Re: [U-Boot] Port to at91sam9g45-ekes

Dear Morten Kristiansen,

Hi U-boot members. I have ported u-boot to the AT91SAM9G45-EKES board. I have, however, run into a little problem. The internal boot-ROM in the SAM9G45 processor only accepts boot-loaders up to 60K and the loader I have is already 70K. I therefore need an chainloader in between. Is there a recommended approach for this, something like

You are likely to end near 200k...

1. Use some other smaller bootloader to boot u-boot.

That would usually be AT91BOOTSTRAP, which initializes SDRAM and loads software from NAND, SPI, MMC etc.

2. Use a tiny version of u-boot to boot the real u-boot.

We don't have that (yet) for AT91.

3. Use pieces u-boot, e.g. by replacing start_armboot

Are you using current u-boot, like at least the released 2010.09 ?

Regards, Reinhard