iMX7d cpu1 issue

iMX7d cpu1 issue

[Ilya Ledvich]

Hi Shawn,
I'm working on Compulab CL-SOM-IMX7 device 
(http://www.compulab.co.il/products/computer-on-modules/cl-som-imx7-freescale-i-mx-7-system-on-module) 
based on Freescale iMX7d CPU.
I use the Freescale latest BSP imx_3.14.52_1.1.0_ga  and the Linux 
mainline v4.4-rc6 as a reference.
I observe an issue with bringing up the second CPU core. Briefly, the 
kernel can successfully boot only when CPU1 fails to come online.
In this case the boot log shows the following messages:
...
CPU1: failed to come online
Brought up 1 CPUs
SMP: Total of 1 processors activated (6.00 BogoMIPS).
...

Otherwise, the device tries to start kernel several times until the boot 
process eventually crashes. Please see attached logs for more details.
This never happens on mainline Linus kernel, because it never tries to 
bring up CPU1.
Unfortunately, we cannot verify this behavior on reference board cause 
we have no one.
Have you ever seen such behavior? Could you please advice something?
Kind regards,
Ilya.




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iMX7d cpu1 issue

[Shawn Guo]

On Tue, Feb 16, 2016 at 09:56:47AM +0200, Ilya Ledvich wrote:
> Hi Shawn,
> I'm working on Compulab CL-SOM-IMX7 device (http://www.compulab.co.il/products/computer-on-modules/cl-som-imx7-freescale-i-mx-7-system-on-module)
> based on Freescale iMX7d CPU.
> I use the Freescale latest BSP imx_3.14.52_1.1.0_ga  and the Linux
> mainline v4.4-rc6 as a reference.
> I observe an issue with bringing up the second CPU core. Briefly,
> the kernel can successfully boot only when CPU1 fails to come
> online.
> In this case the boot log shows the following messages:
> ...
> CPU1: failed to come online
> Brought up 1 CPUs
> SMP: Total of 1 processors activated (6.00 BogoMIPS).
> ...
> 
> Otherwise, the device tries to start kernel several times until the
> boot process eventually crashes. Please see attached logs for more
> details.
> This never happens on mainline Linus kernel, because it never tries
> to bring up CPU1.
> Unfortunately, we cannot verify this behavior on reference board
> cause we have no one.
> Have you ever seen such behavior? Could you please advice something?

I never played i.MX7D support on any real hardware.  I copied a couple
Freescale/NXP people here.  Let's see if you can get some help from
them.

Shawn

> Starting kernel ...
> 
> Uncompressing Linux... done, booting the kernel.
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096
> Kernel command line: console=ttymxc0,115200 earlyprintk=ttymxc0,115200 root=/dev/nfs ip=dhcp nfsroot=192.168.11.24:/home/ilya/work/rootfs/sid-minbase,v3,tcp rw rootwait
> PID hash table entries: 4096 (order: 2, 16384 bytes)
> Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
> Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
> Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata, 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem)
> Virtual kernel memory layout:
>     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
>     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
>     vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
>     lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
>     pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
>     modules : 0x7f000000 - 0x7fe00000   (  14 MB)
>       .text : 0x80008000 - 0x808b8880   (8899 kB)
>       .init : 0x808b9000 - 0x80919080   ( 385 kB)
>       .data : 0x8091a000 - 0x80972680   ( 354 kB)
>        .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
> Preemptible hierarchical RCU implementation.
>         RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
> RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
> NR_IRQS:16 nr_irqs:16 16
> Switching to timer-based delay loop
> sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
> Architected cp15 timer(s) running at 8.00MHz (phys).
> sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2147483648000ns
> Ignoring duplicate/late registration of read_current_timer delay
> 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: 2048 (order: 1, 8192 bytes)
> Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
> CPU: Testing write buffer coherency: ok
> /cpus/cpu at 0 missing clock-frequency property
> /cpus/cpu at 1 missing clock-frequency property
> CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
> Setting up static identity map for 0x80647850 - 0x806478a8
> Switching to timer-based delay loop
> Calibrating delay loop (skipped) already calibrated this CPU6.00 BogoMIPS (lpj=30000)
> sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
> Architected cp15 timer(s) running at 8.00MHz (phys).
> 2147483648000ns
> Current pid: 1 comm: swapper/0 / Idle pid: 0 comm: swapper/0
> Ignoring duplicate/late registra
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> CPU1: failed to come online
> 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 30340000.iomuxc-gpr: regmap [mem 0x30340000-0x3034ffff] registered
> syscon 30350000.ocotp-ctrl: regmap [mem 0x30350000-0x3035ffff] registered
> syscon 30360000.anatop: regmap [mem 0x30360000-0x3036ffff] registered
> vdd1p0d: 800 <--> 1200 mV at 1000 mV 
> vdd1p2: 1100 <--> 1300 mV 
> syscon 30390000.src: regmap [mem 0x30390000-0x3039ffff] registered
> DDR type is DDR3!
> failed to find ocotp node
> failed to find ocotp node
> hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
> hw-breakpoint: maximum watchpoint size is 8 bytes.
> imx7d-pinctrl 302c0000.iomuxc-lpsr: initialized IMX pinctrl driver
> imx7d-pinctrl 30330000.iomuxc: initialized IMX pinctrl driver
> MU is ready for cross core communication!
> bio: create slab <bio-0> at 0
> mxs-dma 33000000.dma-apbh: initialized
> usb_otg1_vbus: 5000 mV 
> fec1_phy_nreset: 3300 mV 
> platform regulator.15: Driver reg-fixed-voltage requests probe deferral
> tsc2046-reg: 3300 mV 
> platform regulator.17: Driver reg-fixed-voltage requests probe deferral
> platform lcd_nstby_3v3.18: Driver reg-fixed-voltage requests probe deferral
> SCSI subsystem initialized
> usbcore: registered new interface driver usbfs
> usbcore: registered new interface driver hub
> usbcore: registered new device driver usb
> usbphy_nop1.10 supply vcc not found, using dummy regulator
> usbphy_nop2.11 supply vcc not found, using dummy regulator
> i2c i2c-1: IMX I2C adapter registered
> i2c i2c-3: 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.
> Switched to clocksource arch_sys_counter
> cfg80211: Calling CRDA to update world regulatory domain
> NET: Registered protocol family 2
> TCP established hash table entries: 8192 (order: 3, 32768 bytes)
> TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
> TCP: Hash tables configured (established 8192 bind 8192)
> TCP: reno registered
> UDP hash table entries: 512 (order: 2, 16384 bytes)
> UDP-Lite hash table entries: 512 (order: 2, 16384 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: 512 (order: 3, 32768 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 2009
> io scheduler noop registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> backlight.20 supply power not found, using dummy regulator
> MIPI DSI driver module loaded
> 30730000.lcdif supply lcd not found, using dummy regulator
> mxsfb 30730000.lcdif: failed to find mxc display driver 
> Console: switching to colour frame buffer device 100x30
> mxsfb 30730000.lcdif: initialized
> imx-sdma 30bd0000.sdma: no event needs to be remapped
> imx-sdma 30bd0000.sdma: loaded firmware 4.1
> imx-sdma 30bd0000.sdma: initialized
> pfuze100-regulator 1-0008: Full layer: 1, Metal layer: 1
> pfuze100-regulator 1-0008: FAB: 0, FIN: 0
> pfuze100-regulator 1-0008: pfuze3000 found.
> SW1A: 700 <--> 3300 mV at 1100 mV 
> SW1B: 700 <--> 1475 mV at 1000 mV 
> SW2: 1500 <--> 1850 mV at 1800 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 1800 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 3300 mV 
> VLDO4: 1800 <--> 3300 mV at 3300 mV 
> Serial: IMX driver
> 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 58, base_baud = 1500000) is a IMX
> console [ttymxc0] enabled
> bootconsole [earlycon0] disabled
> 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
> at24 1-0050: 1024 byte 24c08 EEPROM, writable, 16 bytes/write
> m25p80 spi0.1: m25px16 (2048 Kbytes)
> 3 ofpart partitions found on MTD device spi0.1
> Creating 3 MTD partitions on "spi0.1":
> 0x000000000000-0x0000000c0000 : "uboot"
> 0x0000000c0000-0x000000100000 : "uboot environment"
> 0x000000100000-0x000000200000 : "splash"
> spi_imx 30820000.ecspi: probed
> 30be0000.ethernet supply phy not found, using dummy regulator
> pps pps0: new PPS source ptp0
> libphy: fec_enet_mii_bus: probed
> fec 30be0000.ethernet eth0: registered PHC device 0
> 30bf0000.ethernet supply phy not found, using dummy regulator
> pps pps1: new PPS source ptp1
> fec 30bf0000.ethernet (unregistered net_device): Invalid MAC address: 00:00:00:00:00:00
> fec 30bf0000.ethernet (unregistered net_device): Using random MAC address: c2:a3:b7:db:4d:b0
> fec 30bf0000.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
> 30b10200.usbmisc supply vbus-wakeup not found, using dummy regulator
> 30b20200.usbmisc supply vbus-wakeup not found, using dummy regulator
> 30b30200.usbmisc supply vbus-wakeup not found, using dummy regulator
> 30b20000.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
> imx_usb 30b30000.usb: Can't register ci_hdrc platform device, err=-517
> platform 30b30000.usb: Driver imx_usb requests probe deferral
> mousedev: PS/2 mouse device common for all mice
> input: 30370000.snvs-pwrkey as /devices/soc.3/30000000.aips-bus/30370000.snvs-pwrkey/input/input0
> snvs_pwrkey 30370000.snvs-pwrkey: i.MX snvs powerkey probed
> rtc-em3027 1-0056: rtc core: registered rtc-em3027 as rtc0
> snvs_rtc 30370034.snvs-rtc-lp: rtc core: registered 30370034.snvs-rtc-l as rtc1
> 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
> imx2-wdt 30280000.wdog: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=0)
> sdhci: Secure Digital Host Controller Interface driver
> sdhci: Copyright(c) Pierre Ossman
> sdhci-pltfm: SDHCI platform and OF driver helper
> sdhci-esdhc-imx 30b40000.usdhc: could not get ultra high speed state, work on normal mode
> mmc0: no vqmmc regulator found
> mmc0: no vmmc regulator found
> mmc0: SDHCI controller on 30b40000.usdhc [30b40000.usdhc] using ADMA
> sdhci-esdhc-imx 30b60000.usdhc: could not get ultra high speed state, work on normal mode
> mmc2: no vqmmc regulator found
> mmc2: no vmmc regulator found
> mmc0: new high speed SDHC card at address e624
> mmc2: SDHCI controller on 30b60000.usdhc [30b60000.usdhc] using ADMA
> mmcblk0: mmc0:e624 SS08G 7.40 GiB 
> usbcore: registered new interface driver usbhid
> usbhid: USB HID core driver
>  mmcblk0: unknown partition table
> TCP: cubic registered
> NET: Registered protocol family 10
> sit: IPv6 over IPv4 tunneling driver
> NET: Registered protocol family 17
> Key type dns_resolver registered
> usb 1-1: new high-speed USB device number 2 using ci_hdrc
> Registering SWP/SWPB emulation handler
> SWBST: disabling
> usb_otg1_vbus: disabling
> regulator-dummy: disabling
> imx mcc test is registered.
> fec2_phy_nreset: 3300 mV 
> usb_host_nreset: 3300 mV 
> lcd_nstby_3v3: no parameters
> ci_hdrc ci_hdrc.2: EHCI Host Controller
> ci_hdrc ci_hdrc.2: new USB bus registered, assigned bus number 2
> mmc2: BKOPS_EN bit is not set
> mmc2: new high speed DDR MMC card at address 0001
> mmcblk2: mmc2:0001 SEM04G 3.68 GiB 
> mmcblk2boot0: mmc2:0001 SEM04G partition 1 2.00 MiB
> mmcblk2boot1: mmc2:0001 SEM04G partition 2 2.00 MiB
> mmcblk2rpmb: mmc2:0001 SEM04G partition 3 2.00 MiB
>  mmcblk2: unknown partition table
>  mmcblk2boot1: unknown partition table
>  mmcblk2boot0: unknown partition table
> ci_hdrc ci_hdrc.2: USB 2.0 started, EHCI 1.00
> hub 2-0:1.0: USB hub found
> hub 2-0:1.0: 1 port detected
> Number of LUNs=8
> Mass Storage Function, version: 2009/09/11
> LUN: removable file: (no medium)
> usb-storage 1-1:1.0: USB Mass Storage device detected
> scsi0 : usb-storage 1-1:1.0
> Number of LUNs=1
> no file given for LUN0
> g_mass_storage ci_hdrc.0: failed to start g_mass_storage: -22
> rtc-em3027 1-0056: setting system clock to 2016-02-16 07:32:51 UTC (1455607971)
> fec 30be0000.ethernet eth0: Freescale FEC PHY driver [Atheros 8031 ethernet] (mii_bus:phy_addr=30be0000.etherne:00, irq=-1)
> IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
> fec 30bf0000.ethernet eth1: Freescale FEC PHY driver [Atheros 8031 ethernet] (mii_bus:phy_addr=30be0000.etherne:01, irq=-1)
> usb 2-1: new high-speed USB device number 2 using ci_hdrc
> IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
> hub 2-1:1.0: USB hub found
> hub 2-1:1.0: 3 ports detected
> scsi 0:0:0:0: Direct-Access     SanDisk  Cruzer Slice     1.14 PQ: 0 ANSI: 2
> sd 0:0:0:0: [sda] 15633408 512-byte logical blocks: (8.00 GB/7.45 GiB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] No Caching mode page found
> sd 0:0:0:0: [sda] Assuming drive cache: write through
> sd 0:0:0:0: [sda] No Caching mode page found
> sd 0:0:0:0: [sda] Assuming drive cache: write through
>  sda: unknown partition table
> sd 0:0:0:0: [sda] No Caching mode page found
> sd 0:0:0:0: [sda] Assuming drive cache: write through
> sd 0:0:0:0: [sda] Attached SCSI removable disk
> libphy: 30be0000.etherne:00 - Link is Up - 1000/Full
> IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
> Sending DHCP requests ., OK
> IP-Config: Got DHCP answer from 10.1.1.240, my address is 192.168.27.43
> IP-Config: Complete:
>      device=eth0, hwaddr=00:01:c0:1a:e9:13, ipaddr=192.168.27.43, mask=255.255.0.0, gw=192.168.0.110
>      host=192.168.27.43, domain=compulab.local, nis-domain=(none)
>      bootserver=10.1.1.247, rootserver=192.168.11.24, rootpath=
>      nameserver0=192.168.10.13, nameserver1=10.1.1.247
> ALSA device list:
>   No soundcards found.
> VFS: Mounted root (nfs filesystem) on device 0:13.
> devtmpfs: mounted
> Freeing unused kernel memory: 384K (808b9000 - 80919000)
> random: systemd urandom read with 58 bits of entropy available
> systemd[1]: systemd 228 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN)
> systemd[1]: Detected architecture arm.
> 
> Welcome to Debian GNU/Linux stretch/sid!
> 

