reboot stuck on console [tty0] enabled, bootconsole disabled

[niranjang]

Hi,

Problem:

reboot is stuck after the following lines once in every five or six times.

-------------------------------------------------------------------------

................

MXC_Early serial console at MMIO 0x53fbc000 (options '115200')

bootconsole [ttymxc0] enabled

Console: colour dummy device 80x30

console [tty0] enabled, bootconsole disabled

----------------------------------------------------------------------------

Environment:

IMX 53 board with following specifications.

##############################################

Board: MX53 LOCO

I2C:   ready

DRAM:  1 GiB

MMC:   FSL_SDHC: 0, FSL_SDHC: 1

In:    serial

Out:   serial

Err:   serial

CPU:   Freescale i.MX53 family rev2.1 at 1000 MHz

Reset cause: POR

Net:   FEC

##############################################

Kernel used is

Linux localhost 2.6.35.3-01159-g764f5bd #175 PREEMPT Tue Feb 3 17:22:08 IST 2015 armv7l GNU/Linux

NOTE: Using SD card in the board.

Please let me know how can I fix this problem.

Thank you.

Regards,

Niranjan

[igorpadykov]

Hi Niranjan

recommended to check if PMIC is cold reset too (like in below patches), refer to

attached Release Notes p.15.

If PMIC is not reset during reboot and before reboot, if DVFS had adjust some

voltage to lower,  there is chance to reset fail.

archlinuxarm-olinuxino/1132-ENGR00155891-mx53_loco-enable-mc34708-s-WDI-functio.patch at master · OL...

0318-ENGR00151310-mx53-smd-force-warm-reset-as-cold-reset.patch in PortingARMLinux | source code sea...

Best regards

igor

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[niranjang]

Hi Igor,

Thank you for reviewing the problem and your valuable response.

We have verified it in the Kernel code and the suggested patches are already applied.

Please let me know if you have any other suggestions on this problem.

Regards,

Niranjan

[niranjang]

Hi,

Also tried by setting video buffers are set to off in kernel command line in uEnv.txt

------

Kernel command line: console=ttymxc0,115200 console=tty0 root =/dev/mmcblk0p2 ro rootfstype=ext4 video=mxcdi1fb:off,VGA-SXGA vga

------

but it did not help.

Thank you.

Regards,

Niranjan