AM3354: Can't boot with Processor SDK Linux for AM335X using SD card

Hi, 

I also tried https://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Overview_Building_the_SDK.html 

MACHINE=am335x-evm bitbake tisdk-base-image to build image. Booting the target board using this image gives following error.

U-Boot SPL 2018.11-rc1 (Dec 03 2020 - 09:45:53 +0000)
Trying to boot from MMC2


U-Boot 2018.11-rc1 (Dec 03 2020 - 09:45:53 +0000)

CPU : AM335X-GP rev 2.1
I2C: ready
DRAM: 512 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Loading Environment from MMC... OK
Saving Environment to MMC... Writing to MMC(1)... OK
Hit any key to stop autoboot: 0 
## Error: "findfdt" not defined 
## Error: "loadbootenv" not defined 
Unknown command 'dhcp' - try 'help' 
Unknown command 'tftp' - try 'help' 
Unknown command 'tftp' - try 'help' 

What can be done to get successful boot?

Thank you!

Hi Vismitha,

Where does the U-Boot binaries come from? Are they the default built in Processor SDK? If so, which version of the SDK?

Hi,

Yes I used the default built in Processor SDK.

ti-processor-sdk-linux-rt-am335x-evm-07.03.00.005-Linux-x86-Install.bin

Version: 07.03.00.005

But the console log you posted shows the uboot version is 2018.11-rc1, which is not from the Processor SDK.

Do you have the failure log using the prebuilt uboot binaries in Processor SDK v7.3?

Where can I find the failure log?

It seems like the cpu does not boot from SD card and instead use the old uboot on it. How can I make it to use SD card to boot?

Where is the old uboot stored on? Please check the sysboot switch settings on your board to ensure it is set to sdcard boot mode.

Is it possible to specify using uboot command line to use SD card to boot?

I am not sure I understand your question. You are trying to let ROM load and boot uboot from SD card, there is no uboot prompt yet, how do to type in uboot commands?

Right now the board boots up with uboot from mmc2 during which I get an option to stop the autoboot and issue command. So I was thinking if there is a way to boot from SD card at this point?

Is this on your custom board or any of the TI EVMs?

Yes its a custom board. It boots with an image built for another application. I want to erase it all and use Processor SDK Linux. How can I do that?

Hi Bin,

I have now verified my sysboot switch settings.

1.  SYSBOOT [ 4:0 ] = 10111b to boot from SD card

2. SD card with tisdk-default-image-am335x-evm gives cccccccccccccccccccccccccccccc on the console output

3. SD card with tisdk-base-image-am335x-evm gives nothing on the console output.

What is the problem here?

Thank you.

Regards,

Vismitha.