> Starting kernel ...
> 
> Uncompressing Linux... done, booting the kernel.
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096
> Kernel command line: console=ttymxc0,115200 earlyprintk=ttymxc0,115200 root=/dev/nfs ip=dhcp nfsroot=192.168.11.24:/home/ilya/work/rootfs/sid-minbase,v3,tcp rw rootwait
> PID hash table entries: 4096 (order: 2, 16384 bytes)
> Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
> Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
> Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata, 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem)
> Virtual kernel memory layout:
>     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
>     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
>     vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
>     lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
>     pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
>     modules : 0x7f000000 - 0x7fe00000   (  14 MB)
>       .text : 0x80008000 - 0x808b8880   (8899 kB)
>       .init : 0x808b9000 - 0x80919080   ( 385 kB)
>       .data : 0x8091a000 - 0x80972680   ( 354 kB)
>        .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
> Preemptible hierarchical RCU implementation.
>         RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
> RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
> NR_IRQS:16 nr_irqs:16 16
> Switching to timer-based delay loop
> sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
> Architected cp15 timer(s) running at 8.00MHz (phys).
> sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2147483648000ns
> Ignoring duplicate/late registration of read_current_timer delay
> 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: 2048 (order: 1, 8192 bytes)
> Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
> CPU: Testing write buffer coherency: ok
> /cpus/cpu at 0 missing clock-frequency property
> /cpus/cpu at 1 missing clock-frequency property
> CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
> Setting up static identity map for 0x80647850 - 0x806478a8
> Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata, 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem)
> Virtual kernel memory layout:
>     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
>     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
>     vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
>     lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
>     pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
>     modules : 0x7f000000 - 0x7fe00000   (  14 MB)
>       .text : 0x80008000 - 0x808b8880   (8899 kB)
>       .init : 0x808b9000 - 0x80919080   ( 385 kB)
>       .data : 0x8091a000 - 0x80972680   ( 354 kB)
>        .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
> Preemptible hierarchical RCU implementation.
>         RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
> RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
> Calibrating delay loop (skipped) already calibrated this CPU6.00 BogoMIPS (lpj=30000)
> NR_IRQS:16 nr_irqs:16 16
> Switching to timer-based delay loop
> sched_clock: 32 bits at 3000kHz,
> [000001d8] *pgd=00000000
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> Modules linked in:
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> [00000008] *pgd=00000000
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
> Modules linked in:
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> [00000000] *pgd=00000000
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> Modules linked in:
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> [00000000] *pgd=00000000
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> Modules linked in:
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> [00000000] *pgd=00000000
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> Modules linked in:
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> nPU: PIPT / VIPT nonaliasing data cacCPhUe1,:  VfIaPiTl ealdia stion gc oimnes tornulctiinoe
>  Braoucghhet
> m 1Ma chCiPnUes 
> seSMlP::  CToomtaplu Loafb  S1B C-pirMoXc7es
> asbo oatcctoivnastoelde  (6[.0e0a rBloygcooMnI0P]S )e.n
> AClPeU:d 
> 0c mCaP: UC(MsA:)  rsetsaerrtveedd  i3n20  SMViCB m oadte .ac
> 0000
> cheemvotrmyp fpso:l iciyn:it iDaaltiaz ecda
>  writealloc
> On node 0 totalpages: 262144
> aree_area_init_nVFoPde :s unpopdoer t0,  pvg0d.a3t:  80i9m71p1l0e0m,e nntoord 4e1_ meamr_chmitaepc taubr7e5 9200 0p
> p 3  0D MvAa rzioannet :7  r2e0v4 85 
> tes uspeidn cftorlr c ormee:m mianpi
> i a lDiMzAe dz opnie:n c0t rpalge s sruebsseyrsvteedm
> 
> h DMAre guzloanteo:r -2d62u14m4m yp:a gneos ,p aLrIaFmOe tebrastc
> 31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Binux version 3.14.52+ (ilya at ilya-pc) NE(Tg:c cR evgeirssiotne r4e.d 7pr.o2t (oScoolu fracmeirlyy  C1o6de
> nch Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410DMfAc:0 7p5r]e arlelvoicsaitoend  52 5(6A RKMivB7 )p,o olc rf=1o0rc 5a3to8mi7cd 
> ahCPeU:r PeInPt Ta l/ lVoIcaPtTi noonns
> iasing datacp uciadclhee:,  uVsIPiTn g agloivaesirngn oir nlsatrducdteiro
> : cpauicdhlee
> mpMnagc hignoev emrnoodrel :m enCuo
>  abUs eS BWCD-iOMXG71
>   rbeosoettc osnosuorlcee
> [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> pysOcno nno d3e0 304 0t0o0t0.ailopmaugxecs-:g p2r6:2 r1eg4m4a
> 11freeme _0axr3ea0_3i40n0i0t_0no-d0ex3:0 3no4dfef f0f, ]p grdeagti s8t0er9ed7
> c, snyosdcoen_ m3e0m3_50m0a0p0 .aobc7o5t90p00-
> el  :DM Ar ezgomanpe :[ m2e0m48  0pxa3g0e3s50 00u0s-ed0 xf3o0r3 5mfefmffm]a pr
> o s teDrMeA dz
> : 0 pagseyss croesne r3v0e3d6
> 6f  0D.MaAn zaonteo:p:  2r6e2g1m4a4p  pa[gmeesm, 0 xL3I03F6O0 0b0a0t-c0hx:33013
> ffPE]R CrePgiUs:t eErmbeedd
> d1 8 pvdad1gp0eds:/ c8p0u0  @<a-b-7>3 1520000 0m Vs 8a3t2 01 0r080 1m9V2  
> 056 vdud13p22:7 61810
> x--B>o o1ti3n0g0  mLVin u
> 30 physical CPUsy sc0oxn0 
>  0L0i0n0ux. svrecr:si orne g3m.a1p4 .[m5em2 +0 x(3i0l39y0a0 at i0l0y-a0-xp3c0)3 9f(fgfccf ]v reergsiiosnt e4r.e7.d2
> 9ourcery CodeDBDeRn cthy pLei itse  2D0D1R23.!0
> -64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> sPU: ARMv7 Profacileesdso rt o[ 4f1i0nfdc 0o7c5o]tp  nroedvei
> ofna i5l e(dAR Mtvo 7fi)n,d  corc=o1t0pc 5n38o7dd
> e
> ghUw: -PbIrPeTa k/p oViInPt:T f ounnodn a5l i(a+s1i nrge sdeartvae dc)a cbhree,a kVIpPTo ianltia sianngd  in4s twartucchtpiooinn tc archee
>  mtaecrhsi.ne
> mhewl:- bCroemakppouiLnabt S:B Cm-aixMiXm7u
> etcbhopooticnotn ssoilzee  [eiarsl y8c onb0]y teensab.l
>  d
> 0ma: CMA: reserviemdx 73d2-0p iMnicBt ralt  3a0c20c00000000
> dMoemmuoxrc-yl ppsorl:i icniyt:i Daaltizae dca chIeM X wpriintceatlrlloc 
> noOenr 
> 0 0 tiomtxa7ldp-apgiensc:t r2l6 320134340
>  .frieoem_uarxeac_:i inniitt_inoadlei: zneodd eI M0X,  ppigndcatt r8l0 9dr7i1v1e0r0,
> ode_mem_map ab759000
>   DMUM iAs  zroenaed:y  2f0o4r 8c rpoasgse sc oursee dco mfmourn imceatmimoanp!
> 
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> tooting biLoi:n ucxr eaotne p hsylasbi ca<l bCiPoU- 00>x 0a
> 0 
> 2ux version 3.14.52+ (ilya at ilya-pc) (gcc vmexrss-idomna  43.37.020 00(0S0ou.rcdemray- aCpobdhe:B einnitciha Lliitzeed 
> b2.09-64) us)b _#ot8g 1SM_P vPbRuEsE: M5P0T 0M0o mnV  Fe
> 35 1f4e:c51_5p:h0y8_n rIeSTs e2t:0 136
> 0 m[0V00 0
> 04]pl a*tpgfd=o0r0m 0r0e0g0u0l0at
> =1.P1U5::  DArRMiv7v ePrr orecg-efsisoxre d-[v4o10lftcag0e 7r5e]q ureevisstis opnr 5o (bAeR Mdve7f)e,r raclr
> 453t8s7cd20
> IreCPgU::  P3I3P00T m V/  V
> T plnaotnfaolrima srienggu ldaattoar .c1a7c:h Der,i VvIePrT  reag-lfiiasxiend-gvo litnasgter urcetiqounes tcsa cpher
> liM odedfuelrerasl 
> rpleadt ifn:o
> - lMcadc_hinnsetb y_m3ovde3l.:18 :C omDpruivLera br eSgBC--ifMiXxe7d
> bboolottacgeo rnesqoulees [tesa rplroybec odn0e]f ereranla
> ed
> 0ma: CMASC:S Ir esusbesryvsedt 3e2m0 i nMiitBi aalti zace0d0
> 00
> ieusmbcoorrye :p orleigciys:te rDeatda  necwa chien twerritfeaaclel odcr
>  r Ouns bnofdse
> etoustbaclopraeg:e sr:e g2i6s2t1e4r4
>  nefrwe ei_natreear_fianciet _dnordiev:e rn ohdeu b0
> vpusgbdcato r8e0:97 11r0e0g,i stneordee_dm emn_emwa pd eabv7i5c9e0 d0r0i
> r   uDMsAb 
> oneus:bp h2y0_4n8o pp1.a1g0es  suuspepdl yf ovrc cm enmmoatp f
> dd  ,DM Au siznogn ed: u0m mpayg erse gruelsaetrovre
> 
> nsb  pDMhA yz_onnoep:2 .21612 1s44u ppplayg evsc,c  LnIoFOt  bfaotuncdh,: u3s1i
> edPuEmmRyC PrUeg:u lEamtbeodrd
>  8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>   DMA zone: 2048 pages used for memmap
>   DMA zone: 0 pages reserved
>   DMA zone: 262144 pages, LIFO batch:31
> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Booting Linux on physical CPU 0x0
> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> Machine model: CompuLab SBC-iMX7
> bootconsole [earlycon0] enabled
> cma: CMA: reserved 320 MiB at ac000000
> Memory policy: Data cache writealloc
> On node 0 totalpages: 262144
> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> [00000000] *pgd=00000000
>   DMA zone: 2048 pages used for memmap
> 

iMX7d cpu1 issue

[Yongcai Huang]

Hi, llya
        Can you paste the code piece of enabling CPU1 in src.c? I remembered I met similar issue during bring up SMP on MX7D, but it was 1 year ago, I did NOT remembered the detail now. I suspect something wrong in SRC register setting.

