[U-Boot] [PATCH 2/2] atmel: Update support of board AT91SAM9M10G45-EK to new style

[Thomas Petazzoni]

Le Fri, 05 Aug 2011 11:37:05 +0200,
Detlef Vollmann <dv at vollmann.ch> a écrit :

> The (maximum) size of the image to load is hardcoded into
> at91bootstrap. For most boards (including at91sam9m10g45-ek) this is
> 0x33900 if loading from DataFlash and 0x40000 if loading from NAND.
> 
> So if you didn't modify your at91bootstrap, you should get the same
> problem on AT91SAM9M10G45-EK if booting from DataFlash.

Correct. The thing is that I only tested the AT91SAM9M10G45-EK support
on Nandflash, as I haven't had the time to get the Dataflash support to
work again in the current U-Boot.

I have a custom board similar to AT91SAM9M10G45-EK here which boots
from Dataflash, but it uses an old 1.3.4 U-Boot (which I'd like to
upgrade), for which the binary is only 152K, which is less than
0x33900. I'll try to get a modern U-Boot working with Dataflash support
on AT91SAM9M10G45-EK, and this will require a small modification in
AT91Bootstrap.

It is a bit amazing to see that the size of U-Boot has increased from
154912 bytes in version 1.3.4 to 233252 bytes in the current Git (and
the latter has no support for Dataflash, while the former does).

Regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com