Flutterby™! : Buildroot and AT91SAM9261-EK help

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Buildroot and AT91SAM9261-EK help

2008-11-14 02:40:51.71873+00 by Dan Lyke 3 comments

Okay, I know I'm not totally stupid about such things, but if you've got any idea how to successfully load the output of buildroot on to an AT91SAM9261-EK (or, for that matter, an AT91SAM9RL-EK or AT91SAM9XE-EK) Atmel ARM dev kit, using SAM-BA, could you give me a hand? I thought I understood the process, I think I know where everything should be going, but at best I'm getting:

>Start AT91Bootstrap...
>AT45DB62D detected
>Invalid Boot Area...
>Start application at [0x23f00000]

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comments in ascending chronological order (reverse):

#Comment Re: made: 2008-11-14 17:06:39.053125+00 by: Dan Lyke

Okay, getting further. Turns out everyone uses different flash locations for their images, I'm trying to figure out what buildroot uses so that I can pass that to the programmer script. Sigh.

#Comment Re: made: 2008-11-14 17:39:51.825353+00 by: Dan Lyke [edit history]

And this page describes the bus width fix for the Linux kernel on the AT91SAM9261-EK and AT91SAM9293-EK devices.

#Comment Re: made: 2008-11-14 19:14:59.592094+00 by: Dan Lyke

Awesome! Up and running, definitely going to need to document this, especially after I figure out why my compiles of the boot loaders aren't working, and once I understand better what the details of the various storage devices are.

Aaand, a few issues that I'm getting spew from the kernel on boot about, if I solve all of those issues I may be able to get boot to circa 10 seconds, which might be fast enough that I can convince those involved that Linux is a reasonable platform for this device (5 seconds is the current "gotta be at least" number).