I have bought new Jacinto 6 EVM board with REv-H ES2.0 and i am not able to boot the platform first time from sd card and Emmc

Hi Yordan ,

 I have followed the step in the link shared by you,

but i am not able to enter into Fastboot mode after coping the MLO and U-boot.img in sdcard and flashed.

When i boot into u-boot i am getting the following logs,

Trying to boot from MMC1
MMC Device 1 not found
*** Warning - No MMC card found, using default environment

reading u-boot.img
reading u-boot.img
reading u-boot.img
reading u-boot.img


U-Boot 2016.05-dirty (Apr 25 2017 - 17:38:42 +0530)

CPU  : DRA752-GP ES2.0
Model: TI DRA742
Board: DRA74x EVM REV H.0
DRAM:  4 GiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
** First descriptor is NOT a primary desc on 1:1 **
GUID Partition Table Header signature is wrong: 0x0 != 0x5452415020494645
part_get_info_efi: *** ERROR: Invalid GPT ***
GUID Partition Table Header signature is wrong: 0x0 != 0x5452415020494645
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
ERROR: cannot find partition: 'userdata'

at arch/arm/cpu/armv7/omap-common/utils.c:195/mmc_get_part_size()
Warning: fastboot.userdata_size: unable to calc
SCSI:  SATA link 0 timeout.
AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst 
scanning bus for devices...
Found 0 device(s).

Please guide me how to move to fastboot mode to flash the entire image to emmc.

If U have any working pre build images of MLO and U-boot.img

share with me.

Regards

Vincie Joe

Hi Vincie,

here is the link for the latest prebuilt binaries:
software-dl.ti.com/.../6AM_1_3_emmc.tgz

Regards,
Yordan

Hi Vincie,

one more thing: please make sure you have correct DIP Switch settings:
omapedia.org/.../6AM.1.3_Release_Notes

Regards,
Yordan

Hi Yordan,
I have used the 2.0 version dip switch and the software-dl.ti.com/.../6AM_1_3_emmc.tgz file,
still i am facing same issue, not able to get into fastboot mode.

May I know why this signature is wrong issue,

"** First descriptor is NOT a primary desc on 1:1 **
GUID Partition Table Header signature is wrong: 0x0 != 0x5452415020494645
part_get_info_efi: *** ERROR: Invalid GPT ***
GUID Partition Table Header signature is wrong: 0x0 != 0x5452415020494645
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
ERROR: cannot find partition: 'userdata'"

Please guide me to move further.

Regards
Vincie Joe

Hi Yordan,

 Any input on this issue

Regards

Vincie Joe

Hi Vincie,

I have forwarded the question to an U-boot expert to help with this error.

Regards,
Yordan

Hello Ravi,

  I am able to flash and boot the device .

Now platform is up and running fine. sorry for not mention it early.

But the issue is " Executing "reboot" command (adb reboot) from terminal prompt causes cpu hang in kernel..",

AS per ur advise i have purchased New Jacinto6EVM board with Rev-H ES:2.0 version,

Still I am facing the reboot issue.

When I have run the Reboot cmd script continuously more than 15 to 30 loop, the Board got stuck and not restarted. 

The board got stuck after u-boot and before kernel starts.

I have attached the screen shot were i got stuck.

Please provide me the proper solution to resolve it.

Hi, 

Any input on my query?

Regards

Vincie Joe

Hi, vincie prabakar,

I have ping the expert. He will answer soon.

Regards,
Mariya

Hi Vincie,

1) Do you see the Kernel boot hang every time you do reboot command? or some times?
2) Is the issue seen with "adb reboot" only? or does executing "reboot" command directly on console also results in same behavior?

Hi Vishal Mahaveer,

1) Do you see the Kernel boot hang every time you do reboot command? or some times?

      Kernel boot hang happen some time not frequently.

     when i do recursive adb reboot more than 15 times i able to observed once in 15 times.

2) Is the issue seen with "adb reboot" only? or does executing "reboot" command directly on console also results in same behavior?

     Yes, I observed this issue only when i run adb reboot contionusly more than 15 times.

Guide me how to overcome this issue.

Regards

Vincie Joe

Hi Vincie,

What do you mean by recursive?

Also, "adb reboot" is same as executing "reboot" command on console. Are you saying you don't see the issue when you do same experiment with console?

Regards,
Vishal

Hi Vishal,

Yes, but this is run inside the adb shell to reboot the ti board. both adb reboot and reboot is same as linux .

Recursive reboot ?

  I am using a script to run the adb reboot for automation testing.

This script will start the boot the android, after 10 sec i will trigger adb reboot from the script to reboot the jacinto platform.

This test will passes when 1000 loop of reboot the device.

But in this board after 15 to 20 loop the board hangs in kernel start.

Regards

Vincie Joe

 

Hi Vincie,

Could you test by increasing time between reboots?


Regards,
Vishal