What is kobs - ng and U boot?

[eunseokjung]

Hi, all.

Nowdays i'm using the I.MX28.

It is my first time to using LINUX and DSP. So i haven't the concept of these things.

I already read MCIMX28 Reference manual about bootmodes. But it was hard to understanding to me.

What i didn't understand is FCB and DBBT.

How to use these things? I found that FCB and DBBT are related with U Boot and kobs ng.

But i don't have idea of U Boot and Kobs ng.

Please tell these things and relationship between U Boot and Kobs ng.

Thank you.

[igorpadykov · Accepted solution]

Hi Eunseok

FCB is written to nand by kobs-ng linux tool and DBBT is maintained

automatically by linux NAND GPMI flash driver. NAND information

(ID bytes, timings, and dimensions) is stored in MTD tables :

drivers/mtd/nand/nand_ids.c

drivers/mtd/nand/nand_device_info.c

For the NAND to be recognized, it must have an entry in both tables.

There is no special relationship between U-Boot and kobs-ng,

U-Boot is bootloader application (WebHome < U-Boot < DENX ).

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------

[eunseokjung]

Thank you igor.

Where can i find kobs-ng linux tool? And how to use this? I can't find any document about this.

[igorpadykov]

Index of /buildsources/k/kobs-ng/kobs-ng-3.0.35-4.0.0

Best regards

igor

[eunseokjung]

And what is related with MfgTools and kobs-ng tool?

How to use kobs-ng tool? I can't find any documents about this.

Thank you