>From Anson's iPhone 6


> ? 2016?2?18??22:10?Shawn Guo <shawnguo@kernel.org> ???
> 
>> On Tue, Feb 16, 2016 at 09:56:47AM +0200, Ilya Ledvich wrote:
>> Hi Shawn,
>> I'm working on Compulab CL-SOM-IMX7 device (http://www.compulab.co.il/products/computer-on-modules/cl-som-imx7-freescale-i-mx-7-system-on-module)
>> based on Freescale iMX7d CPU.
>> I use the Freescale latest BSP imx_3.14.52_1.1.0_ga  and the Linux
>> mainline v4.4-rc6 as a reference.
>> I observe an issue with bringing up the second CPU core. Briefly,
>> the kernel can successfully boot only when CPU1 fails to come
>> online.
>> In this case the boot log shows the following messages:
>> ...
>> CPU1: failed to come online
>> Brought up 1 CPUs
>> SMP: Total of 1 processors activated (6.00 BogoMIPS).
>> ...
>> 
>> Otherwise, the device tries to start kernel several times until the
>> boot process eventually crashes. Please see attached logs for more
>> details.
>> This never happens on mainline Linus kernel, because it never tries
>> to bring up CPU1.
>> Unfortunately, we cannot verify this behavior on reference board
>> cause we have no one.
>> Have you ever seen such behavior? Could you please advice something?
> 
> I never played i.MX7D support on any real hardware.  I copied a couple
> Freescale/NXP people here.  Let's see if you can get some help from
> them.
> 
> Shawn
> 
>> Starting kernel ...
>> 
>> Uncompressing Linux... done, booting the kernel.
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096
>> Kernel command line: console=ttymxc0,115200 earlyprintk=ttymxc0,115200 root=/dev/nfs ip=dhcp nfsroot=192.168.11.24:/home/ilya/work/rootfs/sid-minbase,v3,tcp rw rootwait
>> PID hash table entries: 4096 (order: 2, 16384 bytes)
>> Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
>> Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
>> Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata, 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem)
>> Virtual kernel memory layout:
>>    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
>>    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
>>    vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
>>    lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
>>    pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
>>    modules : 0x7f000000 - 0x7fe00000   (  14 MB)
>>      .text : 0x80008000 - 0x808b8880   (8899 kB)
>>      .init : 0x808b9000 - 0x80919080   ( 385 kB)
>>      .data : 0x8091a000 - 0x80972680   ( 354 kB)
>>       .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
>> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
>> Preemptible hierarchical RCU implementation.
>>        RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
>> RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
>> NR_IRQS:16 nr_irqs:16 16
>> Switching to timer-based delay loop
>> sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
>> Architected cp15 timer(s) running at 8.00MHz (phys).
>> sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2147483648000ns
>> Ignoring duplicate/late registration of read_current_timer delay
>> 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: 2048 (order: 1, 8192 bytes)
>> Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
>> CPU: Testing write buffer coherency: ok
>> /cpus/cpu at 0 missing clock-frequency property
>> /cpus/cpu at 1 missing clock-frequency property
>> CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
>> Setting up static identity map for 0x80647850 - 0x806478a8
>> Switching to timer-based delay loop
>> Calibrating delay loop (skipped) already calibrated this CPU6.00 BogoMIPS (lpj=30000)
>> sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
>> Architected cp15 timer(s) running at 8.00MHz (phys).
>> 2147483648000ns
>> Current pid: 1 comm: swapper/0 / Idle pid: 0 comm: swapper/0
>> Ignoring duplicate/late registra
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> CPU1: failed to come online
>> 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 30340000.iomuxc-gpr: regmap [mem 0x30340000-0x3034ffff] registered
>> syscon 30350000.ocotp-ctrl: regmap [mem 0x30350000-0x3035ffff] registered
>> syscon 30360000.anatop: regmap [mem 0x30360000-0x3036ffff] registered
>> vdd1p0d: 800 <--> 1200 mV at 1000 mV 
>> vdd1p2: 1100 <--> 1300 mV 
>> syscon 30390000.src: regmap [mem 0x30390000-0x3039ffff] registered
>> DDR type is DDR3!
>> failed to find ocotp node
>> failed to find ocotp node
>> hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
>> hw-breakpoint: maximum watchpoint size is 8 bytes.
>> imx7d-pinctrl 302c0000.iomuxc-lpsr: initialized IMX pinctrl driver
>> imx7d-pinctrl 30330000.iomuxc: initialized IMX pinctrl driver
>> MU is ready for cross core communication!
>> bio: create slab <bio-0> at 0
>> mxs-dma 33000000.dma-apbh: initialized
>> usb_otg1_vbus: 5000 mV 
>> fec1_phy_nreset: 3300 mV 
>> platform regulator.15: Driver reg-fixed-voltage requests probe deferral
>> tsc2046-reg: 3300 mV 
>> platform regulator.17: Driver reg-fixed-voltage requests probe deferral
>> platform lcd_nstby_3v3.18: Driver reg-fixed-voltage requests probe deferral
>> SCSI subsystem initialized
>> usbcore: registered new interface driver usbfs
>> usbcore: registered new interface driver hub
>> usbcore: registered new device driver usb
>> usbphy_nop1.10 supply vcc not found, using dummy regulator
>> usbphy_nop2.11 supply vcc not found, using dummy regulator
>> i2c i2c-1: IMX I2C adapter registered
>> i2c i2c-3: 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.
>> Switched to clocksource arch_sys_counter
>> cfg80211: Calling CRDA to update world regulatory domain
>> NET: Registered protocol family 2
>> TCP established hash table entries: 8192 (order: 3, 32768 bytes)
>> TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
>> TCP: Hash tables configured (established 8192 bind 8192)
>> TCP: reno registered
>> UDP hash table entries: 512 (order: 2, 16384 bytes)
>> UDP-Lite hash table entries: 512 (order: 2, 16384 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: 512 (order: 3, 32768 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 2009
>> io scheduler noop registered
>> io scheduler deadline registered
>> io scheduler cfq registered (default)
>> backlight.20 supply power not found, using dummy regulator
>> MIPI DSI driver module loaded
>> 30730000.lcdif supply lcd not found, using dummy regulator
>> mxsfb 30730000.lcdif: failed to find mxc display driver 
>> Console: switching to colour frame buffer device 100x30
>> mxsfb 30730000.lcdif: initialized
>> imx-sdma 30bd0000.sdma: no event needs to be remapped
>> imx-sdma 30bd0000.sdma: loaded firmware 4.1
>> imx-sdma 30bd0000.sdma: initialized
>> pfuze100-regulator 1-0008: Full layer: 1, Metal layer: 1
>> pfuze100-regulator 1-0008: FAB: 0, FIN: 0
>> pfuze100-regulator 1-0008: pfuze3000 found.
>> SW1A: 700 <--> 3300 mV at 1100 mV 
>> SW1B: 700 <--> 1475 mV at 1000 mV 
>> SW2: 1500 <--> 1850 mV at 1800 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 1800 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 3300 mV 
>> VLDO4: 1800 <--> 3300 mV at 3300 mV 
>> Serial: IMX driver
>> 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 58, base_baud = 1500000) is a IMX
>> console [ttymxc0] enabled
>> bootconsole [earlycon0] disabled
>> 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
>> at24 1-0050: 1024 byte 24c08 EEPROM, writable, 16 bytes/write
>> m25p80 spi0.1: m25px16 (2048 Kbytes)
>> 3 ofpart partitions found on MTD device spi0.1
>> Creating 3 MTD partitions on "spi0.1":
>> 0x000000000000-0x0000000c0000 : "uboot"
>> 0x0000000c0000-0x000000100000 : "uboot environment"
>> 0x000000100000-0x000000200000 : "splash"
>> spi_imx 30820000.ecspi: probed
>> 30be0000.ethernet supply phy not found, using dummy regulator
>> pps pps0: new PPS source ptp0
>> libphy: fec_enet_mii_bus: probed
>> fec 30be0000.ethernet eth0: registered PHC device 0
>> 30bf0000.ethernet supply phy not found, using dummy regulator
>> pps pps1: new PPS source ptp1
>> fec 30bf0000.ethernet (unregistered net_device): Invalid MAC address: 00:00:00:00:00:00
>> fec 30bf0000.ethernet (unregistered net_device): Using random MAC address: c2:a3:b7:db:4d:b0
>> fec 30bf0000.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
>> 30b10200.usbmisc supply vbus-wakeup not found, using dummy regulator
>> 30b20200.usbmisc supply vbus-wakeup not found, using dummy regulator
>> 30b30200.usbmisc supply vbus-wakeup not found, using dummy regulator
>> 30b20000.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
>> imx_usb 30b30000.usb: Can't register ci_hdrc platform device, err=-517
>> platform 30b30000.usb: Driver imx_usb requests probe deferral
>> mousedev: PS/2 mouse device common for all mice
>> input: 30370000.snvs-pwrkey as /devices/soc.3/30000000.aips-bus/30370000.snvs-pwrkey/input/input0
>> snvs_pwrkey 30370000.snvs-pwrkey: i.MX snvs powerkey probed
>> rtc-em3027 1-0056: rtc core: registered rtc-em3027 as rtc0
>> snvs_rtc 30370034.snvs-rtc-lp: rtc core: registered 30370034.snvs-rtc-l as rtc1
>> 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
>> imx2-wdt 30280000.wdog: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=0)
>> sdhci: Secure Digital Host Controller Interface driver
>> sdhci: Copyright(c) Pierre Ossman
>> sdhci-pltfm: SDHCI platform and OF driver helper
>> sdhci-esdhc-imx 30b40000.usdhc: could not get ultra high speed state, work on normal mode
>> mmc0: no vqmmc regulator found
>> mmc0: no vmmc regulator found
>> mmc0: SDHCI controller on 30b40000.usdhc [30b40000.usdhc] using ADMA
>> sdhci-esdhc-imx 30b60000.usdhc: could not get ultra high speed state, work on normal mode
>> mmc2: no vqmmc regulator found
>> mmc2: no vmmc regulator found
>> mmc0: new high speed SDHC card at address e624
>> mmc2: SDHCI controller on 30b60000.usdhc [30b60000.usdhc] using ADMA
>> mmcblk0: mmc0:e624 SS08G 7.40 GiB 
>> usbcore: registered new interface driver usbhid
>> usbhid: USB HID core driver
>> mmcblk0: unknown partition table
>> TCP: cubic registered
>> NET: Registered protocol family 10
>> sit: IPv6 over IPv4 tunneling driver
>> NET: Registered protocol family 17
>> Key type dns_resolver registered
>> usb 1-1: new high-speed USB device number 2 using ci_hdrc
>> Registering SWP/SWPB emulation handler
>> SWBST: disabling
>> usb_otg1_vbus: disabling
>> regulator-dummy: disabling
>> imx mcc test is registered.
>> fec2_phy_nreset: 3300 mV 
>> usb_host_nreset: 3300 mV 
>> lcd_nstby_3v3: no parameters
>> ci_hdrc ci_hdrc.2: EHCI Host Controller
>> ci_hdrc ci_hdrc.2: new USB bus registered, assigned bus number 2
>> mmc2: BKOPS_EN bit is not set
>> mmc2: new high speed DDR MMC card at address 0001
>> mmcblk2: mmc2:0001 SEM04G 3.68 GiB 
>> mmcblk2boot0: mmc2:0001 SEM04G partition 1 2.00 MiB
>> mmcblk2boot1: mmc2:0001 SEM04G partition 2 2.00 MiB
>> mmcblk2rpmb: mmc2:0001 SEM04G partition 3 2.00 MiB
>> mmcblk2: unknown partition table
>> mmcblk2boot1: unknown partition table
>> mmcblk2boot0: unknown partition table
>> ci_hdrc ci_hdrc.2: USB 2.0 started, EHCI 1.00
>> hub 2-0:1.0: USB hub found
>> hub 2-0:1.0: 1 port detected
>> Number of LUNs=8
>> Mass Storage Function, version: 2009/09/11
>> LUN: removable file: (no medium)
>> usb-storage 1-1:1.0: USB Mass Storage device detected
>> scsi0 : usb-storage 1-1:1.0
>> Number of LUNs=1
>> no file given for LUN0
>> g_mass_storage ci_hdrc.0: failed to start g_mass_storage: -22
>> rtc-em3027 1-0056: setting system clock to 2016-02-16 07:32:51 UTC (1455607971)
>> fec 30be0000.ethernet eth0: Freescale FEC PHY driver [Atheros 8031 ethernet] (mii_bus:phy_addr=30be0000.etherne:00, irq=-1)
>> IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
>> fec 30bf0000.ethernet eth1: Freescale FEC PHY driver [Atheros 8031 ethernet] (mii_bus:phy_addr=30be0000.etherne:01, irq=-1)
>> usb 2-1: new high-speed USB device number 2 using ci_hdrc
>> IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
>> hub 2-1:1.0: USB hub found
>> hub 2-1:1.0: 3 ports detected
>> scsi 0:0:0:0: Direct-Access     SanDisk  Cruzer Slice     1.14 PQ: 0 ANSI: 2
>> sd 0:0:0:0: [sda] 15633408 512-byte logical blocks: (8.00 GB/7.45 GiB)
>> sd 0:0:0:0: [sda] Write Protect is off
>> sd 0:0:0:0: [sda] No Caching mode page found
>> sd 0:0:0:0: [sda] Assuming drive cache: write through
>> sd 0:0:0:0: [sda] No Caching mode page found
>> sd 0:0:0:0: [sda] Assuming drive cache: write through
>> sda: unknown partition table
>> sd 0:0:0:0: [sda] No Caching mode page found
>> sd 0:0:0:0: [sda] Assuming drive cache: write through
>> sd 0:0:0:0: [sda] Attached SCSI removable disk
>> libphy: 30be0000.etherne:00 - Link is Up - 1000/Full
>> IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
>> Sending DHCP requests ., OK
>> IP-Config: Got DHCP answer from 10.1.1.240, my address is 192.168.27.43
>> IP-Config: Complete:
>>     device=eth0, hwaddr=00:01:c0:1a:e9:13, ipaddr=192.168.27.43, mask=255.255.0.0, gw=192.168.0.110
>>     host=192.168.27.43, domain=compulab.local, nis-domain=(none)
>>     bootserver=10.1.1.247, rootserver=192.168.11.24, rootpath=
>>     nameserver0=192.168.10.13, nameserver1=10.1.1.247
>> ALSA device list:
>>  No soundcards found.
>> VFS: Mounted root (nfs filesystem) on device 0:13.
>> devtmpfs: mounted
>> Freeing unused kernel memory: 384K (808b9000 - 80919000)
>> random: systemd urandom read with 58 bits of entropy available
>> systemd[1]: systemd 228 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN)
>> systemd[1]: Detected architecture arm.
>> 
>> Welcome to Debian GNU/Linux stretch/sid!
> 
>> Starting kernel ...
>> 
>> Uncompressing Linux... done, booting the kernel.
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096
>> Kernel command line: console=ttymxc0,115200 earlyprintk=ttymxc0,115200 root=/dev/nfs ip=dhcp nfsroot=192.168.11.24:/home/ilya/work/rootfs/sid-minbase,v3,tcp rw rootwait
>> PID hash table entries: 4096 (order: 2, 16384 bytes)
>> Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
>> Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
>> Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata, 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem)
>> Virtual kernel memory layout:
>>    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
>>    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
>>    vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
>>    lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
>>    pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
>>    modules : 0x7f000000 - 0x7fe00000   (  14 MB)
>>      .text : 0x80008000 - 0x808b8880   (8899 kB)
>>      .init : 0x808b9000 - 0x80919080   ( 385 kB)
>>      .data : 0x8091a000 - 0x80972680   ( 354 kB)
>>       .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
>> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
>> Preemptible hierarchical RCU implementation.
>>        RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
>> RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
>> NR_IRQS:16 nr_irqs:16 16
>> Switching to timer-based delay loop
>> sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
>> Architected cp15 timer(s) running at 8.00MHz (phys).
>> sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2147483648000ns
>> Ignoring duplicate/late registration of read_current_timer delay
>> 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: 2048 (order: 1, 8192 bytes)
>> Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
>> CPU: Testing write buffer coherency: ok
>> /cpus/cpu at 0 missing clock-frequency property
>> /cpus/cpu at 1 missing clock-frequency property
>> CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
>> Setting up static identity map for 0x80647850 - 0x806478a8
>> Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata, 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem)
>> Virtual kernel memory layout:
>>    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
>>    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
>>    vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
>>    lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
>>    pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
>>    modules : 0x7f000000 - 0x7fe00000   (  14 MB)
>>      .text : 0x80008000 - 0x808b8880   (8899 kB)
>>      .init : 0x808b9000 - 0x80919080   ( 385 kB)
>>      .data : 0x8091a000 - 0x80972680   ( 354 kB)
>>       .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
>> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
>> Preemptible hierarchical RCU implementation.
>>        RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
>> RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
>> Calibrating delay loop (skipped) already calibrated this CPU6.00 BogoMIPS (lpj=30000)
>> NR_IRQS:16 nr_irqs:16 16
>> Switching to timer-based delay loop
>> sched_clock: 32 bits at 3000kHz,
>> [000001d8] *pgd=00000000
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> Modules linked in:
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> [00000008] *pgd=00000000
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>> Modules linked in:
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> [00000000] *pgd=00000000
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> Modules linked in:
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> [00000000] *pgd=00000000
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> Modules linked in:
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> [00000000] *pgd=00000000
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> Modules linked in:
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> nPU: PIPT / VIPT nonaliasing data cacCPhUe1,:  VfIaPiTl ealdia stion gc oimnes tornulctiinoe
>> Braoucghhet
>> m 1Ma chCiPnUes 
>> seSMlP::  CToomtaplu Loafb  S1B C-pirMoXc7es
>> asbo oatcctoivnastoelde  (6[.0e0a rBloygcooMnI0P]S )e.n
>> AClPeU:d 
>> 0c mCaP: UC(MsA:)  rsetsaerrtveedd  i3n20  SMViCB m oadte .ac
>> 0000
>> cheemvotrmyp fpso:l iciyn:it iDaaltiaz ecda
>> writealloc
>> On node 0 totalpages: 262144
>> aree_area_init_nVFoPde :s unpopdoer t0,  pvg0d.a3t:  80i9m71p1l0e0m,e nntoord 4e1_ meamr_chmitaepc taubr7e5 9200 0p
>> p 3  0D MvAa rzioannet :7  r2e0v4 85 
>> tes uspeidn cftorlr c ormee:m mianpi
>> i a lDiMzAe dz opnie:n c0t rpalge s sruebsseyrsvteedm
>> 
>> h DMAre guzloanteo:r -2d62u14m4m yp:a gneos ,p aLrIaFmOe tebrastc
>> 31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Binux version 3.14.52+ (ilya at ilya-pc) NE(Tg:c cR evgeirssiotne r4e.d 7pr.o2t (oScoolu fracmeirlyy  C1o6de
>> nch Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410DMfAc:0 7p5r]e arlelvoicsaitoend  52 5(6A RKMivB7 )p,o olc rf=1o0rc 5a3to8mi7cd 
>> ahCPeU:r PeInPt Ta l/ lVoIcaPtTi noonns
>> iasing datacp uciadclhee:,  uVsIPiTn g agloivaesirngn oir nlsatrducdteiro
>> : cpauicdhlee
>> mpMnagc hignoev emrnoodrel :m enCuo
>> abUs eS BWCD-iOMXG71
>>  rbeosoettc osnosuorlcee
>> [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> pysOcno nno d3e0 304 0t0o0t0.ailopmaugxecs-:g p2r6:2 r1eg4m4a
>> 11freeme _0axr3ea0_3i40n0i0t_0no-d0ex3:0 3no4dfef f0f, ]p grdeagti s8t0er9ed7
>> c, snyosdcoen_ m3e0m3_50m0a0p0 .aobc7o5t90p00-
>> el  :DM Ar ezgomanpe :[ m2e0m48  0pxa3g0e3s50 00u0s-ed0 xf3o0r3 5mfefmffm]a pr
>> o s teDrMeA dz
>> : 0 pagseyss croesne r3v0e3d6
>> 6f  0D.MaAn zaonteo:p:  2r6e2g1m4a4p  pa[gmeesm, 0 xL3I03F6O0 0b0a0t-c0hx:33013
>> ffPE]R CrePgiUs:t eErmbeedd
>> d1 8 pvdad1gp0eds:/ c8p0u0  @<a-b-7>3 1520000 0m Vs 8a3t2 01 0r080 1m9V2  
>> 056 vdud13p22:7 61810
>> x--B>o o1ti3n0g0  mLVin u
>> 30 physical CPUsy sc0oxn0 
>> 0L0i0n0ux. svrecr:si orne g3m.a1p4 .[m5em2 +0 x(3i0l39y0a0 at i0l0y-a0-xp3c0)3 9f(fgfccf ]v reergsiiosnt e4r.e7.d2
>> 9ourcery CodeDBDeRn cthy pLei itse  2D0D1R23.!0
>> -64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> sPU: ARMv7 Profacileesdso rt o[ 4f1i0nfdc 0o7c5o]tp  nroedvei
>> ofna i5l e(dAR Mtvo 7fi)n,d  corc=o1t0pc 5n38o7dd
>> e
>> ghUw: -PbIrPeTa k/p oViInPt:T f ounnodn a5l i(a+s1i nrge sdeartvae dc)a cbhree,a kVIpPTo ianltia sianngd  in4s twartucchtpiooinn tc archee
>> mtaecrhsi.ne
>> mhewl:- bCroemakppouiLnabt S:B Cm-aixMiXm7u
>> etcbhopooticnotn ssoilzee  [eiarsl y8c onb0]y teensab.l
>> d
>> 0ma: CMA: reserviemdx 73d2-0p iMnicBt ralt  3a0c20c00000000
>> dMoemmuoxrc-yl ppsorl:i icniyt:i Daaltizae dca chIeM X wpriintceatlrlloc 
>> noOenr 
>> 0 0 tiomtxa7ldp-apgiensc:t r2l6 320134340
>> .frieoem_uarxeac_:i inniitt_inoadlei: zneodd eI M0X,  ppigndcatt r8l0 9dr7i1v1e0r0,
>> ode_mem_map ab759000
>>  DMUM iAs  zroenaed:y  2f0o4r 8c rpoasgse sc oursee dco mfmourn imceatmimoanp!
>> 
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> tooting biLoi:n ucxr eaotne p hsylasbi ca<l bCiPoU- 00>x 0a
>> 0 
>> 2ux version 3.14.52+ (ilya at ilya-pc) (gcc vmexrss-idomna  43.37.020 00(0S0ou.rcdemray- aCpobdhe:B einnitciha Lliitzeed 
>> b2.09-64) us)b _#ot8g 1SM_P vPbRuEsE: M5P0T 0M0o mnV  Fe
>> 35 1f4e:c51_5p:h0y8_n rIeSTs e2t:0 136
>> 0 m[0V00 0
>> 04]pl a*tpgfd=o0r0m 0r0e0g0u0l0at
>> =1.P1U5::  DArRMiv7v ePrr orecg-efsisoxre d-[v4o10lftcag0e 7r5e]q ureevisstis opnr 5o (bAeR Mdve7f)e,r raclr
>> 453t8s7cd20
>> IreCPgU::  P3I3P00T m V/  V
>> T plnaotnfaolrima srienggu ldaattoar .c1a7c:h Der,i VvIePrT  reag-lfiiasxiend-gvo litnasgter urcetiqounes tcsa cpher
>> liM odedfuelrerasl 
>> rpleadt ifn:o
>> - lMcadc_hinnsetb y_m3ovde3l.:18 :C omDpruivLera br eSgBC--ifMiXxe7d
>> bboolottacgeo rnesqoulees [tesa rplroybec odn0e]f ereranla
>> ed
>> 0ma: CMASC:S Ir esusbesryvsedt 3e2m0 i nMiitBi aalti zace0d0
>> 00
>> ieusmbcoorrye :p orleigciys:te rDeatda  necwa chien twerritfeaaclel odcr
>> r Ouns bnofdse
>> etoustbaclopraeg:e sr:e g2i6s2t1e4r4
>> nefrwe ei_natreear_fianciet _dnordiev:e rn ohdeu b0
>> vpusgbdcato r8e0:97 11r0e0g,i stneordee_dm emn_emwa pd eabv7i5c9e0 d0r0i
>> r   uDMsAb 
>> oneus:bp h2y0_4n8o pp1.a1g0es  suuspepdl yf ovrc cm enmmoatp f
>> dd  ,DM Au siznogn ed: u0m mpayg erse gruelsaetrovre
>> 
>> nsb  pDMhA yz_onnoep:2 .21612 1s44u ppplayg evsc,c  LnIoFOt  bfaotuncdh,: u3s1i
>> edPuEmmRyC PrUeg:u lEamtbeodrd
>> 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>  DMA zone: 2048 pages used for memmap
>>  DMA zone: 0 pages reserved
>>  DMA zone: 262144 pages, LIFO batch:31
>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>> Booting Linux on physical CPU 0x0
>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> Machine model: CompuLab SBC-iMX7
>> bootconsole [earlycon0] enabled
>> cma: CMA: reserved 320 MiB at ac000000
>> Memory policy: Data cache writealloc
>> On node 0 totalpages: 262144
>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>> [00000000] *pgd=00000000
>>  DMA zone: 2048 pages used for memmap
> 

