Linux/TMDSLCDK138: Unable to read "uImage" from mmc 0:1

allwyn davis15

Part Number: TMDSLCDK138
Other Parts Discussed in Thread: OMAPL138

Tool/software: Linux

Hi,

I downloded " ti-processor-sdk-linux-omapl138-lcdk-04.01.00.06-Linux-x86-Install.bin " from " " then i gave permission and executed it.

Then i created SD card with the help of this " "

There are 2 partition in SD card 1.boot , 2. rootfs . In the boot partition contain u-boot.bin.
i put SD card in the Development kit. It shows

** Unable to read "uImage" from mmc 0:1 **
Wrong Image Format for bootm command
ERROR: can't get kernel image!
U-Boot >

How can i get uImage and kernal image?
How can i bootup the Linux?

Regards,

Allwyn

over 6 years ago

0 Yordan Kovachev over 6 years ago

TI__Guru**** 161600 points

Hi,

Did yo use the prebuilt images or did you use your custom images?

If you have a look at ~/ti-processor-sdk-linux-omapl138-lcdk-04.01.00.06/board-support/prebuilt-images/ you will see that the kernel image is not an uImage file it is a zImage (zImage-omapl138-lcdk.bin). You can also see this in the u-boot environment parameters (execute printenv in u-boot prompt):

=> printenv

args_mmc=run finduuid;setenv bootargs console=${console} ${optargs} root=PARTUUID=${uuid} rw rootfstype=${mmcrootfstype}

baudrate=115200

boot_fdt=yes

boot_fit=0

bootcmd=run envboot; run mmcboot;

bootdelay=3

bootdir=/boot

bootenvfile=uEnv.txt

bootfile=zImage

If you use uImage as kernel image, this is what is causing the error.

Best Regards,
Yordan

0 allwyn davis15 over 6 years ago in reply to Yordan Kovachev

Intellectual 690 points

Hi Yordan,

Thanks for your response.

How can I resolve the problem.?

After SD card creation . when power on , the following occurs,

NAND: 512 MiB
MMC: davinci: 0
Bad block table found at page 262080, version 0x01
Bad block table found at page 262016, version 0x01
*** Warning - bad CRC, using default environment

In: serial
Out: serial
Err: serial
ARM Clock : 456000000 Hz
DDR Clock : 150000000 Hz
Net: Ethernet PHY: GENERIC @ 0x07
DaVinci-EMAC
Hit any key to stop autoboot: 0
reading boot.scr

** Unable to read "boot.scr" from mmc 0:1 **
reading uImage

** Unable to read "uImage" from mmc 0:1 **
Wrong Image Format for bootm command
ERROR: can't get kernel image!

U-Boot >

U-Boot > printenv
baudrate=115200
bootargs=console=ttyS2,115200n8 root=/dev/mmcblk0p2 rw rootwait ip=off
bootcmd=if mmc rescan 0; then if fatload mmc 0 0xc0600000 boot.scr; then source 0xc0600000; else fatload mmc 0 0xc0700000 uImage; bootm c0700000; fi; else sf probe 0; sf read 0xc0700000 0x80000 0x220000; bootm 0xc0700000; fi
bootdelay=3
bootfile="uImage"
ethact=DaVinci-EMAC
ethaddr=00:00:a0:00:fb:c7
stderr=serial
stdin=serial
stdout=serial
ver=U-Boot 2010.12 (May 07 2012 - 16:09:45)

Environment size: 496/65532 bytes
U-Boot >

How can I change the uImage to zImage ?

How can I bootup the board?

Thanks and Regards,
Allwyn

0 Yordan Kovachev over 6 years ago in reply to allwyn davis15

TI__Guru**** 161600 points

Did yo use the prebuilt images or did you use your custom images to create the sd ?
Best Regards,
Yordan

0 allwyn davis15 over 6 years ago in reply to Yordan Kovachev

Intellectual 690 points

Hi,
I am using prebuilt image.

Regards,
Allwyn

0 allwyn davis15 over 6 years ago in reply to Yordan Kovachev

Intellectual 690 points

Hi,
I downloaded "ti-processor-sdk-linux-omapl138-lcdk-04.02.00.09-Linux-x86-Install.bin" from " software-dl.ti.com/.../index_FDS.html"
then I did following steps,

1. " chmod -R 777 ti-processor-sdk-linux-omapl138-lcdk-04.02.00.09-Linux-x86-Install.bin "
2. " ./ti-processor-sdk-linux-omapl138-lcdk-04.02.00.09-Linux-x86-Install.bin "
3. " ./setup.sh "
4. " make "

then I did SD card prepration using this guidlines "processors.wiki.ti.com/.../Processor_SDK_Linux_create_SD_card_script"

is that steps correct?
should i have to do anything more?
where can I get uImage from prebuilt image?

Regards
Allwyn

0 allwyn davis15 over 6 years ago in reply to Yordan Kovachev

Intellectual 690 points

Hi,

Could you please give me the commands to use prebuilt image?

and now i am using DIP switch configuration [1:8] =[ OFF ON ON ON OFF OFF OFF OFF]

Is that correct?

Regards
Allwyn

0 Yordan Kovachev over 6 years ago in reply to allwyn davis15

TI__Guru**** 161600 points

Ok, here is what you should do. Change dip switch configuration to:
[1:8] = OFF OFF OFF ON OFF OFF OFF OFF ===> this will boot your board from SD card.
With your original dip switch configuration you boot form the onboard memory.

Then you should do the following to create the correct sd card:
chmod +x ti-processor-sdk-linux-omapl138-lcdk-04.02.00.09-Linux-x86-Install.bin
./ti-processor-sdk-linux-omapl138-lcdk-04.02.00.09-Linux-x86-Install.bin ==> install in your $HOME directory.
cd ~/ti-processor-sdk-linux-omapl138-lcdk-04.02.00.09
~/ti-processor-sdk-linux-omapl138-lcdk-04.02.00.09$ sudo ./bin/create-sdcard.sh
Follow the script to create your sd card.
Then copy the ais signed mlo, using the bellow commands:
cd ~/ti-processor-sdk-linux-omapl138-lcdk-04.02.00.09/board-support/prebuilt-images
sudo dd if=u-boot-omapl138-lcdk.ais of=/dev/sd<N> seek=117 bs=512 conv=fsync

Now your sdcard is ready. Insert it in the board & power it on.

Best Regards,
Yordan

0 allwyn davis15 over 6 years ago in reply to Yordan Kovachev

Intellectual 690 points

Hi,

Thanks for your reply. The problem was with dip switch configuration. now it is working.

Regards
Allwyn

0 Yordan Kovachev over 6 years ago in reply to allwyn davis15

TI__Guru**** 161600 points

Thanks for updating the thread.

Best Regards,
Yordan

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Linux/TMDSLCDK138: Unable to read "uImage" from mmc 0:1