Re: [U-Boot-Users] CFG_FLASH_BASE and CFG_MONITOR_BASE question
Yes, I did try it out. Seems the u-boot works fine and the example application runs fine in SDRAM. But when I tried to load the kernel, kernel hangs when early_init (in head_4xx.S) is called. So I want to come back to u-boot and double check everything in u-boot is correct.
BTW, does anyone happen to have early_init problem and solved it? I saw a lot of discussions on the internet. But most of them didn't give a final solution. It doesn't matter if we are using same board or CPU. I just want to get some idea of what could be wrong. Any input would be appreciated!
Frank
From: Wolfgang Denk wd@denx.de To: "Frank Young" young726@hotmail.com CC: u-boot-users@lists.sourceforge.net Subject: Re: [U-Boot-Users] CFG_FLASH_BASE and CFG_MONITOR_BASE question Date: Wed, 14 Jul 2004 22:16:11 +0200
In message BAY2-F40UKfLDeyZEjp0003af84@hotmail.com you wrote:
Are these all what I need to change? Did I miss anything?
did you try it out? did it work?
Wolfgang Denk
-- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de "...and the fully armed nuclear warheads, are, of course, merely a courtesy detail."
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In message BAY2-F42kIFqFtucwpX000d8fad@hotmail.com you wrote:
Yes, I did try it out. Seems the u-boot works fine and the example application runs fine in SDRAM. But when I tried to load the kernel, kernel hangs when early_init (in head_4xx.S) is called. So I want to come back to u-boot and double check everything in u-boot is correct.
I think we've been there before. How do you know that the kernel "hangs", and what exactly means "hangs" here?
Don't tell me again that you added some debug code to toggle LED's or write to memory or something like that.
Your "it hangs" may be an "it chrashes because of your debug code" with your debug code, and something completely different without it.
Attach a debugger and find out what's really going on.
In a first step, I recommend to re-read the FAQ section.
BTW, does anyone happen to have early_init problem and solved it? I saw a
Yes. Many people have posted such problems before, and in all cases I can remember the only problem was some debug code that had been added, or the attempt to use tools (or engineers) that have no idea what virtual memory is.
lot of discussions on the internet. But most of them didn't give a final solution. It doesn't matter if we are using same board or CPU. I just want to get some idea of what could be wrong. Any input would be appreciated!
We've been there before. Everything has been said before. follow the advice, or ignore it - your choice. I give up here. I will stop reading this thread and replying to it.
Wolfgang Denk
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Wolfgang Denk