iMX7d cpu1 issue

[Ilya Ledvich]

Hi guys,
Your help is much appreciated.
Please see below the code piece enabling the CPU1:
...
	if (cpu_is_imx7d()) {
		/* enable core */
		if (enable)
			imx_gpcv2_set_core1_pdn_pup_by_software(false);
		mask = 1 << (BP_SRC_A7RCR1_A7_CORE1_ENABLE + cpu - 1);
		val = readl_relaxed(src_base + SRC_A7RCR1);
		val = enable ? val | mask : val & ~mask;
		writel_relaxed(val, src_base + SRC_A7RCR1);
	}
...

Kind rgeards,
Ilya.

On 02/18/2016 05:15 PM, Yongcai Huang wrote:
> Hi, llya
>          Can you paste the code piece of enabling CPU1 in src.c? I remembered I met similar issue during bring up SMP on MX7D, but it was 1 year ago, I did NOT remembered the detail now. I suspect something wrong in SRC register setting.
>
>  From Anson's iPhone 6
>
>
>> ? 2016?2?18??22:10?Shawn Guo <shawnguo@kernel.org> ???
>>
>>> On Tue, Feb 16, 2016 at 09:56:47AM +0200, Ilya Ledvich wrote:
>>> Hi Shawn,
>>> I'm working on Compulab CL-SOM-IMX7 device (http://www.compulab.co.il/products/computer-on-modules/cl-som-imx7-freescale-i-mx-7-system-on-module)
>>> based on Freescale iMX7d CPU.
>>> I use the Freescale latest BSP imx_3.14.52_1.1.0_ga  and the Linux
>>> mainline v4.4-rc6 as a reference.
>>> I observe an issue with bringing up the second CPU core. Briefly,
>>> the kernel can successfully boot only when CPU1 fails to come
>>> online.
>>> In this case the boot log shows the following messages:
>>> ...
>>> CPU1: failed to come online
>>> Brought up 1 CPUs
>>> SMP: Total of 1 processors activated (6.00 BogoMIPS).
>>> ...
>>>
>>> Otherwise, the device tries to start kernel several times until the
>>> boot process eventually crashes. Please see attached logs for more
>>> details.
>>> This never happens on mainline Linus kernel, because it never tries
>>> to bring up CPU1.
>>> Unfortunately, we cannot verify this behavior on reference board
>>> cause we have no one.
>>> Have you ever seen such behavior? Could you please advice something?
>>
>> I never played i.MX7D support on any real hardware.  I copied a couple
>> Freescale/NXP people here.  Let's see if you can get some help from
>> them.
>>
>> Shawn
>>
>>> Starting kernel ...
>>>
>>> Uncompressing Linux... done, booting the kernel.
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096
>>> Kernel command line: console=ttymxc0,115200 earlyprintk=ttymxc0,115200 root=/dev/nfs ip=dhcp nfsroot=192.168.11.24:/home/ilya/work/rootfs/sid-minbase,v3,tcp rw rootwait
>>> PID hash table entries: 4096 (order: 2, 16384 bytes)
>>> Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
>>> Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
>>> Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata, 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem)
>>> Virtual kernel memory layout:
>>>     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
>>>     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
>>>     vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
>>>     lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
>>>     pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
>>>     modules : 0x7f000000 - 0x7fe00000   (  14 MB)
>>>       .text : 0x80008000 - 0x808b8880   (8899 kB)
>>>       .init : 0x808b9000 - 0x80919080   ( 385 kB)
>>>       .data : 0x8091a000 - 0x80972680   ( 354 kB)
>>>        .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
>>> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
>>> Preemptible hierarchical RCU implementation.
>>>         RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
>>> RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
>>> NR_IRQS:16 nr_irqs:16 16
>>> Switching to timer-based delay loop
>>> sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
>>> Architected cp15 timer(s) running at 8.00MHz (phys).
>>> sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2147483648000ns
>>> Ignoring duplicate/late registration of read_current_timer delay
>>> 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: 2048 (order: 1, 8192 bytes)
>>> Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
>>> CPU: Testing write buffer coherency: ok
>>> /cpus/cpu at 0 missing clock-frequency property
>>> /cpus/cpu at 1 missing clock-frequency property
>>> CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
>>> Setting up static identity map for 0x80647850 - 0x806478a8
>>> Switching to timer-based delay loop
>>> Calibrating delay loop (skipped) already calibrated this CPU6.00 BogoMIPS (lpj=30000)
>>> sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
>>> Architected cp15 timer(s) running at 8.00MHz (phys).
>>> 2147483648000ns
>>> Current pid: 1 comm: swapper/0 / Idle pid: 0 comm: swapper/0
>>> Ignoring duplicate/late registra
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> CPU1: failed to come online
>>> 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 30340000.iomuxc-gpr: regmap [mem 0x30340000-0x3034ffff] registered
>>> syscon 30350000.ocotp-ctrl: regmap [mem 0x30350000-0x3035ffff] registered
>>> syscon 30360000.anatop: regmap [mem 0x30360000-0x3036ffff] registered
>>> vdd1p0d: 800 <--> 1200 mV at 1000 mV
>>> vdd1p2: 1100 <--> 1300 mV
>>> syscon 30390000.src: regmap [mem 0x30390000-0x3039ffff] registered
>>> DDR type is DDR3!
>>> failed to find ocotp node
>>> failed to find ocotp node
>>> hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
>>> hw-breakpoint: maximum watchpoint size is 8 bytes.
>>> imx7d-pinctrl 302c0000.iomuxc-lpsr: initialized IMX pinctrl driver
>>> imx7d-pinctrl 30330000.iomuxc: initialized IMX pinctrl driver
>>> MU is ready for cross core communication!
>>> bio: create slab <bio-0> at 0
>>> mxs-dma 33000000.dma-apbh: initialized
>>> usb_otg1_vbus: 5000 mV
>>> fec1_phy_nreset: 3300 mV
>>> platform regulator.15: Driver reg-fixed-voltage requests probe deferral
>>> tsc2046-reg: 3300 mV
>>> platform regulator.17: Driver reg-fixed-voltage requests probe deferral
>>> platform lcd_nstby_3v3.18: Driver reg-fixed-voltage requests probe deferral
>>> SCSI subsystem initialized
>>> usbcore: registered new interface driver usbfs
>>> usbcore: registered new interface driver hub
>>> usbcore: registered new device driver usb
>>> usbphy_nop1.10 supply vcc not found, using dummy regulator
>>> usbphy_nop2.11 supply vcc not found, using dummy regulator
>>> i2c i2c-1: IMX I2C adapter registered
>>> i2c i2c-3: 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.
>>> Switched to clocksource arch_sys_counter
>>> cfg80211: Calling CRDA to update world regulatory domain
>>> NET: Registered protocol family 2
>>> TCP established hash table entries: 8192 (order: 3, 32768 bytes)
>>> TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
>>> TCP: Hash tables configured (established 8192 bind 8192)
>>> TCP: reno registered
>>> UDP hash table entries: 512 (order: 2, 16384 bytes)
>>> UDP-Lite hash table entries: 512 (order: 2, 16384 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: 512 (order: 3, 32768 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 2009
>>> io scheduler noop registered
>>> io scheduler deadline registered
>>> io scheduler cfq registered (default)
>>> backlight.20 supply power not found, using dummy regulator
>>> MIPI DSI driver module loaded
>>> 30730000.lcdif supply lcd not found, using dummy regulator
>>> mxsfb 30730000.lcdif: failed to find mxc display driver
>>> Console: switching to colour frame buffer device 100x30
>>> mxsfb 30730000.lcdif: initialized
>>> imx-sdma 30bd0000.sdma: no event needs to be remapped
>>> imx-sdma 30bd0000.sdma: loaded firmware 4.1
>>> imx-sdma 30bd0000.sdma: initialized
>>> pfuze100-regulator 1-0008: Full layer: 1, Metal layer: 1
>>> pfuze100-regulator 1-0008: FAB: 0, FIN: 0
>>> pfuze100-regulator 1-0008: pfuze3000 found.
>>> SW1A: 700 <--> 3300 mV at 1100 mV
>>> SW1B: 700 <--> 1475 mV at 1000 mV
>>> SW2: 1500 <--> 1850 mV at 1800 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 1800 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 3300 mV
>>> VLDO4: 1800 <--> 3300 mV at 3300 mV
>>> Serial: IMX driver
>>> 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 58, base_baud = 1500000) is a IMX
>>> console [ttymxc0] enabled
>>> bootconsole [earlycon0] disabled
>>> 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
>>> at24 1-0050: 1024 byte 24c08 EEPROM, writable, 16 bytes/write
>>> m25p80 spi0.1: m25px16 (2048 Kbytes)
>>> 3 ofpart partitions found on MTD device spi0.1
>>> Creating 3 MTD partitions on "spi0.1":
>>> 0x000000000000-0x0000000c0000 : "uboot"
>>> 0x0000000c0000-0x000000100000 : "uboot environment"
>>> 0x000000100000-0x000000200000 : "splash"
>>> spi_imx 30820000.ecspi: probed
>>> 30be0000.ethernet supply phy not found, using dummy regulator
>>> pps pps0: new PPS source ptp0
>>> libphy: fec_enet_mii_bus: probed
>>> fec 30be0000.ethernet eth0: registered PHC device 0
>>> 30bf0000.ethernet supply phy not found, using dummy regulator
>>> pps pps1: new PPS source ptp1
>>> fec 30bf0000.ethernet (unregistered net_device): Invalid MAC address: 00:00:00:00:00:00
>>> fec 30bf0000.ethernet (unregistered net_device): Using random MAC address: c2:a3:b7:db:4d:b0
>>> fec 30bf0000.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
>>> 30b10200.usbmisc supply vbus-wakeup not found, using dummy regulator
>>> 30b20200.usbmisc supply vbus-wakeup not found, using dummy regulator
>>> 30b30200.usbmisc supply vbus-wakeup not found, using dummy regulator
>>> 30b20000.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
>>> imx_usb 30b30000.usb: Can't register ci_hdrc platform device, err=-517
>>> platform 30b30000.usb: Driver imx_usb requests probe deferral
>>> mousedev: PS/2 mouse device common for all mice
>>> input: 30370000.snvs-pwrkey as /devices/soc.3/30000000.aips-bus/30370000.snvs-pwrkey/input/input0
>>> snvs_pwrkey 30370000.snvs-pwrkey: i.MX snvs powerkey probed
>>> rtc-em3027 1-0056: rtc core: registered rtc-em3027 as rtc0
>>> snvs_rtc 30370034.snvs-rtc-lp: rtc core: registered 30370034.snvs-rtc-l as rtc1
>>> 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
>>> imx2-wdt 30280000.wdog: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=0)
>>> sdhci: Secure Digital Host Controller Interface driver
>>> sdhci: Copyright(c) Pierre Ossman
>>> sdhci-pltfm: SDHCI platform and OF driver helper
>>> sdhci-esdhc-imx 30b40000.usdhc: could not get ultra high speed state, work on normal mode
>>> mmc0: no vqmmc regulator found
>>> mmc0: no vmmc regulator found
>>> mmc0: SDHCI controller on 30b40000.usdhc [30b40000.usdhc] using ADMA
>>> sdhci-esdhc-imx 30b60000.usdhc: could not get ultra high speed state, work on normal mode
>>> mmc2: no vqmmc regulator found
>>> mmc2: no vmmc regulator found
>>> mmc0: new high speed SDHC card at address e624
>>> mmc2: SDHCI controller on 30b60000.usdhc [30b60000.usdhc] using ADMA
>>> mmcblk0: mmc0:e624 SS08G 7.40 GiB
>>> usbcore: registered new interface driver usbhid
>>> usbhid: USB HID core driver
>>> mmcblk0: unknown partition table
>>> TCP: cubic registered
>>> NET: Registered protocol family 10
>>> sit: IPv6 over IPv4 tunneling driver
>>> NET: Registered protocol family 17
>>> Key type dns_resolver registered
>>> usb 1-1: new high-speed USB device number 2 using ci_hdrc
>>> Registering SWP/SWPB emulation handler
>>> SWBST: disabling
>>> usb_otg1_vbus: disabling
>>> regulator-dummy: disabling
>>> imx mcc test is registered.
>>> fec2_phy_nreset: 3300 mV
>>> usb_host_nreset: 3300 mV
>>> lcd_nstby_3v3: no parameters
>>> ci_hdrc ci_hdrc.2: EHCI Host Controller
>>> ci_hdrc ci_hdrc.2: new USB bus registered, assigned bus number 2
>>> mmc2: BKOPS_EN bit is not set
>>> mmc2: new high speed DDR MMC card at address 0001
>>> mmcblk2: mmc2:0001 SEM04G 3.68 GiB
>>> mmcblk2boot0: mmc2:0001 SEM04G partition 1 2.00 MiB
>>> mmcblk2boot1: mmc2:0001 SEM04G partition 2 2.00 MiB
>>> mmcblk2rpmb: mmc2:0001 SEM04G partition 3 2.00 MiB
>>> mmcblk2: unknown partition table
>>> mmcblk2boot1: unknown partition table
>>> mmcblk2boot0: unknown partition table
