d9 5f 12 f4 06 35 fc 71
platform caam_sm: [0064] 0e a2 6f 6a 91 31 d7 10
platform caam_sm: [0072] 23 d1 bf 91 ba 95 8b 46
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] ec b9 d3 57 6f f4 bb 8e
platform caam_sm: [0008] d5 50 d2 0d e2 95 00 44
platform caam_sm: restored 128-bit black key:
platform caam_sm: [0000] c2 cc 76 fe 1c 4b 40 0a
platform caam_sm: [0008] 80 4a 0e 1f 5a b9 d9 76
platform caam_sm: restored 192-bit black key:
platform caam_sm: [0000] ea 18 4f 58 38 04 6c af
platform caam_sm: [0008] 17 52 86 d8 ff ff ce dd
platform caam_sm: [0016] b6 b7 97 5f 20 eb 36 81
platform caam_sm: [0024] 20 cd 1e ac 45 e2 33 9a
platform caam_sm: restored 256-bit black key:
platform caam_sm: [0000] 67 8f e9 74 02 70 35 48
platform caam_sm: [0008] 42 2d 5e 2f 18 78 e0 1c
platform caam_sm: [0016] 09 e6 0d c6 1a 5c a6 da
platform caam_sm: [0024] a2 28 19 d9 55 1e 39 7f
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
snd-soc-dummy snd-soc-dummy: ASoC: Failed to create platform debugfs directory
imx-wm8960 sound.13: wm8960-hifi <-> 202c000.sai mapping ok
imx-wm8960 sound.13: snd-soc-dummy-dai <-> 2034000.asrc mapping ok
imx-wm8960 sound.13: wm8960-hifi <-> 202c000.sai mapping ok
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)
gpio_dvfs: disabling
VSD_3V3: disabling
can-3v3: disabling
regulator-dummy: disabling
imx mcc test is registered.
snvs_rtc 20cc034.snvs-rtc-lp: setting system clock to 2015-11-25 02:36:13 UTC (1448418973)
ALSA device list:
#0: wm8960-audio
kjournald starting. Commit interval 5 seconds
EXT3-fs (mmcblk1): using internal journal
EXT3-fs (mmcblk1): recovery complete
EXT3-fs (mmcblk1): mounted filesystem with ordered data mode
VFS: Mounted root (ext3 filesystem) on device 179:0.
devtmpfs: mounted
Freeing unused kernel memory: 388K (809e9000 - 80a4a000)
INIT: version 2.88 booting
Starting udev
udevd[158]: starting version 182
random: nonblocking pool is initialized
bootlogd: cannot allocate pseudo tty: No such file or directory
ALSA: Restoring mixer settings...
Found hardware: "wm8960-audio" "" "" "" ""
Hardware is initialized using a generic method
INIT: Entering runlevel: 5
Configuring network interfaces... fec 20b4000.ethernet eth0: Freescale FEC PHY driver [Micrel KSZ8081 or KSZ8091] (mii_bus:phy_addr=20b4000.ethernet:01, irq=-1)
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
done.
Starting Xserver
Starting system message bus: Unknown username "xuser" in message bus configuration file
dbus.
Starting Connection Manager
Starting Dropbear SSH server: dropbear.
Starting rpcbind daemon...fec 2188000.ethernet eth1: Freescale FEC PHY driver [Micrel KSZ8081 or KSZ8091] (mii_bus:phy_addr=20b4000.ethernet:02, irq=-1)
IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
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).
Poky (Yocto Project Reference Distro) 1.8 imx6ulevk /dev/ttymxc0
imx6ulevk login:
Poky (Yocto Project Reference Distro) 1.8 imx6ulevk /dev/ttymxc0
imx6ulevk login:
Poky (Yocto Project Reference Distro) 1.8 imx6ulevk /dev/ttymxc0
imx6ulevk login:
Poky (Yocto Project Reference Distro) 1.8 imx6ulevk /dev/ttymxc0
imx6ulevk login: root
The behaviour you observe is the possible effect of the i.MX6UL silicon errata ERR009454 and ERR009455 that are present in the current Rev.1.0 silicon, refer to the i.MX6UL Chip Errata document for more information. Both these errata are scheduled to be fixed in the next Rev.1.1 silicon. Until then, use the i.MX6UL EVK board design as a reference. It contains the power managemet circuit and the MX6_POR_B signal, driven by the SW2102 button (refer to the board schematic), that allows to correctly reset the system and avoid the effect of the ERR009454 and ERR009455 silicon errata.
Have a great day,
Artur
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thank you for your advice!I Modify hardware design refer to the board schematic.
We test short the pad 3 to pad 7 of J1705.
It gets reset.
And we short the pad 3 to pad 7 and hold, then release the cpu is also hold and reboot till release.
The behavior is correct.
BTW, 6UL evk's hardware desing will make power down when doing the reset. It gives the i.MX6UL a clean initial status. Good for an embedded system.
Please follow the design,