Linux/TMDSLCDK138: unable to read kernal from sd card

Hi,

Which SDK is this?

Best Regards,
Yordan

Hi Yordan,

TMDSLCDK138 is the SDK

Regards,
Allwyn

Well...if it used to work then all of sudden it did not...I would tend to think it was a hardware problem. Check to see if your microSD slot is not damaged. Lifted or bent pins?

You are seeing card problems in the u-boot stage. Do the working and non-working boards have the same u-boot? Is u-boot on the SD card? Then the ROM bootloader had no problem reading off the SD card. What are booting from?

Hi,
sorry for the mistake.

I am using " ti-processor-sdk-linux-omapl138-lcdk-04.02.00.09-Linux-x86-Install.bin"dowloaded from

" software-dl.ti.com/.../index_FDS.html "

Regards
Allwyn

Hi,

I am using " ti-processor-sdk-linux-omapl138-lcdk-04.02.00.09-Linux-x86-Install.bin"dowloaded from
software-dl.ti.com/.../index_FDS.html

and created SD card.

1 .I used to boot up the board and suddenly it did not working and showing the following

I2C: ready
DRAM: 128 MiB
WARNING: Caches not enabled
NAND: 512 MiB
MMC: davinci: 0
In: serial
Out: serial
Err: serial
Invalid MAC address read.
Net: DaVinci-EMAC
Warning: DaVinci-EMAC (eth0) using random MAC address - 6a:c2:e0:61:ba:87

Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
** Unable to read file uEnv.txt **
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
** File not found /boot/zImage **
=>

2. The u-boot on the SD card
3. I am able to boot up the same board with the SD card shipped with the board.
4.I am able to boot up another board with first mentioned SD card (The SD card that is not worked in first mentioned case).

Regards,
Allwyn

Hi,

What are the sysboot settings on your board (SW1)?

Best Regards,
Yordan

Hi yordan,

Dip switch configuration is,

SW1 : OFF OFF OFF ON OFF OFF OFF OFF

Regards
Allwyn

Strange, everything appears to be fine. Can you test with different sd card, as Norman suggested?

You use the create-sdcard.sh scirpt to create the bootable sd card, right? Also are you running the prebuilt images or are you building the kernel yourself? If you build your own kernel image, can you share the procedure you use?

Best Regards,
Yordan

Hi Yordan,

I tried with another SD card. But it is not working.
I tried to both prebuilt image and image built myself. Both are working in another board.

Regards
Allwyn

Allwyn,

I this case I think you are facing some hardware problem with this board.
Just to confirm you should be doing the following:
1. install the SDK.
2. cd ti-processor-sdk-linux-omapl138-lcdk-04.01.00.06/
3. sudo ./bin/create-sdcard.sh and follow the intaractive script.
Once the create-sdcard.sh script completes successfully you should copy the u-boot.ais file:
4. cd ~/ti-processor-sdk-linux-omapl138-lcdk-04.01.00.06/board-support/prebuilt-images
5. sudo dd if=u-boot-omapl138-lcdk.ais of=/dev/sd<N> seek=117 bs=512 conv=fsync

Do you follow this exact sequence?

Best Regards,
Yordan

Hi,

U-Boot 2017.01-00360-g596a87c-dirty (Feb 14 2018 - 16:42:30 +0530)

I2C: ready
DRAM: 128 MiB
WARNING: Caches not enabled
NAND: 512 MiB
MMC: davinci: 0
In: serial
Out: serial
Err: serial
Invalid MAC address read.
Net: DaVinci-EMAC
Warning: DaVinci-EMAC (eth0) using random MAC address - 02:c9:8e:52:fd:78

Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
** Unable to read file uEnv.txt **
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
** File not found /boot/zImage **
=> boot
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
** Unable to read file uEnv.txt **
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
** File not found /boot/zImage **
=> printenv
args_mmc=run finduuid;setenv bootargs console=${console} ${optargs} root=PARTUU}
baudrate=115200
boot_fdt=yes
boot_fit=0
bootcmd=run envboot; run mmcboot;
bootdelay=3
bootdir=/boot
bootenvfile=uEnv.txt
bootfile=zImage
bootpart=0:2
bootscript=echo Running bootscript from mmc${mmcdev} ...; source ${loadaddr}
console=ttyS2,115200n8
devnum=0
devtype=mmc
envboot=mmc dev ${mmcdev}; if mmc rescan; then echo SD/MMC found on device ${mm;
ethact=DaVinci-EMAC
fdtaddr=0xc0600000
fdtfile=da850-lcdk.dtb
finduuid=part uuid mmc ${bootpart} uuid
importbootenv=echo Importing environment from mmc${mmcdev} ...; env import -t $}
loadaddr=0xc0700000
loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}
loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr
loadfdt=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}
loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}
mmcboot=mmc dev ${mmcdev}; setenv devnum ${mmcdev}; setenv devtype mmc; if mmc ;
mmcdev=0
mmcloados=run args_mmc; if test ${boot_fdt} = yes || test ${boot_fdt} = try; th;
mmcrootfstype=ext4 rootwait
scriptaddr=0xc0600000
serverip=192.168.2.11
stderr=serial
stdin=serial
stdout=serial
ver=U-Boot 2017.01-00360-g596a87c-dirty (Feb 14 2018 - 16:42:30 +0530)

Environment size: 1894/65532 bytes
=>

I am able to print the printenv in u-boot.

Regards
Allwyn

Hi Yordan,

I did the procedure as you mentioned. It shows the same.

U-Boot SPL 2017.01-g590c7d7fe1 (Sep 26 2017 - 18:58:02)
Trying to boot from MMC1


U-Boot 2017.01-g590c7d7fe1 (Sep 26 2017 - 18:58:02 -0400)

I2C: ready
DRAM: 128 MiB
WARNING: Caches not enabled
NAND: 512 MiB
MMC: davinci: 0
In: serial
Out: serial
Err: serial
Invalid MAC address read.
Net: DaVinci-EMAC
Warning: DaVinci-EMAC (eth0) using random MAC address - 6a:c2:e0:61:ba:87

Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
** Unable to read file uEnv.txt **
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
** File not found /boot/zImage **
=>


Regards,
Allwyn

Hi Yordan,

Where can I get previous TI Processor SDK version?

Regards
Allwyn

Hi Yordan,

Thanks for your reply.

Regards
Allwyn

The link should be back soon. We've notified the development team.

Regards,
Yordan

Hi Yordan,

I tried to flash zImage to NAND when the board was working. I only exexuted
" U-Boot> tftp 0xc0700000 uImage " this command. after that I poweroff the board.
will it affect the board. I think it will not.

Regards,
Allwyn

Hi Yordan,

Any updates?

Regards
Allwyn

Hi,

Sorry for the delay. I was OoO.

The powering off the board after you executed " U-Boot> tftp 0xc0700000 uImage " should not do anything to the board.

However, now you're trying to boot the whole linux OS from the SD Card, right? I mean you have u-boot, linux kernel & filesystem on the SD Card, right? You are NOT trying to load the u-boot from sd-card and then the kernel from NAND or something like that.

Best Regards,
Yordan

Hi Yordan,

Thanks for your response .Board is working now. I changed the bootfile to zImage

Regards,
Allwyn