
13 Jan
2010
13 Jan
'10
11:37 a.m.
Hi,
I'll soon start an ARM based project (at91sam9g45), and am looking into booting options. I normally use PPC, so I'm not really familiar with the finer details of U-Boot on ARM. I would like to use a failsafe setup with 2x U-Boot images in NOR flash, and a mini bootloader (probably at91bootstrap based) to decide which to use. For that to work nicely, U-Boot would have to be PIC (pre-relocation).
I see there's CONFIG_SKIP_RELOCATE_UBOOT + CONFIG_LOWLEVEL_INIT. Can someone confirm that U-Boot is PIC on at91 if those two aren't defined, E.G. will it boot from any location in NOR?
Thanks.
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Bye, Peter Korsgaard