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imx6q starting kernel hangs

Question asked by tao wang on Jun 27, 2016
Latest reply on Jul 11, 2016 by tao wang


I encounter one problem recently.After power on, after uboot finishes, the kernel hangs..

I also try the method(chapter 1.1 and 1.2 ) by:  Common Problems - Linux kernel doesnt boot - RidgeRun Developer Connection

but problem still exists.

Because the uboot is supplied by the third parner ,I don't know  why the buled words occurs.

The platform information is as follows:

cpu: imx6q

board: customized board based on sabreAuto

os: android kk4.4.2_1.0.0,kernel:Linux 3.0.35


The following is the log(board is marked manualy on purpose ):



U-Boot 2014.04-00024-g5895096 (Apr 27 2016 - 23:57:08)



CPU:   Freescale i.MX6Q rev1.5 at 792 MHz

CPU:   Temperature 16 C, calibration data: 0x5744d47d

Reset cause: POR

Board: XXXXXXXX Board ==>(note:XXXX is marked manually on purpose)

I2C:   ready

DRAM:  2 GiB


SF: Detected S25FL164A with page size 256 Bytes, erase size 64 KiB, total 8 MiB

*** Warning - bad CRC, using default environment



No panel detected: default to Hannstar-XGA

Display: Hannstar-XGA (1024x768)

In:    serial

Out:   serial

Err:   serial

unsupported boot devices

check_and_clean: reg 0, flag_set 0

Recovery key pressed

Fastboot: Recovery command file founded!

Unsupported bootup device for recovery: dev: 5

flash target is MMC:1

Net:   Board Net Initialization Failed

No ethernet found.

Normal Boot

Hit '>' key to stop autoboot:  0

mmc1(part 0) is current device



MMC read: dev # 1, block # 2048, count 14336 ... 14336 blocks read: OK

booti 0x12000000

kernel   @ 10808000 (4753788)

ramdisk  @ 11800000 (499839)

kernel cmdline:

        use boot.img command line:

        console=ttymxc0,115200 androidboot.console=ttymxc0 vmalloc=400M init=/init video=mxcfb0:dev=lc      d,AT070-WVGA,if=RGB24,bpp=32 video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 video=mxcfb2:off fbme      m=10M,28M  fec_mac=1E:ED:19:27:1A:B3 androidboot.hardware=freescale androidboot.serialno=202091d4e3174      a01

No gpc device node -9, force to ldo-enable.



Starting kernel ...





waiting for your reply,Thanks!