Loading Ramdisk file system image run time on target board.

Sonali Phatak

Intellectual 420 points

Hello All,

I have customized board of DM6446. My board runs my product which processes live video. I have following requirements

1. I need to upgrade my product on my board runtime means the only root file system which includes latest updates of my product. I will create a "filesys.gz" of my file system and should burn it on nand flash, this all can be done under uboot prompt (DvEVM#). but I want to burn/upload the file system runtime. I mean the file system should burnt on NAND flash while my video processing is running. How can we achieve this? can we call/use "run (U boot command which runs command in an enviroment variable)" once linux os is up?

Please help me on this ASAP as work is halted .

over 17 years ago

swami over 17 years ago

TI__Expert 7435 points

Sonali,

If your product has access to Network you could upload the latest firmware over EMAC interface. If not you could also look at flashing the product over USB.

regards

swami

Juan Gonzales over 17 years ago

TI__Mastermind 37340 points

Sonali Phatak said:

How can we achieve this? can we call/use "run (U boot command which runs command in an enviroment variable)" once linux os is up?

Swami had some great suggestions for your first question; with regards to your second question, you cannot access u-boot commands once Linux OS is up and running; first, many of the peripherals (e.g. NAND flash) may not even be available depending on how you configure your Linux kernel; second, if access to NAND flash is available, it is thru a different mechanism (NAND Linux kernel driver as opposed to u-boot). I hope this helps clear things up.

Sonali Phatak over 17 years ago in reply to Juan Gonzales

Intellectual 420 points

Hi Juan Gonzales !

Thanks for the information.

Best Regards

-swapnali

Sonali Phatak over 17 years ago in reply to swami

Intellectual 420 points

Hi! Swami,

can you give some link/pdf which explore this (upload the latest firmware over EMAC interface) more.

swami over 17 years ago in reply to Sonali Phatak

TI__Expert 7435 points

One possible option is mount a NFS file system and copy the firmware/filesytem from the NFS mount on to your flash over EMAC.

regards

swami

swami over 17 years ago in reply to Sonali Phatak

TI__Expert 7435 points

One possible option is to moung a NFS filesystem. After this you can copy the required firmware/filesystem from the NFS to your NAND flash.

regards

swami

Processors

Processors forum

Loading Ramdisk file system image run time on target board.

Hello All,

I have customized board of DM6446. My board runs my product which processes live video. I have following requirements

Please help me on this ASAP as work is halted .

How can we achieve this? can we call/use "run (U boot command which runs command in an enviroment variable)" once linux os is up?