Dear Darius Augulis,
In message <4a784702.40...@gmail.com> you wrote:
>
> > No. TEXT_BASE is an absolute address.
>
> yes, but depends on the physical RAM base and size.
Only on ARM (and other architectures that copied it's broken
implementation). TEXT_BASE is an absolute address (in the boot flash)
on PowerPC.
> could you please explain more? why to the end of RAM?
YOu want to have a maximum of contiguous RAM available to load Linux
kernel, ramdisk images etc.
> for example I have 16MB RAM, base is 0x10000000. TEXT_BASE = 0x10400000.
> Why is better to set this to 0x10F00000 ? To have more stack and malloc
> memory? But U-boot will never exceed such limit? Please explain where I
> am wrong. Thanks!
With RAM from 0x10000000...0x10ffffff you should probably put
TEXT_BASE at 0x10f80000 which then would leave you some 15 MB of
contiguous RAM for your use.
With your setup you jusy have some 3+ MB below U-Boot and some 11+ MB
above it. It makes not much sense to have U-Boot sitting right in the
middle of precious RAM like this.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
The idea of male and female are universal constants.
-- Kirk, "Metamorphosis", stardate 3219.8
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