>>> ci_hdrc ci_hdrc.2: USB 2.0 started, EHCI 1.00
>>> hub 2-0:1.0: USB hub found
>>> hub 2-0:1.0: 1 port detected
>>> Number of LUNs=8
>>> Mass Storage Function, version: 2009/09/11
>>> LUN: removable file: (no medium)
>>> usb-storage 1-1:1.0: USB Mass Storage device detected
>>> scsi0 : usb-storage 1-1:1.0
>>> Number of LUNs=1
>>> no file given for LUN0
>>> g_mass_storage ci_hdrc.0: failed to start g_mass_storage: -22
>>> rtc-em3027 1-0056: setting system clock to 2016-02-16 07:32:51 UTC (1455607971)
>>> fec 30be0000.ethernet eth0: Freescale FEC PHY driver [Atheros 8031 ethernet] (mii_bus:phy_addr=30be0000.etherne:00, irq=-1)
>>> IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
>>> fec 30bf0000.ethernet eth1: Freescale FEC PHY driver [Atheros 8031 ethernet] (mii_bus:phy_addr=30be0000.etherne:01, irq=-1)
>>> usb 2-1: new high-speed USB device number 2 using ci_hdrc
>>> IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
>>> hub 2-1:1.0: USB hub found
>>> hub 2-1:1.0: 3 ports detected
>>> scsi 0:0:0:0: Direct-Access     SanDisk  Cruzer Slice     1.14 PQ: 0 ANSI: 2
>>> sd 0:0:0:0: [sda] 15633408 512-byte logical blocks: (8.00 GB/7.45 GiB)
>>> sd 0:0:0:0: [sda] Write Protect is off
>>> sd 0:0:0:0: [sda] No Caching mode page found
>>> sd 0:0:0:0: [sda] Assuming drive cache: write through
>>> sd 0:0:0:0: [sda] No Caching mode page found
>>> sd 0:0:0:0: [sda] Assuming drive cache: write through
>>> sda: unknown partition table
>>> sd 0:0:0:0: [sda] No Caching mode page found
>>> sd 0:0:0:0: [sda] Assuming drive cache: write through
>>> sd 0:0:0:0: [sda] Attached SCSI removable disk
>>> libphy: 30be0000.etherne:00 - Link is Up - 1000/Full
>>> IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
>>> Sending DHCP requests ., OK
>>> IP-Config: Got DHCP answer from 10.1.1.240, my address is 192.168.27.43
>>> IP-Config: Complete:
>>>      device=eth0, hwaddr=00:01:c0:1a:e9:13, ipaddr=192.168.27.43, mask=255.255.0.0, gw=192.168.0.110
>>>      host=192.168.27.43, domain=compulab.local, nis-domain=(none)
>>>      bootserver=10.1.1.247, rootserver=192.168.11.24, rootpath=
>>>      nameserver0=192.168.10.13, nameserver1=10.1.1.247
>>> ALSA device list:
>>>   No soundcards found.
>>> VFS: Mounted root (nfs filesystem) on device 0:13.
>>> devtmpfs: mounted
>>> Freeing unused kernel memory: 384K (808b9000 - 80919000)
>>> random: systemd urandom read with 58 bits of entropy available
>>> systemd[1]: systemd 228 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN)
>>> systemd[1]: Detected architecture arm.
>>>
>>> Welcome to Debian GNU/Linux stretch/sid!
>>
>>> Starting kernel ...
>>>
>>> Uncompressing Linux... done, booting the kernel.
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096
>>> Kernel command line: console=ttymxc0,115200 earlyprintk=ttymxc0,115200 root=/dev/nfs ip=dhcp nfsroot=192.168.11.24:/home/ilya/work/rootfs/sid-minbase,v3,tcp rw rootwait
>>> PID hash table entries: 4096 (order: 2, 16384 bytes)
>>> Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
>>> Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
>>> Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata, 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem)
>>> Virtual kernel memory layout:
>>>     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
>>>     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
>>>     vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
>>>     lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
>>>     pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
>>>     modules : 0x7f000000 - 0x7fe00000   (  14 MB)
>>>       .text : 0x80008000 - 0x808b8880   (8899 kB)
>>>       .init : 0x808b9000 - 0x80919080   ( 385 kB)
>>>       .data : 0x8091a000 - 0x80972680   ( 354 kB)
>>>        .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
>>> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
>>> Preemptible hierarchical RCU implementation.
>>>         RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
>>> RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
>>> NR_IRQS:16 nr_irqs:16 16
>>> Switching to timer-based delay loop
>>> sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
>>> Architected cp15 timer(s) running at 8.00MHz (phys).
>>> sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2147483648000ns
>>> Ignoring duplicate/late registration of read_current_timer delay
>>> 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: 2048 (order: 1, 8192 bytes)
>>> Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
>>> CPU: Testing write buffer coherency: ok
>>> /cpus/cpu at 0 missing clock-frequency property
>>> /cpus/cpu at 1 missing clock-frequency property
>>> CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
>>> Setting up static identity map for 0x80647850 - 0x806478a8
>>> Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata, 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem)
>>> Virtual kernel memory layout:
>>>     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
>>>     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
>>>     vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
>>>     lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
>>>     pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
>>>     modules : 0x7f000000 - 0x7fe00000   (  14 MB)
>>>       .text : 0x80008000 - 0x808b8880   (8899 kB)
>>>       .init : 0x808b9000 - 0x80919080   ( 385 kB)
>>>       .data : 0x8091a000 - 0x80972680   ( 354 kB)
>>>        .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
>>> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
>>> Preemptible hierarchical RCU implementation.
>>>         RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
>>> RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
>>> Calibrating delay loop (skipped) already calibrated this CPU6.00 BogoMIPS (lpj=30000)
>>> NR_IRQS:16 nr_irqs:16 16
>>> Switching to timer-based delay loop
>>> sched_clock: 32 bits at 3000kHz,
>>> [000001d8] *pgd=00000000
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> Modules linked in:
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> [00000008] *pgd=00000000
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>> Modules linked in:
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> [00000000] *pgd=00000000
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> Modules linked in:
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> [00000000] *pgd=00000000
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> Modules linked in:
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> [00000000] *pgd=00000000
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> Modules linked in:
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> nPU: PIPT / VIPT nonaliasing data cacCPhUe1,:  VfIaPiTl ealdia stion gc oimnes tornulctiinoe
>>> Braoucghhet
>>> m 1Ma chCiPnUes
>>> seSMlP::  CToomtaplu Loafb  S1B C-pirMoXc7es
>>> asbo oatcctoivnastoelde  (6[.0e0a rBloygcooMnI0P]S )e.n
>>> AClPeU:d
>>> 0c mCaP: UC(MsA:)  rsetsaerrtveedd  i3n20  SMViCB m oadte .ac
>>> 0000
>>> cheemvotrmyp fpso:l iciyn:it iDaaltiaz ecda
>>> writealloc
>>> On node 0 totalpages: 262144
>>> aree_area_init_nVFoPde :s unpopdoer t0,  pvg0d.a3t:  80i9m71p1l0e0m,e nntoord 4e1_ meamr_chmitaepc taubr7e5 9200 0p
>>> p 3  0D MvAa rzioannet :7  r2e0v4 85
>>> tes uspeidn cftorlr c ormee:m mianpi
>>> i a lDiMzAe dz opnie:n c0t rpalge s sruebsseyrsvteedm
>>>
>>> h DMAre guzloanteo:r -2d62u14m4m yp:a gneos ,p aLrIaFmOe tebrastc
>>> 31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Binux version 3.14.52+ (ilya at ilya-pc) NE(Tg:c cR evgeirssiotne r4e.d 7pr.o2t (oScoolu fracmeirlyy  C1o6de
>>> nch Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410DMfAc:0 7p5r]e arlelvoicsaitoend  52 5(6A RKMivB7 )p,o olc rf=1o0rc 5a3to8mi7cd
>>> ahCPeU:r PeInPt Ta l/ lVoIcaPtTi noonns
>>> iasing datacp uciadclhee:,  uVsIPiTn g agloivaesirngn oir nlsatrducdteiro
>>> : cpauicdhlee
>>> mpMnagc hignoev emrnoodrel :m enCuo
>>> abUs eS BWCD-iOMXG71
>>>   rbeosoettc osnosuorlcee
>>> [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> pysOcno nno d3e0 304 0t0o0t0.ailopmaugxecs-:g p2r6:2 r1eg4m4a
>>> 11freeme _0axr3ea0_3i40n0i0t_0no-d0ex3:0 3no4dfef f0f, ]p grdeagti s8t0er9ed7
>>> c, snyosdcoen_ m3e0m3_50m0a0p0 .aobc7o5t90p00-
>>> el  :DM Ar ezgomanpe :[ m2e0m48  0pxa3g0e3s50 00u0s-ed0 xf3o0r3 5mfefmffm]a pr
>>> o s teDrMeA dz
>>> : 0 pagseyss croesne r3v0e3d6
>>> 6f  0D.MaAn zaonteo:p:  2r6e2g1m4a4p  pa[gmeesm, 0 xL3I03F6O0 0b0a0t-c0hx:33013
>>> ffPE]R CrePgiUs:t eErmbeedd
>>> d1 8 pvdad1gp0eds:/ c8p0u0  @<a-b-7>3 1520000 0m Vs 8a3t2 01 0r080 1m9V2
>>> 056 vdud13p22:7 61810
>>> x--B>o o1ti3n0g0  mLVin u
>>> 30 physical CPUsy sc0oxn0
>>> 0L0i0n0ux. svrecr:si orne g3m.a1p4 .[m5em2 +0 x(3i0l39y0a0 at i0l0y-a0-xp3c0)3 9f(fgfccf ]v reergsiiosnt e4r.e7.d2
>>> 9ourcery CodeDBDeRn cthy pLei itse  2D0D1R23.!0
>>> -64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> sPU: ARMv7 Profacileesdso rt o[ 4f1i0nfdc 0o7c5o]tp  nroedvei
>>> ofna i5l e(dAR Mtvo 7fi)n,d  corc=o1t0pc 5n38o7dd
>>> e
>>> ghUw: -PbIrPeTa k/p oViInPt:T f ounnodn a5l i(a+s1i nrge sdeartvae dc)a cbhree,a kVIpPTo ianltia sianngd  in4s twartucchtpiooinn tc archee
>>> mtaecrhsi.ne
>>> mhewl:- bCroemakppouiLnabt S:B Cm-aixMiXm7u
>>> etcbhopooticnotn ssoilzee  [eiarsl y8c onb0]y teensab.l
>>> d
>>> 0ma: CMA: reserviemdx 73d2-0p iMnicBt ralt  3a0c20c00000000
>>> dMoemmuoxrc-yl ppsorl:i icniyt:i Daaltizae dca chIeM X wpriintceatlrlloc
>>> noOenr
>>> 0 0 tiomtxa7ldp-apgiensc:t r2l6 320134340
>>> .frieoem_uarxeac_:i inniitt_inoadlei: zneodd eI M0X,  ppigndcatt r8l0 9dr7i1v1e0r0,
>>> ode_mem_map ab759000
>>>   DMUM iAs  zroenaed:y  2f0o4r 8c rpoasgse sc oursee dco mfmourn imceatmimoanp!
>>>
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> tooting biLoi:n ucxr eaotne p hsylasbi ca<l bCiPoU- 00>x 0a
>>> 0
>>> 2ux version 3.14.52+ (ilya at ilya-pc) (gcc vmexrss-idomna  43.37.020 00(0S0ou.rcdemray- aCpobdhe:B einnitciha Lliitzeed
>>> b2.09-64) us)b _#ot8g 1SM_P vPbRuEsE: M5P0T 0M0o mnV  Fe
>>> 35 1f4e:c51_5p:h0y8_n rIeSTs e2t:0 136
>>> 0 m[0V00 0
>>> 04]pl a*tpgfd=o0r0m 0r0e0g0u0l0at
>>> =1.P1U5::  DArRMiv7v ePrr orecg-efsisoxre d-[v4o10lftcag0e 7r5e]q ureevisstis opnr 5o (bAeR Mdve7f)e,r raclr
>>> 453t8s7cd20
>>> IreCPgU::  P3I3P00T m V/  V
>>> T plnaotnfaolrima srienggu ldaattoar .c1a7c:h Der,i VvIePrT  reag-lfiiasxiend-gvo litnasgter urcetiqounes tcsa cpher
>>> liM odedfuelrerasl
>>> rpleadt ifn:o
>>> - lMcadc_hinnsetb y_m3ovde3l.:18 :C omDpruivLera br eSgBC--ifMiXxe7d
>>> bboolottacgeo rnesqoulees [tesa rplroybec odn0e]f ereranla
>>> ed
>>> 0ma: CMASC:S Ir esusbesryvsedt 3e2m0 i nMiitBi aalti zace0d0
>>> 00
>>> ieusmbcoorrye :p orleigciys:te rDeatda  necwa chien twerritfeaaclel odcr
>>> r Ouns bnofdse
>>> etoustbaclopraeg:e sr:e g2i6s2t1e4r4
>>> nefrwe ei_natreear_fianciet _dnordiev:e rn ohdeu b0
>>> vpusgbdcato r8e0:97 11r0e0g,i stneordee_dm emn_emwa pd eabv7i5c9e0 d0r0i
>>> r   uDMsAb
>>> oneus:bp h2y0_4n8o pp1.a1g0es  suuspepdl yf ovrc cm enmmoatp f
>>> dd  ,DM Au siznogn ed: u0m mpayg erse gruelsaetrovre
>>>
>>> nsb  pDMhA yz_onnoep:2 .21612 1s44u ppplayg evsc,c  LnIoFOt  bfaotuncdh,: u3s1i
>>> edPuEmmRyC PrUeg:u lEamtbeodrd
>>> 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>>   DMA zone: 2048 pages used for memmap
>>>   DMA zone: 0 pages reserved
>>>   DMA zone: 262144 pages, LIFO batch:31
>>> PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
>>> Booting Linux on physical CPU 0x0
>>> Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
>>> CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>>> Machine model: CompuLab SBC-iMX7
>>> bootconsole [earlycon0] enabled
>>> cma: CMA: reserved 320 MiB at ac000000
>>> Memory policy: Data cache writealloc
>>> On node 0 totalpages: 262144
>>> free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
>>> [00000000] *pgd=00000000
>>>   DMA zone: 2048 pages used for memmap
>>

