[U-Boot] at91rm9200dk -AT49BV642D flash
Hi all,
We have at91rm9200dk board it is working with AT49BV642D now can we change flash to AT49BV642DT
without touching the source code. (in uboot or kernel ) .
We are not using this flash for booting the uboot ( used for storing log files in application side)
So is there any modification required in code.
With Best Regards Rajeesh.R | +91-9895842332 | rajeesr@cms.com | Work is Worship Duty is God
Le 11/06/2010 12:53, rajeesh a écrit :
Hi all,
We have at91rm9200dk board it is working with AT49BV642D now can we change flash to AT49BV642DT
without touching the source code. (in uboot or kernel ) .
We are not using this flash for booting the uboot ( used for storing log files in application side)
So is there any modification required in code.
If that Flash is not used by U-boot, then replacing it (or removing it altogether) will obviously not affect U-boot.
What would be affected is the application that U-boot will transfer control to, but that's outside the scope of this list.
Amicalement,
Dear Albert ARIBAUD,
In message 4C121BA7.5070108@free.fr you wrote:
So is there any modification required in code.
If that Flash is not used by U-boot, then replacing it (or removing it altogether) will obviously not affect U-boot.
This is not really correct.
On the DK you can boot from NOR flash, and then the flash is extremely important for U-Boot.
But the only really critical thing is if the location and size of the environment sector mtches; as far as I can see the default location has it at offset 0x50000, i. e. already in the "big" 0x10000 uniformly sized sectors.
So replacing the flashes with a top sector type should be uncritical, indeed.
Best regards,
Wolfgang Denk
participants (3)
-
Albert ARIBAUD -
rajeesh -
Wolfgang Denk