SDRam check
Hi,
The u-boot starts fine on my walnut board and runs hello_world fine on that board. Does that mean the SDRAM settings are just fine? Since my linux kernel stops somewhere, I have to find a way to make sure the SDRAM runs OK.
Thanks,
Frank
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Quoted 3 lines · In message <[email protected]> you wrote:
The u-boot starts fine on my walnut board and runs
hello_worldfine on that board. Does that mean the SDRAM settings are just fine? Since my linux
No, it does not.
Quoted 1 line
kernel stops somewhere, I have to find a way to make sure the SDRAM runs OK.
The only real challenging test is to run Linux :-) No other test I've seen so far loads the system in a comparable way, especially when you have the root filesystem mounted over NFS, so a lot of network traffic (= DMA) is going on all the time.
All other tests more or less boil down to simple read / write accesses; this is fine to detect real hardware problems, but not sufficient to verify that burst mode accesses work reliably.
Best regards,
Wolfgang Denk
Signature · 4 lines
Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de It may be that your whole purpose in life is simply to serve as a warning to others.