iMX7d cpu1 issue

[Frank Li]

> -----Original Message-----
> From: Shawn Guo [mailto:shawnguo at kernel.org]
> Sent: Thursday, February 18, 2016 8:09 AM
> To: Ilya Ledvich <ilya@compulab.co.il>
> Cc: linux-arm-kernel at lists.infradead.org; Frank Li <frank.li@nxp.com>;
> Yongcai Huang <anson.huang@nxp.com>
> Subject: Re: iMX7d cpu1 issue
> 
> On Tue, Feb 16, 2016 at 09:56:47AM +0200, Ilya Ledvich wrote:
> > Hi Shawn,
> > I'm working on Compulab CL-SOM-IMX7 device
> > (http://www.compulab.co.il/products/computer-on-modules/cl-som-
> imx7-fr
> > eescale-i-mx-7-system-on-module)
> > based on Freescale iMX7d CPU.
> > I use the Freescale latest BSP imx_3.14.52_1.1.0_ga  and the Linux
> > mainline v4.4-rc6 as a reference.
> > I observe an issue with bringing up the second CPU core. Briefly, the
> > kernel can successfully boot only when CPU1 fails to come online.
> > In this case the boot log shows the following messages:
> > ...
> > CPU1: failed to come online
> > Brought up 1 CPUs
> > SMP: Total of 1 processors activated (6.00 BogoMIPS).
> > ...
> >
> > Otherwise, the device tries to start kernel several times until the
> > boot process eventually crashes. Please see attached logs for more
> > details.
> > This never happens on mainline Linus kernel, because it never tries to
> > bring up CPU1.
> > Unfortunately, we cannot verify this behavior on reference board cause
> > we have no one.
> > Have you ever seen such behavior? Could you please advice something?

Did you set arm,cpu-registers-not-fw-configured; in arch timer?
How about your uboot version?

Latest upstream uboot already boot A7 as no-security mode.

