Linux/AM5726: Kernel debug print

Hello,

What is the PSDK that you are using here?
I can not allocate PSDK that is using this kernel version.
Please check this e2e thread:
e2e.ti.com/.../590728

Hope this helps.

BR
Margarita

I am using 03.02.00.05 PSDK

Regards,
Prerak

Hi Magarita,

I am getting all prints aftre kernel start.
Only "Uncompressing Linux........done, booting the kernel" print doesn't appears.

Regards,
Prerak

Hello,

I see the this on my side:

....
107254 bytes read in 43 ms (2.4 MiB/s)
## Flattened Device Tree blob at 88000000
Booting using the fdt blob at 0x88000000
Loading Device Tree to 8ffe2000, end 8ffff2f5 ... OK

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.9.59-ga75d8e9305 (gtbldadm@ubuntu-16) (gcc version 6.2.1 20161016 (Linaro GCC 6.2-2016.11) ) #2 SMP PREEMPT Sat Dec 23 10:02:24 EST 2017
[ 0.000000] CPU: ARMv7 Processor [412fc0f2] revision 2 (ARMv7), cr=30c5387d
[ 0.000000] CPU: div instructions available: patching division code
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[ 0.000000] OF: fdt:Machine model: TI AM572x EVM Rev A3
[ 0.000000] efi: Getting EFI parameters from FDT:
....

Is this what you are seeing also?

BR
Margarita

Hi,

Yes i have seen same logs. That issue has been resolved. Thanks For your support.

I am facing another problem regarding kernel and filesystem.

I want to disable logs coming from kernel and filesystem on serial console.

I am able to disable kernel logs by setting 

#define CONSOLEDEV          "ttyO6" 

in " include/configs/coustom_board.h" in u-boot code. But still i can see filesystem logs on serial console.

Please suggest way to disable filesystem logs from serial console.

Below is the logs for your referance:

NAND read: device 0 offset 0xc00000, size 0x800000
 8388608 bytes read: OK
Looks like Main Kernel is corrupted Lets read from backup partition
Value Read is 0x25
 WDT Started
Kernel image @ 0x82000000 [ 0x000000 - 0x36ee40 ]
## Flattened Device Tree blob at 88000000
   Booting using the fdt blob at 0x88000000
   Loading Device Tree to 8ffe4000, end 8ffff7af ... OK

Starting kernel ...



 _____                    _____           _         _   
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|  
              |___|                    |___|            

Arago Project http://arago-project.org am57xx-evm ttyS2

Arago 2016.10 am57xx-evm ttyS2

Regards,

Prerak

Hello,

I am sorry for delay. If I understand your question right have you tried in uboot something like console null?

Please check these threads:
e2e.ti.com/.../299281
e2e.ti.com/.../2230139

BR
Margarita

Hi,

I have tried your suggested links. Below is the output for same.

1). e2e.ti.com/.../299281
But there is systemd instead of inittab in my architecture.

2). e2e.ti.com/.../2230139
I have tried the same thing as suggested in above link but it only disabled kernel logs. Filesystem logs still continue.


On top of above things, I have tried as per below link.

e2e.ti.com/.../2444450

But as Kemal suggest there is no effect of dts file if I am using "am57xx_evm_nodt_config" config file. But in my case, it affects.

Please help me to resolve this issue.

Regards,
Prerak

Hello,

I see in the menuconfig for u-boot [ ] Support a silent console (NEW) . Could you try this option?

BR
Margarita