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Altera_Forum's avatar
Altera_Forum
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15 years ago

Linux fails when running from flash during boot

Hello, I have having trouble getting my Linux image to boot completely without a kernel panic. I have been running my Linux image from RAM and it has been stable for a long time. I ...
Altera_Forum's avatar
Altera_Forum
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15 years ago

I think I found out my problem after scouring the nios-dev list. Because I am using the MMU, I need to specify virtual addresses when I run elf2flash. Specifically, I have to OR 0xC0000000 with addresses I use for the base/end addresses. I am not able to get to my hardware just yet, but this post gives me hope as this guy has the same behavior I do (kernel panic on cold boot, okay from RAM).

http://sopc.et.ntust.edu.tw/pipermail/nios2-dev/2010-march/003396.html

I think the information I needed is in the "Addressing for Devices" section here:

http://www.nioswiki.com/dasuboot

Do others agree?

Dave ...