Best regards
Frank Li

> 
> I never played i.MX7D support on any real hardware.  I copied a couple
> Freescale/NXP people here.  Let's see if you can get some help from them.
> 
> Shawn
> 
> > Starting kernel ...
> >
> > Uncompressing Linux... done, booting the kernel.
> > Booting Linux on physical CPU 0x0
> > Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery
> > CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST
> > 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Built
> > 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096
> > Kernel command line: console=ttymxc0,115200
> earlyprintk=ttymxc0,115200
> > root=/dev/nfs ip=dhcp
> > nfsroot=192.168.11.24:/home/ilya/work/rootfs/sid-minbase,v3,tcp rw
> > rootwait PID hash table entries: 4096 (order: 2, 16384 bytes) Dentry
> > cache hash table entries: 131072 (order: 7, 524288 bytes) Inode-cache
> > hash table entries: 65536 (order: 6, 262144 bytes)
> > Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata,
> > 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem) Virtual
> kernel memory layout:
> >     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
> >     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
> >     vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
> >     lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
> >     pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
> >     modules : 0x7f000000 - 0x7fe00000   (  14 MB)
> >       .text : 0x80008000 - 0x808b8880   (8899 kB)
> >       .init : 0x808b9000 - 0x80919080   ( 385 kB)
> >       .data : 0x8091a000 - 0x80972680   ( 354 kB)
> >        .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
> > SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
> Preemptible
> > hierarchical RCU implementation.
> >         RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
> > RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
> > NR_IRQS:16 nr_irqs:16 16
> > Switching to timer-based delay loop
> > sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every
> > 1431655765682ns Architected cp15 timer(s) running at 8.00MHz (phys).
> > sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every
> > 2147483648000ns Ignoring duplicate/late registration of
> > read_current_timer delay
> > 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: 2048 (order: 1, 8192 bytes)
> > Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
> > CPU: Testing write buffer coherency: ok
> > /cpus/cpu at 0 missing clock-frequency property
> > /cpus/cpu at 1 missing clock-frequency property
> > CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 Setting up static
> > identity map for 0x80647850 - 0x806478a8 Switching to timer-based
> > delay loop Calibrating delay loop (skipped) already calibrated this
> > CPU6.00 BogoMIPS (lpj=30000)
> > sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every
> > 1431655765682ns Architected cp15 timer(s) running at 8.00MHz (phys).
> > 2147483648000ns
> > Current pid: 1 comm: swapper/0 / Idle pid: 0 comm: swapper/0 Ignoring
> > duplicate/late registra Booting Linux on physical CPU 0x0 Linux
> > version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench
> > Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc
> > CPU1: failed to come online
> > 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 30340000.iomuxc-gpr: regmap [mem 0x30340000-0x3034ffff]
> > registered syscon 30350000.ocotp-ctrl: regmap [mem
> > 0x30350000-0x3035ffff] registered syscon 30360000.anatop: regmap
> [mem
> > 0x30360000-0x3036ffff] registered
> > vdd1p0d: 800 <--> 1200 mV at 1000 mV
> > vdd1p2: 1100 <--> 1300 mV
> > syscon 30390000.src: regmap [mem 0x30390000-0x3039ffff] registered
> DDR
> > type is DDR3!
> > failed to find ocotp node
> > failed to find ocotp node
> > hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint
> registers.
> > hw-breakpoint: maximum watchpoint size is 8 bytes.
> > imx7d-pinctrl 302c0000.iomuxc-lpsr: initialized IMX pinctrl driver
> > imx7d-pinctrl 30330000.iomuxc: initialized IMX pinctrl driver MU is
> > ready for cross core communication!
> > bio: create slab <bio-0> at 0
> > mxs-dma 33000000.dma-apbh: initialized
> > usb_otg1_vbus: 5000 mV
> > fec1_phy_nreset: 3300 mV
> > platform regulator.15: Driver reg-fixed-voltage requests probe
> > deferral
> > tsc2046-reg: 3300 mV
> > platform regulator.17: Driver reg-fixed-voltage requests probe
> > deferral platform lcd_nstby_3v3.18: Driver reg-fixed-voltage requests
> > probe deferral SCSI subsystem initialized
> > usbcore: registered new interface driver usbfs
> > usbcore: registered new interface driver hub
> > usbcore: registered new device driver usb
> > usbphy_nop1.10 supply vcc not found, using dummy regulator
> > usbphy_nop2.11 supply vcc not found, using dummy regulator i2c i2c-1:
> > IMX I2C adapter registered i2c i2c-3: 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.
> > Switched to clocksource arch_sys_counter
> > cfg80211: Calling CRDA to update world regulatory domain
> > NET: Registered protocol family 2
> > TCP established hash table entries: 8192 (order: 3, 32768 bytes) TCP
> > bind hash table entries: 8192 (order: 4, 65536 bytes)
> > TCP: Hash tables configured (established 8192 bind 8192)
> > TCP: reno registered
> > UDP hash table entries: 512 (order: 2, 16384 bytes) UDP-Lite hash
> > table entries: 512 (order: 2, 16384 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: 512 (order: 3, 32768 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 2009
> > io scheduler noop registered
> > io scheduler deadline registered
> > io scheduler cfq registered (default)
> > backlight.20 supply power not found, using dummy regulator MIPI DSI
> > driver module loaded 30730000.lcdif supply lcd not found, using dummy
> > regulator mxsfb 30730000.lcdif: failed to find mxc display driver
> > Console: switching to colour frame buffer device 100x30 mxsfb
> > 30730000.lcdif: initialized imx-sdma 30bd0000.sdma: no event needs to
> > be remapped imx-sdma 30bd0000.sdma: loaded firmware 4.1 imx-sdma
> > 30bd0000.sdma: initialized pfuze100-regulator 1-0008: Full layer: 1,
> > Metal layer: 1 pfuze100-regulator 1-0008: FAB: 0, FIN: 0
> > pfuze100-regulator 1-0008: pfuze3000 found.
> > SW1A: 700 <--> 3300 mV at 1100 mV
> > SW1B: 700 <--> 1475 mV at 1000 mV
> > SW2: 1500 <--> 1850 mV at 1800 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 1800 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 3300 mV
> > VLDO4: 1800 <--> 3300 mV at 3300 mV
> > Serial: IMX driver
> > 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 58, base_baud =
> > 1500000) is a IMX console [ttymxc0] enabled bootconsole [earlycon0]
> > disabled
> > 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
> > at24 1-0050: 1024 byte 24c08 EEPROM, writable, 16 bytes/write
> > m25p80 spi0.1: m25px16 (2048 Kbytes)
> > 3 ofpart partitions found on MTD device spi0.1 Creating 3 MTD
> > partitions on "spi0.1":
> > 0x000000000000-0x0000000c0000 : "uboot"
> > 0x0000000c0000-0x000000100000 : "uboot environment"
> > 0x000000100000-0x000000200000 : "splash"
> > spi_imx 30820000.ecspi: probed
> > 30be0000.ethernet supply phy not found, using dummy regulator pps
> > pps0: new PPS source ptp0
> > libphy: fec_enet_mii_bus: probed
> > fec 30be0000.ethernet eth0: registered PHC device 0 30bf0000.ethernet
> > supply phy not found, using dummy regulator pps pps1: new PPS source
> > ptp1 fec 30bf0000.ethernet (unregistered net_device): Invalid MAC
> > address: 00:00:00:00:00:00 fec 30bf0000.ethernet (unregistered
> > net_device): Using random MAC address: c2:a3:b7:db:4d:b0 fec
> > 30bf0000.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 30b10200.usbmisc
> > supply vbus-wakeup not found, using dummy regulator 30b20200.usbmisc
> > supply vbus-wakeup not found, using dummy regulator 30b30200.usbmisc
> > supply vbus-wakeup not found, using dummy regulator 30b20000.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 imx_usb
> > 30b30000.usb: Can't register ci_hdrc platform device, err=-517
> > platform 30b30000.usb: Driver imx_usb requests probe deferral
> > mousedev: PS/2 mouse device common for all mice
> > input: 30370000.snvs-pwrkey as
> > /devices/soc.3/30000000.aips-bus/30370000.snvs-pwrkey/input/input0
> > snvs_pwrkey 30370000.snvs-pwrkey: i.MX snvs powerkey probed
> > rtc-em3027 1-0056: rtc core: registered rtc-em3027 as rtc0 snvs_rtc
> > 30370034.snvs-rtc-lp: rtc core: registered 30370034.snvs-rtc-l as rtc1
> > 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
> > imx2-wdt 30280000.wdog: IMX2+ Watchdog Timer enabled. timeout=60s
> > (nowayout=0)
> > sdhci: Secure Digital Host Controller Interface driver
> > sdhci: Copyright(c) Pierre Ossman
> > sdhci-pltfm: SDHCI platform and OF driver helper sdhci-esdhc-imx
> > 30b40000.usdhc: could not get ultra high speed state, work on normal
> > mode
> > mmc0: no vqmmc regulator found
> > mmc0: no vmmc regulator found
> > mmc0: SDHCI controller on 30b40000.usdhc [30b40000.usdhc] using ADMA
> > sdhci-esdhc-imx 30b60000.usdhc: could not get ultra high speed state,
> > work on normal mode
> > mmc2: no vqmmc regulator found
> > mmc2: no vmmc regulator found
> > mmc0: new high speed SDHC card at address e624
> > mmc2: SDHCI controller on 30b60000.usdhc [30b60000.usdhc] using ADMA
> > mmcblk0: mmc0:e624 SS08G 7.40 GiB
> > usbcore: registered new interface driver usbhid
> > usbhid: USB HID core driver
> >  mmcblk0: unknown partition table
> > TCP: cubic registered
> > NET: Registered protocol family 10
> > sit: IPv6 over IPv4 tunneling driver
> > NET: Registered protocol family 17
> > Key type dns_resolver registered
> > usb 1-1: new high-speed USB device number 2 using ci_hdrc Registering
> > SWP/SWPB emulation handler
> > SWBST: disabling
> > usb_otg1_vbus: disabling
> > regulator-dummy: disabling
> > imx mcc test is registered.
> > fec2_phy_nreset: 3300 mV
> > usb_host_nreset: 3300 mV
> > lcd_nstby_3v3: no parameters
> > ci_hdrc ci_hdrc.2: EHCI Host Controller ci_hdrc ci_hdrc.2: new USB bus
> > registered, assigned bus number 2
> > mmc2: BKOPS_EN bit is not set
> > mmc2: new high speed DDR MMC card at address 0001
> > mmcblk2: mmc2:0001 SEM04G 3.68 GiB
> > mmcblk2boot0: mmc2:0001 SEM04G partition 1 2.00 MiB
> > mmcblk2boot1: mmc2:0001 SEM04G partition 2 2.00 MiB
> > mmcblk2rpmb: mmc2:0001 SEM04G partition 3 2.00 MiB
> >  mmcblk2: unknown partition table
> >  mmcblk2boot1: unknown partition table
> >  mmcblk2boot0: unknown partition table ci_hdrc ci_hdrc.2: USB 2.0
> > started, EHCI 1.00 hub 2-0:1.0: USB hub found hub 2-0:1.0: 1 port
> > detected Number of LUNs=8 Mass Storage Function, version: 2009/09/11
> > LUN: removable file: (no medium)
> > usb-storage 1-1:1.0: USB Mass Storage device detected
> > scsi0 : usb-storage 1-1:1.0
> > Number of LUNs=1
> > no file given for LUN0
> > g_mass_storage ci_hdrc.0: failed to start g_mass_storage: -22
> > rtc-em3027 1-0056: setting system clock to 2016-02-16 07:32:51 UTC
> > (1455607971) fec 30be0000.ethernet eth0: Freescale FEC PHY driver
> > [Atheros 8031 ethernet] (mii_bus:phy_addr=30be0000.etherne:00, irq=-1)
> > IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready fec
> > 30bf0000.ethernet eth1: Freescale FEC PHY driver [Atheros 8031
> > ethernet] (mii_bus:phy_addr=30be0000.etherne:01, irq=-1) usb 2-1: new
> > high-speed USB device number 2 using ci_hdrc
> > IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready hub 2-1:1.0: USB
> > hub found hub 2-1:1.0: 3 ports detected
> > scsi 0:0:0:0: Direct-Access     SanDisk  Cruzer Slice     1.14 PQ: 0 ANSI: 2
> > sd 0:0:0:0: [sda] 15633408 512-byte logical blocks: (8.00 GB/7.45 GiB)
> > sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] No Caching
> > mode page found sd 0:0:0:0: [sda] Assuming drive cache: write through
> > sd 0:0:0:0: [sda] No Caching mode page found sd 0:0:0:0: [sda]
> > Assuming drive cache: write through
> >  sda: unknown partition table
> > sd 0:0:0:0: [sda] No Caching mode page found sd 0:0:0:0: [sda]
> > Assuming drive cache: write through sd 0:0:0:0: [sda] Attached SCSI
> > removable disk
> > libphy: 30be0000.etherne:00 - Link is Up - 1000/Full
> > IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Sending
> DHCP
> > requests ., OK
> > IP-Config: Got DHCP answer from 10.1.1.240, my address is
> > 192.168.27.43
> > IP-Config: Complete:
> >      device=eth0, hwaddr=00:01:c0:1a:e9:13, ipaddr=192.168.27.43,
> mask=255.255.0.0, gw=192.168.0.110
> >      host=192.168.27.43, domain=compulab.local, nis-domain=(none)
> >      bootserver=10.1.1.247, rootserver=192.168.11.24, rootpath=
> >      nameserver0=192.168.10.13, nameserver1=10.1.1.247 ALSA device
> > list:
> >   No soundcards found.
> > VFS: Mounted root (nfs filesystem) on device 0:13.
> > devtmpfs: mounted
> > Freeing unused kernel memory: 384K (808b9000 - 80919000)
> > random: systemd urandom read with 58 bits of entropy available
> > systemd[1]: systemd 228 running in system mode. (+PAM +AUDIT
> +SELINUX
> > +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT
> +GNUTLS
> > +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN)
> > systemd[1]: Detected architecture arm.
> >
> > Welcome to Debian GNU/Linux stretch/sid!
> >
> 
> > Starting kernel ...
> >
> > Uncompressing Linux... done, booting the kernel.
> > Booting Linux on physical CPU 0x0
> > Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery
> > CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST
> > 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> Built
> > 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096
> > Kernel command line: console=ttymxc0,115200
> earlyprintk=ttymxc0,115200
> > root=/dev/nfs ip=dhcp
> > nfsroot=192.168.11.24:/home/ilya/work/rootfs/sid-minbase,v3,tcp rw
> > rootwait PID hash table entries: 4096 (order: 2, 16384 bytes) Dentry
> > cache hash table entries: 131072 (order: 7, 524288 bytes) Inode-cache
> > hash table entries: 65536 (order: 6, 262144 bytes)
> > Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata,
> > 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem) Virtual
> kernel memory layout:
> >     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
> >     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
> >     vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
> >     lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
> >     pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
> >     modules : 0x7f000000 - 0x7fe00000   (  14 MB)
> >       .text : 0x80008000 - 0x808b8880   (8899 kB)
> >       .init : 0x808b9000 - 0x80919080   ( 385 kB)
> >       .data : 0x8091a000 - 0x80972680   ( 354 kB)
> >        .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
> > SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
> Preemptible
> > hierarchical RCU implementation.
> >         RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
> > RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
> > NR_IRQS:16 nr_irqs:16 16
> > Switching to timer-based delay loop
> > sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every
> > 1431655765682ns Architected cp15 timer(s) running at 8.00MHz (phys).
> > sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every
> > 2147483648000ns Ignoring duplicate/late registration of
> > read_current_timer delay
> > 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: 2048 (order: 1, 8192 bytes)
> > Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
> > CPU: Testing write buffer coherency: ok
> > /cpus/cpu at 0 missing clock-frequency property
> > /cpus/cpu at 1 missing clock-frequency property
> > CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 Setting up static
> > identity map for 0x80647850 - 0x806478a8
> > Memory: 700996K/1048576K available (6617K kernel code, 353K rwdata,
> > 2280K rodata, 384K init, 421K bss, 347580K reserved, 0K highmem) Virtual
> kernel memory layout:
> >     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
> >     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
> >     vmalloc : 0xc0800000 - 0xff000000   (1000 MB)
> >     lowmem  : 0x80000000 - 0xc0000000   (1024 MB)
> >     pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
> >     modules : 0x7f000000 - 0x7fe00000   (  14 MB)
> >       .text : 0x80008000 - 0x808b8880   (8899 kB)
> >       .init : 0x808b9000 - 0x80919080   ( 385 kB)
> >       .data : 0x8091a000 - 0x80972680   ( 354 kB)
> >        .bss : 0x8097268c - 0x809dbc00   ( 422 kB)
> > SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
> Preemptible
> > hierarchical RCU implementation.
> >         RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
> > RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
> > Calibrating delay loop (skipped) already calibrated this CPU6.00
> > BogoMIPS (lpj=30000)
> > NR_IRQS:16 nr_irqs:16 16
> > Switching to timer-based delay loop
> > sched_clock: 32 bits at 3000kHz,
> > [000001d8] *pgd=00000000
> > Booting Linux on physical CPU 0x0
> > Linux version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery
> > CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST
> 2016 Modules linked in:
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144 [00000008] *pgd=00000000
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap Modules linked in:
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 [00000000] *pgd=00000000 Linux
> > version 3.14.52+ (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench
> > Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > Modules linked in:
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache [00000000] *pgd=00000000 Machine model: CompuLab SBC-iMX7
> > bootconsole [earlycon0] enabled Modules linked in:
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache [00000000] *pgd=00000000 Machine model: CompuLab SBC-iMX7
> > bootconsole [earlycon0] enabled Modules linked in:
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > nPU: PIPT / VIPT nonaliasing data cacCPhUe1,:  VfIaPiTl ealdia stion
> > gc oimnes tornulctiinoe  Braoucghhet m 1Ma chCiPnUes
> > seSMlP::  CToomtaplu Loafb  S1B C-pirMoXc7es asbo oatcctoivnastoelde
> > (6[.0e0a rBloygcooMnI0P]S )e.n AClPeU:d 0c mCaP: UC(MsA:)
> > rsetsaerrtveedd  i3n20  SMViCB m oadte .ac
> > 0000
> > cheemvotrmyp fpso:l iciyn:it iDaaltiaz ecda  writealloc On node 0
> > totalpages: 262144 aree_area_init_nVFoPde :s unpopdoer t0,  pvg0d.a3t:
> > 80i9m71p1l0e0m,e nntoord 4e1_ meamr_chmitaepc taubr7e5 9200 0p p 3
> 0D
> > MvAa rzioannet :7  r2e0v4 85 tes uspeidn cftorlr c ormee:m mianpi i a
> > lDiMzAe dz opnie:n c0t rpalge s sruebsseyrsvteedm
> >
> > h DMAre guzloanteo:r -2d62u14m4m yp:a gneos ,p aLrIaFmOe tebrastc
> > 31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Binux version 3.14.52+
> > (ilya at ilya-pc) NE(Tg:c cR evgeirssiotne r4e.d 7pr.o2t (oScoolu
> > fracmeirlyy  C1o6de nch Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb 15
> > 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410DMfAc:0 7p5r]e arlelvoicsaitoend  52 5(6A
> > RKMivB7 )p,o olc rf=1o0rc 5a3to8mi7cd ahCPeU:r PeInPt Ta l/ lVoIcaPtTi
> > noonns iasing datacp uciadclhee:,  uVsIPiTn g agloivaesirngn oir
> > nlsatrducdteiro
> > : cpauicdhlee
> > mpMnagc hignoev emrnoodrel :m enCuo
> >  abUs eS BWCD-iOMXG71
> >   rbeosoettc osnosuorlcee
> > [earlycon0] enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc pysOcno nno d3e0 304 0t0o0t0.ailopmaugxecs-:g p2r6:2
> > r1eg4m4a 11freeme _0axr3ea0_3i40n0i0t_0no-d0ex3:0 3no4dfef f0f, ]p
> > grdeagti s8t0er9ed7 c, snyosdcoen_ m3e0m3_50m0a0p0 .aobc7o5t90p00-
> el
> > :DM Ar ezgomanpe :[ m2e0m48  0pxa3g0e3s50 00u0s-ed0 xf3o0r3
> > 5mfefmffm]a pr o s teDrMeA dz
> > : 0 pagseyss croesne r3v0e3d6
> > 6f  0D.MaAn zaonteo:p:  2r6e2g1m4a4p  pa[gmeesm, 0 xL3I03F6O0
> > 0b0a0t-c0hx:33013 ffPE]R CrePgiUs:t eErmbeedd
> > d1 8 pvdad1gp0eds:/ c8p0u0  @<a-b-7>3 1520000 0m Vs 8a3t2 01 0r080
> > 1m9V2
> > 056 vdud13p22:7 61810
> > x--B>o o1ti3n0g0  mLVin u
> > 30 physical CPUsy sc0oxn0
> >  0L0i0n0ux. svrecr:si orne g3m.a1p4 .[m5em2 +0
> > x(3i0l39y0a0 at i0l0y-a0-xp3c0)3 9f(fgfccf ]v reergsiiosnt e4r.e7.d2
> > 9ourcery CodeDBDeRn cthy pLei itse  2D0D1R23.!0
> > -64) ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > sPU: ARMv7 Profacileesdso rt o[ 4f1i0nfdc 0o7c5o]tp  nroedvei ofna i5l
> > e(dAR Mtvo 7fi)n,d  corc=o1t0pc 5n38o7dd e
> > ghUw: -PbIrPeTa k/p oViInPt:T f ounnodn a5l i(a+s1i nrge sdeartvae
> > dc)a cbhree,a kVIpPTo ianltia sianngd  in4s twartucchtpiooinn tc
> > archee  mtaecrhsi.ne
> > mhewl:- bCroemakppouiLnabt S:B Cm-aixMiXm7u etcbhopooticnotn
> ssoilzee
> > [eiarsl y8c onb0]y teensab.l  d
> > 0ma: CMA: reserviemdx 73d2-0p iMnicBt ralt  3a0c20c00000000
> > dMoemmuoxrc-yl ppsorl:i icniyt:i Daaltizae dca chIeM X
> > wpriintceatlrlloc noOenr
> > 0 0 tiomtxa7ldp-apgiensc:t r2l6 320134340  .frieoem_uarxeac_:i
> > inniitt_inoadlei: zneodd eI M0X,  ppigndcatt r8l0 9dr7i1v1e0r0,
> > ode_mem_map ab759000
> >   DMUM iAs  zroenaed:y  2f0o4r 8c rpoasgse sc oursee dco mfmourn
> imceatmimoanp!
> >
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > tooting biLoi:n ucxr eaotne p hsylasbi ca<l bCiPoU- 00>x 0a
> > 0
> > 2ux version 3.14.52+ (ilya at ilya-pc) (gcc vmexrss-idomna  43.37.020
> > 00(0S0ou.rcdemray- aCpobdhe:B einnitciha Lliitzeed
> > b2.09-64) us)b _#ot8g 1SM_P vPbRuEsE: M5P0T 0M0o mnV  Fe
> > 35 1f4e:c51_5p:h0y8_n rIeSTs e2t:0 136
> > 0 m[0V00 0
> > 04]pl a*tpgfd=o0r0m 0r0e0g0u0l0at
> > =1.P1U5::  DArRMiv7v ePrr orecg-efsisoxre d-[v4o10lftcag0e 7r5e]q
> > ureevisstis opnr 5o (bAeR Mdve7f)e,r raclr
> > 453t8s7cd20
> > IreCPgU::  P3I3P00T m V/  V
> > T plnaotnfaolrima srienggu ldaattoar .c1a7c:h Der,i VvIePrT
> > reag-lfiiasxiend-gvo litnasgter urcetiqounes tcsa cpher liM
> > odedfuelrerasl rpleadt ifn:o
> > - lMcadc_hinnsetb y_m3ovde3l.:18 :C omDpruivLera br eSgBC--ifMiXxe7d
> > bboolottacgeo rnesqoulees [tesa rplroybec odn0e]f ereranla ed
> > 0ma: CMASC:S Ir esusbesryvsedt 3e2m0 i nMiitBi aalti zace0d0
> > 00
> > ieusmbcoorrye :p orleigciys:te rDeatda  necwa chien twerritfeaaclel
> > odcr  r Ouns bnofdse etoustbaclopraeg:e sr:e g2i6s2t1e4r4  nefrwe
> > ei_natreear_fianciet _dnordiev:e rn ohdeu b0 vpusgbdcato r8e0:97
> > 11r0e0g,i stneordee_dm emn_emwa pd eabv7i5c9e0 d0r0i
> > r   uDMsAb
> > oneus:bp h2y0_4n8o pp1.a1g0es  suuspepdl yf ovrc cm enmmoatp f
> dd  ,DM
> > Au siznogn ed: u0m mpayg erse gruelsaetrovre
> >
> > nsb  pDMhA yz_onnoep:2 .21612 1s44u ppplayg evsc,c  LnIoFOt
> > bfaotuncdh,: u3s1i edPuEmmRyC PrUeg:u lEamtbeodrd
> >  8 pages/cpu @ab735000 s8320 r8192 d16256 u32768 Booting Linux on
> > physical CPU 0x0 Linux version 3.14.52+ (ilya at ilya-pc) (gcc version
> > 4.7.2 (Sourcery CodeBench Lite 2012.09-64) ) #8 SMP PREEMPT Mon Feb
> 15
> > 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> >   DMA zone: 2048 pages used for memmap
> >   DMA zone: 0 pages reserved
> >   DMA zone: 262144 pages, LIFO batch:31
> > PERCPU: Embedded 8 pages/cpu @ab735000 s8320 r8192 d16256 u32768
> > Booting Linux on physical CPU 0x0 Linux version 3.14.52+
> > (ilya at ilya-pc) (gcc version 4.7.2 (Sourcery CodeBench Lite 2012.09-64)
> > ) #8 SMP PREEMPT Mon Feb 15 14:55:08 IST 2016
> > CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction
> > cache Machine model: CompuLab SBC-iMX7 bootconsole [earlycon0]
> enabled
> > cma: CMA: reserved 320 MiB at ac000000 Memory policy: Data cache
> > writealloc On node 0 totalpages: 262144
> > free_area_init_node: node 0, pgdat 80971100, node_mem_map ab759000
> > [00000000] *pgd=00000000
> >   DMA zone: 2048 pages used for memmap
> >

