TDA4VM: UART u-boot flash issue

Manish Ahlawat

Part Number: TDA4VM
Other Parts Discussed in Thread: UNIFLASH

Dear TI,

I was trying the UART method to transfer the u-boot binaries and images in http://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-jacinto7/06_02_00_07/exports/docs/linux/Foundational_Components_U-Boot.html#uart

The first 2 steps mentioned below worked through MCU UART :

$ sb --xmodem $OUT_R5/tiboot3.bin > $UART_BOOT_MCU_UART < $UART_BOOT_MCU_UART
$ sb --ymodem $SYSFW_ITB > $UART_BOOT_MCU_UART < $UART_BOOT_MCU_UART

The next two i tried by connecting to Main UART and it didn't work.

Do we need to do the below steps also with MCU UART or need to change MAIN UART after first two :

$ sb --ymodem $OUT_AXX/tispl.bin > $UART_BOOT_MAIN_UART < $UART_BOOT_MAIN_UART
$ sb --xmodem $OUT_AXX/u-boot.img > $UART_BOOT_MAIN_UART < $UART_BOOT_MAIN_UART

Also, when i repowered the hardware and connected again to MCU UART and tried the first two steps it didn't do anything. Is it some issue with UART ?

Regards
Manish

over 5 years ago

0 Keerthy J over 5 years ago

TI__Guru**** 163810 points

Manish,

SW8 Switch: 00000000
SW9 Switch: 01110000

Please note: Y-Modem to be used for sysfw.itb.Please try with pre-build images in SDK under board-support/prebuilt-images.

WHO	Loading WHAT	HW Module	Protocol
Boot ROM	tiboot3.bin	MCU_UART0	X-Modem
R5 SPL	sysfw.itb	MCU_UART0	Y-Modem
R5 SPL	tispl.bin	MAIN_UART0	Y-Modem
A53/A72 SPL	u-boot.img	MAIN_UART0	Y-Modem

Also MCU_UART0 is named MCU_UART on the board & MAIN_UART is named UART.

Share the traces from both MCU_UART0 & MAIN_UART0.

Also which SDK Version? Are you using latest 7.0: http://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-jacinto7/latest/index_FDS.html

Regards,
Keerthy

0 Manish Ahlawat over 5 years ago in reply to Keerthy J

Expert 2120 points

Hi Keerthy,

We are using Version 06_02.

Can i use UNIFLASH to flash the rootFS and if i use OSPI bootmode and if i flash my rootFS into eMMC , will boot from OSPI and rootFS from eMMC work together ?

We have flash only 32MB so rootFS will not fit here, what are my options here for rootFS if i choose boot mode OSPI ?

Regards

Manish

0 Keerthy J over 5 years ago in reply to Manish Ahlawat

TI__Guru**** 163810 points

Manish,

Before we get to the next question could you please let me know if you succeeded with UART boot to u-boot
prompt?

Regards,
Keerthy

0 Manish Ahlawat over 5 years ago in reply to Keerthy J

Expert 2120 points

Hi Keerthy,

Yes it was a glitch with the USB port in my Linux Laptop, doing a restart helped. I am looking forward for 2nd question anser since we are stuck there.

Regards

Manish

0 Keerthy J over 5 years ago in reply to Manish Ahlawat

TI__Guru**** 163810 points

Manish,

That should be possible. One more suggestion is if you have the etherent port you can try NFS
as well.

I.e File system on NFS and use bootargs like this:

root=/dev/nfs rw nfsroot="IPADDR":"Rootfs_path_on_Host_ubuntu"

Best Regards,
Keerthy

0 Manish Ahlawat over 5 years ago in reply to Keerthy J

Expert 2120 points

Hi Keerthy,

I can try NFS for sure on EVM for now by adding the bootargs you mention here. Can i directly specify the bootargs in u-boot prompt ?

Can you please tell me what is the Flasher Image ? -- https://processors.wiki.ti.com/index.php/Sitara_Uniflash_Flash_Programming_with_Linux#Use_Uniflash_to_Flash_a_Board

I found something for Sitara board, do we have the same thing for TDA4 ? Would be great if you can help me with that ?

Regards

Manish

0 Keerthy J over 5 years ago in reply to Manish Ahlawat

TI__Guru**** 163810 points

Manish,

There is an elaborate guide for uniflash & even TDA4VM(J721e) related information is present.

http://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-jacinto7/latest/exports/docs/pdk_jacinto_07_00_00/docs/userguide/board/uniflash.html?highlight=uniflash

Hope that is what you were asking for.

If there are no further questions please resolve this thread.

Best Regards,
Keerthy

Processors

Processors forum

TDA4VM: UART u-boot flash issue