Hi Leonid & Ulf
Thank-you for the pointers to the atmel patched code and buildroot scripts.
Can I confirm with you that the correct way to set up u-boot for an at91rm9200 is to use two boot loaders. Can I also confirm that, to boot from parallel flash, the first stage boot loader is boot.bin and that this will load a gzipped version of u-boot. The fact that the atmel source from Ulf's ftp generates a gzipped binary when built suggests to me that this is so. I've seen different opinions on the newsgroup, including some pretty emphatic ones from Wolfgang that u-boot will just work on its own, and frankly am a bit confused!
If u-boot should be started by boot.bin are there any specific CONFIG settings to go along with this? Eg. do we need LOWLEVEL_INIT or not? Also I'd be grateful if you could point me at the CONFIG (if any) needed to boot from parallel flash and not dataflash. I think this used to have something to do with CONFIG_BOOTBINFUNC but now that's been replaced...?
Many thanks Craig
-----Original Message----- From: Leonid [mailto:Leonid@a-k-a.net] Sent: 10 September 2007 23:20 To: Craig Robinson; u-boot-users@lists.sourceforge.net Subject: RE: [U-Boot-Users] at91rm9200 - silent console
Unlike more "traditional" PPC versions of u-boot, at91... U-boot is not the first code running on the board. The first one is normally some small bootstrap, running from dataflash or flash itself - it depends on jumper settings and also u-bbot configuration must be right.
Search this list's archives - this question has been discussed many times in different forms.
Leonid.
-----Original Message----- From: u-boot-users-bounces@lists.sourceforge.net [mailto:u-boot-users-bounces@lists.sourceforge.net] On Behalf Of Craig Robinson Sent: Monday, September 10, 2007 8:46 AM To: u-boot-users@lists.sourceforge.net Subject: [U-Boot-Users] at91rm9200 - silent console
Dear List
I have a at91rm9200ek based board on which I am trying to get u boot 1.2.0 running, without success.
I have also tried to compile and run u-boot for the ek directly from the source, all be it with unmodified at91rm9200dk_config. This does not work either. When I load the uboot.bin into flash (with a J-Link ICE) at 0x10000000 and reboot I get nothing on the DBGU console. Is this what you would expect for an ek board with un-patched 1.2.0 source?
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