iMX7d cpu1 issue

[Ilya Ledvich]

Hi!

On 02/18/2016 05:24 PM, Frank Li wrote:
>
>
>> -----Original Message-----
>> From: Shawn Guo [mailto:shawnguo at kernel.org]
>> Sent: Thursday, February 18, 2016 8:09 AM
>> To: Ilya Ledvich <ilya@compulab.co.il>
>> Cc: linux-arm-kernel at lists.infradead.org; Frank Li <frank.li@nxp.com>;
>> Yongcai Huang <anson.huang@nxp.com>
>> Subject: Re: iMX7d cpu1 issue
>>
>> On Tue, Feb 16, 2016 at 09:56:47AM +0200, Ilya Ledvich wrote:
>>> Hi Shawn,
>>> I'm working on Compulab CL-SOM-IMX7 device
>>> (http://www.compulab.co.il/products/computer-on-modules/cl-som-
>> imx7-fr
>>> eescale-i-mx-7-system-on-module)
>>> based on Freescale iMX7d CPU.
>>> I use the Freescale latest BSP imx_3.14.52_1.1.0_ga  and the Linux
>>> mainline v4.4-rc6 as a reference.
>>> I observe an issue with bringing up the second CPU core. Briefly, the
>>> kernel can successfully boot only when CPU1 fails to come online.
>>> In this case the boot log shows the following messages:
>>> ...
>>> CPU1: failed to come online
>>> Brought up 1 CPUs
>>> SMP: Total of 1 processors activated (6.00 BogoMIPS).
>>> ...
>>>
>>> Otherwise, the device tries to start kernel several times until the
>>> boot process eventually crashes. Please see attached logs for more
>>> details.
>>> This never happens on mainline Linus kernel, because it never tries to
>>> bring up CPU1.
>>> Unfortunately, we cannot verify this behavior on reference board cause
>>> we have no one.
>>> Have you ever seen such behavior? Could you please advice something?
>
> Did you set arm,cpu-registers-not-fw-configured; in arch timer?

Yes, it's set in the imx7d.dtsi file included by my device .dts.

> How about your uboot version?
>
> Latest upstream uboot already boot A7 as no-security mode.

I actually use v2016.01 from the upstream and u-boot sources are based 
on on mx7dsabresd.c.

>
> Best regards
> Frank Li
>

Kind regards,
Ilya.

iMX7d cpu1 issue

[Frank Li]

> -----Original Message-----
> From: Ilya Ledvich [mailto:ilya at compulab.co.il]
> Sent: Thursday, February 18, 2016 10:44 AM
> To: Frank Li <frank.li@nxp.com>; Shawn Guo <shawnguo@kernel.org>
> Cc: linux-arm-kernel at lists.infradead.org; Yongcai Huang
> <anson.huang@nxp.com>
> Subject: Re: iMX7d cpu1 issue
> 
> Hi!
> 
> On 02/18/2016 05:24 PM, Frank Li wrote:
> >
> >
> >> -----Original Message-----
> >> From: Shawn Guo [mailto:shawnguo at kernel.org]
> >> Sent: Thursday, February 18, 2016 8:09 AM
> >> To: Ilya Ledvich <ilya@compulab.co.il>
> >> Cc: linux-arm-kernel at lists.infradead.org; Frank Li
> >> <frank.li@nxp.com>; Yongcai Huang <anson.huang@nxp.com>
> >> Subject: Re: iMX7d cpu1 issue
> >>
> >> On Tue, Feb 16, 2016 at 09:56:47AM +0200, Ilya Ledvich wrote:
> >>> Hi Shawn,
> >>> I'm working on Compulab CL-SOM-IMX7 device
> >>> (http://www.compulab.co.il/products/computer-on-modules/cl-som-
> >> imx7-fr
> >>> eescale-i-mx-7-system-on-module)
> >>> based on Freescale iMX7d CPU.
> >>> I use the Freescale latest BSP imx_3.14.52_1.1.0_ga  and the Linux
> >>> mainline v4.4-rc6 as a reference.
> >>> I observe an issue with bringing up the second CPU core. Briefly,
> >>> the kernel can successfully boot only when CPU1 fails to come online.
> >>> In this case the boot log shows the following messages:
> >>> ...
> >>> CPU1: failed to come online
> >>> Brought up 1 CPUs
> >>> SMP: Total of 1 processors activated (6.00 BogoMIPS).
> >>> ...
> >>>
> >>> Otherwise, the device tries to start kernel several times until the
> >>> boot process eventually crashes. Please see attached logs for more
> >>> details.
> >>> This never happens on mainline Linus kernel, because it never tries
> >>> to bring up CPU1.
> >>> Unfortunately, we cannot verify this behavior on reference board
> >>> cause we have no one.
> >>> Have you ever seen such behavior? Could you please advice something?
> >
> > Did you set arm,cpu-registers-not-fw-configured; in arch timer?
> 
> Yes, it's set in the imx7d.dtsi file included by my device .dts.
> 
> > How about your uboot version?
> >
> > Latest upstream uboot already boot A7 as no-security mode.
> 
> I actually use v2016.01 from the upstream and u-boot sources are based on
> on mx7dsabresd.c.

Can you try to disable NOSEC?

#define CONFIG_MX7_SEC

include/configs/mx7_common.h

Best regards
Frank Li

> 
> >
> > Best regards
> > Frank Li
> >
> 
> Kind regards,
> Ilya.

iMX7d cpu1 issue

[Ilya Ledvich]

Hi Frank,
Thank you for so brilliant suggestion!!!

> #define CONFIG_MX7_SEC

Seems it works!
The  CPU1 is brought up, and kernel can successfully boot!
Thanks a lot, guys!!!
Your help is much appreciated!
Kind regards,
Ilya.

iMX7d cpu1 issue

[Fabio Estevam]

Hi Ilya/Frank,

On Fri, Feb 19, 2016 at 6:11 AM, Ilya Ledvich <ilya@compulab.co.il> wrote:
> Hi Frank,
> Thank you for so brilliant suggestion!!!
>
>> #define CONFIG_MX7_SEC
>
>
> Seems it works!
> The  CPU1 is brought up, and kernel can successfully boot!

I changed U-boot as suggested:

--- a/include/configs/mx7_common.h
+++ b/include/configs/mx7_common.h
@@ -94,10 +94,7 @@
 #define CONFIG_CMD_FUSE
 #define CONFIG_MXC_OCOTP

-/*
- * Default boot linux kernel in no secure mode.
- * If want to boot kernel in secure mode, please define CONFIG_MX7_SEC
- */
+#define CONFIG_MX7_SEC
 #ifndef CONFIG_MX7_SEC
 #define CONFIG_ARMV7_NONSEC
 #define CONFIG_ARMV7_PSCI


but still see only one core brought up in the kernel:

[    0.003051] /cpus/cpu at 0 missing clock-frequency property
[    0.003076] /cpus/cpu at 1 missing clock-frequency property
[    0.003092] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.003157] Setting up static identity map for 0x80008280 - 0x800082f0
[    0.005152] Brought up 1 CPUs
[    0.005169] SMP: Total of 1 processors activated (48.00 BogoMIPS).

I am booting 4.5-rc5 on a imx7d-sdb board.

Any ideas on how to bring up the second core?

iMX7d cpu1 issue

[Ilya Ledvich]

Hi Fabio,
To the best of my understanding imx7d SMP support is missing in the 
mainline kernel.
I currently use Freescale git repo 
git://git.freescale.com/imx/linux-2.6-imx.git, branch imx_3.14.52_1.1.0_ga.
Kind regards,
Ilya.

On 02/21/2016 05:22 PM, Fabio Estevam wrote:
> Hi Ilya/Frank,
>
> On Fri, Feb 19, 2016 at 6:11 AM, Ilya Ledvich <ilya@compulab.co.il> wrote:
>> Hi Frank,
>> Thank you for so brilliant suggestion!!!
>>
>>> #define CONFIG_MX7_SEC
>>
>>
>> Seems it works!
>> The  CPU1 is brought up, and kernel can successfully boot!
>
> I changed U-boot as suggested:
>
> --- a/include/configs/mx7_common.h
> +++ b/include/configs/mx7_common.h
> @@ -94,10 +94,7 @@
>   #define CONFIG_CMD_FUSE
>   #define CONFIG_MXC_OCOTP
>
> -/*
> - * Default boot linux kernel in no secure mode.
> - * If want to boot kernel in secure mode, please define CONFIG_MX7_SEC
> - */
> +#define CONFIG_MX7_SEC
>   #ifndef CONFIG_MX7_SEC
>   #define CONFIG_ARMV7_NONSEC
>   #define CONFIG_ARMV7_PSCI
>
>
> but still see only one core brought up in the kernel:
>
> [    0.003051] /cpus/cpu at 0 missing clock-frequency property
> [    0.003076] /cpus/cpu at 1 missing clock-frequency property
> [    0.003092] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
> [    0.003157] Setting up static identity map for 0x80008280 - 0x800082f0
> [    0.005152] Brought up 1 CPUs
> [    0.005169] SMP: Total of 1 processors activated (48.00 BogoMIPS).
>
> I am booting 4.5-rc5 on a imx7d-sdb board.
>
> Any ideas on how to bring up the second core?
>

iMX7d cpu1 issue

[Frank Li]

> -----Original Message-----
> From: Fabio Estevam [mailto:festevam at gmail.com]
> Sent: Sunday, February 21, 2016 9:23 AM
> To: Ilya Ledvich <ilya@compulab.co.il>
> Cc: Frank Li <frank.li@nxp.com>; Shawn Guo <shawnguo@kernel.org>;
> Yongcai Huang <anson.huang@nxp.com>; linux-arm-
> kernel at lists.infradead.org
> Subject: Re: iMX7d cpu1 issue
> 
> Hi Ilya/Frank,
> 
> On Fri, Feb 19, 2016 at 6:11 AM, Ilya Ledvich <ilya@compulab.co.il> wrote:
> > Hi Frank,
> > Thank you for so brilliant suggestion!!!
> >
> >> #define CONFIG_MX7_SEC
> >
> >
> > Seems it works!
> > The  CPU1 is brought up, and kernel can successfully boot!
> 
> I changed U-boot as suggested:
> 
> --- a/include/configs/mx7_common.h
> +++ b/include/configs/mx7_common.h
> @@ -94,10 +94,7 @@
>  #define CONFIG_CMD_FUSE
>  #define CONFIG_MXC_OCOTP
> 
> -/*
> - * Default boot linux kernel in no secure mode.
> - * If want to boot kernel in secure mode, please define CONFIG_MX7_SEC
> - */
> +#define CONFIG_MX7_SEC

Upstream kernel use PSCI to enable second core.  You can't define CONFIG_MX7_SEC. 

NXP released kernel use legacy method, which require kernel run in security mode. So you have to define CONFIG_MX7_SEC.

Best regards
Frank Li

>  #ifndef CONFIG_MX7_SEC
>  #define CONFIG_ARMV7_NONSEC
>  #define CONFIG_ARMV7_PSCI
> 
> 
> but still see only one core brought up in the kernel:
> 
> [    0.003051] /cpus/cpu at 0 missing clock-frequency property
> [    0.003076] /cpus/cpu at 1 missing clock-frequency property
> [    0.003092] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
> [    0.003157] Setting up static identity map for 0x80008280 - 0x800082f0
> [    0.005152] Brought up 1 CPUs
> [    0.005169] SMP: Total of 1 processors activated (48.00 BogoMIPS).
> 
> I am booting 4.5-rc5 on a imx7d-sdb board.
> 
> Any ideas on how to bring up the second core?

iMX7d cpu1 issue

[Fabio Estevam]

Hi Frank,

On Mon, Feb 22, 2016 at 5:48 PM, Frank Li <frank.li@nxp.com> wrote:

> Upstream kernel use PSCI to enable second core.  You can't define CONFIG_MX7_SEC.
>
> NXP released kernel use legacy method, which require kernel run in security mode. So you have to define CONFIG_MX7_SEC.

Thanks for the clarification.

With linux-next I can see the two cores brought up:

[    0.005377] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.007734] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.007862] Brought up 2 CPU