[U-Boot] AT91RM9200 boots from NOR Flash or not

Nikumbh, Raj (IE10) Raj.Nikumbh at Honeywell.com
Mon Feb 22 08:29:44 CET 2010


Hi, 

I have compiled u-boot-latest with ELDK 4.1 for AT91RM9200EK board (as I have kept the memory configurations and crystals similar to the board).I am getting something on the hyper terminal now. My hyperterminal configuration 115200-8-N-1 Given below is the snapshot as it comes.

U
B-oo t02900. 8F(be2  20201- 1 :1041:)5

 I2C:   ready
DRAM:  !!BM

Please let me know if somebody faced a similar situation or any pointers to get out of this problem.
 
Regards
Raj Nikumbh   

-----Original Message-----
From: Eric Bénard [mailto:eric at eukrea.com] 
Sent: Saturday, February 20, 2010 6:52 PM
To: Nikumbh, Raj (IE10)
Cc: u-boot at lists.denx.de
Subject: Re: [U-Boot] AT91RM9200 boots from NOR Flash or not

Hi,

Le 20/02/2010 08:25, Maxim Podbereznyi a écrit :
> OK, then can you explain what software do you flash? Does rm9200 u-boot
> setup PLL? Because if it is not then you will never see anything at DBGU
> pins. Another problem can be with your RC filters for PLL. Did you use the
> same quartz as in the Atmel design? If not then you must calculate RC
> filters and change them on your board.
>
> BTW, if your SDRAM does not work then u-boot will never start :)
>
> 2010/2/19 Nikumbh, Raj (IE10)<Raj.Nikumbh at honeywell.com>
>
>>   Yeah I did pull it down at the startup. And I meant the same DBGU pins.
>>
the board support in board/eukrea/cpuat91 was working fine last time I 
tested it and this board is close to your configuration (AT91RM9200 + 
NOR Flash 16bits width) so maybe you can try it (you may just need to 
update SDRAM geometry and timings and SMC timings for your NOR flash).

Eric


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